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User Manual

2600T Series Pressure Transmitters

266 Models

WirelessHART

Operating Instruction OI/266/WIHART-EN

Engineered solutions for all

applications

2 OI/266/WIHART-EN | 2600T Series Pressure transmitters

The Company

We are an established world force in the design and manufacture of measurement products for industrial process control, ﬂow

measurement, gas and liquid analysis and environmental applications.

As a part of ABB, a world leader in process automation technology, we offer customers application expertise, service and support

worldwide.

We are committed to teamwork, high quality manufacturing, advanced technology and unrivalled service and support.

The quality, accuracy and performance of the Company’s products result from over 100 years experience, combined with

acontinuous program of innovative design and development to incorporate the latest technology.

2600T Series Pressure transmitters | OI/266/WIHART-EN 3

Contents

Index

1. Introduction .........................................................5

1.1 Instruction manual structure ......................................... 5

1.2 Models covered by this manual ..................................... 5

1.3 Product description ...................................................... 5

2 Safety ....................................................................6

2.1 General safety information ............................................ 6

2.2 Improper use ............................................................... 6

2.3 Technical limit values .................................................... 6

2.4 Warranty prevision ........................................................ 6

2.5 Use of instruction ......................................................... 6

2.6 Operator liability ........................................................... 7

2.7 Qualified personnel ....................................................... 7

2.8 Returning devices ......................................................... 7

2.9 Disposal ....................................................................... 7

2.10 Information on WEEE Directive 2002/96/EC ............... 7

2.11 Transport and storage ................................................ 7

2.11.1 Shipping considerations for wireless products ..... 7

2.12 Safety information for battery installation ..................... 7

2.13 Safety information for inspection and maintenance ...... 7

3 Transmitter overview ............................................8

3.1 Transmitter components overview................................. 8

3.2 Range & Span consideration ......................................... 9

4 Opening the box ................................................. 10

4.1 Identification .............................................................. 10

4.2 Optional wired-on SST plate (I1) ................................. 11

4.3 Handling .................................................................... 11

4.4 Storage ...................................................................... 11

5 Mounting ............................................................. 12

5.1 General ...................................................................... 12

5.2 IP protection & designation ......................................... 12

5.3 Mounting the transmitter............................................. 12

5.3.1 Transmitter factory configuration consideration ... 12

5.3.2 Hazardous area considerations ........................... 12

5.4 Pressure Equipment Directive (PED) (97/23/CE) .......... 13

5.4.1 Devices with PS >200 ......................................... 13

5.4.2 Devices with PS ≤200 bar ................................... 13

5.5 Mounting a DP sensor transmitter ............................... 13

5.5.1 Bracket mounting (optional) ................................. 14

5.5.2 B2 Pipe and wall mounting bracket details ........... 16

5.5.3 B5 Flat type bracket details ................................. 17

5.6 Mounting a P style pressure transmitter ...................... 18

5.6.1 B1 and B2 Barrel housing bracket details ............ 19

5.7 Transmitter housing rotation ....................................... 20

5.8 Integral display rotation .............................................. 20

5.9 Antenna rotation ......................................................... 20

5.10 Impulse piping connection for standard instruments .. 20

5.11 Process connections considerations ......................... 21

5.12 Kynar inserts connection .......................................... 21

5.13 Installation recommendations ................................... 22

5.13.1 Steam or clean liquids flow measurement .......... 22

5.13.2 Gas or liquid flow measurement ......................... 22

5.13.3 Liquid level measurements (dry leg) ................... 23

5.13.4 Liquid level measurement (wet leg) .................... 23

5.13.5 Liquid level measurement with open tanks ......... 23

5.13.6 Pressure measurement of a tank ....................... 24

5.13.7 Pressure measurement of a liquid in a pipe ........ 24

5.13.8 Pressure measurement of vapor in a pipe ......... 25

5.13.9 Pressure measurement of a gas in a pipe ........... 25

6 Transmitter connection ....................................... 26

6.1 Network architecture .................................................. 26

6.2 Design and function .................................................. 26

6.3 HART ......................................................................... 27

6.4 Supply requirement .................................................... 27

6.5 Powering the transmitter on ........................................ 27

6.6 Protective Grounding .................................................. 27

7 Commissioning ................................................... 28

7.1 Standard setting for normal operation ......................... 28

7.2 Standard setting for error detection (alarm) ................. 28

7.3 Write Protection ......................................................... 28

7.4 Correcting the lower range value / zero shift ................ 28

7.5 Correct the zero shift .................................................. 28

7.6 Joining the network .................................................... 29

7.7 Burst ......................................................................... 29

7.7.1 Burst configuration .............................................. 29

7.7.2 Burst status ........................................................ 30

7.7.3 Status byte ......................................................... 30

7.8 Commissioning by HART Handheld Terminal ............... 31

7.8.1 EDD structure for 266 WiPressure ....................... 34

7.9 Commissioning by DTM .............................................. 36

7.9.1 Network Diagnostics by DTM .............................. 36

8 Operation ............................................................ 37

8.1 Local push buttons functionality .................................. 37

8.2 Factory settings ........................................................ 37

8.3 Configuration types .................................................... 37

8.4 Configuring without an integral LCD HMI ..................... 37

8.5 LRV and URV configuration ........................................ 37

8.6 Configuration using the LCD with keypad .................... 38

8.7 HMI as feedback of the local push button operations .. 38

8.8 HMI menu structure .................................................... 38

8.8.1 Easy Set-up ........................................................ 40

8.8.2 Device Set-up ..................................................... 41

8.8.3 Display ............................................................... 45

8.8.4 Calibrate ............................................................. 48

8.8.5 Diagnostics ......................................................... 49

8.8.6 Device Info .......................................................... 50

8.8.7 Communication ................................................... 51

8.9 Transfer function ........................................................ 53

8.9.1 Linear ................................................................. 53

8.9.2 Square root ........................................................ 53

8.9.3 Square root to the 5th power .............................. 54

8.9.4 Custom linearization curve ................................... 54

8.9.5 Bidirectional Flow ............................................... 54

8.9.6 Square root to the 3rd power .............................. 54

8.9.7 Cylindric lying tank ............................................. 55

8.9.8 Spherical Tank ................................................... 55

8.10 Configuration with the PC or handheld terminal ........ 55

8.11 Configuration with DTM - System requirements ......... 55

4 OI/266/WIHART-EN | 2600T Series Pressure transmitters

Contents

9 Troubleshooting .................................................. 56

9.1 Overview .................................................................... 56

9.2 Device-related issues ................................................. 56

9.2.1 Device does not power on ................................... 56

9.3 Network-related issues .............................................. 56

9.3.1 General ............................................................... 56

9.3.2 Device does not join the network ......................... 56

9.3.3 Burst troubleshooting .......................................... 57

9.4 HMI as diagnostic indicator ...................................... 58

9.5 HMI as feedback of the local push button operations .. 58

9.6 Error states and alarms .............................................. 59

10 Maintenance ..................................................... 62

10.1 Returns and removal ................................................ 62

10.2 Pressure transmitter sensor ...................................... 62

10.3 Removing/Installing the process ﬂanges .................... 62

10.4 Pressure transducer replacement .............................. 63

10.5 Electronic replacement ............................................. 63

10.6 Battery replacement ................................................. 63

11 Hazardous Area considerations ........................ 64

11.1 Ex Safety aspects and IP Protection (Europe) ............ 64

11.2 Ex Safety aspects and IP Protection (North America) . 67

11.2.1 Applicable standards ......................................... 67

11.2.2 Classiﬁcations ................................................... 67

12 Compliance for Radio and Telecommunication ... 68

12.1 FCC Compliance ...................................................... 68

12.2 IC Compliance ......................................................... 68

12.3 R&TTE Compliance 1999/5/EC ................................. 68

2600T Series Pressure transmitters | OI/266/WIHART-EN 5

1 Introduction

1. Introduction

1.1 Instruction manual structure

The present manual provides information on installing, operating,

troubleshooting the 266 pressure transmitter. Every section of

the present manual is speciﬁcally dedicated to the speciﬁc phase

of the transmitter lifecycle starting from the receipt of the

transmitter and its identiﬁcation, passing to the installation, to the

electrical connections, to the conﬁguration and to the

troubleshooting and maintenance operations.

1.2 Models covered by this manual

The present manual can be used for all the 266 wireless

models (266DxH, 266HxH and 266NxH).

1.3 Product description

The pressure transmitters model 266 is a modular range of ﬁeld

mounted, microprocessor based electronic transmitters,

multiple sensor technologies. Accurate and reliable

measurement of differential pressure, gauge and absolute

pressure, ﬂow and liquid level is provided, in the even most

difﬁcult and hazardous industrial environments. Model 266 can

be conﬁgured to provide speciﬁc industrial output signals.

6 OI/266/WIHART-EN | 2600T Series Pressure transmitters

2 Safety notes

2 Safety

2.1 General safety information

The “Safety” section provides an overview of the safety aspects

to be observed for operation of the device.

The device has been designed and manufactured in

accordance with the state of the art and is operationally safe. It

has been tested and left the factory in perfect working

conditions. The information in the manual, as well as the

applicable documentation and certiﬁcates, must be observed

and followed in order to maintain this condition throughout the

period of operation. Full compliance with the general safety

requirements must be observed during operation of the device.

In addition to the general information, the individual sections in

the manual contain descriptions of processes or procedural

instructions with speciﬁc safety information.

Only by observing all of the safety information can you reduce

to the minimum the risk of hazards for personnel and/or

environment. These instructions are intended as an overview

and do not contain detailed information on all available models

or every conceivable event that may occur during setup,

operation, and maintenance work. For additional information,

or in the event of speciﬁc problems not covered in detail by

these operating instructions, please contact the manufacturer.

In addition, ABB declares that the contents of this manual are

not part of any prior or existing agreements, commitments, or

legal relationships; nor are they intended to amend these. All

obligations of ABB arise from the conditions of the relevant

sales agreement, which also contains the solely binding

warranty regulations in full. These contractual warranty

provisions are neither extended nor limited by the information

provided in this manual.

Caution. Only qualiﬁed and authorized specialist personnel should

be charged with installation, electrical connection, commissioning,

and maintenance of the transmitter. Qualiﬁed personnel are persons

who have experience in installation, electrical wiring connection,

commissioning, and operation of the transmitter or similar devices,

and hold the necessary qualiﬁcations such as:

— Training or instruction, i.e., authorization to operate and

maintain devices or systems according to safety engineering

standards for electrical circuits, high pressures, and

aggressive media

— Training or instruction in accordance with safety engineering

standards regarding maintenance and use of adequate safety

systems.

For safety reasons, ABB draws your attention to the fact that only

sufﬁciently insulated tools conforming to IEC 60900 and EN 60900

may be used.

Since the transmitter may form part of a safety chain, we

recommend replacing the device immediately if any defects are

detected. In case of use in Hazardous Area non sparking tools only

must be employed.

In addition, you must observe the relevant safety regulations

regarding the installation and operation of electrical systems,

and the relevant standards, regulations and guidelines about

explosion protection.

Warning. The device can be operated at high levels of pressure

and with aggressive media. As a result, serious injury or signiﬁcant

property damage may occur if this device is operated incorrectly.

2.2 Improper use

It is prohibited to use the device for the following purposes:

— As a climbing aid, e.g., for mounting purposes

— As a support for external loads, e.g., as a support for pipes.

— Adding material, e.g., by painting over the name plate or

welding/soldering on parts

— Removing material, e.g., by drilling the housing.

Repairs, alterations, and enhancements, or the installation of

replacement parts, are only permissible as far as these are

described in the manual. Approval by ABB must be requested

for any activities beyond this scope. Repairs performed by

ABB-authorized centers are excluded from this.

2.3 Technical limit values

The device is designed for use exclusively within the values

stated on the name plates and within the technical limit values

speciﬁed on the data sheets.

The following technical limit values must be observed:

— The Maximum Working Pressure may not be exceeded.

— The Maximum ambient operating temperature may not be

exceeded.

— The Maximum process temperature may not be

exceeded.

— The housing protection type must be observed.

2.4 Warranty prevision

Using the device in a manner that does not fall within the scope

of its intended use, disregarding this manual, using

underqualiﬁed personnel, or making unauthorized alterations,

releases the manufacturer from any liability for any resulting

damage. This makes the manufacturer’s warranty null and void.

2.5 Use of instruction

Danger – <Serious damage to health/risk to life>. This message

indicates that an imminent risk is present. Failure to avoid this will

result in death or serious injury.

Caution – <Minor injuries>. This message indicates a potentially

dangerous situation. Failure to avoid this could result in minor

injuries. This may also be used for property damage warnings.

Important. This message indicates indicates operator tips or

particularly useful information. It does not indicate a dangerous or

damaging situation.

Warning – <Bodily injury>. This message indicates a potentially

dangerous situation. Failure to avoid this could result in death or

serious injury

Attention – <Property damage>. This message indicates a

potentially damaging situation. Failure to avoid this could result in

damage to the product or its surrounding area.

2600T Series Pressure transmitters | OI/266/WIHART-EN 7

2 Safety notes

2.6 Operator liability

Prior to using corrosive and abrasive materials for measurement

purposes, the operator must check the level of resistance of all

parts coming into contact with the materials to be measured.

ABB will gladly support you in selecting the materials, but cannot

accept any liability in doing so.The operators must strictly

observe the applicable regulations with regard to installation,

function tests, repairs, and maintenance of electrical devices.

2.7 Qualified personnel

Installation, commissioning, and maintenance of the device may

only be performed by trained specialist personnel who have

been authorized by the plant operator. The specialist personnel

must have read and understood the manual and comply with its

instructions.

2.8 Returning devices

Use the original packaging or suitably secure shipping package if

you need to return the device for repair or recalibration

purposes. Fill out the return form (see the end of the document)

and include this with the device. According to EC guidelines and

other local laws for hazardous materials, the owner of hazardous

waste is responsible for its disposal. The owner must observe

the proper regulations for shipping purposes. All devices sent

back to ABB must be free from any hazardous materials (acids,

alkalis, solvents, etc.).

2.9 Disposal

ABB actively promotes environmental awareness and has an

operational management system that meets the requirements of

DIN EN ISO 9001:2008, EN ISO 14001:2004, and OHSAS

18001. Our products and solutions are intended to have

minimum impact on the environment and persons during

manufacturing, storage, transport, use and disposal. This

includes the environmentally friendly use of natural resources.

ABB conducts an open dialog with the public through its

publications. This product is manufactured from materials that

can be reused by specialist recycling companies.

2.10 Information on WEEE Directive 2002/96/EC

(Waste Electrical and Electronic Equipment)

This product or solution is not subject to the WEEE Directive

2002/96/EC or corresponding national laws (e.g., the ElektroG -

Electrical and Electronic Equipment Act - in Germany). Dispose

of the product/solution directly at a specialist recycling facility; do

not use municipal garbage collection points for this purpose.

According to the WEEE Directive 2002/96/EC, only products

used in private applications may be disposed of at municipal

garbage facilities. The included battery shall be disposed

according to European Battery Directive 2006/66/EC which is

transposed individually in each EU member state. Proper

disposal prevents negative effects on people and the

environment, and supports the reuse of valuable raw materials.

ABB can accept and dispose of returns for a fee.

2.11 Transport and storage

— After unpacking the device, check for transport damage.

— Check the packaging material for accessories.

— During intermediate storage or transport, store the

pressure transmitter in the original packaging only.

For information on permissible ambient conditions for storage

and transport, see “Technical data”. Although there is no limit on

the duration of storage, the warranty conditions stipulated on the

order acknowledgment from the supplier still apply.

2.11.1 Shipping considerations for wireless products

containing Lithium batteries

The device is shipped with a Lithium battery in shape of a D-Cell.

The battery is already installed.

Transport of lithium batteries is subject to speciﬁc regulations.

Regulations are based on the United Nations Model Regulations

on the Transport of Dangerous Goods. The most important

regulations can be summarized as follows:

C- and D-size cells as well as larger cells and most battery

packs have to be transported under dangerous goods

regulations.

Lithium batteries below 2 grams lithium content (corresponding

approximately to 3 AA cells) are exempted from dangerous

goods regulations but each package requires a special label to

indicate that it contains lithium batteries and special procedures

shall be followed when a package is damaged during

transportation.

Transport regulations require that lithium cells and batteries of all

kinds, exempted or not, be tested according to the UN test

methods.

Packing instructions for air transport of lithium batteries

worldwide are revised bienially by the International Civil Aviation

Organization (ICAO) and distributed in various languages by the

International Air Transport Association (IATA). According to the

regulations, Tadiran Lithium Batteries are classiﬁed as lithium

metal batteries. Different regulations are valid for transport in the

USA.

2.12 Safety information for battery installation

The battery shall be installed by specialist personnel paying

attention to the polarity.

2.13 Safety information for inspection and

maintenance

Warning – Risk to persons. There is no EMC protection or

protection against accidental contact when the housing cover is

open. There are electric circuits within the housing which are

dangerous if touched. Therefore, the auxiliary power must be

switched off before opening the housing cover.

Warning – Risk to persons The device can be operated at high

pressure and with aggressive media. Any process media released

may cause severe injuries. Depressurize the pipeline/tank before

opening the transmitter connection.

Corrective maintenance work may only be performed by trained

personnel.

— Before removing the device, depressurize it and any

adjacent lines or containers.

— Check whether hazardous materials have been used as

materials to be measured before opening the device.

Residual amounts of hazardous substances may still be

present in the device and could escape when the device is

opened.

— Within the scope of operator responsibility, check the

following as part of a regular inspection:

Pressure-bearing walls/lining of the pressure device

Measurement-related function

Leak-tightness

Wear (corrosion)

8 OI/266/WIHART-EN | 2600T Series Pressure transmitters

3 Transmitter overview

3.1 Transmitter components overview

Figure 1: Pressure transmitter components

1 - LCD display with keypad (L1 option)

2 - TTG display with keypad (L5 option)

3 - Standard LCD display (L9 option)

2600T Series Pressure transmitters | OI/266/WIHART-EN 9

3 Transmitter overview

3.2 Range & Span consideration

The 2600T Transmitter Speciﬁcation Sheets provide all

information concerning the Range and Span limits in relation to

the model and the sensor code.

The terminology currently used to deﬁne the various

parameters is as follows:

URL: Upper Range Limit of a speciﬁc sensor. The highest

value of the measured value that the transmitter can

be adjusted to measure.

LRL: Lower Range Limit of a speciﬁc sensor. The lowest

value of the measured value that the transmitter can

be adjusted to measure.

URV: Upper Range Value. The highest value of the

measured value to which the transmitter is calibrated.

LRV: Lower Range Value. The lowest value of the

measured value to which the transmitter is calibrated.

SPAN: The algebraic difference between the Upper and

Lower Range Values. The minimum span is the

minimum value that can be used without degradation

of the speciﬁed performance.

TD: (or Turn Down Ratio)is the ratio between the

maximum span and the calibrated span.

The transmitter can be calibrated with any range between the

LRL and the URL with the following limitations:

LRL ≤ LRV ≤ (URL - CAL SPAN)

CAL SPAN ≥ MIN SPAN

URV ≤ URL

10 OI/266/WIHART-EN | 2600T Series Pressure transmitters

4 Opening the box

Figure 2: Product identiﬁcation

Local keys below label

PRODUCT CODE

SEAL-H SEAL-L

SPEC.REQUEST

LRL/URL

SPAN LIMITS

POWER SUPPLY OUTPUT SIGNAL

ABB S.p.A.

Made in Italy

TS PS

SERIAL\NUMBER

SENSOR DIAPH.-FILL

FLANGE/CONN.-GASKET/S

H DIAPH.-FILL

L DIAPH.-FILL

SEAL

HW Rev. MD:

PED:

MWP/OVP

0474

0722

II 1 G Ex ia IIC T4 - II 1/2 G Ex ia IIC T4

FM14ATEX0007X - IECEx FME 14.0002X

Lithium inorganic battery inside

IS/Sec. Intrinseque (Entity) CL I,

ZONE 0 AEx/Ex ia IIC T4

CL I/DIV1/GP ABCD

APPROVED

C US

-50°C < Ta < +70°C - IP67

WARNING : USE ONLY ABB BATTERY CODE 3KXP004006U0100

Contains FCC ID : 2AC5O-WICB

This device complies with part 15 of the FCC Rules. 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 undesidered operation.

Contains IC : 12311A-WICB

ABB S.p.A.

Lenno (Co) Italy

4 Opening the box

4.1 Identification

The instrument is identiﬁed by the data plates shown in Figure 3. The certiﬁcation plate (ref. A): contains the certiﬁcation related

parameters for use in Hazardous area.

The Nameplate (ref.B) provides information concerning the model code, maximum working pressure, range and span limits, power

supply , output signal, diaphragms material, ﬁll ﬂuid, range limit, serial number, maximum process working pressure (PS) and

temperature (TS).

Important.

Please refer to the serial number when making enquiries to ABB Service department.

The Tag plate (ref.C) also provides customer tag number and calibrated range. The instrument may be used as a pressure

accessory (category III) as deﬁned by the Pressure Equipment Directive 97/23/EC. In this case, near the CE mark, you will ﬁnd the

number of the notiﬁed body (0474) that have veriﬁed the compliance. 266 pressure transmitters are in compliance with

EMC 2004/108/CE.

The certification plate (ref.A) shown here is issued by ABB S.p.A, 22016 Lenno, Italy, with the numbers:

— FM14ATEX0007 or IECEx FME 14.0002 (Ex ia)

— FM14ATEX0008 or IECEx FME 14.0002 (Ex nA)

CE-Identiﬁcation number of the notiﬁed bodies to Pressure Equipment Directive: 0474, to ATEX certiﬁcation: 0722, to IECEx

certiﬁcation: IT/CES/QAR07.0001/02.

2600T

Tag

Number

Calib.

Range

PRESSURE TRANSMITTER

2600T Series Pressure transmitters | OI/266/WIHART-EN 11

4 Opening the box

4.2 Optional wired-on SST plate (I1)

The 266 transmitter can be supplied with the optional “Wired

On Stainless Steel plate” (ﬁgure 4) which is permanently laser

printed with a custom text speciﬁed in phase of order. The

available space consists in 4 lines with 32 characters per line.

The plate will be connected to the transmitter with a Stainless

Steel wire.

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

Figure 3: 4-line layout of the optional wired-on Stainless Steel plate

4.3 Handling

The instrument does not require any special precautions during

handling although normal good practice should be observed.

4.4 Storage

The instrument does not require any special treatment if stored

as dispatched and within the speciﬁed ambient conditions.

There is no limit to the storage period, although the terms of

guarantee remain as agreed with the Company and as given in

the order acknowledgement.

Lithium batteries installed into the WirelessHART pressure

transmitter should be stored in a clean and dry area. For

maximum battery life, storage temperature should not exceed

30° C (86 °F).

12 OI/266/WIHART-EN | 2600T Series Pressure transmitters

5 Mounting

5.1 General

Study these installation instructions carefully before proceeding.

Failure to observe the warnings and instructions may cause a

malfunction or personal hazard. Before installing the transmitter,

check whether the device design meets the requirements of the

measuring point from a measurement technology and safety

point of view.

This applies in respect of the:

— Explosion protection certification

— Measuring range

— Gauge pressure stability

— Temperature

— Operating voltage

The suitability of the materials must be checked as regards

their resistance to the media. This applies in respect of the:

— Gasket

— Process connection, isolating diaphragm, etc.

In addition, the relevant directives, regulations, standards, and

accident prevention regulations must be observed (e.g., VDE/

VDI 3512, DIN 19210, VBG, Elex V, etc.). Measurement

accuracy is largely dependent on correct installation of the

pressure transmitter and, if applicable, the associated

measuring pipe(s). As far as possible, the measuring setup

should be free from critical ambient conditions such as large

variations in temperature, vibrations, or shocks.

Important. If unfavorable ambient conditions cannot be avoided for

reasons relating to building structure, measurement technology, or

other issues, the measurement quality may be affected. If a remote

seal with capillary tube is installed on the transmitter, the additional

operating instructions for remote seals and the related data sheets

must be observed.

5.2 IP protection & designation

The housings for 266 transmitters are certiﬁed as conforming to

protection type IP66 / IP67 (according to IEC 60529).

The ﬁrst number indicates the type of protection the integrated

electronics have against the entry of foreign bodies, including

dust.

“6” means that the housing is dust-proof (i.e., no ingress of

dust). The second number indicates the type of protection

the integrated electronics have against the entry of water.

The second number indicates the type of protection the hosing

has against the entry of water.

“6” means that the housing is protected against water;

speciﬁcally, powerful jets of water under standardized

conditions.

“7” means that the housing is protected against water;

speciﬁcally, against the effects of temporary immersion in

water under standardized water pressure and temporal

conditions.

5.3 Mounting the transmitter

5.3.1 Transmitter factory configuration consideration

The 266 pressure transmitter in your hands has been factory

calibrated to reﬂect the published declared performance

speciﬁcation; no further calibration is required in normal

condition. ABB typically conﬁgures 266 pressure transmitters

according to the user requirements. A typical conﬁguration

includes:

— TAG number

— Calibrated span

— Output linearization

— LCD display conﬁguration

5.3.2 Hazardous area considerations

The transmitter must be installed in hazardous area only if it is

properly certiﬁed. The certiﬁcation plate is permanently ﬁxed on

the neck of the transmitter top housing. The 266 Pressure

Transmitter Line can have the following certiﬁcations:

ATEX INTRINSIC SAFETY

— II 1 G Ex ia IIC T4 and II 1/2 G Ex ia IIC T4

COMBINED ATEX, ATEX FM and FM Canada

— See detailed classiﬁcations

FM Approvals US and FM Approvals Canada:

— Intrinsically safe: Class I, II, III, Div. 1, Groups A, B, C, D

— Class I, Zone 0, AEx ia IIC T6/T4 (FM US)

— Class I, Zone 0, Ex ia IIC T6/T4 (FM Canada)

IEC (Ex):

— See detailed classiﬁcations

Warning - General risks. Unused port plug must be in accordance

with the intended type of protection (e.g. intrinsically safe, explosion

proof, etc.) and degree of protection (e.g. IP6x according to IEC EN

60529). See also the addendum for “EX SAFETY” ASPECTS AND

“IP” PROTECTION. In particular, for explosion proof installation,

remove the red temporary plastic cap and plug the unused opening

with a plug certiﬁed for explosion containment

Warning - General risks. Model 266 enclosure contains aluminium

and is considered to present a potential risk of ignition by impact or

friction. Care must be taken into account during installation and use

to prevent impact or friction.

2600T Series Pressure transmitters | OI/266/WIHART-EN 13

5 Mounting

Figure 4: 266 nameplate with PED data

Local keys below label

PRODUCT CODE

SEAL-H SEAL-L

SPEC.REQUEST

LRL/URL

SPAN LIMITS

POWER SUPPLY OUTPUT SIGNAL

ABB S.p.A.

Made in Italy

TS PS

SERIAL\NUMBER

SENSOR DIAPH.-FILL

FLANGE/CONN.-GASKET/S

H DIAPH.-FILL

L DIAPH.-FILL

SEAL

HW Rev. MD:

PED:

MWP/OVP

Important. In case of a High Static differential pressure transmitter,

please notice that the Vent/Drain valves can be conﬁgured only on

the process axis (V1).

5.4.2 Devices with PS ≤200 bar

Devices with a permissible pressure PS ≤200 bar correspond

to article 3 paragraph (3). They have not been subject to a

conformity validation. These instruments were designed and

manufactured acc. to SEP Sound Engineering Practices.

5.5 Mounting a DP sensor transmitter

(266DS/266DR)

The pressure transmitter model 266DS can be mounted directly

on the manifold. A mounting bracket for wall or pipe mounting

(2” pipe) is also available as an accessory. For model 266DR

always mounting brackets should be used. Ideally, the pressure

transmitter should be mounted in a vertical position to prevent

subsequent zero shifts.

Important. If the transmitter is installed inclined with respect to the

vertical, the ﬁlling liquid exerts hydrostatic pressure on the

measuring diaphragm, resulting in a zero shift. In such an event, the

zero point can be corrected via the zero push-button or via the “set

PV to zero” command. Please refer to the [conﬁguration section] for

further details. For transmitters without diaphragm seals, please

read the following considerations on the Vent/Drain.

Attention − Potential damage to transmitter. In case of a High

Static differential pressure transmitter (266DSH.x.H) please always

open the equalization valve of the manifold (if installed) before

applying pressure to the transmitter. High Static pressure can

damage the sensor causing a zero shift and a serious decrease of

the total performance in terms of accuracy. In this case, please

perform a full sensor trim.

It is important to mount the transmitter and to lay the process

Figure 5: Drain/vent valves conﬁguration (respectively V1, V2, V3)

5.4 Pressure Equipment Directive (PED) (97/23/CE)

5.4.1 Devices with PS >200

Devices with a permissible pressure PS >200 bar have been

subject to a conformity validation. The data label includes the

following speciﬁcations:

piping so that gas bubbles, when measuring liquids, or

condensate when measuring gases, will ﬂow back to the

process and not enter the transmitter measuring chamber.

Optional Vent/drain valves (code V1/V2/V3) on the transmitter

are located on the sensor ﬂanges.

The transmitter has to be positioned so that these drain/vent

valves will be located higher than the taps on liquid service in

order to allow the venting of entrapped gas or below the taps

on gas service in order to allow the air to vent off or

condensate to drain off. For safety reasons, take care of the

drain/vent valves position so that when the process ﬂuid is

removed during the drain/vent operation it is directed down

and away from technicians. It is recommended to mount the

transmitter to prevent this possible source of damage for

unskilled operators.

14 OI/266/WIHART-EN | 2600T Series Pressure transmitters

5 Mounting

5.5.1 Bracket mounting (optional)

Different mounting brackets are available please refer to the relevant installation drawing below:

142 (5.59)

179 (7.02)

91 (3.58)

145 (5.70)

(*)

70 (2.75)

Figure 6: Differential Pressure Style transmitter with barrel housing installed on a horizontal pipe with optional bracket (B2)

96.8 (3.81)

100 (3.94) for NACE bolting

179 (7.02)

91 (3.58)

145 (5.70)

54 (2.13)

78 (3.07) with d/v valve

29 (1.14)

18 (0.71)

210 (8.28)

58 (2.28) 55 (2.17)

66 (2.60) with plug

41.3 (1.63)

65 (2.53)

102 (4.02) 29 (1.12)

9 (0.35)

Figure 7: Differential Pressure Style transmitter (High Static option)

78 (3.07) with d/v valve

29 (1.14)

18 (0.71)

210 (8.28)

58 (2.28) 55 (2.17)

11 (0.43)

66 (2.60) with plug

41.3 (1.63)

65 (2.53)

102 (4.02) 29 (1.12)

9 (0.35)

29 (1.14)

18 (0.71)

2600T Series Pressure transmitters | OI/266/WIHART-EN 15

5 Mounting

142 (5.59)

(*)

179 (7.02)

91 (3.58)

123 (4.86)

113 (4.43)

29 (1.14)

18 (0.71)

210 (8.28)

113 (4.45)

11 (0.43)

72 (2.83)

66 (2.60) with plug

78 (3.07) with d/v valve

58 (2.28) 55 (2.17)

Figure 8: Differential Pressure Style transmitter with barrel housing installed on a vertical pipe with optional bracket (B2)

91 (3.58)

179 (7.02)

54 (2.13)

116 (4.57)

29 (1.14)

18 (0.71)

113 (4.45)

72 (2.83)

210 (8.28)

18 (0.71) 58 (2.28) 55 (2.17)

89 (3.48)

1/4 or

1/2 NPT

Figure 9: Differential Pressure Style transmitter with barrel housing and Kynar inserts installed on a vertical pipe with optional bracket (B2)

16 OI/266/WIHART-EN | 2600T Series Pressure transmitters

5 Mounting

Figure 11: Pipe and wall mounting bracket kit (B2)

1 – U-bolt

2 – U-bolt ﬁxing bolt and washer

3 – Transmitter ﬁxing bolts

4 – B2 bracket

54 (2.13)

123 (4.86)

113 (4.43)

179 (7.02)

91 (3.58)

29 (1.14)

18 (0.71)

18 (0.71) 55 (2.17)

58 (2.28)

210 (8.28)

113 (4.45)

72 (2.83)

Figure 10: Differential Pressure Style transmitter with barrel housing and Kynar inserts installed on a vertical pipe with optional bracket (B2)

5.5.2 B2 Pipe and wall mounting bracket details

All the bolts and nuts supplied are necessary for the installation on pipe. In case of panel or wall installation, the U-bolt and the

U-bolt nuts and washers will not have to be used.

The bolts for panel mounting are not within the scope of supply.

2600T Series Pressure transmitters | OI/266/WIHART-EN 17

5 Mounting

142 (5.59)

(*)

70 (2.75)

179 (7.02)

91 (3.58)

166 (6.53)

70 (2.75)

84 (3.31)

117 (4.60)

29 (1.14)

18 (0.71)

11 (0.43)

210 (8.28)

58 (2.28) 55 (2.17)

95 (3.72)

174 (6.86)

Figure 12: Differential Pressure Style transmitter with barrel housing installed on a box pipe with optional bracket for SST housing (B5)

5.5.3 B5 Flat type bracket details

1 – U-bolt

2 – U-bolt ﬁxing bolt and washer

3 – Transmitter ﬁxing bolts

4 – B5 bracket

Figure 13: Flat type mounting bracket kit (B5)

18 OI/266/WIHART-EN | 2600T Series Pressure transmitters

5 Mounting

5.6 Mounting a P style pressure transmitter

(266H and 266N)

The pressure transmitter can be mounted directly on the

manifold.

A mounting bracket for wall or pipe mounting (2” pipe) is also

available as an accessory.

Ideally, the pressure transmitter should be mounted in a

vertical position to prevent subsequent zero shifts.

Figure 14: Model 266H or 266N High overload resistant P-Style transmitter with 1/2-14 NPT male process connection and barrel housing

installed on a 2”pipe with optional bracket (B1 carbon steel or B2 Stainless Steel 316L)

Important. If the transmitter is installed inclined with respect to the

vertical, the ﬁlling liquid exerts hydrostatic pressure on the

measuring diaphragm, resulting in a zero shift. In such an event, the

zero point can be corrected via the zero push-button or via the “set

PV to zero” command. Please refer to the [conﬁguration section] for

further details. For transmitters without diaphragm seals the Vent /

Drain considerations below should be taken into consideration.

91 (3.58)

72 (2.83)

18 (0.71)

113 (4.45) 29 (1.14)

18 (0.71)

145 (5.71)

18 (0.71)

16 (0.63)

36 (1.42)

108 (4.25) 49 (1.93)

19 (0.75)

32 (1.26) width across

ﬂats of exagon

18 (0.71)

113 (4.45) 29 (1.14)

18 (0.71)

145 (5.71)

91 (3.58)

18 (0.71)

16 (0.63)

108 (4.25)

72 (2.83)

39 (1.54)

49 (1.93)

54 (2.13)

1/2 - 14 NPT

32 (1.26) width across

ﬂats of exagon

Figure 15: Model 266H or 266N High overload resistant P-Style transmitter with 1/2-14 NPT female process connection and barrel

housing installed on a 2”pipe with optional bracket (B1 carbon steel or B2 Stainless Steel 316L)

2600T Series Pressure transmitters | OI/266/WIHART-EN 19

5 Mounting

29 (1.14)

18 (0.71) 18 (0.71)

145 (5.71)

19 (0.74)

Ø65 (2.56)

91 (3.58)

12 (0.45)

105 (4.12)

116 (4.57)

72 (2.83)

283 (11.12)

113 (4.45)

23 (0.9) width across

ﬂats of exagon

Figure 16: Model 266H or 266N High overload resistant P-Style transmitter with sensor Z with barrel housing installed on a 2”pipe with

optional bracket (B1 carbon steel or B2 Stainless Steel 316L)

5.6.1 B1 and B2 Barrel housing bracket details

Figure 17: Pipe and wall mounting bracket kits for P style transmitter with Barrel housing

1 – U-bolt

2 – U-bolt ﬁxing washers and nuts

3 – Transmitter ﬁxing bolts

4 – B1 or B2 bracket

5 – Fitting adapter (supplied with 266HSH)

20 OI/266/WIHART-EN | 2600T Series Pressure transmitters

5 Mounting

5.7 Transmitter housing rotation

To improve ﬁeld access to the wiring or the visibility of the

optional LCD meter, the transmitter housing may be rotated

through 360° and ﬁxed in any position. A stop prevents the

housing from being turned too far. In order to proceed with

housing rotation, the housing stop tang-screw has to be

unscrewed by approximately 1 rotation (do not pull it out) and,

once the desired position has been reached, retightened.

Figure 18: Housing rotation

5.8 Integral display rotation

In case an optional integral display meter is installed, it is

possible to mount the display in four different positions rotated

clockwise or counterclockwise with 90° steps. To rotate the

LCD, simply open the windowed cover (Hazardous area

prescriptions must be respected), pull-out the display housing

from the communication board.. Reposition the LCD connector

according to the new desired position. Push back the LCD

module on the communication board. Be sure that the 4 plastic

ﬁxing locks are properly in place.

5.9 Antenna rotation

Usually the antenna should be turned into a vertical or

horizontal positions. The antenna must not be rotated more

than 360° in order to not prevent HF wires inside the

transmitter from damaging. Please refer to the pictures below

to identify wireless signal coverage areas.

5.10 Impulse piping connection for standard

instruments

In order for the pipes to be laid correctly, the following points

must be observed:

— The measuring pipes must be as short as possible and

free from sharp bends.

— Lay the impulse piping in such a way that no deposits

accumulate in them. Gradients should not be less than

approx. 8% (ascending or descending).

— The measuring pipes should be blown through with

compressed air or, better yet, ﬂushed through with the

measuring medium before connection.

— Where a ﬂuid/vaporous measuring medium is being used,

the liquid in both measuring pipes must be at the same

level. If a separating liquid is being used, both measuring

pipes must be ﬁlled to the same level (266Dx).

— Although it is not absolutely necessary to use balancing

vessels with vaporous measuring media, measures must

be taken to prevent steam entering the measuring

chambers of the measuring equipment (266Dx).

— It may be necessary to use condensate vessels, etc., with

small spans and vaporous measuring media (266Dx).

— If using condensate vessels (steam measurement), you

should ensure that the vessels are at the same elevation

in the differential pressure piping (266Dx).

— As far as possible, keep both impulse lines at the same

temperature (266Dx).

— Completely depressurize the impulse lines if the medium

is a ﬂuid.

— Lay the impulse lines in such a way that gas bubbles

(when measuring ﬂuids) or condensate (when measuring

gases) can ﬂow back into the process line.

— Ensure that the impulse lines are connected correctly

(High and Low pressure sides connected to measuring

equipment, seals...).

— Make sure the connection is tight.

— Lay the impulse line in such a way that prevents the

medium from being blown out over the measuring

equipment.

Caution. Process leaks may cause harm or result in death. Install

and tighten process connectors and all accessories (including

manifolds) before applying pressure. In case of toxic or otherwise

dangerous process ﬂuid, take any precautions as recommended in

the relevant Material Safety Data Sheet when draining or venting.

Use only a 12 mm (15/32“) hexagonal spanner to tighten the

bracket bolts.

Figure 19: Signal coverage according to antenna rotation

2600T Series Pressure transmitters | OI/266/WIHART-EN 21

5 Mounting

Figure 21: Kynar insert

Figure 20: Adapter

5.11 Process connections considerations

266 differential pressure transmitter process connections on

the transmitter ﬂange are 1/4 - 18 NPT, with a centers distance

of 54mm (2.13in) between the connections. The process

connections on the transmitter ﬂange are on centers to allow

direct mounting to a three-valve or ﬁve-valve manifold.

Flange adapter unions with 1/2 - 14 NPT connections are

available as an option. Rotate one or both of the ﬂange

adapters to attain connection centers of 51mm (2.01in), 54mm

(2.13in) or 57mm (2.24in).

To install adapters, perform the following procedure:

1. Position the adapters with the O-ring in place.

2. Bolt the adapters to the transmitter using the bolts

supplied.

3. Tighten the bolts to a torque value of 25Nm (stainless

steel bolts) or 15Nm (for Stainless steel NACE bolts).

For high static model (266DSH.x.H) tighten the bolts to a

torque value of 40 Nm (regardless of the material of the bolts

used). In case of PTFE O-rings, pretightening to 10Nm and ﬁnal

tightening to 50 Nm.

5.12 Kynar inserts connection

When connecting Pressure transmitters equipped with kynar

inserts tighten the bolts to 15 Nm max.

22 OI/266/WIHART-EN | 2600T Series Pressure transmitters

5 Mounting

5.13 Installation recommendations

Impulse piping conﬁguration depends on the speciﬁc

measurement application.

Important. Wireless pressure transmitters are equipped with

antenna and extended rear cover. The following installation

sketches are shown for convenience only. Please consider the

antenna and the battery seat while planning installation schemes.

5.13.1 Steam (condensable vapor) or clean liquids flow

measurement

— Place taps to the side of the line.

— Mount beside or below the taps.

— Mount the drain/vent valve upward.

— In case of steam application ﬁll the vertical section of the

connecting lines with a compatible ﬂuid through the ﬁlling

tees.

The process ﬂuid must enter the transmitter primary:

1. Open equalizing valve (C)

2. Close low pressure (B) and high pressure (A) valves .

3. Open gate valves

4. Slowly open high pressure (A) valve to admit process ﬂuid

to both sides of primary.

5. Vent or drain the primary unit and then close the valves.

6. Open the (B) valve and close the equalizing valve.

Figure 22: Steam or clean liquid ﬂow measurement

(transmitter and manifold)

Figure 23: Gas or liquid ﬂow measurement (transmitter and manifold)

5.13.2 Gas or liquid (with solids in suspension) flow

measurement

— Place the taps to the top or side of the line.

— Mount the transmitter above the taps.

The process ﬂuid must enter the transmitter primary:

1. Open equalizing valve (C)

2. Close low pressure (B) and high pressure (A) valves .

3. Open gate valves

4. Slowly open high pressure (A) valve to admit process ﬂuid

to both sides of primary.

5. Vent or drain the primary unit and then close the valves.

6. Open the (B) valve and close the equalizing valve.

Caution. Manifolds can be supplied both mounted on pressure

transmitters and loose. In case of integral mounting, consider that:

— All adjustments should be carried out by qualiﬁed personnel with

the valve without pressure.

— End connections must not be removed from the body.

— Do not use handle wrenches or extensions to operate the

valves.

— Head units must not be removed once installed.

— Do not cover or remove body marking.

Important. The maximum working temperature of the whole

assembly (manifold and instrument) corresponds to the temperature

limit of the pressure transmitter.

Important. When the manifold is assembled to a 2600T pressure

transmitter with NACE compliance A4-50 Stainless Steel bolts

(available on request), please note that the maximum working

pressure is limited to 210 bar (3045 psi).

2600T Series Pressure transmitters | OI/266/WIHART-EN 23

5 Mounting

5.13.3 Liquid level measurements on closed tanks and

non condensable fluids (dry leg)

— Mount the transmitter at the same height or below the

lowest level to be measured.

— Connect the + (H) side of the transmitter to the bottom of

the tank.

— Connect the - (L) side of the transmitter to the upper part

of the tank, above the maximum level of the tank.

5.13.4 Liquid level measurement with closed tanks and

condensable fluids (wet leg)

— Mount the transmitter at the same height or below the

lowest level to be measured.

— Connect the + (H) side of the transmitter to the bottom of

the tank.

— Connect the - (L) side of the transmitter to the upper part

of the tank.

— Fill the vertical section of the connecting line to the upper

part of the tank with a compatible liquid through the

dedicated filling tee.

Figure 24: Level measurement on closed tank with dry leg

Figure 25: Level measurement on closed tank with wet leg

5.13.5 Liquid level measurement with open tanks

— Mount the transmitter at the same height or below the

lowest level to be measured.

— Connect the + (H) side to the bottom of the tank.

— Vent the “–” (L) side of the transmitter to the atmosphere

(in this case a gauge pressure is shown; the (L) side is

already vented to the atmosphere).

Figure 26: Level measurement on open tank with P style transmitter

24 OI/266/WIHART-EN | 2600T Series Pressure transmitters

5 Mounting

5.13.6 Pressure or absolute pressure measurement of a

tank

— Place the taps in the upper part of the tank.

— Mount the transmitter above the elevation of the process

tap (both pressure and differential pressure transmitter can

be used).

— Connect the transmitter to the tank.

Figure 27: Gauge or absolute pressure measurement on a tank

5.13.7 Pressure or absolute pressure measurement of a

liquid in a pipe

— Place the tap at the side of the line.

— Mount the transmitter (both pressure and differential

pressure transmitters) beside or below the tap for clean

ﬂuids, above the tap for dirty ﬂuids.

— Connect the + (H) side of the transmitter to the pipe.

Figure 28: Gauge or absolute pressure measurement of a liquid in

a pipe

2600T Series Pressure transmitters | OI/266/WIHART-EN 25

5 Mounting

5.13.8 Pressure or absolute pressure measurement of a

condensable vapor in a pipe

— Place the tap at the side of the line.

— Mount the transmitter (both pressure and differential

pressure transmitter) below the tap.

— Connect the + (H) side of the transmitter to the pipe.

— Fill the vertical section of the connecting line to the tap

with a compatible liquid through the dedicated ﬁlling tee.

Figure 29: Gauge or absolute pressure measurement of

condensable vapor

5.13.9 Pressure or absolute pressure measurement of a

gas in a pipe

— Place the tap at the top or side of the line.

— Mount the transmitter (both pressure and differential

pressure transmitter) beside or above the tap.

— Connect the transmitter to the pipe.

Figure 30: Gauge or absolute pressure measurement of gas in a pipe

26 OI/266/WIHART-EN | 2600T Series Pressure transmitters

6 Transmitter connection

6.1 Network architecture

The picture above represents a generic wireless architecture. Dashed lines are temporarily wired connections.

Wireless devices can communicate both with wired or wireless tools. Wired tools can be: Asset Vision Basic 2 and Hand-held

terminal 3 (which has to run HART 7 protocol).

Field devices can communicate with Asset Vision Basic wirelessly through the Gateway connected via Ethernet TCP/IP 1.

The Gateway communicates to the DCS (Distributed Control System) via Modbus RS485 4.

6.2 Design and function

Wireless HART transmitters provide an FSK maintenance port too, compatible with existing tools such as modems and handheld

terminals with the purpose of conﬁguration and maintenance. Anyway, its main communication interface is wireless. The same

protocol is used to communicate with a wireless HART compatible gateway. The gateway provides different kinds of wired

interfaces and protocols such as RS-485 or Ethernet.

The transmitters can be conﬁgured, polled, and tested using a DTM or an EDD via both, the wired and the wireless interface.

DCS

HART 7

Ethernet TC/IP

Modbus RS485

Asset Vision Basic

HART modem

Hand-held terminal

Gateway

2600T Series Pressure transmitters | OI/266/WIHART-EN 27

6 Transmitter connection

Important.

HART hand-held communicator may be connected

at any termination point in the loop. No need of 250 ohms

resistance for communication purposes.

6.4 Supply requirement

Pressure transmitter power supply is granted by a 3.6V size ‘D’

battery. Standard supplied battery is a Lithium-thionyl chloride

cell certiﬁed for Hazardous Areas.

6.5 Powering the transmitter on

Follow these steps to power the transmitter on:

— Remove the temporary plastic cap from one of the two

electrical connection ports located at both sides in the

upper part of the transmitter housing.

— This connection port has a M20 threads. Dedicated plug

has to be ﬁtted to this port to comply with plant standards.

Important.

266 Pressure Transmitter is certiﬁed IP67. To

maintain the IP67 certiﬁcation rating, it is necessary to select

the dedicated plug.

— Remove the housing cover of the “ﬁeld terminals” side.

See the indication engraved on one side of the housing.

— Remove the battery pull-tab grabbing it ﬁrmly and pulling

it completely outside from its slot. This will allow the cell to

make contact with the electronic module.

Note.

266 WiPressure battery is manufactured by TADIRAN

Batteries GmbH (manufacturer code SL 2780)

— Before installing the huosing cover, check whether the

display is working or not. If yes, put back the housing

cover, turn it to seat O-ring into the housing and then

continue to hand tighten until the cover contacts the

housing metal-to-metal.

6.6 Protective Grounding

Pressure transmitter housing should be grounded or earthed in

accordance with national and local electrical codes. Ground

connection is mandatory for surge protector equipped devices

in order to ensure proper functioning.

Protective grounding terminals (PE) are available outside and/or

inside the housing of the transmitter. Both ground terminals are

electrically connected and it up to the user to decide which one

to use. The most effective transmitter case grounding method

is direct connection to earth ground with impedance equal or

less of 5 ohm.

6.3 HART

Figure 31: HART transmitter connection scheme

1 Handheld communicator | 2 External ground termination

point | 3 Battery | 4 Fast connection for harvesting unit

28 OI/266/WIHART-EN | 2600T Series Pressure transmitters

7 Commissioning

The write protection function can be performed as follows:

— Remove the ID (see ﬁgure 3 at chapter 4) by releasing the

holding screw lying on the bottom left corner.

— Turn ON device LCD (if installed) by pressing “Z” button and

check if the lock icon is displayed.

— Use a suitable screwdriver to press the switch down fully.

— Then turn the switch clockwise by 90°.

Important. To deactivate the switch, push it down slightly and then

turn counterclockwise by 90°.

Important. To activate or de-activate the Write Protection function,

instrument shall be live. To make instrument go live, press “Z”

button for two seconds and wait for the display to turn on.

7 Commissioning

Once the transmitter has been installed, it is put into operation

by enabling the battery. Check the following before switching

on the operating voltage:

— Process connections

— The impulse line/s and the measuring chamber of the

measuring equipment must be completely ﬁlled with the

measuring medium.

The transmitter can then be put into operation. To do this, the

shut-off valves must be actuated in the following sequence (in

the default setting, all valves are closed).

(Differential models) 266Dx

— Open the shut-off valves on the pressure tap connection

— Open the pressure equalization valve of the manifold.

— Open the positive shut-off valve (on the manifold)

— Open the negative shut-off valve (on the manifold)

— Close the pressure equalization valve.

To put the transmitter out of operation, carry out the steps in

reverse order.

(Gauge & Absolute models) 266Hx, 266Nx

— Open the shut-off valve on the pressure tap connection

— Open the positive shut-off valve.

To put the transmitter out of operation, carry out the steps in

reverse order.

Important. Please be aware that the measuring equipment will

have been overloaded by the atmospheric pressure due to the long

periods of transport and storage involved.

For this reason, you will need to allow a starting time of approx. 30

minutes for 266Nx models after commissioning, until the sensor

has stabilized to such an extent that the speciﬁed accuracy can be

maintained.

Only passive devices or indicators may be connected.

7.1 Standard setting for normal operation

In order to prevent errors in ﬂow rate measurements (266Dx) in

the lower range, it is possible to set a “cut off point” and/or a

“lin./sq. root transition point” via the optional LCD integral

displays with keypad or via external tools (DD ﬁle or DTM).

Unless otherwise speciﬁed, the “lin./sq. root transition point” is

set to 5% and the “cutoff” to 6% of the ﬂow rate end value by

the manufacturer.

7.2 Standard setting for error detection (alarm)

External tools (DD ﬁle on handheld terminal or DTM) or the LCD

integral display (if installed) can be used to diagnose the error.

Important. A brief interruption in the power supply results in

initialization of the electronics (program restarts).

7.3 Write Protection

Write protection prevents the conﬁguration data from being

overwritten by unauthorized users. If write protection is enabled,

the “Z” and “S” buttons are disabled. However, it is still possible

to read out the conﬁguration data using communication tools

such as DTM or DD ﬁle on an handheld terminal. The control unit

may be leaded if required.

Figure 32: Write-protection pushbutton

7.4 Correcting the lower range value / zero shift

During installation of the transmitter, transmitter, zero shifts

caused by mounting (e.g., a slightly oblique mounting position

due to a remote seal, etc.) may occur; these must be corrected.

Important. The transmitter must have reached its operating

temperature (approx. 5 min. after startup, if the transmitter has

already reached the ambient temperature) in order to perform zero

shift correction. The correction must be made at dp (or p) = 0.

7.5 Correct the zero shift

The zero shift caused by the installation can be cancelled in

different ways:

— By acting on the external push button “Z” with live

instrument to align the PV digital output.

— By using the optional LCD with keypad (“Configuration of

the pressure transmitter using the integral LCD HMI” for

further information).

To correct the zero shift using “Z” push button:

— Wake up the instrument by pressing “Z” push button for

at least 2 seconds, then release it

— The HMI should Turn ON (if installed)

— Now press the Z again for at least 2 seconds

— When it is released the PV digital output is zeroed.

2600T Series Pressure transmitters | OI/266/WIHART-EN 29

7 Commissioning

7.6 Joining the network

In order to allow the wireless communication between

transmitter and gateway the transmitter shall join the network

conﬁguring the relevant parameters Network ID and Join Key.

This initial basic setting can be done using:

— Asset Vision Basic via HART modem wired connected to

the device terminals

— Hand-held terminal wired connected to the device terminals

— The local HMI menu.

Usually 3 parameters should be set always during ﬁrst

commissioning to alow a device to join a network:

— Network-ID. The network-id is the identiﬁer of a network

and must be the same for all devices within the same

network including the gateway. There might be other

networks in parallel but they need to have a different

network-id. The network ID is a 16 bit wide number.

— Join-Key. The join key is important to authorize a device

joining the network. It serves for network security. The join

key can be the same for different networks. The join key is

a security relevant information and should protected as

such. Wireless HART allows individual join keys for the

wireless devices in the network what serves for higher

security but has also impact on maintenance effort. Not all

gateways may support individual join keys. The join key is

a set of four 32 bit wide numbers (128 bit in total).

— HART Long-TAG: This is human readable identiﬁer of the

device in the network and is almost used by a getway to

build a device list (“live list”) of the network. The HART

Long-TAG shall be unique for every device in the network.

Some gateways notify when doubled long TAGs are

identiﬁed. As the HART Long-TAG is 32 characters long it

is suitable to serve as a unique identiﬁer of a single device

in a whoile plant / installations and not just within the

wireless HART network. By default, 266 Pressure

Transmitters are delivered with a unique HART Long-TAG

containing part of the devices serial number and therefore

there is no need to set the HART Long-TAG. HART Long-

TAG is necessary for the communication via Ethernet TCP/

IP within the Asset Vision Basic projects

In case network ID and join key already match the settings of

the gateway e.g. due to prior conﬁguration or default settings

are used, there is no need for any further adjustments. 266

WirelessHART will join a reachable network automatically.

Important.

For security reasons the join key cannot be read

back from the device as well as via the local LCD display.

Check the completion of the joinig operation with the used

pc-tool or looking at the HMI. The operation in completed once

the antenna simbol in the right top corner is ﬁxed

Important.

To switch the HMI press for more than 2 second

the “Z” (zero) button. To reach the “Z” button, release the ﬁxing

screw of the identiﬁcation plate on the top of the instrument

housing.

7.7 Burst

7.7.1 Burst configuration

Once the device is in the newtwork the next step is to

configure the burst command. Optional burst communication

mode allows a single slave pressure transmiiter to continuously

broadcast a standard HART reply message at a certain,

defined, configured interval.

The operation can be done in in several ways:

— Wired

— Wireless

— Local display (HMI)

The device can be configured to send up to three bust

messages with interval between 2s and 60 minutes.

The configuarable message are the following HART commands

HART command Description

Command #1 Read Primary Variable

Command #2 Read P.V. Current and Percentage of Range

Command #3 Read Dynamic Variables and P.V. Current

Command #9 Read Device Variables with Status

Command #33 Read Device Variables

Command #48 Read Additional Transmitter Status

The burst mode can be set to trigger in differnet way

— Continuous: the burst message is published continuously

at the minimum update period.

— Window: the burst message is triggered when the source

value deviates more than the specific trigger value.

— Rising: the burst message is triggered when the source

value rises above the specified trigger value.

— Falling: the burst message is triggered when the source

value falls below the specified trigger value.

— On-change: the burst message is triggered when any

value in the message changes.

The message is normally sent at the configured update period.

Once the configured trigger conditions are sotisfied, the period

is set at the configured maximum update rate.

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7 Commissioning

7.7. 2 B ur st s t atus

The device supports up to three Burst communications. Each

burst can be individually conﬁgured and enabled (ON) or

disabled (OFF). Depending on its conﬁguration, each Burst

communication can have different possible Status that could be

helpful for detecting and evaluating possible critical or

anomalous situations between the gateway and the wireless

devices. If read from the wireless devices, some Burst Status

could give information about the wrong conﬁguration of the

gateway and/or the wireless device installed. Burst status is

readible via HMI (if installed) or via dedicated section of the DTM

(see Commissioning by DTM).

Burst status have the following structure:

“Bn: X-Y” where:

— Bn is the Burst number as B1, B2 or B3

— X-Y represent two possible channels in negotiation with

the Network Manager (Gateway) for each Burst. These

letters can assume different values:

“O” = OFF

the associated burst has not been enabled.

If the device has joined the network bursts can be

enabled wirelessly, through wired DTM or using an

handheld terminal. In case the device has not yet

joined, burst enabling can be done through the wires

of the HART protocol or exploiting the DD ﬁle

(handheld terminal)

“N” = Negotiating phase

the associated burst is in the negotiation phase with

network manager (gateway) that is reserving the

correct resources bandwidth, timings, etc.

“R” = Reject

the associated burst setting has been refused by the

network manager due to some possible conﬂicts i.e:

bandwidth limitation or requested burst update period

too short. In case this value appears, review the

update period.

Figure 34: Burst B2 in OFF-OFF status

Figure 33: Burst visualization into DTM

“S” = Shutdown

the associated burst is in the shutdown phase. The

network manager is deleting all the resources

previously reserved at this burst. Until the burst is in

this condition, it cannot be reconﬁgured.

“A” = Active

the associated burst is Active/running,In this condition

the associated Burst is transmitting the selected

HART command or status to the Gateway according

to the update period.

The Bursts will be OK only when X-Y are displayed with

“A” - “A” or “A” - “O”.

When the selected “Burst Trigger” is set to “Continuous” there

is only one channel to be negotiated with the Network Manager

and in this case the second letter is not relevant (value ﬁxed to

“O” - OFF). When the selected “Burst Trigger” is set to any

other event (Window, Rising, Falling or On-change), there are

two channels to be negotiated with the Network manager i.e.

one for the selected trigger event and the second for the

Maximum Update Period in case the trigger event never

occurs. In this case the X-Y represents the two channels. The

three bursts are displayed cyclically with an interval of 10

seconds.

7.7.3 Status byte

The Status byte is the ﬁfth byte of any out value and represents

the Quality of the variable. Depending by which of the two

selections is active, the list of the possible Status can be the

following:

— Classic Status

Binary

Code

Decimal

Code Meaning Possible Cause

0x08 8More Device

Status Available

E.g. faluire state.

Additional status command shall be

sent for more details.

0x40 64 Poor accuracy

E.g. value is beyond rated pressure,

temperature outside range.

Additional status command shall be

sent for more details.

0xB0 176 Manaul / Fixed

E.g. simulad value or forced.

Additional status command shall be

sent for more details.

0xC0 192 Good Out of Service

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7 Commissioning

7.8 Commissioning by EDD-based HART Handheld

Terminal

The handheld terminal will allow you to set all the relevant

information to let the 266 WiPressure join a WirelessHART

network.

— Ensure the EDD has been loaded into the HART handheld

terminal.

— Connect the HART handheld conﬁgurator to the

instrument via the HART maintenance port.

— Set the handheld terminal to polling (multidrop) mode and

scan for devices. The 266 WiPressure has a default polling

address 1 (has per HART speciﬁcation).

— Once connected you can edit the parameters and

conﬁguration data.

Important

An EDD describes structure and type of device

parameters but as only a limited inﬂuence on how this

information is provided to the user. The following is an

example of how the EDD could be represented. Even the

parameter names may be slightly different as tools typically

use vendor speciﬁc libraries.

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To commission 266 WiPressure using an EDD-based HART

handheld terminal, follow the below procedure:

1. Connect the handhel terminal to the 266 WiPressure and

select “Communication” and then go “Online”.

2. After polling, the handheld terminal will show basic device

information such as TAG number, Manufacturer ID, Device

ID, DD revision and Device revision.

Important. Set the handheld terminal to poll in multidrop or on

address 1. 266WiPressure has default address 1 as per

WirelessHART speciﬁcations.

3. Select “DD navigation” and then “Wireless Conﬁg.” to start

conﬁguring the instrument to join the network.

By using “DD navigation”, it is possible to edit instrument

measurement parameters as well as display etc. Please

refer to the next sub-chapter for information about 266

WiPressure DD structure.

5. To have 266WiPressure joining the network, there are

some parameters to set: Network ID and Join Key.

To reach these menus select “Network Settings” and then

“Network Setup”.

6. First point is Network ID. This parameter should be written

using hexadecimal numbering. After editing the default

value (0xABB), depress apply.

Important. Network ID can be conﬁgured according to customer

instructions at the factory.

2600T Series Pressure transmitters | OI/266/WIHART-EN 33

7 Commissioning

7. Join Key is the second, essential data to insert.

Join Key is string of 32 (thirty two) characters divided into

4 (four) groups of 8 (eight) characters each. The four

groups are to be written into the 4 different menu entries

in hexadeciamal notation and allowed characters goes

from 0 to 9 and from A to F (capital letters only).

Note. Join Key entry is shown just once for convenience. Enter Join

Key from Key 1 (HEX) to Key 4 (HEX).

Important. For security reasons, Join Key cannot be read back

from the handheld terminal.

8. Select “Join Mode” (usually “Join Now”) and depress

“Apply”. With this operation, alll network parameters will

be sent to 266 WiPressure.

Note. Some handhelds or computer based tools require the Join

Key to be entered in decimal.

9. By selecting “Join Status” the handheld terminal will show

the progress of all actions necessary to have the 266

WiPressure joining the network and communicating with

the Network Manager (gateway).

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7 Commissioning

7.8.1 EDD structure for 266 WiPressure

Device information

Device

Manufactorer

Model

Device Serial No

Device revision

HART Revision

Device Proﬁle

Additional Device Revision

Hardware Revision

Software Revision

Measurement Point

Address

Write Protection

Communication tag

Date

Final Assembly Num

Descriptor

Message

Additional information

Long tag

Sensor type

Sensor revision

Read Sensor Sl number

Detailed Setup

General

Local Operations

Sensor Set-up

P-dP Sensor

Sensor Type

Upper Sensor Limit

Lower Sensor Limit

Minimum span

Static Pressure Sensor

Upper Sensor Limit

Lower Sensor Limit

Minimum span

Operational limit

Max Temperature limit

Min Temperature limit

Max Working Pressure

Unit

Temperature Unit

Static Pressure unit

Pressure Polarity

Pressure input [Direct]

Sensor materials

Basic Sensor materials

Diaphragm material

Filling Fluid

Process Connection High

Connection type

Flange Material

O-Ring Material

Blanking Plug

Process Connection Low

Connection type

Flange Material

O-Ring Material

Blanking Plug

P-dP

Process variable

Measured value

PdP Value

PV % range

Scaling

Value Input

Unit

PV LRV

PV URV

Process Pressure

Rerange

PV Bias

PdP Value

Set PV Val

Set PV to Zero

Bias Value

PV Bias Reset

Parallel Shift

Transfer Function

Square Root Setting

Lin.Square root Point [%]

Cut Off

Output

Scaling

Unit

Custom Unit

Lower range Value

Upper range Value

Hart Mapping

PV is

SV is

TV is

QV is

Change SV mapping

Change TV mapping

Change QV mapping

Display

General

Display Revision

Contrast

Language

Display Setting

Display Mode

Line 1 view

Line 2 view

Bargraph view

2600T Series Pressure transmitters | OI/266/WIHART-EN 35

7 Commissioning

Wireless Conﬁg

Network Settings

Network setup

Network ID (HEX)

Key 1 (HEX)

Key 2 (HEX)

Key 3 (HEX)

Key 4 (HEX)

Join Mode

Join Status

Burst Conﬁguration

Burst Message 1

Burst Mode

Burst command

Burst Msg Trigger Mode

Update period for burst message

Change Burst Conﬁg

Burst Message 2

Burst Mode

Burst command

Device Variables

Burst Msg Trigger Mode

Update period for burst message

Change Burst Conﬁg

Burst Message 3

Burst Mode

Burst command

Device Variables

Burst Msg Trigger Mode

Update period for burst message

Change Burst

Calibration

Pressure Sensor

Cal pressure

Full trim

Zero trim

Sensor temperature value

Sensor temperature trimming

Static Pressure

StaticPr Value

Zero trim

Low trim

Simulation

PdP Value

StaticPr value

Sensor Temp value

ScaledOut Value

Simulation

Process Variable

PdP Value

PdPstatus

StaticPr Value

StaticPr Status

sensorTemp value

sensorTemp status

scaledOut Value

scaledOut status

Diagnostics

Device Status

Diagnostics monitoring

Diag Simulation enable

Electronics

Sensor/Actuators

Installation/Start up

Process

Operating conditions

Wireless

Simulation

Diag Simulation Enable

Conﬁguration

Electronics

Operating conditions

Sensor/Actuators

Process

Historic Info

Device

No. Power On

Total working time

Pressure variable logging

Min.Pressure value

Max.Pressure value

Reset

Sensor temperature logging

Min. temperature value

Max. temperature value

Reset

Static pressure logging

Min.Static Pressure value

Max.static Pressure value

Reset

Neighbor details

Wireless status

Wireless Mode

Join Retry timer

Join status

Neighbor count

Burst Status

Burst 1 status

Update rate service

Max Update rate service

Burst 2 status

Update rate service

Max Update rate service

Burst 3 status

Update rate service

Max Update rate service

Extras

Resets

Load Factory Settings

Lock/Unlock Device

Start Squawk

Note. Some entries may not be available due to instrument

conﬁguration (i.e. static pressure entries not implemented for gauge

or absolute pressure transmitters).

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7 Commissioning

7.9 Commissioning by DTM

The 266WiPressure DTM gives access to all parameters and

information relevant to communication and device

commissioning. Once the device is taken into the wireless

network by the gateway the DTM can be used with the wired

but also with the wireless interface, depending of the

capabilities of FDT frame application and gateway.

Typically the connection to the gateway is via Ethernet. This

allows a remote access to the wireless HART network and the

266 WiPressure over intranet or Ethernet, depending on the

network policies. Components and tools provided or

recommended by ABB do not have limitation regarding the

communication interface.

Usually the network ID and join key needs to be set to allow a

wireless device to enter an existing network. The join key and

the network ID are also set in the gateway and must be the

same as that entered in the 266 WiPressure.

The following description assumes the device needs a change

of network parameters to join a network.

The DTM will have to be connected via a wired interface to the

266 WiPressure. After searching for the device and getting into

online mode the dialog Network Settings should be opened:

The sequence of the adjustments is as the position of the

parameters with the DTM dialog:

1. Network ID to be set in decimal notation within the DTM.

2. Join key to be set in hexadecimal notation

3. Join mode. Usually the option “Join now” is most suitable

to let the device enter the (new) network after download all

parameters described above.

The data on the bottom of the dialog gives status information

about the process of network join. Whenever a wireless HART

network is in the range of 266 WiPressure – even it does not

match its own network parameters - the “Wireless signal

found” ﬂag is set. This is a pre-condition to join a network. The

266 WiPressure now tries to join the network and to establish a

connection to the wireless HART gateway.

A successful join phase is indicated by the “Join complete” ﬂag

at the end. Depending of the network structure, size and

performance of wireless HART gateway and other devices in

the network it may take up to 60 minutes.

Important.

Some gateways need to switch on the “Active

Advertising” in order to support devices to join the network.

7.9.1 Network Diagnostics by DTM

One of the strengths of wireless HART networks is the

capability to automatically build a robust meshed structure. So

the wireless devices try to connect to neighbours in order to

get multiple paths for any telegram.

Powerful network diagnostics of 266 WiPressure automatically

checks the network transmission quality to and from the device

itself.DTM gives visibility about signal strenght for at maximum

ﬁve neighbour devices showing their speciﬁc link.

Signal strength is returned as a computed value which includes

signal level, retries required etc.

Important.

In a proper and robust network, each wireless

device should have at least three neighbours.

Figure 35: Burst B2 in OFF-OFF status

2600T Series Pressure transmitters | OI/266/WIHART-EN 37

8 Operation

8.1 Local push buttons functionality

266 transmitters allow local adjustments via the on-board non

intrusive push buttons, when selected. The push buttons are

located under the identification nameplate. To gain access to

the local adjustments release the fixing screws of the

nameplate and rotate clockwise the identification plate.

Warning - Potential damage to parts. Operating the control

buttons with a magnetic screwdriver is not permitted.

11 - Identiﬁcation nameplate

2 - Zero pushbutton

3 - Span pushbutton

4 - Write-protection

pushbutton

Figure 36: Pushbutton functionalities

8.2 Factory settings

Transmitters are calibrated at the factory to the customer’s

specified measuring range. The calibrated range is provided

on the name plate whereas the tag number on the additional

tag plate. The calibrated range and tag number are provided

on the name plate. If this data has not been specified, the

transmitter will be delivered with the following configuration:

Parameter Factory setting

Lower Range Value (LRV) Zero

Upper Range Value (URV) Upper Range Limit (URL)

Output transfer function Linear

Optional LCD HMI scale 1 line PV and output signal bargraph

Network ID HEX (DEC) 0XABB (2747)

Join Key HEX

57495245

4C455353

4649454C

444B4559

Important. Every of the conﬁgurable parameters here on the left can

easily be modiﬁed either via the optional LCD HMI, with an HART

handheld terminal or a compatible software solution. Information

regarding ﬂange type and material, O-ring materials, and ﬁlling liquid

type is stored inside the non-volatile memory of the device.

8.3 Configuration types

Pressure transmitters can be conﬁgured as follows:

— via Zero and Span push buttons (LRV and URV).

— using the integral LCD HMI with keypad (menu-controlled)

— with a handheld terminal

— using a PC/laptop via the graphical user interface (DTM)

8.4 Configuring the transmitter without an integral

LCD HMI

The “lower range value” and “span” parameters can be set

directly on the transmitter using the external push buttons.

The transmitter has been calibrated by the manufacturer based

on the order information. The tag plate contains information on

the “lower range value” and “upper range value” set. In general,

the following applies:

To change the transmitter ranging apply the pressure for the

“lower range value” and “upper range value” to the measuring

equipment. Make sure that the measuring limits are not

exceeded.

Important. Reducing station with adjustable pressure and

reference displays can be used as pressure generators.

When making the connection, please ensure that there are no

residual ﬂuids (for gaseous testing materials) or air bubbles (for ﬂuid

testing materials) in the impulse lines, since these can lead to errors

during inspection. Any potential measuring error for the pressure

generator should be at least three times smaller than the desired

measuring error for the transmitter.

Important. In case of the 266 transmitter for absolute pressure

(266Nx) with a measuring range less than or equal 650 mbar abs.,

please be aware that the measuring equipment will have been

overloaded by the atmospheric pressure due to the long periods of

transport and storage involved. For this reason, you will need to

allow a starting time of approx. 30 minutes for 266Nx model, until

the sensor has stabilized to such an extent that the speciﬁed

accuracy can be maintained.

8.5 LRV and URV configuration

— Apply the pressure for the “lower range value” and wait

approx. 30 s until it has stabilized.

— Press the “Z” button to wake the instrument up and then

keep “Z” button pressed in order to assign the LRV.

— Apply the pressure for the “upper range value” and wait

approx. 30 s until it has stabilized.

— Press the “S” button to assign the URV.

— Record the new settings. The respective parameter will be

stored in the non-volatile memory 10 seconds after the “Z”

or “S” buttons are last pressed.

Important. This conﬁguration procedure does not affect the

physical process pressure (PV value) also shown on the digital

display or user interface. To avoid potential discrepancies, you can

use follow the procedure below. After performing a correction, you

must check the device conﬁguration.

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8.6 Configuration of the pressure transmitter using

the optional integral LCD HMI with keypad (menu-

controlled)

The integral LCD HMI is connected on the 266 communication

board. It can be used to visualize the process measured

variables as well as to conﬁgure the display and the transmitter.

In addition, diagnostic information is provided. To access the

functionality of the HMI an activation procedure needs to be

carried out. The keypad activation procedure is different

between the TTG (Trough The Glass) version and the

conventional HMI.

Figure 37: Display keypad

The keys (1) , (4) , (2) and (3) are available for the

menu-controlled conﬁguration.

— The menu / submenu name is displayed above in the LCD

display.

— The number/line of the currently selected menu item is

displayed in the upper right of the LCD display.

— A scroll bar is located on the right edge of the LCD

display which shows the relative position of the currently

selected menu item within the menu.

— Both of the keys (1) and (4) can have various

functions.

The meaning of these buttons is displayed below in the

LCD display above the respective button.

— You can browse through the menu or select a number

within a parameter value using both keys (2)

and (3) . The button (4) selects the desired menu

item.

Button (1) functionalities Meaning

Exit Exit menu

Back Back one submenu

Cancel Exit without saving the selected parameter

value

Next Select next position for entering numerical

values or letters

Button (4) functionalities Meaning

Select Select submenu/parameter

Edit Edit parameter

Ok Save selected parameter and display

stored parameter value

8.7 HMI as feedback of the local push button

operations

As consequence of the operations described in the section 8.2,

when the Z or S buttons are released, the feedback of the

executed operation is displayed in the bottom of the LCD

(same position as per diagnostic messages):

Message Description

! Oper Done The push button operation has been successfully executed

! Proc Too

Low

The Pressure measured in input is too low and not

acceptable for the requested operation

! Proc Too

High

The Pressure measured in input is too high and not

acceptable for the requested operation

! New URV

Error

The Zero (Z) operation cannot be accepted because the

URV would be shifted outside the Upper Sensor limit

! Span Error

The Span (S) operation cannot be accepted because the

new URV would be too close to the LRV and their

difference lower than the Minimum Span value

! Oper

Disabled

The push button operation has been refused because the

Write Protection is enabled.

! LRV Too

Low

New LRV is too low and not acceptable for the requested

operation

LRV Too

High

New LRV is high low and not acceptable for the requested

operation

URV Too

Low

New URV is too low and not acceptable for the requested

operation

URV Too

High

New URV is high low and not acceptable for the requested

operation

Armed

Device is armed to accept HART command 73 “Find

Device”. This message can be triggered only during the

device wakeup operation

8.8 HMI menu structure

The HMI menu is divided in the following sections which can be

selected by acting on the keys (2) and (3) , once on the

display the desired sub-menu icon will be visualized, conﬁrm

your selection with the [SELECT] key (4) .

Follow the instruction on the screen to perform the

conﬁguration of the different parameters.

2600T Series Pressure transmitters | OI/266/WIHART-EN 39

8 Operation

This menu allows the veriﬁcation and the parameterization of

the basic conﬁguration of the 266 pressure transmitter. The

menu driven structure will guide you to the setting of Join Key,

Network ID and tag number. Moreover, display language,

engineering units, URV/LRV and transfer function (linear or

square root) can be deﬁned inside this menu.

This menu allows the veriﬁcation and the parameterization of the

entire device The menu driven structure includes the write

protection enabling, process variable settings (unit, LRV and URV),

transfer function selection (linearization type and low ﬂow cut-off)

and output scaling (unit according to the measurement and LRV/

URV). The last selectable sub-menu allows user to reset all the

parameters to the default conﬁguration.

This menu allows the set-up of different functions relevant to

the display itself. The menu driven structure will guide you

through the choice of some functional aspects as the display

language and contrast. Moreover, it is possible to choose in

details what you want to see on the display: one or two lines

with or without bargraph. Inside this menu there is the

possibility of setting a protection password (security) and the

display scaling (linearization type, unit, LRV, URV). Display

revision number available.

This menu allows the local calibration of the instrument. The

menu driven structure will guide you through the choice of

pressure sensor trimming (low or high), and at the end you can

reset these parameters (to factory sensor trimming, to user

sensor trimming).

This menu allows you to monitor diagnostics messages related

to pressure variable, output current, output percentage, scaled

output, static and sensor pressure. The menu driven structure

will also guide you through the loop test.

This menu gives you all information about the device. The menu

driven structure will show you what is the sensor type, the

hardware and software revisions, the high and low sensor limits

as well as the minimum applicable span.

The last section of this structured and driven menu gives you

the possibility ofparametrizing communication-related values

such as Tag, HART long Tag, Network ID and Join Key.

40 OI/266/WIHART-EN | 2600T Series Pressure transmitters

8 Operation

8.8.1 Easy Set-up

Press key (4) and select the language. After

entering the settings, press key (1) to move to

the next menu item.

Once in the alphabetic menu use Next (1) key

to position the cursor on the character that

you want to change. Scroll the character list

with (2) + (3), once on the selected one press

“next” key (1) once completed press “ok” (4).

Press the (4) key Scroll the eng. units list with

(2) + (3) and select with (4) key. Press the (1)

key to move to the next menu item.

Press the (4) key and set LRV value.

After entering the settings, press the (1) key

to move to the next menu item.

Press the (4) key and set LRV value.

After entering the settings, press the (1) key

to move to the next menu item.

Press the (4) key and select the transfer

function from the list with (2) + (3).

After entering the settings, press the “ok” (1)

key to move to the next menu item.

This function set to zero the PV value. Simply

press “ok” (4) key to activate the PV to zero

function. Press Next (1) key to move to the

next menu item.

This function allows the selection of the LCD

visualization. Select between the list and

conﬁrm with “ok” (1) key.

In the conﬁguration level, use the (2)

+ (3) keys to scroll to the “Easy Set-

up” menu item and select it by

pressing the (4) key.

2600T Series Pressure transmitters | OI/266/WIHART-EN 41

8 Operation

8.8.2 Device Set-up

42 OI/266/WIHART-EN | 2600T Series Pressure transmitters

8 Operation

2600T Series Pressure transmitters | OI/266/WIHART-EN 43

8 Operation

44 OI/266/WIHART-EN | 2600T Series Pressure transmitters

8 Operation

2600T Series Pressure transmitters | OI/266/WIHART-EN 45

8 Operation

8.8.3 Display

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2600T Series Pressure transmitters | OI/266/WIHART-EN 47

8 Operation

48 OI/266/WIHART-EN | 2600T Series Pressure transmitters

8 Operation

8.8.4 Calibrate

2600T Series Pressure transmitters | OI/266/WIHART-EN 49

8 Operation

8.8.5 Diagnostics

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8 Operation

8.8.6 Device Info

2600T Series Pressure transmitters | OI/266/WIHART-EN 51

8 Operation

8.8.7 Communication

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8 Operation

2600T Series Pressure transmitters | OI/266/WIHART-EN 53

8 Operation

8.9 Transfer function

The 266 Pressure Transmitter provides a selection of output

functions, as follows:

— Linear for differential, gauge and absolute pressure or level

measurements

— Sq. Root (x) for ﬂow measurements using restriction type

primary element, like oriﬁce plate, integral oriﬁce, Venturi or

Dall tube and similar.

— Sq. Root (x3) for open channel ﬂow measurements using

rectangular or trapezoidal weir

— Sq. Root (x5) for open channel ﬂow measurements using

V-notch (triangular) weir.

— Bidirectional Flow

— Custom linearization table

— Cylindrical lying tank

— Spherical tank

These output functions can be activated using a Conﬁguration

Tool (Digital LCD Integral Display, Hand Held Communicator or

PC based software as Asset Vision Basic).

8.12.1 Linear

Using this function, the relationship between the input

(measured value), expressed in % of the calibrated span and

the output is linear (i.e.: at 0% input, corresponds 0% output).

No further settings are possible here.

Figure 38: Linear output

8.9.2 Square root

Using the Square Root function, the output (in % of the span) is

proportional to the square root of the input signal in percentage

of the calibrated span.

The possibility to have the full Square Root function is given.

To avoid the extremely high gain error with the input approaching

zero, the transmitter output is linear with the input up with a

slope of 1 up to 0.5% and then still linear with the appropriated

slope to a programmable percentage value between 10 % and

20%. This option is offer in order to ensure a more stable output

when the signal is close to zero avoiding errors due to the high

gain of the square root.

To neglect the values with the input approaching zero, the

transmitter output is zero with the input up to a programmable

percentage value between 0 % and 20%. This option is offer in

order to ensure a more stable ﬂow measure. This option is

possible for all the listed output functions. ).

Figure 39: Square-Root transfer functions

54 OI/266/WIHART-EN | 2600T Series Pressure transmitters

8 Operation

Figure 40: Tanks (respectively rectangula weir, trapezoidal weir and

V-notch weir)

8.9.4 Square root to the 5th power

The x5 Square root Transfer function can be used for open

channel ﬂow measurement using ISO 1438 Vnotch (triangular)

weirs (see ﬁgure on the right) where the relationship between

the ﬂow and the developed head h (the differential pressure

measured by the transmitter) is proportional to h5/2 or square

root of h5.

Using this function, the output (in % of the span) is proportional

to the square root of the ﬁfth power of the input signal in % of

the calibrated span: the instrument (it gives an output

proportional to the rate of ﬂow calculated using the Kingsvater-

Shen formula).

8.9.3 Square root to the 3rd power

The x3 Square root Transfer function can be used for open

channel (see ﬁgures on the right) ﬂow measurement using ISO

1438 rectangular weirs (Hamilton Smith, Kindsvater-Carter,

Rehbock formulas) or trapezoidal weirs (Cippoletti formulas) and

ISO 1438 Venturi ﬂumes. In these types of devices the relationship

between the ﬂow and the developed head h (the differential

pressure measured by the transmitter) is proportional to h3/2 or

square root of h3.

Other types of Venturi or Parshall ﬂume do not follow this

relationship. Using this function, the output is proportional to the

square root of the third power of the input signal in % of the

calibrated span: the instrument gives an output proportional to the

rate of ﬂow calculated using the above mentioned formulas.

8.9.5 Custom linearization curve

The custom linearization curve transfer function it is used

typically for volumetric level measurement in tanks with an

irregular shape. It can be registered to a freely identiﬁable

transfer function with a maximum of 22 base points. The ﬁrst

point is always the zero point, the last is always the ﬁnal value.

Neither of these points can be altered.

A maximum of 20 points can be freely entered in between.

These points have to be deﬁned by extrapolating the tank ﬁlling

table data and reducing them to 22 points.Once identiﬁed the

22 points they will need to be uploaded into the device by

either using an HART hand held terminal or a proper

conﬁguration software like Asset Vision Basic.

8.9.6 Bidirectional Flow (to be used when the transmitter

is connected to a bidirectional flow element)

The bidirectional function, applied to the transmitter input (x)

expressed in percentage of the calibrated span, has the

following form:

Output = ½ + ½ sign (x) ∙ x ½

where “x” and “Output” should be normalized in the range 0 to

1 for calculation purpose, with the following Output meaning:

— Output = 0

— Output = 1

This function can be used for ﬂow measurement purpose when

the ﬂow is in both the directions and the primary elements are

designed to perform this type of measure.

As an example, if we have a bidirectional ﬂow measurement

application with the following data:

Max reverse ﬂow rate: -100 l/h

Max ﬂow rate: +100 l/h

The differential pressure generated by the ﬂow primary is for the

maximum ﬂow rate 2500 mmH2O, for the max reverse ﬂow rate

2500 mmH2O.

The transmitter will have to be conﬁgured as follows:

Calibrated span: LRV = -2500mmH2O

URV = +2500mmH2O

Transfer function: Bidirectional ﬂow

2600T Series Pressure transmitters | OI/266/WIHART-EN 55

8 Operation

8.9.7 Cylindric lying tank

This function is used to measure the volumetric level into a

cylindrical horizontal tank with ﬂat ends.

The transmitter calculates the volume from the measured ﬁlling

level.

8.9.8 Spherical Tank

This function is used to measure the volumetric level into a

spherical tank.

The transmitter calculates the volume from the measured ﬁlling

level.

8.10 Configuration with the PC/laptop or handheld

terminal

A graphical user interface (DTM) is required for conﬁguration of

the transmitter via PC or laptop. For operating instructions,

please refer to the software description.

The 266 transmitters can be conﬁgured by either one of the

following device.

— Hand Held terminals like the ABB DHH805, Emerson

Process 375 and 475 provided the 266 EDD has been

downloaded and enabled in the terminal.

— ABB Asset Vision Basic, a new free of charge software

conﬁgurator downloadable at www.abb.com/

Instrumentation

— Any DTM based software for HART instruments

conﬁguration provided it is compatible with EDD or DTM.

You can use a handheld terminal to read out or conﬁgure/

calibrate the transmitter.

For additional information, refer to the operating instructions

included with the handheld terminal.

If the transmitter has been conﬁgured in the factory according

to customer speciﬁcations for the measuring point, all you have

to do is mount the transmitter as prescribed (to correct

potential zero shifts, refer to the section “Correcting the zero

shift”), and switch it on. The measuring point will now be ready

for use.

If, however, you wish to make changes to the conﬁguration, a

handheld terminal or - preferably - a graphical user interface

(DTM) is required. This DTM tool renders the device fully

conﬁgurable. It supports the HART protocol and and can be

run on a PC or laptop, or as part of an automation system.

Refer to the installation manual provided with the software for

the steps required to install the operating tool. The most

important parameters can be set via the path “Parametrize_

Differential Pressure Measurement”.

The program offers the option of conﬁguring, polling, and

testing the transmitter.

In addition, ofﬂine conﬁguration can be performed by means of

an internal database.

Each conﬁguration step is subject to a plausibility check. You

can call up context-sensitive help at any time by pressing the

“F1” key. Immediately after you have received the transmitter or

before you change the conﬁguration, we recommend that you

save the existing conﬁguration data to a separate data storage

medium, via the path “File_Save”.

8.11 Configuration with the graphical user interface

(DTM) - System requirements

— Operating control program (e.g., ABB Asset Vision Basic

version 1.00.17 or higher)

— DTM (Device Type Manager; graphical user interface)

— Operating system (depending on the respective control

program)

To operate the Asset Vision Basic please refer to the relevant

operating instruction.

56 OI/266/WIHART-EN | 2600T Series Pressure transmitters

9 Troubleshooting

9.1 Overview

This section provides troubleshooting suggestions for the most

common problems occuring in the ﬁeld.

Important.

Procedures described in the following paragraphs

will help the user to verify that 266 pressure transmitter and

wireless communication network are correctly in place.

9.2 Device-related issues

9.2.1 Device does not power on

When the user receives a 266 WirelessHART pressure

transmitter, the ﬁrst step to be taken is to power the device on.

After removing the battery pull-tab grabbing it ﬁrmly and pulling

the cell will give power supply to the electronic module LCD

display will go live for 30 seconds and then it will go off.

If this doesn’t happen the possible cause could be:

Possible cause Solution

Battery discharged Change the battery (spare part number

DR3051)

Display or battery not well

connected

Check HMI contacts or invert battery position

into the terminal block

Terminal block defect Check battery and terminal blocks contacts

In case the device is not powering, please check if the battery

is still in good conditions and it has not been exposed to high

temperatures for long periods of time. To install a new battery,

please follow below instructions

1. Install 266 WirelessHART pressure transmitter properly,

according to ABB practices explained in the present

document using an approved thread sealant on all

connections.

2. Unscrew the battery cover from the wireless device.

Battery lays on the opposite side of the display (if installed)

as indicated by the writing “Field Terminals” engraved on

housing neck.

3. Remove and replace the battery paying attention to the

polarity.

Note. Wireless devices should be powered up only during the

network setup and beginning with the closest device to the

Gateway. This will result in a simpler and faster network installation.

For further information about the battery, please refer to paragraph

6.6 of this document.

4. Close the housing cover so as to have a metal-to-metal

contact but do not over tighten. If the installation of the

battery as been properly performed, the LCD display will

go live for 30 seconds and then it will go off.

Important. Battery part number is DR3051. To get spares batteries,

please get in touch with your local ABB service reference.

Replacements with non-ABB batteries is forbidden and will lead to

certiﬁcation invalidity.

9.3 Network-related issues

9.3.1 General

Network joining could represent a critical point for a wireless

transmitter.

Basic preliminary setting for joining consists in writing two

parameters both into the device and into the Gateway. These

parameters are:

— Network ID

— Join Key

Important.

Network ID and Join Key are to be always the

same both on ﬁeld instrument and Gateway.

It is also necessary to write the LONG TAG for communication

via Ethernet TCP/IP within the Asset Vision Basic projects.

The above-mentioned parameters can be set using:

— Asset Vision Basic wired to device dedicated terminals

through a HART modem.

— Hand-held terminal wired to device dedicated terminals

— Local HMI menu

9.3.2 Device does not join the network

After the basic settings have been correctly executed, a typical

anomalous situation is that the device does not join to the

wireless network.

Network is joined when the radio signal icon is steady

visible on the upper right-hand corner of the HMI (if installed).

Possible cause Solution

Power supply is missing

Access the “Z” button and depress it for few

seconds until the display goes live. If this will

not happen, see section 9.2.1

Anyway, device will more likely not join the network due to a

radio signal failure. Radio failure can be identiﬁed thanks to the

above-mentioned icon.

2600T Series Pressure transmitters | OI/266/WIHART-EN 57

9 Troubleshooting

Icon appearance Cuase and suggested actions

Icon is not visible

Serious radio failure

Check if there is a Radio Failure diagnostic

“ON”:

— using HART wired connection in

combination with Asset Vision Basic /

DTM

— access diagnostics using an Hand-held

Terminal

— visualize the internal diagnosis menu of

HMI by depressing the navigation

button on the bottom left-hand corner.

Icon is blinking

The device is trying to join and/or the joining

process is in progress. Normally the joining

process takes some time (up to 30 minutes).

If the icon keeps on blinking after this period

of time, please check if:

— Network ID and Join Key are properly

set.

— Long TAG is unique and different from

the network one.

— Wireless device has previously joined

the network with another Long TAG.

— Power cycle the pressure transmitter

and re-try.

— Verify whether the Network Manager is

in “advertise” mode

9.3.3 Burst troubleshooting

Burst communication mode allows a single slave pressure

transmiiter to continuously broadcast a standard HART reply

message at a certain, defined, configured interval. Details

about all possible with relating descriptions and corrective

actions will be reported in the following table.

X Y Description

O O Both services are OFF

N O Triggered service is OFF

A O Main service is active. Triggered service is OFF

S O Main service is shutting down. Triggered service is OFF

R O

Main service has been rejected. Triggered service is OFF

Possible causes and suggested actions:

— Timeout. Wait some minutes and retry

— Network Manager (gateway) stopped this operation due

to a conflict with another operation in progress. Wait

some minutes and retry.

— Network Manager (gateway) stopped this operation due

to unavailable bandwidth. Wait some minutes and retry

and/or slow down burst frequency to reduce band

allocation.

O N NOT ALLOWED

N N Both services under negotiation.

A N Main service active. Triggered service under negotiation.

S N NOT ALLOWED

R N

Main service has been rejected. Triggered service is under

negotiation. Burst is not active.

When the triggered service ends (regardless from the

outcome), it is necessary to wait some minutes and re-try. If

nothing changes, please slow down the update rate of the

rejected service.

O A NOT ALLOWED

N A NOT ALLOWED

A A Both services are active

S A NOT ALLOWED

R A

Main service has been rejected. Triggered service is active.

Burst is not active.

When the triggered service ends (regardless from the

outcome), it is necessary to wait some minutes and re-try. If

nothing changes, please slow down the update rate of the

rejected service.

O S Main service is OFF. Triggered service is shutting down.

N S Main service under negatiation. Triggered service is shutting

down

A S Main service is active. Triggered service is shutting down.

S S Both services are shutting down.

R S NOT ALLOWED

O R NOT ALLOWED

N R NOT ALLOWED

A R

Main service is active. Triggered service rejected. Burst is not

active.

When the triggered service ends (regardless from the

outcome), it is necessary to wait some minutes and re-try. If

nothing changes, please slow down the update rate of the

rejected service.

S R NOT ALLOWED

R R

Both services have been rejected. Burst is not active.

When the triggered service ends (regardless from the

outcome), it is necessary to wait some minutes and re-try. If

nothing changes, please slow down the update rate of the

rejected service.

58 OI/266/WIHART-EN | 2600T Series Pressure transmitters

9 Troubleshooting

9.4 HMI as diagnostic indicator

While the HMI works as Variable Indicator, also diagnostic

strings can be displayed. Whenever a failure or warning

condition is detected within the transmitter, a message appears

in the low side of the display below the bar-graph. The

message is formed by the NAMUR NE107 icon and the string

of the component where the problem occurred.

NAMUR

icons Description

Error / Failure

Functional check (e.g. during simulation )

Out of Spec (e.g. Sensor temperature outside the specs limits)

Maintenance required

Figure 42: Example of “Maintenance / Sensor” and “Failure /

Electronics” diagnostic

Detailed diagnostic info from HMI

When the above kind of diagnostic information is displayed,

from the HMI it is also possible to see the details.

1. Press the center navigation keys for 4 seconds until two

special icons appear on the bottom corners of the display

Important. This step is necessary only for the keypad activation of

TTG HMI type. For conventional HMI start from step 2.

2. Press the left navigation key

3. The HMI enter in the special menu with three items:

Diagnostics

Operator View 1

Signals View

4. Select “Diagnostics” and the list of all the active error

conditions appears with on top the worst condition.

The format of how the detailed diagnostic info are displayed is

“XA.BBB” where:

X = NAMUR NE107

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