Sensus Metering Systems MXU505C Utulity Meter Reader User Manual Trouble shooting manual

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Document ID	221687
Application ID	xrp+Z5a/hUKROIw7T1WoSw==
Document Description	Trouble shooting manual
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	11.67kB (145826 bits)
Date Submitted	2002-01-21 00:00:00
Date Available	2002-01-21 00:00:00
Creation Date	2002-01-14 09:20:55
Document Lastmod	2002-01-14 09:20:55
Document Title	Trouble shooting manual

Meter Transceiver Unit (MXU)
|nvensys
Metering Systems
The following information is a guide to troubleshooting a suspected
malfunctioning meter transceiver unit (MXU). Review these procedures
prior to returning an MXU for evaluation.
This is a general guide for troubleshooting an MXU. For MXU installa-
tion procedures, please refer to installation bulletin AMR-QYO as most
recently revised.
The following should be available when. troubleshooting an MXU:
O SRll® security screw socket with 1/4 inch nut driver or
ratchet wrench
0 3M Scotchlok® UY or UY2 butt connector “gel-caps”
0 3M Scotchlok® E-9Y stepped jaw crimping tool with wire cutter
O MXU interrogation device (RFSSI with MXU Programmer
application loaded, or VXU)
o A functioning lnvensys absolute encoder (“test’ encoder)
0 Extra MXU battery pack(s)
0 Extra MXU(s)
0 Voltmeter (optional)
if you find an MXU to be inoperable after being installed, please follow the
troubleshooting steps below. Perform these steps at the installation site.
First, ensure that the MXU is no closer than 4 feet to the next MXU.
MXUs must be installed at least 4 feet apart to minimize the effects of RF
interference between devices. Where such a configuration is needed, a
model 505 (and MultiRead Module if necessary) is recommended. If the
MXU is not within four feet of the next device proceed to Step 1.
1. If using STRIPES software with a VXU, change the reading cycle
by selecting Routellllanager and Edit CIassiCycle. The reading
cycle is used to disable MXUs that have already been read during
the current cycle from being interrogated a second time. A value of
“0” is a “universal” cycle that forces all units to respond. The cycle
range is from 0 to 255. MXUs are shipped with the following default:
Cycle = “0”. After changing the cycle attempt to read. If the MXU
fails to respond proceed to Step 2.
2. Using an RFSSI or a VXU, reset the proper MXU port (Model 505
only), class, and password settings by reprogramming the MXU. If
using an RFSSI, refer to Invensys SSI Programming User's Man-
ual (AMR-986). If using a VXU, select Configuration, VXU & MXU
Parameters, Program MXU.
Port options include: invensys ECR; Not Used; MuitiRead; or ARB
Vl (Schlumberger ProRead Encoder). MXUs are shipped with the
following default settings: Port 1 - Invensys ECFt and Port 2 - Not
Used. Select the proper port settings.
Class codes are used to identify a group of MXLIs, By identifying a
group of MXUs with a class code, the user can interrogate a spe-
cific group of devices. MXUs that have a different class code will
not respond to the interrogation unit. The class code range is from
0 to 31. MXUs are shipped with the following default: Class code =
“0”. Select the proper class code.
Password codes are used to identify all of a utility's MXUs. Typi-
caliy each utility assigns the same password to all its devices.
AM R-309-R3
10l2
TROUBLESHOOTING GUIDE
Other utilities in the same region would presumably have a different
password to prevent the interrogation unit of one utility from reading
the MXUs of another.The password range is from 1 to 1023. MXUs
are shipped with a default password of “1”. Select the proper pass-
word.
After verifying the proper settings by reprogramming the MXU.
attempt a reading. if test fails, proceed to Step 3
3. Troubleshoot MXU by loosening the SRII® security screw. After
opening MXU, verify that all wiring connections for each port (if
using a MultiRead Module. check all connections), TouchRead con-
nection, and battery pack are correct by “color code”. Also verify the
strength of the connections by lightly pulling on each gel~cap. Ntake
sure no bare wires can be seen in or around the gel-cap. Wires
should not be stripped prior to installing a gel-cap. if any wires are
not connected properly to theencoder, disconnect the black-and-
white stripe battery wire connection first by cutting the wire just
below the gel-cap connection. Then cut off the gel—cap for the bad
encoder connection and reconnect using the proper wire and new
gel-cap. Reconnect the battery using a new gel-cap. After verifying
all connections, attempt a reading while the device is still open. If
test passes, close the MXU and tighten the SRII® security screw. If
test fails proceed to Step 4.
Green 8. Wh|te
Green & White
Black & White
Red & White
05
i-
(D
\b
n\
Touch Read TouchRead
sensor sensor
(optional) (optional)
MXU Wiring Diagram
4. Test or replace the MXU battery pack. If testing the battery, cut the
black-and-white wire just below the gel-cap then repeat the proce-
dure for the red—and-white wire. Strip off some of the wire jacket on
each wire.
At the TouchPad connection, connect the same two wires to the ter-
minal screws on the back of the TouchPad.
Caution: Be sure there is no bare wire-to-wire contact. (The
TouchRead connection is non-polarity sensitive and will work as
long as the same color wires are used at both ends of the con-
nection. ff three-conductor wire is used, be sure the third "dead"
wire is not mistakenly connected at either end.)
Pit-set Mount Sensor — The TouchRead pit-set sensor includes a
factory-sealed three-conductor wire cable. Proper wire connections
are therefore important. To activate the pit—set TouchRead sensor.
use only the red and black wires from the sensor. Approximately 2"
of cable's outer jacket must be stripped from its end to access
these wires. Then, using gel-caps, connect the black wire from the
sensor to one of the green and White stripe wires from the MXU.
Next, connect the red wire from the sensor to the other green and
white stripe wire from the MXU.
III----.III..-------II--I-flfl-------IflIIIIIIIIIIIIIIIIIII.I.IIIIIII---.---..--.-..-.
AM R-309-R3
20t2
5. Verify MXU operation prior to final assembly:
0 To verify RadloRead reading, use Radio Frequency Solid State
lnterrogator (RFSSI) or Vehicle Transceiver (VXU) to display the
register odometer reading, register lD number, and MXU ID
number.
0 To verify TouchRead reading, use a Touch Read visual reader to
display register odometer reading and register ID number. If
MXU does not function, check all wire connections, re-do the
connections or change battery pack. (For complete TouchRead
installation and troubleshooting, see installation bulletins: TR-
728, TR-997, and TR-998.)
6. After wiring connections are completed and MXU operation is veri-
tied, align guides of top and bottom parts of MXU and close. bring-
ing the connection wire(s) out the front side using the wire pass-
thru guides located on either side of the security screw. Secure the
top and bottom parts of the MXU using the security screw.
Caution: DO NOT over-tighten security screw.
For Wall Mounting: (Indoors and Outdoors)
1. Using MXU mounting bracket, find a convenient location for the
MXU mounting. It is recommended that the MXU be mounted in an
upright position so the top part with the Invensys logo is facing up.
The MXU mounting bracket can be mounted to a wall using screws
or fasteners to an object using heavy duty wire ties. Grooves have
been placed in the back of the bracket for mounting on either hori-
zontal or vertical (existing) pipes.
2. After mounting MXU bracket, snap the MXU (which should already
be wired as noted in the preceding wiring instructions) into the
bracket. Be sure the locating tabs on either side of the MXU have
snapped into position in the mounting bracket. The installation is
now complete.
3. TouchPad Mounting (Optional) — If mounting the MXU outdoors and
a TouchRead TouchPad connection is to be included, mounting
holes can be drilled in the side of the MXU bracket. Using short
screws or plastic rivets, mount the TouchPad to the side of the MXU
bracket.
Caution: When using screws, be sure they do not penetrate the
MXU enclosure when mounting the TouchPad. The TouchPad can
also be mounted in a location away from the MXU. Be sure to use
screws that are designed for and applicable to the mounting sur-
face.
.' Invensys Metering Systems
1-800-METER-IT
1-800-638~3748
Tallinn: 1-800-888-2403
P.0. Box 437
. 459 N. Gallatln Avenue
l nve n sys Umontowrt, PA 15401
' FAX Direct tnFacto
M eten n g SySte m S Luca :(72«t)4.’:l9-‘l71l;g}l
Web site: m.lms.in~rensys.com
select North American Water
Email: hZolntu@lms.invensys.cum
For Pit-Set Mounting:
1. Use 1/2“ EMT. Select a location for the conduit where the MXU's
installed position will not interfere with the meter and allow the MXU
to be located as high as possible inside the meter box. The MXU
should be kept approximately 1" from the sides of the meter box
and positioned so the meter register odometer remains visible for
visual confirmation readings. Conduit mounting method calls for
driving a length of conduit into the ground at the bottom of the
meter box. (If the bottom of the meter box does not have an open-
ing sufficient for driving the conduit vertically into the ground below,
a different mounting method may need to be developed.) Place
driver on conduit and strike with hammer, driving conduit downward
until it is at the desired height. The correct height should be at the
point the driver is level with the top of the meter box in most cases.
When completely installed, the top of the MXU should be about 1"
below the meter box lid.
2. After installation of conduit, position the 1/2" opening located in the
bottom of MXU over the conduit and press into place. Place meter
box cover (lid) into position. Pit-set installation is now complete.
3. TouchRead Sensor Mounting (Optional) — lf installing a TouchRead
pit-set module follow the TRIPL mounting instructions on lnvensys
bulletin TR-997 for mounting in the meter box lid. Place meter box
cover (lid) into position with the TR/PL sensor in place.
NOTE: This equipment has been tested and found to comply with the
limits for a Class 8 digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation.This equipment gener-
ates. uses and can radiate radio frequency energy and. if not installed
and used in accordance with the instructions. may cause harmful inter-
ference to radio communications. However. there is no guarantee that
interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the fol-
lowing measures;
— Reorient or relocate the receiving antenna
— Increase the separation between the equipment and receiver
— Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected
— Con5ult the dealer or an experienced radio/TV technician
WARNING: No party shall make any modifications or changes to the
MXU Model 505 (the equipment) without the express written consent
of Invensys Metering Systems. Doing so could result in the equipment
becoming non-compliant with the requirements of the Federal Commu-
nication Commission Rules CFR47 Part 15 and could void the user's
authority to operate the equipment.
Scotchlok is a registered trademark of 3M Company
AUTHORIZED INVENSYS DISTRIBUTOR

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