GE Sensing and Inspection 001 PT900 User Manual AT600

General Electric Company PT900 AT600

User_Manual

GE
Measurement & Control Flow
© 2014 General Electric Company. All rights reserved.
Technical content subject to change without notice.
PT900
User’s Manual
Jun 2016
GE
Measurement & Control Flow
© 2014 General Electric Company. All rights reserved.
Technical content subject to change without notice.
PT900
Portable Ultrasonic Liquid Flow meter
User’s Manual
Jun. 2016
www.gemeasurement.com
Contents
PT900 User’s Manual
Contents
CHAPTER 1. INTRODUCTION ................................................................................................................................................ 6
1.1 OVERVIEW ................................................................................................................................................................ 6
1.2 THEORY OF OPERATION ................................................................................................................................................... 7
1.2.1 Transit-T ime Flow Measurement .................................................................................................................... 7
CHAPTER 2. INSTALLATION .................................................................................................................................................. 8
2.1 INTRODUCTION ............................................................................................................................................................. 8
2.2 UNPACKING THE PT900 SYSTEM ........................................................................................................................................ 9
2.3 MOUNT THE PORTABLE TRANSMITTER ................................................................................................................................. 10
2.4 INSTALLING PT900 CLAMP-ON FIXTURE .......................................................................................................................... 11
2.4.1 Mounting the Bracket .................................................................................................................................... 11
2.4.2 Installing the Transducers Bracket ................................................................................................................ 12
2.4.3 Installing the Transducers ............................................................................................................................. 13
2.5 MAKING ELECTRICAL CONNECTIONS .................................................................................................................................. 17
2.5.1 Wiring the Line Power ................................................................................................................................... 18
2.5.2 Wiring the Transducers ................................................................................................................................. 19
2.5.3 Wiring System Ground .................................................................................................................................. 20
2.5.4 Wiring Analog Output/HART Communication ............................................................................................... 20
2.5.5 Wiring Modbus Communication .................................................................................................................... 21
2.5.6 Wiring Frequency/Totalizer/Alarm Output ..................................................................................................... 21
2.5.7 Wiring Gate Input .......................................................................................................................................... 22
CHAPTER 3. INITIAL SETUP AND PROGRAMMING ............................................................................................................... 23
3.1 INTRODUCTION ........................................................................................................................................................... 23
3.2 CHARGE THE PT900 AND TABLET ..................................................................................................................................... 24
3.3 DOWNLOAD APP ONTO TABLET ....................................................................................................................................... 25
3.4 PT900 APP SETUP ...................................................................................................................................................... 25
3.5 FIRST TIME IN APP SCREEN ............................................................................................................................................. 27
3.6 HOW TO PROGRAM ....................................................................................................................................................... 29
3.6.1 How to set up a channel ................................................................................................................................ 29
3.6.2 How to set up PIPE ....................................................................................................................................... 30
3.6.3 How to set up FLUID ..................................................................................................................................... 32
3.6.4 How to set up transducer .............................................................................................................................. 34
3.6.5 How to set up PLACEMENT ......................................................................................................................... 36
3.6.6 How to set program options .......................................................................................................................... 39
3.6.7 How to change UNIT ..................................................................................................................................... 49
3.7 HOW TO MEASURE ....................................................................................................................................................... 50
3.7.1 Set up measurement ..................................................................................................................................... 50
3.7.2 View the measurement.................................................................................................................................. 51
3.8 HOW TO LOG ............................................................................................................................................................. 56
3.8.1 ADD LOG ...................................................................................................................................................... 56
3.8.2 STOP and DELETE LOG .............................................................................................................................. 58
3.8.3 EDIT LOG ...................................................................................................................................................... 59
3.9 HOW TO CONFIG TRANSMITTER ........................................................................................................................................ 60
3.9.1 How to configure transmitter SERVICE ........................................................................................................ 62
3.9.2 How to Calibration transmitter ....................................................................................................................... 62
3.9.3 How to Setup Meter....................................................................................................................................... 64
3.9.4 How to test meter .......................................................................................................................................... 66
3.9.5 How to Set ERROR LIMITS .......................................................................................................................... 68
3.10 HELP ........................................................................................................................................................................ 71
3.10.1 About ............................................................................................................................................................. 71
3.10.2 Help Topics ................................................................................................................................................... 72
3.10.3 Quick Start Guide .......................................................................................................................................... 73
Contents
PT900 User’s Manual
CHAPTER 4. ERROR CODES AND TROUBLESHOOTING ........................................................................................................ 74
4.1 ERROR DISPLAY IN THE MEASUREMENT .......................................................................................................................... 74
4.1.1 Error Channel ................................................................................................................................................ 74
4.1.2 Flow Error String ........................................................................................................................................... 74
4.2 DIAGNOSTICS ............................................................................................................................................................. 75
4.2.1 Introduction .................................................................................................................................................... 75
4.2.2 Flowcell Problems ......................................................................................................................................... 75
4.2.3 Transducer Problems .................................................................................................................................... 77
4.2.4 Bluetooth Connection Problems .................................................................................................................... 77
CHAPTER 5. COMMUNICATION .......................................................................................................................................... 78
5.1 MODBUS ................................................................................................................................................................. 78
5.1.1 Introduce ....................................................................................................................................................... 78
5.1.2 MODBUS Map ............................................................................................................................................... 78
5.2 BLUETOOTH ............................................................................................................................................................ 91
5.2.1 Introduce ....................................................................................................................................................... 91
APPENDIX A. SPECIFICATIONS ............................................................................................................................................. 92
APPENDIX B. DATA RECORDS .............................................................................................................................................. 95
APPENDIX C. MENU MAP ..................................................................................................................................................... 98
APPENDIX D. MEASURE TYPE ........................................................................................................................................... 99
D.1 CHANNEL 1 ...................................................................................................................................................................... 99
D.2 CHANNEL 2 ...................................................................................................................................................................... 99
D.3 CHANNEL AVERAGE .......................................................................................................................................................... 100
D.4 CHANNEL GENERAL .......................................................................................................................................................... 101
APPENDIX E. TRANSDUCER TYPE ....................................................................................................................................... 102
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PT900 User’s Manual 1
Information Paragraphs
Note: These paragraphs provide information that provides a deeper understanding of the situation, but is not essential
to the proper completion of the instructions.
IMPORTANT: These paragraphs provide information that emphasizes instructions that are essential to proper setup of
the equipment. Failure to follow these instructions carefully may cause unreliable performance.
CAUTION! This symbol indicates a risk of potential minor personal injury and/or severe damage to
the equipment, unless these instructions are followed carefully.
WARNING! This symbol indicates a risk of potential serious personal injury, unless these instructions
are followed carefully.
Safety Issues
WARNING! It is the responsibility of the user to make sure all local, county, state and national codes,
regulations, rules and laws related to safety and safe operating conditions are met for each
installation. The safety of any system incorporating the equipment is the responsibility of the
assembler of the system.
WARNING! It is the responsibility of the user to make sure the PWR, Hart, Modbus and IO cable can
meet the cable spec, which is described in Appendix A.
Auxiliary Equipment
Local Safety Standards
The user must make sure that he operates all auxiliary equipment in accordance with local codes, standards,
regulations, or laws applicable to safety.
Working Area
WARNING! Auxiliary equipment may have both manual and automatic modes of operation. As
equipment can move suddenly and without warning, do not enter the work cell of this equipment
during automatic operation, and do not enter the work envelope of this equipment during manual
operation. If you do, serious injury can result.
WARNING! Make sure that power to the auxiliary equipment is turned OFF and locked out before
you perform maintenance procedures or service on the equipment.
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PT900 User’s Manual 2
Paragraphes d’informations
Remarque: Ces paragraphes fournissent des informations à même de faciliter la compréhension de la situation, mais
n'est pas indispensable à la bonne utilisation des instructions.
IMPORTANT: Ces paragraphes fournissent des informations qui mettent l'accent sur les instructions qui sont
essentielles à une configuration correcte de l'équipement. Le non-respect de ces instructions peut
entraîner une dégradation des performances.
ATTENTION! Ce symbole indique un risque potentiel mineur de blessure aux personnes et / ou de
sérieux dommages à l'équipement, à moins que ces instructions soient rigoureusement suivies.
ATTENTION! Ce symbole indique un risque potentiel grave de blessures aux personnes, à moins
que ces instructions sont soient rigoureusement.
Questions de sécurité
ATTENTION! Il est de la responsabilité de l'utilisateur de s'assurer que tous les règlements, codes
et lois locaux, nationaux et européens relatifs à la sécurité et aux conditions d'exploitation en toute
sécurité soient respectés pour chaque installation. La sécurité de tout système intégrant l'équipement
est de la responsabilité de celui qui l’assemble.
ATTENTION! Il est de la responsabilité de l'utilisateur de s'assurer que lesbles d’alimentation, Hart,
Modbus et Entrées/Sortiespondent à la spécification décrite à l'annexe A.
Matériel auxiliaire
Standards de sécurité locaux
L'utilisateur doit s'assurer que les équipements auxiliaires utilisés sont en tout point conforme aux codes,
standards et réglementations relatifs à la sécurité.
Zone de travail
ATTENTION! Les équipements auxiliaires peuvent avoir à la fois des modes de fonctionnement
manuel et automatique. Comme l'équipement peut bouger brusquement et sans signe préalable, ne
pas entrer dans la zone de travail de ce dernier pendant le fonctionnement automatique, et ne pas
s’en approcher de trop près pendant le fonctionnement manuel. Si vous le faites, cela peut entraîner
de graves blessures.
ATTENTION! Assurez-vous que l'alimentation de l'équipement auxiliaire est éteinte et verrouillée
avant d'effectuer toute opération de maintenance ou d’entretien de l'équipement.
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PT900 User’s Manual 3
Qualification of Personnel
Make sure that all personnel have manufacturer-approved training applicable to the auxiliary equipment.
Personal Safety Equipment
Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary
equipment. Examples include safety glasses, protective headgear, safety shoes, etc.
Unauthorized Operation
Make sure that unauthorized personnel cannot gain access to the operation of the equipment.
Environmental Compliance
Waste Electrical and Electronic Equipment (WEEE) Directive
GE Measurement & Control is an active participant in Europes Waste Electrical and Electronic Equipment (WEEE) take-
back initiative, directive 2002/96/EC.
The equipment that you bought has required the extraction and use of natural resources for its production. It may
contain hazardous substances that could impact health and the environment.
In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the
natural resources, we encourage you to use the appropriate take-back systems. Those systems will reuse or recycle
most of the materials of your end life equipment in a sound way.
The crossed-out wheeled bin symbol invites you to use those systems.
If you need more information on the collection, reuse and recycling systems, please contact your local or regional
waste administration.
Visit
http://www.ge-mcs.com/en/about-us/environmental-health-and-safety/1741-weee-req.html
for take-back
instructions and more information about this initiative.
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PT900 User’s Manual 4
Caution:
This device complies with Part 15 of the FCC Rules / Industry Canada licence-exempt
RSS standard(s). Operation is subject to the following two conditions: (1) this device
may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux
appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions
suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de
l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d'en compromettre le fonctionnement.
Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate the
equipment.
This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates
uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged
to try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Under Industry Canada regulations, this radio transmitter may only operate using an
antenna of a type and maximum (or lesser) gain approved for the transmitter by
Industry Canada. To reduce potential radio interference to other users, the antenna
type and its gain should be so chosen that the equivalent isotropically radiated power
(e.i.r.p.) is not more than that necessary for successful communication.
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut
fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé
pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de
brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type
d'antenne et son gain de sorte que la puissance isotrope rayone équivalente
(p.i.r.e.) ne dépasse pas l'intensitécessaire à l'établissement d'une communication
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PT900 User’s Manual 5
satisfaisante.
This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the
following two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may cause
undesired operation of the device.
MPE Reminding
To satisfy FCC / IC RF exposure requirements, a separation distance of 20 cm or more should be
maintained between the antenna of this device and persons during device operation.
To ensure compliance, operations at closer than this distance is not recommended.
Les antennes installées doivent être situées de facon à ce que la population ne puisse
y être exposée à une distance de moin de 20 cm. Installer les antennes de facon à ce
que le personnel ne puisse approcher à 20 cm ou moins de la position centrale de l’
antenne.
La FCC des él tats-unis stipule que cet appareil doit être en tout temps éloigné d’au
moins 20 cm des personnes pendant son functionnement.
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PT900 User’s Manual 6
CHAPTER 1. INTRODUCTION
1.1 OVERVIEW
Thank you for purchasing the PT900 ultrasonic flow meter. PT900 is a portable transmitter for measurement of liquids
phase product. It’s designed for the industrial market including water, wastewater, steel, campus energy etc. PT900
will utilize a new electronics platform and industrial design to make it extremely simple to install and use in the field.
The PT900 consists of a transmitter with electronics, CRR transducers system including the new clamp-on fixture and
cable.
The PT900 system will also have optional accessories including a thickness gauge, clamp-on temperature
transmitters, and a fixture for up to 48”. PT900 system will connect via Bluetooth to a separate display (tablet) for
programming.
Figure 1: PT900 system (Pipe Mounting)
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PT900 User’s Manual 7
1.2 Theory of Operation
1.2.1 Transit-T ime Flow Measurement
In this method, two transducers serve as both ultrasonic signal generators and receivers. They are in acoustic
communication with each other, meaning the second transducer can receive ultrasonic signals transmitted by the
first transducer and vice versa.
In operation, each transducer functions as a transmitter, generating a certain number of acoustic pulses, and then as
a receiver for an identical number of pulses. The time interval between transmission and reception of the ultrasonic
signals is measured in both directions. When the liquid in the pipe is not flowing, the transit-time downstream equals
the transit-time upstream. When the liquid is flowing, the transit-time downstream is less than the transit-time
upstream.
The difference between the downstream and upstream transit times is proportional to the velocity of the flowing liquid,
and its sign indicates the direction of flow.
Figure 2: Flow and Transducer Paths (Dual Traverse)
Figure 3: Flow and Transducer Paths (Single Traverse)
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PT900 User’s Manual 8
CHAPTER 2. INSTALLATION
2.1 Introduction
To ensure safe and reliable operation of the PT900, the system must be installed in accordance with the established
guidelines. Those guidelines, explained in detail in this chapter, include the following topics:
Unpacking the PT900 system
Installing the electronics enclosure
Installing the clamp-on fixture and transducer system
Wiring the electronics enclosure
WARNING! The PT900 flow transmitter can measure the flow rate of many fluids, some
of which are potentially hazardous. The importance of proper safety practices cannot be
overemphasized.
Be sure to follow all applicable local safety codes and regulations for installing electrical
equipment and working with hazardous fluids or flow conditions. Consult company safety
personnel or local safety authorities to verify the safety of any procedure or practice.
ATTENTION EUROPEAN CUSTOMERS!
To
meet CE Mark and UL Mark requirements, all cables
must be installed as described in Wiring Cable Spec and Requirement on page 157.
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PT900 User’s Manual 9
2.2 UNPACKING THE PT900 SYSTEM
Before removing the PT900 system from the carrier case, please inspect the flow meter. Each instrument manufactured
by GE Measurement & Control is warranted to be free from defects in material and workmanship. Before discarding
any of the packing materials, account for all components and documentation listed on the packing slip. If anything is
missing or damaged, contact GE Customer Care immediately for assistance.
Please note that your PT900 system may come in different configuration based on your selection, so the packing list
could be a little different, below is the typical packing list:
10. One PT900 electronics
20. One Battery Pack
30. One AC power adaptor
40. One Power cord
50. One soft strap with metal clip for pipe mounting of PT900
60. One magnet clamp
70. One SD card with user manual and calibration sheet
80. Two transducers with couplant
90. One transducer cable
100. One clamp-on fixture
110. Two clamping fixture mounting chains
120. One OD tape
130. One thickness gauge
140. Quick installation guide
150. Calibration Sheet
Figure 4: Standard Packing List
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PT900 User’s Manual 10
2.3 MOUNT THE PORTABLE TRANSMITTER
The PT900 portable transmitter is housed in a plastic enclosure suitable for indoor or outdoor use, it can be put in the
hard case or be clamped onto the pipe, or be mounted by a magnet clamp, See Figure 5 below for the three different
mounting,
Figure 5: PT900 Electronics Mounting
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PT900 User’s Manual 11
2.4 INSTALLING PT900 CLAMP-ON FIXTURE
[Include any steps for unboxing and pre-assembly if necessary. Also there needs to be a section in the manual that
pertains to batteries, wiring, APP installation and necessary software/hardware platforms for installation purposes.
Other sections can be noted in PT878 manual.]
2.4.1 Mounting the Bracket
Figure 6: Pre-Assembly Process
Before mounting, check that the screw mechanisms (chain mechanism screws) that are pre-attached to the end
pieces (end flats) are unscrewed to their full potential [A] and that the last joint in the chain is secured within the
chain mechanism screw slot on both sides of the fixture [B]. It is highly recommended that the pin is engaged
securing the bottom portion of the clamp mechanism to the top portion [C] and that the thumb screw is tightened on
the movable clamp [D] so that no motion is allowed throughout the mounting process.
Figure 7: Distance Parameters
Adjust the bracket position so that the closest end flat rests at the preferred distance from inlet/outlet/joint/fitting of
the pipe.
A
B
C
D
Flow Direction
Fitting
Joint
Joint
Upstream
Downstream
>10 Diameters
>5 Diameters
>6”
>6”
Contents
PT900 User’s Manual 12
IMPORTANT: There must be allotted a straight run of at least 10 diameters (nominal pipe diameters) before the
upstream transducer and, preferably, at least 5 diameters after the downstream transducer. A
clearance of at least 6in should be provided from the edge of each end flat to the nearest
joint/welding/flange. Please see figure 2.2 for clarification.
Place the fixture so that minimal effort is required to maintain the fixture position (e.g. even if horizontal positioning is
eventually preferred, place the bracket on top of the pipe for mounting). Check that the pipe rests in the small slot
cutout on the bottom edge of the end flats.
Note: Make sure to mount the bracket with the final orientation in mind so that the markings on the rail rod can be
easily read.
Figure 8: Chain Connection
While holding the end flat closest to the pivotal inlet/outlet/joint/fitting, loop the metal chain around the pipe so that
it wraps all the way around. Pull the chain firmly, without compromising the brackets position, and force the chain to
slide into the small slot located at the opposite side of the end flat from the chain mechanism screw [E].
Repeat this process for the opposite chain so that the bracket is firmly mounted but has enough leeway to be able to
adjust bracket alignments.
Adjust the bracket into the preferred orientation on the pipe. Re-center the end flats on the pipe using the small slot
cutout on the bottom edge of the end flats as a tangent-to-pipe indicator. (Level may be necessary, depending on
accuracy required, to verify that the bracket is aligned down the center of the pipe.)
Once aligned, tighten the chains by twisting the nut on top of both chain mechanisms’ screws until the chain is tight
enough to resist the bracket’s movement [A, Figure 2.1]. Verify that this extra restraint did not affect the center
alignment. If this is the case, loosen the nuts, realign, and tighten the screws until the bracket is aligned and secured
tightly.
2.4.2 Installing the Transducers Bracket
Before installing the transducers, the transducer holder must be attached to the transducer. In many cases, the
transducer holder will already be installed when shipped. If this is the case, skip to section 2.4.3 for installation of the
transducers.
E
End Flat
Chain Screw
Mechanism
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PT900 User’s Manual 13
Screw the plunger mechanism into the bottom, central hole of the transducer holder until the first thread can just
barely be seen above the top lip of the holder.
In order to attach the transducers to their holder, slide the holder onto the top of the transducer so that the circle
slots near the top of the transducer sides are closely aligned with the filled holes on the side of the transducer holder.
Screw the hex socket set screws from the transducer housing into the holes of the transducer. Once tightened, these
screws will lock the housing into place. See Figure 2.4 for clarification.
Figure 9: Transducer Assembly
2.4.3 Installing the Transducers
If necessary, unscrew the thumb screw on the movable clamp to permit axial positioning.
Position the movable bottom clamp so that it rests at the measurement marking matching that of the preferred axial
distance. Measurement markings should be read on the side of the clamp indicated by the arrows.
Note: Distance between transducers vary based on pipe dimensions, number of traverses, wall thickness, etc. APP
can automatically calculate distance and help to position the transducer at a preferred distance for optimal
signal quality (described further in Chapter 3.6.5).
Tighten the thumb screw to lock movable clamp into place while being cautious not to adjust set axial positioning.
Clamp Holder
(Permanently Attached to
Top Portion of Clamp)
Transducer Holder (Semi-
Permanently Attached to
Transducer)
Note: Previous to any mounting,
transducer installed into
transducer housing via set
screws. When mounting, the
transducer housing slides into
the clamp housing and
attaches via a plunger.
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PT900 User’s Manual 14
Figure 10: Loaded Cam
Adjust the cam on both clamps into the loaded position so that the clamp holder rests in its furthest radial position
from the pipe (Figure 10).
Figure 11: Clamp “Assembly Position
Release the pin on both clamps so the top portion of the clamp can swing down freely, allowing easy access for
transducer installation (Figure 11).
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PT900 User’s Manual 15
Figure 12: Transducer Insertion
Slide both transducers, already locked into the transducer housing, into the clamp housing until the plunger from the
top of the transducer housing snaps into its position on the bottom of the clamp housing (Figure 12).
IMPORTANT: Slide the transducers into place with an orientation so that the wire connector is pointed away from
the opposing clamp. In other words, the wire connectors should be oriented in opposite directions.
The arrows on the end flats help to indicate the wire connector direction if needed.
Apply proper coupling to both of the transducer bottoms to help remove air impurities from readings and supply a
more fluent contact with the pipe.
Note: Water based lubricant is not recommended for heated, long term, or multiple traverse measurements.
Swing both of the top portions of the clamp back into alignment with the clamp bottom and lock them back into
place by sliding the pin through the hole on the side of the top portion into the hole on the side of the bottom clamp.
Figure 13: Released Cam
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PT900 User’s Manual 16
Release the cam so that the transducer is forced towards the pipe to make a firm contact surface for measurement
(Figure 13).
Caution! While releasing the cam, make sure that you are not making any contact with the clamp
surface. Potential that stored energy acting on cam will cause cam to make hard contact with clamp
face. Objects or body parts in between contact faces could result in minor injuries.
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PT900 User’s Manual 17
2.5 MAKING ELECTRICAL CONNECTIONS
! ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark Compliance.
This section contains instruction for making all the necessary electrical connections to the AT600 flow meter. Refer to
Figure 22 for the complete wiring diagram of the unit.
IMPORTANT:
Expect for the transducer connector, all electrical connectors are stored in their terminal blocks during shipment and
may be removed from the enclosure for more convenient wiring. Feed the cables through the cable gland holes on the
bottom of the enclosure, attach the wires to the appropriate connectors and plug the connectors back into their
terminal blocks.
Once the AT600 is completely wired, proceed to Chapter 3, Initial Setup, to configure the unit for operation.
Figure 14: Wiring Diagram
Note that HART or MODBUS communication are optional selections for the AT600 electronics and must be chosen at
the time of ordering.
To lead the wiring cables into the enclosure, power lines, transducer line and I/O lines are distributed to different gland
holes.
Refer to Appendix A.2 for cable criteria. Be sure to select the cable to connect the meter only to the specified cables.
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PT900 User’s Manual 18
Refer to Figure 23 for cable gland usage definition. If no cables feed through the cable clamp holes, it must be
blocked with the gland-insert provided together with meter.
Figure 15: Gland Usage Definition
2.5.1 Wiring the Line Power
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark Compliance.
The AT600 may be ordered from operation with power inputs of 85-264 VAC, or 12-28 VDC. The label on the shroud
inside the electronics enclosure, lists the required line voltage. Be sure to connect the meter only to the specified line
voltage.
Refer to Figure 16 below for power inputs of the meter.
Note: For compliance with the European Union’s Low Voltage Directive (LV Directive 2006/95/EC), this unit requires
and external power disconnect device such as a switch or circuit breaker. The disconnect device must be marked as
such, clearly visible, directly accessible, and located within 1.8 m (6 ft) of the AT600.
Refer to Figure 14 to locate terminal block and connect the line power as follows:
WARNING! Improper connection of the line power leads or connecting the meter to the incorrect line voltage will
damage the unit. It will also result in hazardous voltages at the flowcell and associated piping and within the
electronics console.
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PT900 User’s Manual 19
Figure 16: Meter SN Label (AC and DC Version)
Wiring the Line Power (cont.):
1. Strip 1/4” of insulation from the end of the power and neutral or line leads (or the positive and negative DC power
leads), and 1/2” from the end of the ground lead.
2. Connect the ground lead to the internal ground connection (GROUNDING 1) located on the bottom panel of the
enclosure (See Figure 14).
IMPORTANT: The incoming ground lead must be connected to the internal ground connection.
3. Connect the neutral or line lead (or the negative DC power lead) to L2/N(-) and the line power lead (or the
positive +DC power lead) to L1(+) as shown in Figure 14.
IMPORTANT: Do not remove the existing PC board ground wire or the cover ground wire.
2.5.2 Wiring the Transducers
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark Compliance.
Wiring a typical AT600 ultrasonic liquid flow meter system requires interconnection of the following components:
A pair of transducers installed inside of fixture;
The electronics console
To wire the transducers, complete the following steps:
WARNING! Before connecting the transducer, take them to a safe area and discharge any static build-up by
shorting the center conductor of the transducer cables to the metal shield on the cable connector.
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PT900 User’s Manual 20
1. Locate the transducer cables and connect them to the two transducers.
2. Connect the cable connector with yellow “DN” jacket on the cable to DN and connect cable connector with white
“UP” jacket on the cable to UP as shown in Figure 14. Then, secure the cable gland.
3. Make vertical insertion during cable connector is plugged into the receptacle to avoid connector destroy.
2.5.3 Wiring System Ground
Proper system ground must be connected to AT600 Meter. Refer to Figure 17 to locate the system ground screw. This
ground screw must be connected to a safe ground in the field.
Figure 17: System Grounding Screw
2.5.4 Wiring Analog Output/HART Communication
The standard configuration of the AT600 flow meter includes one isolated 0/4-20mA analog output. Connections to
this output may be made with standard twisted-pair wiring. The current loop impedance for this circuit must not
exceed 600 ohms.
Figure 18: Analog Output/HART Communication
To wire the analog output, complete the following steps:
1. Disconnect the main power to the unit and open the enclosure.
2. Install the required cable gland in the chosen gland hole on the bottom of the enclosure.
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PT900 User’s Manual 21
3. Refer to Figure 14 for the location of terminal block I/O and wire the terminal block as shown. Secure the cable
clamp.
The standard port is only 0/4-20mA analog output, but the HART communication is optional upon request.
Note: Analog Output is active mode. Do not supply a 24V supply to this circuit. The circuit is powered by the flow
meter.
Note: Prior to use, the analog output must be set up and calibrated. Proceed to the next section to continue the initial
wiring of the unit.
Note: When in meter configuration, the analog output will go to 3.6 mA. After exiting from configuration mode, the
meter will go leave 3.6mA.
2.5.5 Wiring Modbus Communication
The AT600 is equipped optionally Modbus communication port. The port is a two-wire, half-duplex RS485 interface.
The standard AT600 disables the Modbus communication. Proceed to the appropriate configuration for menu
instructions to activate the Modbus communication.
To wiring Modbus RS485 serial port, refer to Figure 14 and complete the following steps:
1. Disconnect the main power to the unit.
2. Install the required cable clamp in the chosen gland hole on the side of the electronics enclosure.
3. Feed one end of the cable through the gland hole, wire it to terminal block and secure the cable gland as shown
in Figure 23.
2.5.6 Wiring Frequency/Totalizer/Alarm Output
The AT600 can accommodate up to 2 channels of totalizer/frequency/alarm outputs. Each totalizer/frequency/alarm
can be configured as totalizer, frequency or alarm output by software setting. Refer to 3.6.4 section for output
setting.
Each totalizer/frequency/alarm output requires two wires. Wire this terminal block in accordance with the pin
number assignments shown in Figure 19. Figure 19 shows sample wiring diagrams of totalizer/frequency/alarm
output circuit.
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PT900 User’s Manual 22
Figure 19: Totalizer/Frequency/Alarm Output Wiring
2.5.7 Wiring Gate Input
The AT600 provides a Gate Contact Input port. This port is designed to start/stop the totalizer. During normal
measurement mode, operator can start the totalizer functionality by clicking the switch. And if operator wants to
stop the totalizer, another switching ON/OFF action is to stop the totalizer.
Refer to Figure 20 below for wiring Gate Input port.
Figure 20: Gate Input Wiring
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PT900 User’s Manual 23
CHAPTER 3. INITIAL SETUP AND PROGRAMMING
3.1 INTRODUCTION
This chapter provides instructions for programming the PT900 flow meter via APP to place it into operation. Before
the PT900 begin taking measurements, the User Preferences, Inputs/Outputs, and Sensor setup must be entered and
tested. All these items could be accessed via side bar menu at the top left. The basic function structure could be
summarized in below map.
Figure 21: APP High Level Map
Program
Measure
Logs
Unit options
Transmitters
Help
Device name
Connect/Disc
onnect
Service
Storage
Battery
Information
Transducer
s
Pipe
Fluid
Placement
Channel
Preset
View
Edit
Add
Edit
Stop
Delet
e
User manual
Language
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PT900 User’s Manual 24
3.2 CHARGE THE PT900 AND TABLET
Firstly, please make sure PT900 transmitter and tablet is charged. AC adaptor could be found in the attached box. If
any of them could not be powered on, please consult GE representative or www.gemeasurement.com for help.
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PT900 User’s Manual 25
3.3 DOWNLOAD APP ONTO TABLET
If the tablet is not pre-installed the application, please download the installation package from GE website, or
contact with local sales agent for help.
If the installation package is acquired, please download it to tablet via USB connection. And click install it like normal
Android application.
3.4 PT900 APP SETUP
Find and click the icon below will start up the PT900 application.
Figure 22: PT900 APP icon
After the PT900 APP is activated, the initial screen display like figure 23.
Figure 23: PT900 APP loading screen
After the loading screen, the default connection interface will be displayed as below.
If the user prefers to simulate the operation without actual device connection, please click the
WORK_OFFLINE to choose offline mode.
On the otherwise, if the user prefers to connect the actual device, please click Scan, and all the available
devices will be searched via BLUETOOTH and displayed as figure 24.
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Figure 24: PT900 APP scan screen
IMPORTANT: As a common protocol, blue tooth could be preinstalled in kinds of devices. But our APP would filter the
surrounding potential devices and only display the device which name is prefixed by PT900”.
Click BACK button of the tablet, it will back to PT900 application and all available flowmeter devices will be listed like
figure 25. Click the target device will activate pairing operation between the tablet and PT900 flowmeter.
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Figure 25: Pairing with flowmeter
3.5 FIRST TIME IN APP SCREEN
If “pairing” succeed, a real connection between the tablet and field device has been setup. Click the NEXT button will
turn to the operation menu which is displayed as figure 26.
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Figure 26: PT900 main menu
PROGRAM is used for choosing a channel and setting up the configuration.
MEASURE is used for viewing the real time measurements, error reports and diagnostics information.
LOGS are used for setup log file and managing logs stored in transmitter.
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3.6 HOW TO PROGRAM
Program option enables the user to set up each channel to measure the flow. PT900 supports two channels to
measure at most, channel 1 and channel 2. They are programmed individually. And the program information could
be saved as PRESETS file.
Figure 27: PROGRAM drop down menu
3.6.1 How to set up a channel
There are four main function blocks need to be configured to set up a channel.
PIPE
FLUID
TRANSDUCERS
PLACEMENT
Figure 28: PROGRAM top bar menu
Take Channel 1 as an example, in the top bar, three items could be used in below method.
Turn the channel from Off to On, all buttons will turn into edit-enable state. Or else, all data would turn into
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PT900 User’s Manual 30
not editable state.
Click COPY CH, all program data of another CHANNEL will be copied to current CHANNEL. In this example, it
will copy CHANNAL 2 data to CHANNEL 1 for easy configuration.
Click PRESETS button, all programmed data of current CHANNEL will be saved to a file in PT900 transmitter.
And these data file will be recalled for later use. These files could be got through USB link and upload to same
sites use.
3.6.2 How to set up PIPE
The PIPE option allows the user to define the pipe material and corresponding sound speed in it. These items vary
from the different pipe selection.
Figure 29: PROGRAM PIPE setup
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3.6.2.1 PIPE material
From the drop down list, user could select all available material for the pipe. Below table lists materials supported by
PT900 transmitter.
Name
Pipe Material
Other
Any material
Steel (Carbon)
Carbon Steel
Steel (Stainless)
Stainless Steel
Iron (Duct)
Duct Iron
Iron (Cast)
Cast Iron
Copper
Cuprum
Aluminum
Aluminum
Brass
Brass
30% Nickel
30% Nickel Copper Alloy
10% Nickel
10% Nickel Copper Alloy
Glass (Pyrex)
Pyrex Glass
Glass (Flint)
Flint Glass
Glass (Crown)
Crown Glass
Plastic (Nylon)
Nylon Plastic
Plastic (Polye)
Polyethylene
Plastic (Polyp)
Polypropylene
Plastic (PVC)
Polyvinyl chloride
Plastic (Acryl)
Acrylic Plastics
The PIPE SOUND SPEED varies from different pipe material. If OTHER is selected, PIPE SOUND SPEED should
be edited by user itself.
3.6.2.2 PIPE parameter
If PIPE MATERIAL is steel related and PIPE STANDARD is ANSI, NOMINAL and SCHEDULE need to be selected
from drop down list.
If PIPE MATERIAL is not steel related, PIPE STANDARD item will disappear.
The OUTDER DIAMETER item defines the outside diameter of the pipe.
The WALL THICKNESS item defines the wall thickness of the pipe.
The measurement units shown depend on the choices user has made in Unit Options.
3.6.2.3 LINING
The user should select YES if there is lining inside the pipe wall. In this condition, LINING MATERIAL and LINING
THICKNESS need to be edited, which also affect the time of transmit.
There are 7 kinds of lining material.
Name
Lining Material
Other
Other
Tar Epoxy
Tar Epoxy
Pyrex Glass
Pyrex Glass
Asbestos Cement
Asbestos Cement
Mortar
Mortar
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Rubber
Rubber
Teflon
Teflon
Lining sound speed varies from different lining material selection. If OTHER is selected as LINING MATERIAL,
LINING SOUND SPEED should be edited by user.
3.6.3 How to set up FLUID
Different fluid has different physical property, for example, sound speed and kinematic viscosity. To measure the flow
velocity accurately, user must edit the fluid parameter before use.
The FLUID option allows the user to set up the fluid parameter inside the pipe.
Figure 30: PROGRAM FLUID setup
The TRACKING WINDOW are used to detect the receive signal when the user are unsure of the fluid sound
speed. (Default operation is “Off”)
If TRACKING WINDOW is ON, MAX and MIN SOUND SPEED of fluid is required to edit by user.
If FLUID inside the pipe is water or water related, sound speed is constant.
If FLUID inside the pipe is other, sound speed is required to be edit by user.
Note, supported FLUID type and speeds vary with the user selection of TRACKING WINDOW and the ENERGY
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SWITCH option. Please check below table for detail.
Tracking Windows
Off
Tracking
Windows On
Energy Off
Other
Other
Water
Water
Sea Water
Oil
Oil (22°C)
Crude Oil
Lube Oil (X200)
Oil
Methanol
Ethanol
LN2 (-199°C)
Freon (R-12)
Energy On
Other
Other
Water
Water
Water/Glycol
Water/Glycol
The TEMPERATURE item is also required because sound speed is sensitive to temperature.
The KINEMATIC VISCOSITY item is required to define the fluid property.
The AVE FACTOR item is required to define the calculation percentage of current channel.
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3.6.4 How to set up transducer
Figure 31: PROGRAM TRANSDUCER setup
3.6.4.1 Transducer type
Transducer option enables the user to define the transducer type which has relation with the mounting method,
Wetted or Clamp-on.
Note, please refer to the liquid transducer installation guide for additional information about transducers and
configurations.
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Figure 32: PROGRAM TRANSDUCER setup list
The TRANSDUCERS drop-down list varies, depending on whether the user selected Wetted or Clamp-on
TRANSDUCER TYPE. Please refer to Appendix E for all kinds of supported transducer type.
If user have selected a standard transducer, the PT900 APP will display programmed with the needed
parameters.
If user have selected a special application transducer “Other”, all parameters need to be edited.
The FREQUENCY option defines to transmit a signal at a frequency to which the transducer can respond. The
drop-down list consists five options, ranging from 0.25MHz to 4MHz.
The TW option defines the time delay, which is actually the time the transducer signal spends travelling
through the transducer and cable. The PT900 calculates the flow rate from the upstream and downstream
transit times in the fluid, so the TW must be subtracted out for an accurate measurement. The factory
supplies the time delay on a sheet of paper inside the transducer case.
If user have selected Clamp-On transducer, three more inputs are required: WEDGE ANGLE, WEDGE
TEMPERATURE and WEDGE SOUND SPEED. But if transducer is standard, WEDGE ANGLE and WEDGE
SOUND SPEED is supplied by PT900. Only WEDGE TEMPERATURE needs to be input.
3.6.4.2 REYNOLDS Correction Factor
If the user turn the REYNOLDS CORRECTION FACTOR to ON, this correction factor will be effective in most
application, including all those that utilize clamp-on transducers. It makes a small adjustment to the flow rate
reported by the PT900. Reynolds Correction is necessary, as the velocity of the fluid measured along a diametrical
path must be related to the total area average velocity over the entire pipe cross-section.
3.6.4.3 Meter Factor
Click the METER FACTORS button, a menu will pop up like below.
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Figure 33: PROGRAM TRANSDUCER Meter Factor
The CALIBRATE FACTOR is used to calibrate or adjust the readings of the PT900 to another flow reference.
If K FACTOR is SINGLE, a single multiplier is required to be applied to the flow rate reported by the PT900.
Generally, if the customer has enabled the Reynolds Correction factor, the correction factor should be set to
1.00. Otherwise, the typical factor is between 0.5 and 2.00.
If CALIBRATE FACTOR is On and K FACOTR is TABLE, a table is required to edit. This function allows the user
to “curve fit” velocity calibration multiple data points (from several different data sources or flow variables) to
the flow rate reported by the PT900 flow meter.
Edit KFactor Table
Number of rows 0
Data Source
KFactor
1
2
3
4
5
6
OK
Cancel
3.6.5 How to set up PLACEMENT
The PLACEMENT option allows the user to define the mounting method of the transducer. This option depends on
the TRANSDUCER TYPE in TRANSDUCER option.
3.6.5.1 TRAVERSE
If transducer is WETTED mounting, two kinds of information are listed below TRAVERSES:
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o PATH LENGTH
o AXIAL LENGTH
If transducer is CLAMP-ON mounting, mounting is listed in specific graphics. There are 6 kinds of TRAVERSES
in clamp-on mounting.
Figure 34: PROGRAM CLAMP-ON Traverse
3.6.5.2 TRANSDUCER SPACING
This item allows the user to check the distance between up and down transducer. It’s not an editable value, and it
would be calculated by click SAVE & TEST button.
Figure 35: PROGRAM Transducer spacing
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After programmed all tabs PIPE, FLUID, TRANSDUCER and PLACEMENT, click GO TO MEASUREMENT button, the
screen would switch to measurement. Or click LOG DATA button to log data.
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3.6.6 How to set program options
From the side menu, click the “Program Options” under PROGRAM item. The screen would switch to program option.
Figure 36: Program Option
3.6.6.1 How to set up ENERGY option
The first item in Program Option is ENERGY. The ENERGY option enables the user to calculate the energy of a system
based on the temperature at a supply point, the temperature at a return point, and the flow of fluid through the
system.
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Figure 37: PROGRAM OPTION Energy setup
The first prompt is ENERGY SWITCH on/off. If turn it to OFF, the energy measurement option would be
disabled.
If turn the ENERGY SWITCH ON, there are three channels for energy measurement to choose. And the drops
down items in ENERGY CHANNEL are CH1, CH2, and Average channel.
Via ENERGY SYSTEM, user is enabled to set the measurement system as HEATING or COOLING system.
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Via FLOW LOCATION, user is enabled to set if to measure the flow at the point of supply or return.
Via ENTHALPY CALCULATION, user is enabled to decide if to use the default or custom method for energy
calculations. If Custom is chosen, a table would be enabled to enter the fluid enthalpy and temperature. At
most 10 groups of value could be edited.
Custom Enthalpy
Number of rows 0 ˅
Temperature (°C)
Enthalpy (KJ/kg/C)
1
2
3
4
5
6
7
8
9
10
OK
Cancel
Via CH1 DENSITY, the user is enabled to configure which source, a fixed value or variable value for fluid
density, will be used for measurement in channel 1.
o If “Fixed” is selected, a fixed fluid density would be required to input.
o If “Active” is selected, a table would be highlighted and required to be edited like below table.
Density
Number of rows 0 ˅
Temperature (°C)
Density(kg/m3)
1
2
3
4
5
6
7
8
9
10
OK
Cancel
Via CH2 DENSITY, the same to CH1 DENSITY, the user is enabled to configure which source, a fixed value or
variable value for fluid density, will be used for measurement in channel 2.
Via SUPPLY TEMPERATURE, the user is required to select a fixed or an active supply.
o If “Fixed” is selected, a desired temperature would be required.
o If “Active” is selected, source A or B should also be selected.
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Via RETURN TEMPERATURE, the user is required to select a fixed or an active value.
o If “Fixed” is selected, a desired temperature would be required.
o If “Active” is selected, source A or B should also be selected.
Note: if Supply temperature is Active Input A, it would not be selected in Return Temperature. The same to
Active input B.
3.6.6.2 How to set up INPUTS option
The ANALOG Input option enables the user to specify the parameters for energy supply temperature, energy return
temperature or general purpose while temperature is fixed. And the function scroll down option is based on the
energy option.
Figure 38: PROGRAM OPTION Inputs setup
In ENERGY tab, if ACTIVE INPUT A is selected as SUPPLY TEMPERATURE or RETURN TEMPERATURE, the
ANALOG INPUTS A FUNCTION would be set default as Supply Temp or Return Temp without change. And the
corresponding ZERO and SPAN value is required to edit.
In ENERGY tab, if ACTIVE INPUT A is not selected as SUPPLY TEMPERATURE or RETURN TEMPERATURE, the
ANALOG INPUTS A FUNCTION would be set default as OFF. But from drop-down menu, the FUNCTION could
be changed.
o If FUNCTION is OFF, the ZERO and SPAN are not required.
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o If FUNCTION is General Purpose, CH1 Temperature or CH2 Temperature, the ZERO and SPAN are
required to be edited.
ANALOG INPUTS B is same to ANALOG INPUTS A.
3.6.6.3 How to set up OUTPUTS option
3.6.6.3.1 How to Set up ANALOG OUTPUTS option
The ANALOG OUTPUTS option enables the user to specify the information to set up the ANALOG output parameters.
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Figure 39: PROGRAM OPTION Outputs setup
First, please select CHANNEL information via MEASUREMENT. Totally 4 channels are supported.
o CH1, channel 1
o CH2, channel 2
o AVE, average channel
o User, user function list
Via DATA SOURCE, user could specify different data source for the ANALOG OUTPUT. To check all kinds of the
data source, please refer to Appendix D. Measure Type.
Via ZERO, user could edit the zero (base) value for the analogue output. This value represents the 4mA output.
Via SPAN, user could edit the span (full) value for the analogue output. This value represents the 20mA output.
Via ERROR HANDLING, user could select how the PT900 will handle the analogue outputs in the event of a
fault condition. The meter offers four alternatives:
o Low (force output 3.6mA)
o High (force output 21mA)
o Hold (hold the current value)
o Other (customer edited ERROR VALUE)
3.6.6.3.2 How to Set up DIGITAL OUTPUTS option
Scroll down the ANALOG OUTPUTS, the DIGITAL OUTPUTS option would appear and it enables the user to set up
parameters necessary for a digital output.
There are five choices for user to select the output function:
Off
Pulse
Frequency
Alarm
Gate
1. If Off is selected, user will not be able to access any other parameters in this option.
2. If Pulse is selected, the flow meter will output a square wave pulse for each unit of flow that passes through
the pipeline.
Specify the channel first via MEASUREMENT, and then select the DATA SOURCE from below 6 choices in
drop down menu.
o Batch Forward Totalizer
o Batch Reverse Totalizer
o Batch Net Totalizer
o Inventory Forward Totalizer
o Inventory Reverse Totalizer
o Inventory Net Totalizer
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Next, PULSE VALUE and PULSE WIDTH are required to be input as desired value. And the two inputs vary
with the different data source selection.
Finally, ERROR HANDLING is required to be selected how the PT900 will handle the analogue outputs in
the event of a fault condition. In the drop down list, two choices are offered for alternatives:
o Hold (hold the current value)
o Stop (stop output)
3. If Frequency is selected, user should
Select the MEASUREMENT channel and DATA SOURCE first and for detail please refer to Appendix D.
Measure Type.
Next, BASE VALUE and FULL VALUE should be edited as the minimum and maximum value of the
selected data source.
In addition, FULL FREQUENCY should also be edited, which corresponds to the frequency of FULL VALUE.
Finally, ERROR HANDLING is also required for the case of a fault condition. In drop down list, four choices
are offered for alternatives:
o Low (force output at 0 kHz)
o High (force output at 10kHz)
o Hold (hold the last good value)
o Other (customer edited ERROR VALUE)
4. If Alarm is selected,
Firstly user should select the MEASUREMENT channel and DATA SOURCE like Frequency. Please refer to
Appendix D. Measure Type.
Next, ALARM STATE supports two alternatives
o Normal (Normally open, close for alarm)
o Fail Safe (Close)
ALARM TYPE should be selected from the drop down menu.
o Low (No alarm if measurement is greater than the threshold, alarm if measurement is less than
or equal to the threshold)
o High (No alarm if measurement is less than the threshold, alarm if measurement is greater than
or equal to the threshold)
o Fault (No alarm if no errors, alarm if errors.)
The ALARM VALUE is the threshold that trips the alarm, which corresponds to the value of ALARM TYPE.
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5. If Gate is selected, no more items need to be chosen.
Note: Gate is used to synchronize the totalizer with the meter calibration system. The gate stops and starts
the meter totalizer, so that the customer could compare the totalizer figure with the measured volume of
water in the weight tank.
3.6.6.3.3 How to Set up MODBUS option
The PT900 transmitter supports the MODBUS digital communication. To set up the Modbus, below parameter
need to be configured.
ADDRESS (Default is 1)
BAUD RATE (Default is 115200)
BITS PARITY (Default is 8 None)
STOP BITS (Default is 1 Bit)
3.6.6.4 How to set up USER FUNCTIONS option
User Functions enable the user to program mathematical equations on each measurement. The user could
also use any parameter in the meter to calculate a different parameter.
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Figure 40: PROGRAM OPTIONS User Function setup
1. SET USER FUNCTION
First, select the FUNCTION number, 1 through 5 from drop down list.
Second, create a LABEL for the function. The label corresponds to the measurement type, i.e., velocity
or temperature.
Third, create a name for UNITS SYMBOL, which corresponds to the measurement units, i.e., feet/sec or
degrees F for velocity or temperature.
Fourth, select the number of DECIMAL. There are 5 choices from drop down list, range from 0 to 4.
Finally, it turns to compile the function itself.
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o Click the OPERATOR, select a math syntax from 25 drop down lists.
+
-
*
/
^
(
)
E
MODE
exp
abs
inv
In
log
sqrt
sin
cos
tan
asin
acos
atan
tbl1
tbl2
tbl3
tbl4
o Click the MODE sysmbol in the middle of the OPERATOR drop down list, user is enabled to
select the desired data source from the desired channel.
o The tbl1/tbl2/tbl3/tbl4 symbol indicates the USER TABLE edited by user itself.
o Click SELECT button to confirm and click DELETE button to cancel the input.
When all function is entered, click SAVE button, the function would be saved.
2. USER TABLES
First, select TABLE number, 1 through 4 from drop down list.
Second, create a LABEL for the table.
Third, click the EDIT TABLE button to compile the table.
USER TABLES
Number of rows 0 ˅
X
Y
1
2
3
4
5
6
7
8
9
10
OK
Cancel
Finally, click the SAVE TABLE button to save the table.
3. After all modification, click LOG DATA button will switch to LOG function. Or click GO TO MEASURE button
will switch to MEASURE function.
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3.6.7 How to change UNIT
All measurement units shown in different screen depends on the choices user have made in the UNIT OPTION
interface. Enter the side bar menu from any function, select the Unit Options item in the PROGRAM drop down list,
the UNIT OPTIONS menu would pop up in the middle of the screen.
Figure 41: PROGRAM UNIT OPTION setup
First, please select either English or Metric units as global measurement units for the PT900 transmitter. The
selected units then become the default settings for every measurement that has the option for
metric/English units.
Scroll down the pop up menu, all items would be displayed. Some measurement unit is set as default and
would not be changed, such as Velocity, so it’s in grey. Some measurement unit is enabled to change, such
as volumetric, so the drop down list is enabled to change.
Finally, please don’t forget to click OK button to save the modification. Or click the CANCEL button to desert
the modification.
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3.7 HOW TO MEASURE
The PT900 is a transit-time ultrasonic flowmeter. When ultrasonic pulses are transmitted through a moving liquid,
the pulses that travel in the same direction as the fluid flow (downstream) travel slightly faster than the pulses that
travel against the flow (upstream). The PT900 uses various digital signal processing techniques, including cross-
correlation, to determine transit times and then uses the transit times to calculate flow velocity.
With this time-different technique, flow velocity would be calculated accurately. During this signal processing, many
related variables could be measured. And all these variables are useful to monitor the working status of the PT900
and the field instrument.
So PT900 application provides user a powerful function to monitor all different variables in real-time. From the side
bar menu, select the MEASURE option, variable measurement results would be showed like below figure 42.
All value displayed is the real-time measurement. But if system is OFFLINE, the value would always be the last got
number when previous ONLINE.
Figure 42: MEASUREMENT default display
3.7.1 Set up measurement
PT900 application enables the user to monitor at most 10 different variables at the same time. Click the EDIT button
on the top right of the measurement screen, the application would switch to measurement set up screen.
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Figure 43: MEASUREMENT Setup
First, please select CHANNEL. There are 4 choices in the drop down list.
CH1/CH2/AVE/GEN
Different CHANNEL support different MEASURE items. To check all kinds of the measure items, please refer
to Appendix D. Measure Type.
The UNITS option is a read-only item. It displays the current unit of the selected MEASURE item. To change
the default unit, please check the Unit Options item in Chapter 3.6.6.
Click ADD button, the selected MEASURE item would be added in real-time measurement list.
In the measurement list, click button, the selected item would be deleted.
In the left bottom, current list number/total list number would be displayed. At most 10 variables would be
monitored at the same time.
Click the OK button, the application would go to the measurement monitor screen.
3.7.2 View the measurement
Take below figure as example, user just open the CH1 and close CH2 in PROGRAM option. And no AI is connected in
GENERAL channel.
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3.7.2.1 Multi-measurement
The default measurement screen is multi-measurement, which means all measure items would be displayed in one
page with scroll down operation. And the indication of this display model is the highlighted icon in the top
middle.
Figure 44: MEASUREMENT Multi-display
Click the EDIT button in the top right corner, the application will go back to measurement set up screen.
Below the title and display model bar is the error status box. If system works fine, No Error is displayed as
upon figure. If certain error occurs, the error information would be displayed and flashing in red background.
3.7.2.2 One-measurement
Click the icon, the application will switch to one-measurement display model, which means only one
measurement would be displayed once and all other measurements should be switched by flip-over.
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Figure 45: MEASUREMENT One-display
The default one-measurement display is the value of the real-time measurement number like figure 45.
Click the icon in the top right corner, the display will switch to GRAPH mode. Like below figure, all the
historical value of this measurement would be displayed in graph.
Figure 46: MEASUREMENT Graph display
For the same operation, click the icon in the GRAPH mode, the display will go back to NUMBER mode.
In GRAPH mode, click the SETTING button, the user would be enabled to edit the min and max limitation of
the graph display.
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Figure 47: MEASUREMENT Graph Setting
In upon figure, switch to Manual option, the min and max Y edit box would be enabled. After edit, click OK
button, the edited value will take effect.
3.7.2.3 Diagnostic
Some key measurements are analysed to verify the system working status. These verifications are summarized in
DIAGNOSTIC function. And the diagnostic result is showed after click the icon in the top middle of the measure
screen.
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Figure 48: MEASUREMENT Diagnostic
In figure 48, channel 1 is active and channel 2 is inactive. And all the working status of channel 1 is good. No error is
report.
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3.8 HOW TO LOG
The PT900 transmitter supports a powerful and flexible data logging function. Diagnostic and measurement data
could be recorded into the file. With these log data, all working status and information could be present to the user.
Totally 4 channels are provided to be log:
o CHANNEL 1 (34 variables)
o CHANNEL 2 (34 variables)
o AVERAGE CHANNEL (12 variables)
o GENERAL CHANNEL (10 variables)
Please check Appendix D for all variables in different channel.
Start time and date, end time and date, and time interval should be selected to define the logging property.
Log data is recorded in .CSV format and saved in an embedded SD card. So log data could be read in all
kinds of text editor. And the log file could only be accessed via USB connection.
The frequency of the time interval, the length of the logging run, and the number of logs affect the total
memory occupied by LOG files. All memory used and left could be get in the TRANSMITTER STORAGE item.
3.8.1 ADD LOG
LOG function could be accessed from side bar menu or PROGRAM function. If user enter log screen first time, it’s
empty and a message would pop up.
Figure 49: First time enter LOG
By clicking the ADD button at the left bottom, user would be enabled to create a desired log file.
Note: firstly please synchronize the PT900 transmitter time with tablet time by clicking DATE & TIME button in
TRANSMITTER function.
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PT900 User’s Manual 57
Figure 50: Add Log
Log name, format, channel, interval, start date and time, end date and time should be edited. Click SAVE
button, the log file would be scheduled in the PT900 transmitter.
Parameter
Drop down
items
Description
LOG NAME
11 characters in most
FORMAT
Linear
Record all items one by one between the start time and end
time.
Circular
Record 100 items in most. If there are more than 100 items
between the start time and end time, new record will replace
the oldest ones.
CHANNEL
CH1
Channel 1, 34 variables in all
CH2
Channel 2, 34 variables in all
AVE
Average Channel, 12 variables in all
GEN
General Channel, 10 variables in all
INTERVAL
1~20s
The interval between two records, the unit is second.
START DATE &TIME
Date and time
Start point
END DATE & TIME
Date and time
End point
Only if the start time arrives, PT900 transmitter will start the desired log.
END TIME should be bigger than START TIME. Or else error message would pop up.
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Note, in theory, there is no upper limit for log number and log length. But it is physically limited to the capacity and
operation property of the SD card, which is embedded inside the PT900 transmitter. So please be careful to choose
the long time logging with short interval.
3.8.2 STOP and DELETE LOG
In the main interface of log function, all log items and log status could be listed like figure 51. PT900 application
provides user the function to change the status of log file, or manage the log files which is located in PT900 meter.
There are 3 statuses for a log file, pending, running, and stopped.
Figure 51: Log list
The icon means current log is still in pending status, which means start time is not arrived. In this
status, the log could be EDIT, DELETE and STOP.
The icon means current log finished. And user could read the final log file via USB connection to PT900
flowmeter. In this status, the log could be DELETE from the PT900 transmitter embedded SD card.
The icon means current log is running. In this status, the log file could be STOP before end time is
arrived.
Upon information could be summarized in below table.
Icon
Status
Function enabled
EDIT
DELETE
STOP
pending
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PT900 User’s Manual 59
Stopped
Running
Note, before click the EDIT/DELTE/STOP button, please select the object item with icon first.
3.8.3 EDIT LOG
If user dislikes the configuration of certain pending log file, EDIT function is provided. Select the object pending file,
click the EDIT button, the application would switch to log edit screen.
Note, only pending log could be edited.
Figure 52: Edit Log
In log edit screen, except log name, all parameters could be modified.
After modification, click UPDATE button, all configurations will be saved.
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3.9 HOW TO CONFIG TRANSMITTER
The APP also offers the selection to configure the PT900 transmitter. Launch the side bar menu from any sub-
function. Click the TRANSMITTER icon on the top, then APP will redirect to transmitter configure menu.
Figure 53: Side bar menu
If a PT900 flowmeter is connected by APP via Bluetooth, the TRANSMITTER option gives user the device information
about the PT900 meter, battery and storage usage. If connection is OFFLINE, the information would be unavailable.
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Figure 54: Transmitter Online Figure 55: Transmitter Offline
CONNECT/DISCONNECT button enables the user to connect a PT900 meter in OFFLINE MODE, or disconnect
the connected PT900 meter.
SERVICE button shows the user more configure function about PT900 meter.
The PT900 flowmeter is a portable device, and the battery capacity is an important parameter and it could
be read in percentage here. As shown in figure 55, in OFFLINE MODE, It would be unavailable.
The PT900 flowmeter contains an embedded SD card, which saves much important information during the
measurement and operation. The current STORAGE status could also be read and subdivide into
LOG/PERSETS/AVAILABLE SPACE. As shown in figure 55, in OFFLINE MODE, It would be unavailable too.
The PT900 flowmeter Serial No, firmware version, Model No could also be read. If firmware needed to be
update, please firstly put the new image into the SD card via USB connection, and then click UPDATE button.
The firmware in PT900 would be updated.
Note: the transmitter will not be available while firmware is updating. After updating, the transmitter will be
restarted. And the connection will be offline, please reconnect again. In OFFLINE MODE, It would be unavailable.
RESET button enables the user to reset the PT900 flow meter remotely.
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Note: Reset the meter will erase PRESETS and LOGS. But all factory calibrated data will be kept. After reset,
PT900 connection will be offline, please reconnect again. A warning message will pop up to remind the user. In
OFFLINE MODE, It would be unavailable.
The transmitter RTC time could be set up via DATE & TIME button. It will be synchronized to tablet time.
The APP language could be set up via LANGUAGE button. Totally 13 languages are supported.
o ENGLISH
o 中文
o Deutsch
o 日本語
o Italiano
o Français
o Nederlands
o 한국어
o Svenska
o Русский
o CASTELLANO
o Português
o ESPAÑ OL
3.9.1 How to configure transmitter SERVICE
There are four function blocks listed under service function.
3.9.2 How to Calibration transmitter
The CALIBRATION option allows the user to calibrate the analogue output and inputs.
Note, first of all, please make sure current a transmitter is connected. If work state is off-line, calibration would not be
accessed successfully.
Service
Calibration
Meter Setup
Testing
Error Limits
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Figure 56: TRANSMITTER Calibration
Analog output, click the CALIBRATION button, a pop up menu would display like figure 57 and 58. The
calibration procedure consists of calibrating the analog output zero point (4mA) (figure 57) and then
calibrating the full scale point (20mA) (figure 58). The edited value is the actual value derived from an
ammeter or digital voltmeter.
Figure 57: AO Zero calibration Figure 58: AO Span calibration
Click ADJUST button will transfer the value to the meter. Click CANCEL would discard the input.
Analog Input, click the CALIBRATION button, a pop up menu would display. There are two channels for
analog input, channel AI1 and channel AI2. The calibration procedure consists of calibrating the analog input
zero point (4mA) and then calibrating the full scale point (20mA). Calibrating the analog inputs requires use of
a current source. Like below map.
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PT900 User’s Manual 64
Figure 59: AI Calibration
Click ADJUST button will transfer the value to the meter. Click CANCEL would discard the input.
3.9.3 How to Setup Meter
The METER SETUP option enables the user to set parameters that affect the transducer signal of PT900. There are 8
parameters need to be configured.
TOTALIZER
RESPONSE TIME
POWER SAVING MODE
POWER SAVING TIME
PEAK DETECTION METHOD
PEAK THRESHOLDS
DELTA T OFFSET
ZERO CUTOFF
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Figure 60: Transmitter setup
The TOTALIZER option enables the customer to reset the value of different totalizer to 0. Please note, all 12
kinds of totalizer value from below list will be reset together if RESET button is clicked.
o Ch1 Forward Totalizer
o Ch1 Reverse Totalizer
o Ch1 Net Totalizer
o Ch1 Totalizer Time
o Ch2 Forward Totalizer
o Ch2 Reverse Totalizer
o Ch2 Net Totalizer
o Ch2 Totalizer Time
o Com Forward Totalizer
o Com Reverse Totalizer
o Com Net Totalizer
o Com Totalizer Time
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The RESPONSE option enables the user to configure the time interval between two measurements.
o If Custom is selected, there are 10 selections in the drop down list.
1s/2s/5s/10s/30s/60s/100s/200s/300s/500s
o If Fast is selected, the default time interval between two measurements is 1 second.
The POWER SAVING MODE switches the PT900 transmitter into a power saving measurement mode. If turn
on the power saving mode, MEASUREMENT TIME and SLEEP TIME need to be configured.
o MEASUREMENT TIME supports 5 selections, 5min/10min/20min/30min/60min.
o SLEEP TIME supports 8 selections, 30min/60min/90min/120min/150min/180min/210min/240min.
o If MEASUREMENT TIME is 5 min, and SLEEP TIME is 30 min, the PT900 transmitter would measure for 5
minutes and sleep for 30 minutes in alternation.
The PEAK DETECT option enables the user to check the method to identify the peak of the received signal.
The PT900 transmitter supports two different methods, PEAK method and THRESHOLD method.
o In the PEAK method, the peak is identified by testing a derivative of the signal. The peak method is
more reliable in identifying the signal in dynamic conditions.
o In the THRESHOLD method, the peak is identified as the point where the signal crosses a threshold
that is a percentage of the maximum signal detected. The threshold method is more reliable in
marginal signal conditions.
If THRESHOLD method is selected in PEAK DETECT, the THRESHOLD DETECT is also need to be configured.
There are two methods that THRESHOLD DETECT supports, Auto and Manual.
o In Auto method, threshold would be detected by transmitter automatically.
o In Manual method, minimum and maximum threshold percentage (available from 0 to 100) need to
be input. And peak percentage is also required.
The DELTA T OFFSET is the difference between the upstream and downstream transit time of the transducer.
And the delta-T offset value should normally be set to zero.
The ZERO CUTOFF enables the user to set the offset near “zero” flow. Near a zero flow rate, the PT900’s
readings may fluctuate due to small offsets caused by thermal drift or similar factors. To force a Zero display
reading, when there is minimal flow, enter a zero cut-off value is required.
Finally, don’t forget to click the SAVE button.
3.9.4 How to test meter
The TEST option enables the customer to ensure that the PT900 is performing properly. Two test methods are
supported:
o Watchdog Test
o Wave Snapshot.
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PT900 User’s Manual 67
Figure 61: Transmitter Testing
3.9.4.1 Testing the Watchdog Timer Circuit
The PT900 transmitter includes a watchdog timer circuit. If a software error causes the meter to stop responding,
this circuit automatically resets the transmitter. A properly functioning PT900 restarts if the customer runs the
Watchdog Test. A warning message will display like below figure.
Figure 62: Transmitter Watchdog Test warning
Note, the PT900 transmitter will be disconnected after reset, so please reconnect via blue-tooth again before further
use.
3.9.4.2 Testing with Capture WAVE SNAPSHOT
The CAPTURE option allows the user to capture received signals to a figure. From the figure 63, user could check the
trend of the signal variation. PT900 transmitter support two channels, so please select CH1 or CH2 firstly.
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PT900 User’s Manual 68
Figure 63: Transmitter Wave snapshot example
The SNAPSHOT captures 5 groups of raw signal, RAW UP, RAW DOWN, CORR UP, CORR DOWN and CROSS
CORRELATED. In addition, the figure could be zoom in and zoom out for detail.
3.9.5 How to Set ERROR LIMITS
The ERROR LIMITS option enables the user to set limits for an incoming signal. When the signal falls outside the
programmed limits, an error indication will appear in MEASUREMENT.
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Figure 64: Transmitter Error Limits Setup
First, low and high VELOCITY limits are required to be input. If measured velocity falls outside these limits, the
VELOCITY RANGE error message appears in measurement screen.
Second, low and high limits for the AMPLITUDE discriminator are required to be input. The amplitude
discriminator measures the size of the transducer signal sent from the PT900. If the signal falls outside these
limits, the AMPLITUDE ERROR message appears.
Third, the acceptable limits for the SOUND SPEED, which based on conditions in customer’s particular system,
are required. The SOUND SPEED ERROR message appears if the fluid sound speed exceeds that entered in
the FLUID option of the PROGRAM menu by more than this percentage. The default value is 20% of the
nominal sound speed.
Fourth, the ACCELERATION limit for detecting cycle skipping is required. The CYCLE SKIP ERROR message
appears if the velocity changes by more than this limit from one reading to the next.
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Fifth, the COMPRESSION RATIO limit for detecting the ratio of correlation peak value and secondary peak
value is required. The SIGNAL QUALITY ERROR message appears if the compression ratio beyond this limit.
Sixth, the SOUND SPEED VARIATION RATE limit for detecting the variation of sound speed is required. The
SOUND SPEED ERROR message appears if sound speed varies beyond this limit.
Each of upon items has a range limit, if the input value beyond the limitation, an error message will occur like
figure 65.
Figure 65: Error Limits range warning
o Click the icon on top menu, detail information would be displayed to help the user correct the
error input. Below is an example, click will exit the pop up message.
Figure 66: Error limits range warning example
Finally, please don’t forget to click SAVE button.
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3.10 HELP
HELP enables the customer to check the user manual and quick start guide. HELP could be selected via side menu.
Figure 67: PT900 APP Help main menu
3.10.1 About
About gives user a brief description about PT900 flow meter, the name, label, version and manufacture information.
By clicking the hyperlink www.gemeasurement.com, a website would be open and richer information would be
showed.
Figure 68: Help about information
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PT900 User’s Manual 72
3.10.2 Help Topics
User could find the interested information from below topics.
1. What type of tablet may I use with the PT900 Applications?
2. Where can I get the PT900 application?
3. To update to the latest version of the PT900 APP, do I need to update both my APP and PT900 firmware?
4. I cannot connect to the PT900 transmitter with my tablet. What am I doing wrong?
5. Can someone connect to the PT900 transmitter with Bluetooth without the PT900 APP and damage my
transmitter?
6. Can I work offline and save my settings before connecting to a transmitter?
7. How many PRESETs can the meter save?
8. Can I connect to more than one PT900 transmitter at a time with my APP?
9. How do I determine the material of my pipe?
10. How do I determine the SNSP of my pipe?
11. How do I determine the outer diameter of my pipe?
12. How do I determine the wall thickness of my pipe?
13. What is a pipe lining and how do I know if my pipe has a lining?
14. Do I need to turn on tracking windows? If yes, when do I turn on tracking windows?
15. If I do not know the fluid, what do I use for a sound speed?
16. How do I determine the Kinematic Viscosity of my fluid?
17. What is the difference between a wetted transducer and a clamp-on transducer?
18. What transducer should I use for my pipe?
19. How do I determine the type of transducer that I have?
20. What is wedge temperature and what temperature should I use?
21. What is Reynolds Correction Factor and should it be programmed on or off?
22. What is Calibration Factor and should it be programmed on or off?
23. What is traverse?
24. How many traverses should I use to install my transducers?
25. What is transducer spacing and how do I measure it?
26. What is signal level?
27. What is an acceptable value for signal level?
28. The meter is giving me a sound speed level. How do I know if the value is good or not?
29. What is the difference between a batch total and an inventory total?
30. What is Standard Volumetric?
31. What are the diagnostics and what do they mean?
32. Do the diagnostic values update if the meter is showing an error code?
33. What are the error codes, what is the cause? How do you fix them?
34. Can you adjust the range in the graph?
35. What is the energy switch for?
36. What is the energy channel AVE for?
37. How do I know if my system is a heating or cooling system?
38. Does it make a difference if I put the flow measurement on the supply or return side?
39. What is Enthalpy?
40. How do I know if I should be using a default or custom enthalpy value?
41. What is General Purpose for the analog inputs?
42. What is a user function?
43. What is a user table?
44. STOPPED AT TRANSMITTER (COULD NOT REVIEW WHILE OFFLINE)
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PT900 User’s Manual 73
Please contact sales representative for other topics.
3.10.3 Quick Start Guide
Quick Start Guide gives user a general instruction about how to use flow meter and APP.
Please watch the installation videos on website www.gemeasurement.com/PT900 firstly. And begin the operation in
below brief steps.
1. Check the PT900 transmitter and the tablet before use.
2. Load application onto tablet from either the SD card within PT900 flow meter or our website showed upon.
3. Turn on transmitter by holding down the power button for more than two seconds. The light of green power
LED indicates successfully power on.
4. Open the PT900 APP in Tablet.
5. Connect APP to the transmitter via Bluetooth communication.
6. Change to the desired unit option and program the meter with correct pipe, fluid, transducer and placement
information.
7. Install transducers onto the pipe with the spacing information got from APP.
8. Set display to desired values and view flow rate.
9. Continue with other operations, such as energy measurement or data log.
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PT900 User’s Manual 74
CHAPTER 4. ERROR CODES AND TROUBLESHOOTING
4.1 ERROR DISPLAY IN THE MEASUREMENT
In MEASURE interface, the top middle line of the APP displays top priority error message during operation. This line,
called the Error Line, includes two parts: Error Channel and Error String. The Error channel indicates the error occurs
in which channel, while the Error string gives a detailed description of the error information
4.1.1 Error Channel
Error Channel
Error Header
Channel 1
CH1
Channel 2
CH2
Meter
No specified channel
4.1.2 Flow Error String
Flow errors are errors in the course of making a flow measurement. These errors can be caused by disturbances in
the fluid, such as excessive particles in the flow stream or extreme temperature gradients. The errors could also be
caused by an empty pipe or other such issue with the fluid itself. Flow errors are typically not caused by a
malfunction of the flow measurement device, but by an issue with the fluid itself.
4.1.2.1 Low Signal
Problem: Poor ultrasonic signal strength or the signal exceeds the limit via the Program;
Cause: When SNR is less that the value of “Signal Low Limits” or the signal cannot be found when the flow is started,
the Low Signal error will occur. Poor signal strength may be caused by a defective cable, a flowcell problem,
a defective transducer or a problem in electronic console. A signal that exceeds the programmed limits is
probably caused by the entry of an improper value in the menu Transmitter Service Error Limits
Signal Low limits ;
Action: Check the components listed above (Refer to 4.2 Diagnostics). Also check the inputted value in the menu
Transmitter Service Error Limits
Signal Low limits;
4.1.2.2 Sound Speed Error
Problem: The sound speed exceeds the limits programmed in the menu Transmitter Service Error Limits
SOUND SPEED +- limits;
Cause: When the measured sound speed is out of the limit of sound speed, it will cause this error. The error may be
caused by incorrect programming, poor flow conditions and poor transducer orientation;
Action: Correct the programming errors. Refer to 4.2 Diagnostics, to correct the flowcell and/or transducer
problems. . Also check the inputted value in the menu Transmitter Service Error Limits
SOUND SPEED
+- limits;
4.1.2.3 Velocity Range
Problem: The velocity exceeds the limits programmed in the menu Transmitter Service Error Limits
Velocity
MIN/MAX LIMIT;
Cause: When the measured velocity is out of the limit of velocity, it will cause this error. The error may be caused by
improper programming data, poor flow conditions and/or excessive turbulence;
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PT900 User’s Manual 75
Action: Make sure the actual flow rate is within the programmed limits. Also, check the entered value in the menu
Transmitter Service Error Limits
Velocity MIN/MAX LIMIT. Refer to 4.2 Diagnostics, to correct the
flowcell and/or transducer problems.
4.1.2.4 Signal Quality
Problem: The signal quality is outside the limits programmed in the menu Transmitter Service Error Limits
Correlation Peak;
Cause: The peak of the upstream or downstream correlation signals has fallen below the correlation peak limit, as
set in the menu Program Advanced Error Limits
Correlation Peak. This may be caused by a flowcell or
electrical problem.
Action: Check for sources of electrical interference and verify the integrity of the electronics console by temporarily
substituting a test flowcell that is known to be good. Check the transducers and relocate them, if necessary.
See 4.2 Diagnostics, for instructions.
4.1.2.5 Amplitude Error
Problem: The signal amplitude exceeds the limits programmed in the menu Transmitter Service Error
Limits
Amp Disc Min/Max;
Cause: Solid or liquid particulates may be present in the flowcell. Poor coupling for the clamp-on transducers;
Action: Refer to 4.2 Diagnostics, to correct any flowcell problems;
4.1.2.6 Cycle Skip
Problem: The acceleration exceeds the limits programmed in the menu Transmitter Service Error
Limits
Acceleration;
Cause: This condition is usually caused by poor flow conditions or improper transducer alignment;
Action: Refer to 4.2 Diagnostics, to correct any flowcell and/or transducer problems
4.2 DIAGNOSTICS
4.2.1 Introduction
This section explains how to troubleshoot the PT900 if problems arise with the electronics enclosure, the flowcell, or
the transducers. Indications of a possible problem include:
Display of an error message on the tablet measure screen.
Erratic flow readings
Readings of doubtful accuracy (i.e., readings that are not consistent with readings from another flow measuring
device connected to the same process).
If any of the above conditions occurs, proceed with the instructions presented in this chapter.
4.2.2 Flowcell Problems
If preliminary troubleshooting with the Error Code indicates a possible flowcell problem, proceed with this section.
Flowcell problems fall into two categories: fluid problems or pipe problems. Read the following sections carefully to
determine if the problem is indeed related to the flowcell. If the instructions in this section fail to resolve the problem,
contact GE for assistance.
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PT900 User’s Manual 76
4.2.2.1 Fluid Problems
Most fluid-related problems result from a failure to observe the flow meter system installation instructions. Refer to
Chapter 2, Installation, to correct any installation problems.
If the physical installation of the system meets the recommended specifications, it is possible that the fluid itself may
be preventing accurate flow rate measurements. The fluid being measured must meet the following requirements:
1. The fluid must be homogeneous, single-phase, relatively clean and flowing steadily.
Although a low level of entrained particles may have little effect on the operation of the PT900, excessive
amounts of solid or gas particles will absorb or disperse the ultrasound signals. This interference with the
ultrasound transmissions through the fluid will cause inaccurate flow rate measurements. In addition,
temperature gradients in the fluid flow may result in erratic or inaccurate flow rate readings.
2. The fluid must not cavitate near the flowcell.
Fluids with a high vapor pressure may cavitate near or in the flowcell. This causes problems resulting from gas
bubbles in the fluid. Cavitation can usually be controlled through proper installation design.
3. The fluid must not excessively attenuate ultrasound signals.
Some fluids, particularly those that are very viscous, readily absorb ultrasound energy. In such a case, an error
code message will appear on the display screen to indicate that the ultrasonic signal strength is insufficient for
reliable measurements.
4. The fluid sound speed must not vary excessively.
The PT900 will tolerate relatively large changes in the fluid sound speed, as may be caused by variations in fluid
composition and/or temperature. However, such changes must occur slowly. Rapid fluctuations in the fluid
sound speed to a value that is considerably different from that programmed into the PT900, will result in erratic
or inaccurate flow rate readings. Refer to Chapter 3, Initial Setup and Programming” and make sure that the
appropriate sound speed is programmed into the meter.
4.2.2.2 Pipe Problems
Pipe-related problems may result either from a failure to observe the installation instructions, as described in
Chapter 2, or from improper programming of the meter. By far, the most common pipe problems are the following:
1. The collection of material at the transducer location(s).
Accumulated debris at the transducer location(s) will interfere with transmission of the ultrasound signals. As a
result, accurate flow rate measurements are not possible. Realignment of the flowcell or transducers often
cures such problems, and in some cases, transducers that protrude into the flow stream may be used. Refer to
Chapter 2, Installation, for more details on proper installation practices.
2. Inaccurate pipe measurements.
The accuracy of the flow rate measurements is no better than the accuracy of the programmed pipe
dimensions. For a flowcell supplied by GE, the correct data will be included in the documentation. For other
flowcells, measure the pipe wall thickness and diameter with the same accuracy desired in the flow rate
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PT900 User’s Manual 77
readings. Also, check the pipe for dents, eccentricity, weld deformity, straightness and other factors that may
cause inaccurate readings. Refer to Chapter 3, Initial Setup, for instructions on programming the pipe data.
In addition to the actual pipe dimensions, the path length (P) and the axial dimension (L), based on the actual
transducer mounting locations, must be accurately programmed into the flow meter. For a GE Sensing flowcell,
this data will be included with the documentation for the system. If the transducers are mounted onto an
existing pipe, these dimensions must be precisely measured.
3. The inside of the pipe or flowcell must be relatively clean.
Excessive buildup of scale, rust or debris will interfere with flow measurement. Generally, a thin coating or a
solid well-adhered build up on the pipe wall will not cause problems. Loose scale and thick coatings (such as tar
or oil) will interfere with ultrasound transmission and may result in incorrect or unreliable measurements.
4.2.3 Transducer Problems
Ultrasonic transducers are rugged, reliable devices. However, they are subject to physical damage from mishandling
and chemical attack. The following list of potential problems is grouped according to transducer type. Contact GE if
you cannot solve a transducer-related problem.
4.2.4 Bluetooth Connection Problems
The communication between transmitter and tablet is based on Bluetooth, which is a wireless protocol. So if the
distance between the transmitter and tablet is too big or they are blocked by some solid thing, such as a big wall, the
communication will be bad. In this case, some false negatives would occur. Please move your body to near the
transmitter first.
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CHAPTER 5. COMMUNICATION
5.1 MODBUS
5.1.1 Introduce
In general, the PT900 flow meter follows the standard Modbus communications protocol defined by the reference
MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1b. This specification is available at www.modbus.org on the
Internet. With this reference as a guide, an operator could use any Modbus master to communicate with the flow
meter.
Listed below are two limits of this implementation:
1. The PT900 supports only four of the standard function codes. These are Read Holding Registers (0x03), Read
Input Registers (0x04), Write Multiple Registers (0x10), and Read File Record (0x14).
2. The flow meter needs a 15 ms gap between Modbus requests. The prime objective of the flow meter is to
measure flow and drive the output, so the Modbus server has a low priority.
5.1.2 MODBUS Map
Register
(in Hex)
Register (in
Decimal)
Access
Level
Description
RO/RW
Format
100
100
256
User
Product Short Tag
RW
CHAR * 16
108
264
User
Product Long Tag
RW
CHAR * 32
118
280
User
eAI1Label
RW
CHAR * 16
120
288
User
eAI2Label
RW
CHAR * 16
128
296
User
eLogName
RW
CHAR * 16
130
304
User
Product Electronical serial number
RW
CHAR * 16
138
312
User
Product fixture serial number
RW
CHAR * 16
140
320
User
Product transducer1 serial number
RW
CHAR * 16
148
328
User
Product transducer2 serial number
RW
CHAR * 16
150
336
User
Product transducer3 serial number
RW
CHAR * 16
158
344
User
Product transducer4 serial number
RW
CHAR * 16
160
352
User
eUserFunc1Lable
RW
CHAR * 8
164
356
User
eUserFunc2Lable
RW
CHAR * 8
168
360
User
eUserFunc3Lable
RW
CHAR * 8
16C
364
User
eUserFunc4Lable
RW
CHAR * 8
170
368
User
eUserFunc5Lable
RW
CHAR * 8
174
372
User
eUserFunc1Unit
RW
CHAR * 8
178
376
User
eUserFunc2Unit
RW
CHAR * 8
17C
380
User
eUserFunc3Unit
RW
CHAR * 8
180
384
User
eUserFunc4Unit
RW
CHAR * 8
184
388
User
eUserFunc5Unit
RW
CHAR * 8
188
392
User
eTabALable
RW
CHAR * 8
18C
396
User
eTabBLable
RW
CHAR * 8
Contents
PT900 User’s Manual 79
190
400
User
eTabCLable
RW
CHAR * 8
194
404
User
eTabDLable
RW
CHAR * 8
198
408
User
eUserFunc1
RW
CHAR * 32
1A8
424
User
eUserFunc2
RW
CHAR * 32
1B8
440
User
eUserFunc3
RW
CHAR * 32
1C8
456
User
eUserFunc4
RW
CHAR * 32
1D8
472
User
eUserFunc5
RW
CHAR * 32
1E8
488
User
eCharRESV1
RW
CHAR * 8
1EC
492
User
eCharRESV2
RW
CHAR * 8
1F0
496
User
eCharRESV3
RW
CHAR * 8
1F4
500
User
eCharRESV4
RW
CHAR * 8
300
300
768
RO
Main Hardware version
RO
CHAR * 8
304
772
RO
Option Hardware version
RO
CHAR * 8
308
776
RO
Main Software version
RO
CHAR * 8
500
500
1280
User
Global Unit group 1 for Actual Volumetric
RW
INT32
502
1282
User
Global Unit group 2 for Day
RW
INT32
504
1284
User
Global Unit group 3 for dB
RW
INT32
506
1286
User
Global Unit group 4 for Density
RW
INT32
508
1288
User
Global Unit group 5 for Diamention
RW
INT32
50A
1290
User
Global Unit group 6 for Hz
RW
INT32
50C
1292
User
Global Unit group 7 for Viscosity
RW
INT32
50E
1294
User
Global Unit group 8 for mA
RW
INT32
510
1296
User
Global Unit group 9 for Mass
RW
INT32
512
1298
User
Global Unit group 10 for Milli Second
RW
INT32
514
1300
User
Global Unit group 11 for Nano Second
RW
INT32
516
1302
User
Global Unit group 12 for Percent
RW
INT32
518
1304
User
Global Unit group 13 for Second
RW
INT32
51A
1306
User
Global Unit group 14 for Standard Volumetric
RW
INT32
51C
1308
User
Global Unit group 15 for Therm
RW
INT32
51E
1310
User
Global Unit group 16 for Totalizer time
RW
INT32
520
1312
User
Global Unit group 17 for Totalizer
RW
INT32
522
1314
User
Global Unit group 18 for Unitless
RW
INT32
524
1316
User
Global Unit group 19 for Micro Second
RW
INT32
526
1318
User
Global Unit group 20 for Velocity
RW
INT32
528
1320
User
Global Unit group 21 for Accelaration
RW
INT32
52A
1322
User
Global Unit group 22 for Energy
RW
INT32
52C
1324
User
Global Unit group 22 for Energy
RW
INT32
52E
1326
User
Global Unit for reserve 1
RW
INT32
530
1328
User
Global Unit for reserve 2
RW
INT32
540
540
1344
Viewer
Batch request command
RW
INT32
542
1346
User
inventory request command
RW
INT32
544
1348
Viewer
system request password
RW
INT32
546
1350
Viewer
system request command
RW
INT32
548
1352
Viewer
system update command
RW
INT32
700
700
1792
RO
System Reported error
RO
INT32
702
1794
RO
System Error Bitmap
RO
INT32
704
1796
RO
System Startup error Bitmap
RO
INT32
706
1798
RO
System Flow Ch1 error Bitmap
RO
INT32
Contents
PT900 User’s Manual 80
708
1800
RO
System Flow Ch2 error Bitmap
RO
INT32
70A
1802
RO
System Device error Bitmap
RO
INT32
70C
1804
RO
System Warning Bitmap
RO
INT32
720
720
1824
RO
System Power Status
RO
INT32
722
1826
RO
battery status: charging, discharging
RO
INT32
724
1828
RO
remaining battery capacity (%)
RO
INT32
726
1830
RO
remaining battery life (minutes).
RO
INT32
728
1832
RO
remaining time until Battery reaches full charge
(minutes).
RO
INT32
72A
1834
RO
the cell-pack's internal temperature (°C)
RO
INT32
72C
1836
RO
the cell-pack voltage (mV)
RO
INT32
72E
1838
RO
the current being supplied
RO
INT32
730
1840
RO
eSystemRESV1
RO
INT32
732
1842
RO
eSystemRESV1
RO
INT32
734
1844
RO
eSystemRESV1
RO
INT32
C00
C00
3072
User
Analog Out Error Handling Value
RW
(IEEE 32 bit)
C02
3074
User
Analog Out Test Value (Percent of Span)
RW
(IEEE 32 bit)
C04
3076
User
Analog Out Zero Value
RW
(IEEE 32 bit)
C06
3078
User
Analog Out Span Value
RW
(IEEE 32 bit)
C08
3080
User
Analog Out Base Value
RW
(IEEE 32 bit)
C0A
3082
User
Analog Out Full Value
RW
(IEEE 32 bit)
C40
C40
3136
User
Digital Out 1 Pulse Value
RW
(IEEE 32 bit)
C42
3138
User
Digital Out 1 Frequency Base Value
RW
(IEEE 32 bit)
C44
3140
User
Digital Out 1 Frequency Full Value
RW
(IEEE 32 bit)
C46
3142
User
Digital Out 1 Alarm Value
RW
(IEEE 32 bit)
D00
D00
3328
User
Analog Out Mode
RW
INT32
D02
3330
User
Analog Out Type
RW
INT32
D04
3332
User
Digital Out 1 Mode
RW
INT32
D06
3334
User
Digital Out 1 Type
RW
INT32
D20
D20
3360
User
Analog Out Measurement Type
RW
INT32
D22
3362
User
Analog Out Error Handling
RW
INT32
D40
D40
3392
User
Digital Out 1 Pulse Measurement Type
RW
INT32
D42
3394
User
Digital Out 1 Pulse Test Value
RW
INT32
D44
3396
User
Digital Out 1 Pulse Error Handling
RW
INT32
D46
3398
User
Digital Out 1 Pulse Time
RW
INT32
D60
D60
3424
User
Digital Out 1 Frequency Measurement Type
RW
INT32
D62
3426
User
Digital Out 1 Test Frequency Value
RW
INT32
D64
3428
User
Digital Out 1 Frequency Error Handling
RW
INT32
D66
3430
User
Digital Out 1 Frequency Error Handling Value
RW
INT32
D68
3432
User
Digital Out 1 Frequency Full Frequency
RW
INT32
D80
D80
3456
User
Digital Out 1 Alarm Measurement Type
RW
INT32
D82
3458
User
Digital Out 1 Alarm Test Value
RW
INT32
D84
3460
User
Digital Out 1 Alarm State
RW
INT32
D86
3462
User
Digital Out 1 Alarm Type
RW
INT32
E00
E00
3584
RO
Analog Out Measurement Value
RO
(IEEE 32 bit)
E02
3586
RO
Digital Out 1 Pulse Measurement Value
RO
(IEEE 32 bit)
E04
3588
RO
Digital Out 1 Frequency Measurement Value
RO
(IEEE 32 bit)
E06
3590
RO
Digital Out 1 Alarm Measurement Value
RO
(IEEE 32 bit)
1000
1000
4096
User
eTabAX1
RW
(IEEE 32 bit)
Contents
PT900 User’s Manual 81
1002
4098
User
eTabAX2
RW
(IEEE 32 bit)
1004
4100
User
eTabAX3
RW
(IEEE 32 bit)
1006
4102
User
eTabAX4
RW
(IEEE 32 bit)
1008
4104
User
eTabAX5
RW
(IEEE 32 bit)
100A
4106
User
eTabAX6
RW
(IEEE 32 bit)
100C
4108
User
eTabAX7
RW
(IEEE 32 bit)
100E
4110
User
eTabAX8
RW
(IEEE 32 bit)
1010
4112
User
eTabAX9
RW
(IEEE 32 bit)
1012
4114
User
eTabAX10
RW
(IEEE 32 bit)
1020
1020
4128
User
eTabAY1
RW
(IEEE 32 bit)
1022
4130
User
eTabAY2
RW
(IEEE 32 bit)
1024
4132
User
eTabAY3
RW
(IEEE 32 bit)
1026
4134
User
eTabAY4
RW
(IEEE 32 bit)
1028
4136
User
eTabAY5
RW
(IEEE 32 bit)
102A
4138
User
eTabAY6
RW
(IEEE 32 bit)
102C
4140
User
eTabAY7
RW
(IEEE 32 bit)
102E
4142
User
eTabAY8
RW
(IEEE 32 bit)
1030
4144
User
eTabAY9
RW
(IEEE 32 bit)
1032
4146
User
eTabAY10
RW
(IEEE 32 bit)
1040
1040
4160
User
eTabBX1
RW
(IEEE 32 bit)
1042
4162
User
eTabBX2
RW
(IEEE 32 bit)
1044
4164
User
eTabBX3
RW
(IEEE 32 bit)
1046
4166
User
eTabBX4
RW
(IEEE 32 bit)
1048
4168
User
eTabBX5
RW
(IEEE 32 bit)
104A
4170
User
eTabBX6
RW
(IEEE 32 bit)
104C
4172
User
eTabBX7
RW
(IEEE 32 bit)
104E
4174
User
eTabBX8
RW
(IEEE 32 bit)
1050
4176
User
eTabBX9
RW
(IEEE 32 bit)
1052
4178
User
eTabBX10
RW
(IEEE 32 bit)
1060
1060
4192
User
eTabBY1
RW
(IEEE 32 bit)
1062
4194
User
eTabBY2
RW
(IEEE 32 bit)
1064
4196
User
eTabBY3
RW
(IEEE 32 bit)
1066
4198
User
eTabBY4
RW
(IEEE 32 bit)
1068
4200
User
eTabBY5
RW
(IEEE 32 bit)
106A
4202
User
eTabBY6
RW
(IEEE 32 bit)
106C
4204
User
eTabBY7
RW
(IEEE 32 bit)
106E
4206
User
eTabBY8
RW
(IEEE 32 bit)
1070
4208
User
eTabBY9
RW
(IEEE 32 bit)
1072
4210
User
eTabBY10
RW
(IEEE 32 bit)
1080
1080
4224
User
eTabCX1
RW
(IEEE 32 bit)
1082
4226
User
eTabCX2
RW
(IEEE 32 bit)
1084
4228
User
eTabCX3
RW
(IEEE 32 bit)
1086
4230
User
eTabCX4
RW
(IEEE 32 bit)
1088
4232
User
eTabCX5
RW
(IEEE 32 bit)
108A
4234
User
eTabCX6
RW
(IEEE 32 bit)
108C
4236
User
eTabCX7
RW
(IEEE 32 bit)
108E
4238
User
eTabCX8
RW
(IEEE 32 bit)
1090
4240
User
eTabCX9
RW
(IEEE 32 bit)
Contents
PT900 User’s Manual 82
1092
4242
User
eTabCX10
RW
(IEEE 32 bit)
10A0
10A0
4256
User
eTabCY1
RW
(IEEE 32 bit)
10A2
4258
User
eTabCY2
RW
(IEEE 32 bit)
10A4
4260
User
eTabCY3
RW
(IEEE 32 bit)
10A6
4262
User
eTabCY4
RW
(IEEE 32 bit)
10A8
4264
User
eTabCY5
RW
(IEEE 32 bit)
10AA
4266
User
eTabCY6
RW
(IEEE 32 bit)
10AC
4268
User
eTabCY7
RW
(IEEE 32 bit)
10AE
4270
User
eTabCY8
RW
(IEEE 32 bit)
10B0
4272
User
eTabCY9
RW
(IEEE 32 bit)
10B2
4274
User
eTabCY10
RW
(IEEE 32 bit)
10C0
10C0
4288
User
eTabDX1
RW
(IEEE 32 bit)
10C2
4290
User
eTabDX2
RW
(IEEE 32 bit)
10C4
4292
User
eTabDX3
RW
(IEEE 32 bit)
10C6
4294
User
eTabDX4
RW
(IEEE 32 bit)
10C8
4296
User
eTabDX5
RW
(IEEE 32 bit)
10CA
4298
User
eTabDX6
RW
(IEEE 32 bit)
10CC
4300
User
eTabDX7
RW
(IEEE 32 bit)
10CE
4302
User
eTabDX8
RW
(IEEE 32 bit)
10D0
4304
User
eTabDX9
RW
(IEEE 32 bit)
10D2
4306
User
eTabDX10
RW
(IEEE 32 bit)
10E0
10E0
4320
User
eTabDY1
RW
(IEEE 32 bit)
10E2
4322
User
eTabDY2
RW
(IEEE 32 bit)
10E4
4324
User
eTabDY3
RW
(IEEE 32 bit)
10E6
4326
User
eTabDY4
RW
(IEEE 32 bit)
10E8
4328
User
eTabDY5
RW
(IEEE 32 bit)
10EA
4330
User
eTabDY6
RW
(IEEE 32 bit)
10EC
4332
User
eTabDY7
RW
(IEEE 32 bit)
10EE
4334
User
eTabDY8
RW
(IEEE 32 bit)
10F0
4336
User
eTabDY9
RW
(IEEE 32 bit)
10F2
4338
User
eTabDY10
RW
(IEEE 32 bit)
1100
1100
4352
User
eUserFunc1Decimal
RW
INT32
1102
4354
User
eUserFunc2Decimal
RW
INT32
1104
4356
User
eUserFunc3Decimal
RW
INT32
1106
4358
User
eUserFunc4Decimal
RW
INT32
1108
4360
User
eUserFunc5Decimal
RW
INT32
110A
4362
User
eTabAPoint
RW
INT32
110C
4364
User
eTabBPoint
RW
INT32
110E
4366
User
eTabCPoint
RW
INT32
1110
4368
User
eTabDPoint
RW
INT32
1112
4370
User
eCurrUserFunc
RW
INT32
1114
4372
User
eCurrTable
RW
INT32
1116
4374
User
eUserFuncValid
RW
INT32
1200
1200
4608
RO
eUserFunc1
RO
(IEEE 32 bit)
1202
4610
RO
eUserFunc2
RO
(IEEE 32 bit)
1204
4612
RO
eUserFunc3
RO
(IEEE 32 bit)
1206
4614
RO
eUserFunc4
RO
(IEEE 32 bit)
1208
4616
RO
eUserFunc5
RO
(IEEE 32 bit)
Contents
PT900 User’s Manual 83
1300
1300
4864
RO
eUserFuncValid
RO
INT32
1500
1500
5376
User
PC MODBUS baud rate
RW
INT32
1502
5378
User
PC MODBUS parity
RW
INT32
1504
5380
User
PC MODBUS stop bits
RW
INT32
1506
5382
User
PC MODBUS meter addr
RW
INT32
1540
1540
5440
Viewer
Log control / status
RW
INT32
1542
5442
Viewer
Log interval
RW
INT32
1544
5444
Viewer
Logging time
RW
INT32
1546
5446
Viewer
Number of variables to log
RW
INT32
1548
5448
Viewer
eLogChannel
RW
INT32
154A
5450
Viewer
eLogFormat
RW
INT32
154C
5452
Viewer
eLogStartDate
RW
INT32
154E
5454
Viewer
eLogEndtDate
RW
INT32
1550
5456
Viewer
eLogStartTime
RW
INT32
1552
5458
Viewer
eLogEndtTime
RW
INT32
1580
1580
5504
Viewer
variable address array
RW
INT32
15C0
15C0
5568
Viewer
Variable unit code array
RW
INT32
1740
1740
5952
RO
Number of records
RO
INT32
2000
2000
8192
User
channel 1 composite factor
RW
(IEEE 32 bit)
2002
8194
User
channel 2 composite factor
RW
(IEEE 32 bit)
20C0
20C0
8384
User
Correlation peak low limit
RW
(IEEE 32 bit)
20C2
8386
User
Acceleration Limit
RW
(IEEE 32 bit)
20C4
8388
User
Velocity Low limit - Used for Volumetric low limit
calculation
RW
(IEEE 32 bit)
20C6
User
Velocity High limit - Used for Volumetric High limit
calculation
RW
(IEEE 32 bit)
20C8
8392
User
Amplitude discriminator min limit
RW
(IEEE 32 bit)
20CA
8394
User
Amplitude discriminator max limit
RW
(IEEE 32 bit)
20CC
8396
User
Soundspeed Plus minus limit
RW
(IEEE 32 bit)
20CE
8398
User
signal low limit
RW
(IEEE 32 bit)
20D0
8400
User
ePcr
RW
(IEEE 32 bit)
20D2
8402
User
eSOSVariationRate
RW
(IEEE 32 bit)
20D4
8404
Viewer
ePercentGain
RW
(IEEE 32 bit)
20D6
8406
User
the maximum threshold
RW
(IEEE 32 bit)
20D8
8408
User
the minimum threshold
RW
(IEEE 32 bit)
20E0
20E0
8416
User
Zero Cutoff
RW
(IEEE 32 bit)
20E2
8418
User
DeltaT Offset
RW
(IEEE 32 bit)
20E4
8420
User
the inputted threshold under manual mode
RW
(IEEE 32 bit)
2100
2100
8448
User
Enable Ch1
RW
INT32
2102
8450
User
Enable Ch2
RW
INT32
2104
8452
Viewer
eImpulseResponse
RW
INT32
2106
8454
Viewer
eImpulseRespCmd
RW
INT32
2108
8456
User
define how to find the peak of the correlation signal
RW
INT32
210A
8458
User
define how to search the threshold
RW
INT32
21C0
21C0
8640
User
Response Time
RW
INT32
21C2
8642
User
Response
RW
INT32
21C4
8644
User
Response
RW
INT32
2200
2200
8704
RO
Velocity
RO
(IEEE 32 bit)
2202
8706
RO
Volumetric
RO
(IEEE 32 bit)
2204
8708
RO
Standard Volumetric
RO
(IEEE 32 bit)
Contents
PT900 User’s Manual 84
2206
8710
RO
Mass Flow
RO
(IEEE 32 bit)
2208
8712
RO
TransitTime
RO
(IEEE 32 bit)
2240
2240
8768
RO
Batch fwd totals
RO
(IEEE 32 bit)
2242
8770
RO
Batch rev totals
RO
(IEEE 32 bit)
2244
8772
RO
Batch net totals
RO
(IEEE 32 bit)
2246
8774
RO
Batch totals time
RO
(IEEE 32 bit)
2248
8776
RO
inventory fwd totals
RO
(IEEE 32 bit)
224A
8778
RO
inventory rev totals
RO
(IEEE 32 bit)
224C
8780
RO
inventory net totals
RO
(IEEE 32 bit)
224E
8782
RO
inventory totals time
RO
(IEEE 32 bit)
2400
2400
9216
User
Pipe Inner Diameter
RW
(IEEE 32 bit)
2402
9218
User
Pipe Outer Diameter
RW
(IEEE 32 bit)
2404
9220
User
Pipe Wall Thickness
RW
(IEEE 32 bit)
2406
9222
User
Pipe Soundspeed
RW
(IEEE 32 bit)
2408
9224
User
Lining Thickness
RW
(IEEE 32 bit)
240A
9226
User
Lining Soundspeed
RW
(IEEE 32 bit)
240C
9228
User
XDR wedge angle
RW
(IEEE 32 bit)
240E
9230
User
XDR wedge time
RW
(IEEE 32 bit)
2410
9232
User
Wedge Sound speed
RW
(IEEE 32 bit)
2412
9234
User
Fluid Sound speed
RW
(IEEE 32 bit)
2414
9236
User
Fluid Sound speed Min
RW
(IEEE 32 bit)
2416
9238
User
Fluid Sound speed Max
RW
(IEEE 32 bit)
2418
9240
User
Fluid Static Density
RW
(IEEE 32 bit)
241A
9242
User
Fluid Reference Density
RW
(IEEE 32 bit)
241C
9244
User
Fluid Temperature
RW
(IEEE 32 bit)
241E
9246
User
XDR space
RW
(IEEE 32 bit)
2420
9248
User
Calibration Factor
RW
(IEEE 32 bit)
2422
9250
User
Kinematic Viscosity
RW
(IEEE 32 bit)
2424
9252
User
XDR Temperature
RW
(IEEE 32 bit)
2426
9254
User
eCh1Goycol
RW
(IEEE 32 bit)
2440
2440
9280
User
MultiK Velocity 1
RW
(IEEE 32 bit)
2442
9282
User
MultiK Velocity 2
RW
(IEEE 32 bit)
2444
9284
User
MultiK Velocity 3
RW
(IEEE 32 bit)
2446
9286
User
MultiK Velocity 4
RW
(IEEE 32 bit)
2448
9288
User
MultiK Velocity 5
RW
(IEEE 32 bit)
244A
9290
User
MultiK Velocity 6
RW
(IEEE 32 bit)
2460
2460
9312
User
MultiK Velocity KFactor1
RW
(IEEE 32 bit)
2462
9314
User
MultiK Velocity KFactor2
RW
(IEEE 32 bit)
2464
9316
User
MultiK Velocity KFactor3
RW
(IEEE 32 bit)
2466
9318
User
MultiK Velocity KFactor4
RW
(IEEE 32 bit)
2468
9320
User
MultiK Velocity KFactor5
RW
(IEEE 32 bit)
246A
9322
User
MultiK Velocity KFactor6
RW
(IEEE 32 bit)
2480
2480
9344
User
MultiK Reynolds 1
RW
(IEEE 32 bit)
2482
9346
User
MultiK Reynolds 2
RW
(IEEE 32 bit)
2484
9348
User
MultiK Reynolds 3
RW
(IEEE 32 bit)
2486
9350
User
MultiK Reynolds 4
RW
(IEEE 32 bit)
2488
9352
User
MultiK Reynolds 5
RW
(IEEE 32 bit)
248A
9354
User
MultiK Reynolds 6
RW
(IEEE 32 bit)
Contents
PT900 User’s Manual 85
24A0
24A0
9376
User
MultiK Reynolds KFactor1
RW
(IEEE 32 bit)
24A2
9378
User
MultiK Reynolds KFactor2
RW
(IEEE 32 bit)
24A4
9380
User
MultiK Reynolds KFactor3
RW
(IEEE 32 bit)
24A6
9382
User
MultiK Reynolds KFactor4
RW
(IEEE 32 bit)
24A8
9384
User
MultiK Reynolds KFactor5
RW
(IEEE 32 bit)
24AA
9386
User
MultiK Reynolds KFactor6
RW
(IEEE 32 bit)
24C0
24C0
9408
User
eCh1DensityX1
RW
(IEEE 32 bit)
24C2
9410
User
eCh1DensityX2
RW
(IEEE 32 bit)
24C4
9412
User
eCh1DensityX3
RW
(IEEE 32 bit)
24C6
9414
User
eCh1DensityX4
RW
(IEEE 32 bit)
24C8
9416
User
eCh1DensityX5
RW
(IEEE 32 bit)
24CA
9418
User
eCh1DensityX6
RW
(IEEE 32 bit)
24CC
9420
User
eCh1DensityX7
RW
(IEEE 32 bit)
24CE
9422
User
eCh1DensityX8
RW
(IEEE 32 bit)
24D0
9424
User
eCh1DensityX9
RW
(IEEE 32 bit)
24D2
9426
User
eCh1DensityX10
RW
(IEEE 32 bit)
24E0
24E0
9440
User
eCh1DensityFactor1
RW
(IEEE 32 bit)
24E2
9442
User
eCh1DensityFactor2
RW
(IEEE 32 bit)
24E4
9444
User
eCh1DensityFactor3
RW
(IEEE 32 bit)
24E6
9446
User
eCh1DensityFactor4
RW
(IEEE 32 bit)
24E8
9448
User
eCh1DensityFactor5
RW
(IEEE 32 bit)
24EA
9450
User
eCh1DensityFactor6
RW
(IEEE 32 bit)
24EC
9452
User
eCh1DensityFactor7
RW
(IEEE 32 bit)
24EE
9454
User
eCh1DensityFactor8
RW
(IEEE 32 bit)
24F0
9456
User
eCh1DensityFactor9
RW
(IEEE 32 bit)
24F2
9458
User
eCh1DensityFactor10
RW
(IEEE 32 bit)
2500
2500
9472
User
Pipe Material
RW
INT32
2502
9474
User
Lining Material
RW
INT32
2504
9476
User
XDR Type
RW
INT32
2506
9478
User
XDR frequency
RW
INT32
2508
9480
User
XDR wedge type
RW
INT32
250A
9482
User
Fluid Type
RW
INT32
250C
9484
User
Lining existence
RW
INT32
250E
9486
User
Traverse number
RW
INT32
2510
9488
User
Couplant type
RW
INT32
2540
2540
9536
User
Enable Reynolds Correction
RW
INT32
2542
9538
User
Enable Active MultiK
RW
INT32
2544
9540
User
MultiK Type
RW
INT32
2546
9542
User
MultiK Pairs
RW
INT32
2548
9544
User
eCh1Density
RW
INT32
254A
9546
User
eCh1DensityPairs
RW
INT32
2580
2580
9600
User
Peak%
RW
INT32
2582
9602
User
Min Peak%
RW
INT32
2584
9604
User
Max Peak%
RW
INT32
2586
9606
User
Enable Tracking Windows
RW
INT32
2600
2600
9728
RO
Velocity
RO
(IEEE 32 bit)
2602
9730
RO
Volumetric
RO
(IEEE 32 bit)
2604
9732
RO
Standard Volumetric
RO
(IEEE 32 bit)
Contents
PT900 User’s Manual 86
2606
9734
RO
Mass Flow
RO
(IEEE 32 bit)
2640
2640
9792
RO
Batch fwd totals
RO
(IEEE 32 bit)
2642
9794
RO
Batch rev totals
RO
(IEEE 32 bit)
2644
9796
RO
Batch net totals
RO
(IEEE 32 bit)
2646
9798
RO
Batch totals time
RO
(IEEE 32 bit)
2648
9800
RO
inventory fwd totals
RO
(IEEE 32 bit)
264A
9802
RO
inventory rev totals
RO
(IEEE 32 bit)
264C
9804
RO
inventory net totals
RO
(IEEE 32 bit)
264E
9806
RO
inventory totals time
RO
(IEEE 32 bit)
2680
2680
9856
RO
Transit Time Up
RO
(IEEE 32 bit)
2682
9858
RO
Transit Time Dn
RO
(IEEE 32 bit)
2684
9860
RO
DeltaT
RO
(IEEE 32 bit)
2686
9862
RO
Up Signal Quality
RO
(IEEE 32 bit)
2688
9864
RO
Dn Signal Quality
RO
(IEEE 32 bit)
268A
9866
RO
Up Amp Disc
RO
(IEEE 32 bit)
268C
9868
RO
Dn Amp Disc
RO
(IEEE 32 bit)
268E
9870
RO
SNR on UP channel
RO
(IEEE 32 bit)
2690
9872
RO
SNR on DOWN channel
RO
(IEEE 32 bit)
2692
9874
RO
Time in buffer on Up channel
RO
(IEEE 32 bit)
2694
9876
RO
Time in buffer on Dn channel
RO
(IEEE 32 bit)
2696
9878
RO
Signal Gain Up
RO
(IEEE 32 bit)
2698
9880
RO
Signal Gain Down
RO
(IEEE 32 bit)
269A
9882
RO
Partial Corrolatoin Ratio Up
RO
(IEEE 32 bit)
269C
9884
RO
Partial Corrolatoin Ratio Dn
RO
(IEEE 32 bit)
26C0
26C0
9920
RO
Sound Speed
RO
(IEEE 32 bit)
26C2
9922
RO
Current Reynolds Number
RO
(IEEE 32 bit)
26C4
9924
RO
Current Correction Factor
RO
(IEEE 32 bit)
26C6
9926
RO
Path Length P
RO
(IEEE 32 bit)
26C8
9928
RO
Axial Length L
RO
(IEEE 32 bit)
2700
2700
9984
RO
Up +- Peak
RO
INT32
2702
9986
RO
Dn +- Peak
RO
INT32
2704
9988
RO
dynamic threshold on UP channel
RO
INT32
2706
9990
RO
dynamic threshold on DOWN channel
RO
INT32
2800
2800
10240
User
Pipe Inner Diameter
RW
(IEEE 32 bit)
2802
10242
User
Pipe Outer Diameter
RW
(IEEE 32 bit)
2804
10244
User
Pipe Wall Thickness
RW
(IEEE 32 bit)
2806
10246
User
Pipe Soundspeed
RW
(IEEE 32 bit)
2808
10248
User
Lining Thickness
RW
(IEEE 32 bit)
280A
10250
User
Lining Soundspeed
RW
(IEEE 32 bit)
280C
10252
User
XDR wedge angle
RW
(IEEE 32 bit)
280E
10254
User
XDR wedge time
RW
(IEEE 32 bit)
2810
10256
User
Wedge Sound speed
RW
(IEEE 32 bit)
2812
10258
User
Fluid Sound speed
RW
(IEEE 32 bit)
2814
10260
User
Fluid Sound speed Min
RW
(IEEE 32 bit)
2816
10262
User
Fluid Sound speed Max
RW
(IEEE 32 bit)
2818
10264
User
Fluid Static Density
RW
(IEEE 32 bit)
281A
10266
User
Fluid Reference Density
RW
(IEEE 32 bit)
281C
10268
User
Fluid Temperature
RW
(IEEE 32 bit)
Contents
PT900 User’s Manual 87
281E
10270
User
XDR space
RW
(IEEE 32 bit)
2820
10272
User
Calibration Factor
RW
(IEEE 32 bit)
2822
10274
User
Kinematic Viscosity
RW
(IEEE 32 bit)
2824
10276
User
XDR Temperature
RW
(IEEE 32 bit)
2826
10278
User
eCh2Goycol
RW
(IEEE 32 bit)
2840
2840
10304
User
MultiK Velocity 1
RW
(IEEE 32 bit)
2842
10306
User
MultiK Velocity 2
RW
(IEEE 32 bit)
2844
10308
User
MultiK Velocity 3
RW
(IEEE 32 bit)
2846
10310
User
MultiK Velocity 4
RW
(IEEE 32 bit)
2848
10312
User
MultiK Velocity 5
RW
(IEEE 32 bit)
284A
10314
User
MultiK Velocity 6
RW
(IEEE 32 bit)
2860
2860
10336
User
MultiK Velocity KFactor1
RW
(IEEE 32 bit)
2862
10338
User
MultiK Velocity KFactor2
RW
(IEEE 32 bit)
2864
10340
User
MultiK Velocity KFactor3
RW
(IEEE 32 bit)
2866
10342
User
MultiK Velocity KFactor4
RW
(IEEE 32 bit)
2868
10344
User
MultiK Velocity KFactor5
RW
(IEEE 32 bit)
286A
10346
User
MultiK Velocity KFactor6
RW
(IEEE 32 bit)
2880
2880
10368
User
MultiK Reynolds 1
RW
(IEEE 32 bit)
2882
10370
User
MultiK Reynolds 2
RW
(IEEE 32 bit)
2884
10372
User
MultiK Reynolds 3
RW
(IEEE 32 bit)
2886
10374
User
MultiK Reynolds 4
RW
(IEEE 32 bit)
2888
10376
User
MultiK Reynolds 5
RW
(IEEE 32 bit)
288A
10378
User
MultiK Reynolds 6
RW
(IEEE 32 bit)
28A0
28A0
10400
User
MultiK Reynolds KFactor1
RW
(IEEE 32 bit)
28A2
10402
User
MultiK Reynolds KFactor2
RW
(IEEE 32 bit)
28A4
10404
User
MultiK Reynolds KFactor3
RW
(IEEE 32 bit)
28A6
10406
User
MultiK Reynolds KFactor4
RW
(IEEE 32 bit)
28A8
10408
User
MultiK Reynolds KFactor5
RW
(IEEE 32 bit)
28AA
10410
User
MultiK Reynolds KFactor6
RW
(IEEE 32 bit)
28C0
28C0
10432
User
eCh2DensityX1
RW
(IEEE 32 bit)
28C2
10434
User
eCh2DensityX2
RW
(IEEE 32 bit)
28C4
10436
User
eCh2DensityX3
RW
(IEEE 32 bit)
28C6
10438
User
eCh2DensityX4
RW
(IEEE 32 bit)
28C8
10440
User
eCh2DensityX5
RW
(IEEE 32 bit)
28CA
10442
User
eCh2DensityX6
RW
(IEEE 32 bit)
28CC
10444
User
eCh2DensityX7
RW
(IEEE 32 bit)
28CE
10446
User
eCh2DensityX8
RW
(IEEE 32 bit)
28D0
10448
User
eCh2DensityX9
RW
(IEEE 32 bit)
28D2
10450
User
eCh2DensityX10
RW
(IEEE 32 bit)
28E0
28E0
10464
User
eCh2DensityFactor1
RW
(IEEE 32 bit)
28E2
10466
User
eCh2DensityFactor2
RW
(IEEE 32 bit)
28E4
10468
User
eCh2DensityFactor3
RW
(IEEE 32 bit)
28E6
10470
User
eCh2DensityFactor4
RW
(IEEE 32 bit)
28E8
10472
User
eCh2DensityFactor5
RW
(IEEE 32 bit)
28EA
10474
User
eCh2DensityFactor6
RW
(IEEE 32 bit)
28EC
10476
User
eCh2DensityFactor7
RW
(IEEE 32 bit)
28EE
10478
User
eCh2DensityFactor8
RW
(IEEE 32 bit)
28F0
10480
User
eCh2DensityFactor9
RW
(IEEE 32 bit)
Contents
PT900 User’s Manual 88
28F2
10482
User
eCh2DensityFactor10
RW
(IEEE 32 bit)
2900
2900
10496
User
Pipe Material
RW
INT32
2902
10498
User
Lining Material
RW
INT32
2904
10500
User
XDR Type
RW
INT32
2906
10502
User
XDR frequency
RW
INT32
2908
10504
User
XDR wedge type
RW
INT32
290A
10506
User
Fluid Type
RW
INT32
290C
10508
User
Lining existence
RW
INT32
290E
10510
User
Traverse number
RW
INT32
2910
10512
User
Couplant type
RW
INT32
2940
2940
10560
User
Enable Reynolds Correction
RW
INT32
2942
10562
User
Enable Active MultiK
RW
INT32
2944
10564
User
MultiK Type
RW
INT32
2946
10566
User
MultiK Pairs
RW
INT32
2948
10568
User
eCh2Density
RW
INT32
294A
10570
User
eCh2DensityPairs
RW
INT32
2980
2980
10624
User
Peak%
RW
INT32
2982
10626
User
Min Peak%
RW
INT32
2984
10628
User
Max Peak%
RW
INT32
2986
10630
User
Enable Tracking Windows
RW
INT32
2A00
2A00
10752
RO
Velocity
RO
(IEEE 32 bit)
2A02
10754
RO
Volumetric
RO
(IEEE 32 bit)
2A04
10756
RO
Standard Volumetric
RO
(IEEE 32 bit)
2A06
10758
RO
Mass Flow
RO
(IEEE 32 bit)
2A40
2A40
10816
RO
Batch fwd totals
RO
(IEEE 32 bit)
2A42
10818
RO
Batch rev totals
RO
(IEEE 32 bit)
2A44
10820
RO
Batch net totals
RO
(IEEE 32 bit)
2A46
10822
RO
Batch totals time
RO
(IEEE 32 bit)
2A48
10824
RO
inventory fwd totals
RO
(IEEE 32 bit)
2A4A
10826
RO
inventory rev totals
RO
(IEEE 32 bit)
2A4C
10828
RO
inventory net totals
RO
(IEEE 32 bit)
2A4E
10830
RO
inventory totals time
RO
(IEEE 32 bit)
2A80
2A80
10880
RO
Transit Time Up
RO
(IEEE 32 bit)
2A82
10882
RO
Transit Time Dn
RO
(IEEE 32 bit)
2A84
10884
RO
DeltaT
RO
(IEEE 32 bit)
2A86
10886
RO
Up Signal Quality
RO
(IEEE 32 bit)
2A88
10888
RO
Dn Signal Quality
RO
(IEEE 32 bit)
2A8A
10890
RO
Up Amp Disc
RO
(IEEE 32 bit)
2A8C
10892
RO
Dn Amp Disc
RO
(IEEE 32 bit)
2A8E
10894
RO
SNR on UP channel
RO
(IEEE 32 bit)
2A90
10896
RO
SNR on DOWN channel
RO
(IEEE 32 bit)
2A92
10898
RO
Time in buffer on Up channel
RO
(IEEE 32 bit)
2A94
10900
RO
Time in buffer on Dn channel
RO
(IEEE 32 bit)
2A96
10902
RO
Signal Gain Up
RO
(IEEE 32 bit)
2A98
10904
RO
Signal Gain Down
RO
(IEEE 32 bit)
2A9A
10906
RO
Partial Corrolatoin Ratio Up
RO
(IEEE 32 bit)
2A9C
10908
RO
Partial Corrolatoin Ratio Dn
RO
(IEEE 32 bit)
2AC0
2AC0
10944
RO
Sound Speed
RO
(IEEE 32 bit)
Contents
PT900 User’s Manual 89
2AC2
10946
RO
Current Reynolds Number
RO
(IEEE 32 bit)
2AC4
10948
RO
Current Correction Factor
RO
(IEEE 32 bit)
2AC6
10950
RO
Path Length P
RO
(IEEE 32 bit)
2AC8
10952
RO
Axial Length L
RO
(IEEE 32 bit)
2B00
2B00
11008
RO
Up +- Peak
RO
INT32
2B02
11010
RO
Dn +- Peak
RO
INT32
2B04
11012
RO
dynamic threshold on UP channel
RO
INT32
2B06
11014
RO
dynamic threshold on DOWN channel
RO
INT32
3000
3000
12288
User
eSupplyTempLow
RW
(IEEE 32 bit)
3002
12290
User
eEnergyRRWRESV1
RW
(IEEE 32 bit)
3004
12292
User
eReturnTempLow
RW
(IEEE 32 bit)
3006
12294
User
eEnergyRRWRESV2
RW
(IEEE 32 bit)
3008
12296
User
Analog Input 1 Base Value
RW
(IEEE 32 bit)
300A
12298
User
Analog Input 1 Full Value
RW
(IEEE 32 bit)
300C
12300
User
Analog Input 2 Base Value
RW
(IEEE 32 bit)
300E
12302
User
Analog Input 2 Full Value
RW
(IEEE 32 bit)
3010
12304
User
Analog Input 1 Zero Cali Value
RW
(IEEE 32 bit)
3012
12306
User
Analog Input 1 Span Cali Value
RW
(IEEE 32 bit)
3014
12308
User
Analog Input 2 Zero Cali Value
RW
(IEEE 32 bit)
3016
12310
User
Analog Input 2 Span Cali Value
RW
(IEEE 32 bit)
30C0
30C0
12480
User
eEnergyX1
RW
(IEEE 32 bit)
30C2
12482
User
eEnergyX2
RW
(IEEE 32 bit)
30C4
12484
User
eEnergyX3
RW
(IEEE 32 bit)
30C6
12486
User
eEnergyX4
RW
(IEEE 32 bit)
30C8
12488
User
eEnergyX5
RW
(IEEE 32 bit)
30CA
12490
User
eEnergyX6
RW
(IEEE 32 bit)
30CC
12492
User
eEnergyX7
RW
(IEEE 32 bit)
30CE
12494
User
eEnergyX8
RW
(IEEE 32 bit)
30D0
12496
User
eEnergyX9
RW
(IEEE 32 bit)
30D2
12498
User
eEnergyX10
RW
(IEEE 32 bit)
30E0
30E0
12512
User
eEnergyFactor1
RW
(IEEE 32 bit)
30E2
12514
User
eEnergyFactor2
RW
(IEEE 32 bit)
30E4
12516
User
eEnergyFactor3
RW
(IEEE 32 bit)
30E6
12518
User
eEnergyFactor4
RW
(IEEE 32 bit)
30E8
12520
User
eEnergyFactor5
RW
(IEEE 32 bit)
30EA
12522
User
eEnergyFactor6
RW
(IEEE 32 bit)
30EC
12524
User
eEnergyFactor7
RW
(IEEE 32 bit)
30EE
12526
User
eEnergyFactor8
RW
(IEEE 32 bit)
30F0
12528
User
eEnergyFactor9
RW
(IEEE 32 bit)
30F2
12530
User
eEnergyFactor10
RW
(IEEE 32 bit)
3100
3100
12544
User
eEnergyEnable
RW
INT32
3102
12546
User
eEnergySystem
RW
INT32
3104
12548
User
eFlowMeasure
RW
INT32
3106
12550
User
eEnthalpyCalc
RW
INT32
3108
12552
User
eSupplyTemp
RW
INT32
310A
12554
User
eReturnTemp
RW
INT32
310C
12556
User
eEnergyIRWRSEV1
RW
INT32
310E
12558
User
eAI1Function
RW
INT32
Contents
PT900 User’s Manual 90
3110
12560
User
eEnergyIRWRSEV2
RW
INT32
3112
12562
User
eAI1Function
RW
INT32
3114
12564
User
eEnergyChannel
RW
INT32
3116
12566
User
eEnergyPoint
RW
INT32
3118
12568
User
eAI1KPairs
RW
INT32
311A
12570
User
eAI1KPairs
RW
INT32
311C
12572
User
eExtPwrEnable
RW
INT32
311E
12574
User
enable power saving mode(long battery mode)
RW
INT32
3120
12576
User
Measurement Time during power saving mode
RW
INT32
3122
12578
User
Sleep Time during power saving mode
RW
INT32
3200
3200
12800
RO
eAI1Current
RO
(IEEE 32 bit)
3202
12802
RO
eAI2Current
RO
(IEEE 32 bit)
3204
12804
RO
eAI1Val
RO