Aclara 09015 Users Manual
MTU Instructions
Page 1
ALL MTU Instructions as of 10/1/2009
Instructions Included
Document Page
471-2000 – General Installation & Wiring Guidelines........................................................3
471-2001 – for Rockwell/Equimeter/Sensus Gas Meters (Direct Mount)..........................15
471-2002 – for Most Popular Water Meters........................................................................ 19
471-2003 – for American Meter Company Gas Meters (Direct Mount).............................25
471-2004 – for American Meter Company Gas Meters (Indirect Mount)........................... 29
471-2005 – for Carson Industries Pit Lids..........................................................................33
471-2006 – for Armor Access Pit Lids................................................................................37
471-2007 – for Invensys/Icon MTU/Electric Meter.............................................................41
471-2008 – for Hexagram Submetering Pulse Adapters ..................................................43
471-2009 – for AMCO/ABB Water Meters...........................................................................51
471-2010 – for Neptune/Schlumberger Water Meters.......................................................55
471-2011 – for Sensus/Invensys Water Meters .................................................................59
471-2012 – for Hersey Water Meters...................................................................................61
471-2013 – for Badger Water Meters..................................................................................63
471-2014 – for M-Log Sensors ............................................................................................65
471-2015 – for Rockwell/Equimeter Intermediate/Large Capacity Gas Meters..............67
471-2016 – for American Commercial/Industrial Gas Meters ..........................................73
471-2017 – for Sprague/Schlumberger 250 Gas Meters (Bracket-direct-mount)..............79
471-2018 – for Lancaster 250 Gas Meters (Bracket-direct-mount).....................................83
471-2019 – for Lancaster 175 Gas Meters (Bracket-direct-mount).....................................87
471-2020 – for Mini-Max....................................................................................................... 91
471-2021 – for Sprague 175 Gas Meters (Indirect Mount)..................................................95
471-2022 – for Metron-Farnier Water Meters....................................................................101
471-2023 – for Nicor Composite Pit Lids .......................................................................... 103
471-2026 – for American Meter Commercial & Industrial Diaphragm Gas Meters
(Hexagram Large Meter Pulser)............................................................................................107
471-2027 – for Rockwell/Equimeter Intermediate and Large Capacity Gas Meters
(Hexagram Large Meter Pulser)............................................................................................109
471-2028 – for Actaris Commercial & Industrial Diaphragm Gas Meters
(Hexagram Large Meter Pulser)............................................................................................119
471-2029 – for Dresser Roots-type Gas Meters................................................................125
471-2030 – for Romet Roots-type Gas Meters.................................................................. 131
October, 2009
MTU Instructions
Page 2
ALL MTU Instructions as of 10/1/2009
Instructions Included (Continued)
Document Page
471-2031 – for Actaris/Schlumberger/Sprague ‘Slant-face’ Gas Meters........................137
471-2032 – for Armorcast Composite Pit Lids..................................................................141
471-2033 - for Actaris/Schlumberger/Sprague Pit/Curbside Gas Meters ......................145
471-2034 – for American Meter Company 5B-225 Gas Meters........................................149
471-2035 - for Sensus/Equimeter/Rockwell 415 Gas Meters...........................................153
471-2036 - for Sensus/Equimeter/Rockwell 175S Gas Meters........................................157
471-2037 - for Sensus/Equimeter/Rockwell 175-EMCO Gas Meters...............................161
471-2038 - for Sensus/Equimeter/Rockwell Residential Gas Meters (Indirect Mount)...163
471-2040 – for Landis & Gyr Focus Family Electric Meters............................................167
471-2041 – for Landis & Gyr S4 Family Electric Meters ..................................................169
471-2042 – for DFW Rectangular Composite Pit Lids......................................................171
471-2043 – for Carson Industries Polyplastic Pit Lids.....................................................175
471-2044 – for Sensus/Equimeter/Rockwell Gas Meters (Metric - direct mount)............179
471-2045 – for Mid-States 12" Round Pit Lids..................................................................183
471-2046 – for Alliance Rectangular Pit Lids....................................................................187
471-2047 - for Actaris/Schlumberger/Sprague ‘Flat-face’ Gas Meters...........................189
471-2051 – for Actaris Dattus fm2 and fm3 Commercial & Industrial
Diaphragm Gas Meters .......................................................................................................195
471-2052 – for Severn-Trent SmartMeter Water Meters...................................................197
471-2053 – for Endress & Hauser PROMAG Water Meters .............................................199
471-2054 – for Actaris Cyble Water Meters.......................................................................201
MTU Instructions
Page 14
General Installation and Wiring Guidelines
Intentionally Left Blank
The FCC wants you to know…..
This equipment has been tested and complies with Part 15 and Part 90 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference. This equipment generates, uses
and can radiate radio frequency energy, and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, try to correct the interference by one or more of the following measures:
• Reorient or relocate the equipment.
• Increase the separation distance between the affected equipment and receiver.
• Consult Hexagram, Inc. for help.
Any changes or modifications to this equipment not expressly approved by the Hexagram, Inc. could void the
authorization to operate the equipment.
FCC RF Exposure Guidelines
Hexagram’s low power RF devices and their antennas must be fixed-mounted on indoor or outdoor
permanent structure(s) providing a separation distance of at least 20 cm from all persons during norm al
operation. This device is not designed (and it has no external connection) to operate in conjunction with any
other antennas or transmitters. No other operating instructions for satisfying RF exposure compliance are
needed. This unit has no user or installer serviceable parts, and requires no field adjustment or calibration.
Units are sealed at the factory, and disruption of this seal could void the authorization to operate the
equipment.
Hexagram, Inc.
23905 Mercantile Road
Cleveland, OH 44122
MTU Instructions
Page 3
General Installation and Wiring Guidelines
Purpose & Scope
This instruction outlines general practices and procedures for the installation and wiring of
standalone, electronic interface Hexagram STAR MTUs. When installing an MTU,
always refer to these instructions in addition to
meter/MTU combination you will be installing and programming.
any specific instructions for the
Note: STAR MTUs are shipped to the customer in sealed enclosures and have passed
extensive testing and calibration procedures at the factory. No additional calibration or
adjustment is required, or can be made, without breaking thefactory seal. As calibrated,
these devices radiate a tiny fraction of the power allowable by
Exposure Limits 47 CFA CH 1.1310. There are no radio-frequency safety issues relating
to the use of this product based on this regulation.
471-2000 - 7/25/2007
FCC Radio Frequency
MTU Instructions
Page 4
General Installation and Wiring Guidelines
Recommended Supplies
We recommend the following supplies, for which quantities will depend upon the number of
MTUs to be installed and the conditions encountered at each installation location.
Item
Hexagram Part
Number
AMP Tel-Splice, 2-conductor 043-1910
Scotchlok, UR 2-3 wire gel-filled butt connector 043-1913
3-conductor, 22 ga, solid wire, black UV jacket 070-0506
3-conductor, 22 ga, solid wire, grey UV jacket 070-0508
AA alkaline battery, 1.5 volt (for Psion) 042-0036
Back-up battery for Psion MTU Programmer 042-0037
3M DBR-6 Direct Burial Kit (for pit unit splices) 043-1912
Sealant — White RTV 084-0082
Black electrical tape
Tie-wraps, black
Staples, telephone type, 9/16” (Arrow T-25)
Sharpie permanent marker, fine point
Plastic masonry anchors #6 x 1”, ¼” diameter
for use with Original Flatpak MTUs
Hexagram plastic spacers 056-5155H1
Phillips exterior screws 8 x 2 ½” (deck screw)
Phillips exterior screws 8 x 3” (deck screw)
Drywall screws, #6 x 1-5/8” Phillips, coarse (for indoor use)
Drywall screws, #6 x 2” Phillips, coarse (for indoor use)
MTU spacer for pipe or bar mount 056-5155K
18″ heavy-duty UV-resistant tie wrap (for bar mounting gas
067-0030
MTUs)
10-32 x 1½″ pan head machine screw (for bar mounting gas
069-103248CS
MTUs)
10-32 nut, stainless steel (for bar mounting gas MTUs) 069-3011
#10 7/16” flat washer, stainless steel (for bar mounting gas
069-3004
MTUs)
Quantity
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
As needed
for use with NEW Compact Flatpak MTUs
Long Spacers/Standoffs (for pit lid installations) 056-8150L
Short Spacers/Standoffs (for pit lid installations) 056-8150S
Phillips exterior screws 8 x 1 3/4” (deck screw)
Drywall screws, #6 x 1-5/8” Phillips, coarse (for indoor use)
As needed
As needed
As needed
As needed
MTU Instructions
Page 5
General Installation and Wiring Guidelines
Recommended Tools
• Cordless drill (⅜”, variable speed,
1800-2000 rpm, adjustable torque
settings)
• Drill bit, ¼”, carbide tipped
• Drill bit, ¼” x 12”, carbide tipped
• #2 Phillips power screwdriver bits
• Stapler for ¼” wire and cable
(Arrow T-25M)
• Diagonal side cutters/wire cutters
• Needle nose pliers – small
• Wire stripper
• Connector crimping tool 3M 9EY
• Safety goggles
• Screwdriver, #1 Phillips
• Screwdriver, #2 Phillips
• Screwdriver, 5/16” slotted
• Screwdriver, ¼” slotted
• Screwdriver, small slotted, ⅛”
blade
• Hammer
• Clipboard
• Flashlight with batteries
• Extension cord with trouble light
• MTU Programmer with cable,
programming coil and STAR
Programming Software
MTU Wiring
General - Many MTUs connect to the
meter by means of a 3-conductor, 22gauge solid conductor wire. The wire is
housed in a PVC jacket with UV
inhibitors. A black-jacketed wire is
supplied on single-port MTUs and for port
1 of dual-port MTUs. A grey jacket is
used for the port two input to dual port
MTUs.
Wire Length – MTUs are provided with a
standard wire length of 12 feet. Additional
wire may be used if necessary. A
maximum run of up to 500 feet can be
used to position the MTU in a favorable
location. Use like-colors for cable jackets
and individual wires when extending MTU
wiring.
Some specific meters may impose other
wire length limitations. Consult the meter
manufacturer.
Wire Routing - Wires should be attached
to walls with 9/16” staples. If wire
clearance holes are needed to route wire
from the meter to the MTU, drill a ¼” hole
using an appropriate drill bit. The installer
is responsible for the selection of an
appropriate location for any hole to be
drilled.
Note: Wiring must be in accordance with
all national and local codes.
Wire Protection - A drip loop below the
MTU is not required.
Inspect wire to ensure that routing and
stapling have not caused wire damage.
Pull the wire lightly at each staple to
make sure that the staple is not set too
tightly.
Any splices made to wire must be
suitable for the environment and made in
accordance with national and local codes.
MTU Instructions
Page 6
General Installation and Wiring Guidelines
They must be secure and made in
accordance with the connection supplier’s
instructions. Generally, gel-filled
Insulation Displacement Connectors
(IDCs) such as 3M ScotchLok or AMP
Tel-Splice connectors should be used on
all wire-to-wire connections.
Splices located outdoors or in meter pits
should be further protected through the
use of a direct burial kit. This consists of
a gel-filled plastic tube that houses the
individual wire-to-wire splices to provide
additional protection from the elements.
Since MTU transmissions are similar in
nature to cellular phone signals, a cellular
phone can be used to help to determine if
a location is suitable for MTU mounting.
If the cellular phone signal drops
dramatically or indicates no signal at the
desired location, it is possible that the
MTU signal will also be blocked at this
location. In this case, the MTU will have
to be mounted in a different location,
possibly on the outside of the structure.
Keep the MTU away from all other
electrical wires.
Note: Do not mount the MTU under
wiring such as Romex, AC power wires,
cable TV wire, or telephone wire. Do not
allow these wires to lay on top of, or in
front of the MTU.
Note: Keep the MTU six inches away
from metal items such as pipes, conduit,
electric meters, electrical boxes, and
downspouts.
Make sure screws used to mount the
MTU do not protrude and pierce or
otherwise damage any wires, cables, or
pipes.
MTU Positioning and Mounting
General - MTUs must be positioned and
mounted properly to ensure optimum RF
signal propagation. Each MTU contains
an internal antenna near the top front
surface of the sealed enclosure. As a
result, the MTU should always be
mounted vertically and the STAR logo
should face the installer.
Use of Spacer – There are two primary
styles of MTUs. The Original Flatpak
STAR MTU requires the use of a spacer
(Hexagram Part Number 056-5155H1)
when the MTU is mounted on any surface
other than wood. The NEW Flatpak
STAR MTU is a modified design that can
be directly mounted to a variety of
surfaces without the use of a spacer.
See the examples below for additional
information.
MTU Instructions
Page 7
General Installation and Wiring Guidelines
NEW Flatpak STAR MTU – An example
of the NEW Flatpak STAR MTU is shown
below. These MTUs are approximately
6.5” x 4.25” x 1.5” thick, and can be
mounted on most surfaces without the
use of a spacer.
Original Flatpak STAR MTU – An
example of an Original Flatpak STAR
MTU is shown below. These MTUs are
6.5” x 5.5” X 1” thick, and require a
spacer if mounted on any material other
than wood.
Note: Do not use a spacer when
mounting an Original Flatpak STAR MTU
on wood.
MTU Instructions
Page 8
General Installation and Wiring Guidelines
Outdoor Mounting
MTUs mounted outdoors are typically
mounted to the side of buildings, to a
stationery post, to the piping surrounding
the meter, or to a pit lid.
Mounting to a Buiding or Post
If the unit is being mounted to the outside
of a building, the MTU will be connected
to wires that lead from the inside to the
outside of the building. If existing wire is
used, it must be of the same quality as
specified in MTU Wiring. It must also be
in good condition, without breaks,
damage, or corrosion.
Step 1 – Select a mounting location for
the MTU that will allow optimum signal
transmission.
Step 2 – Run wiring from the MTU to the
meter. If a splice is required, it may be
placed inside or outside. For special
circumstances, contact your supervisor.
If using existing wiring, remove any box
that houses the outside wires.
Step 3 – Mount the MTU on the side of
the building.
CAUTION!
Do not over tighten screws.
Excessive torque will crack
the MTU enclosure. Do not
tighten screws beyond the
point that the MTU touches
the mounting surface.
Step 4 – Make the appropriate
connections to the meter. Refer to the
specific MTU Instruction for the meter in
use.
Bar or Pipe Mounting
Particularly in outdoor gas applications, it
is sometimes convemient to mount the
MTU to the connecting piping. With the
Original Flatpak STAR MTU this is easily
done using a bar-mount spacer and two
18” long tie-wraps, (See Recommended
Supplies.)
Step 1 - Thread the tie-wraps into the bar
mount spacer as shown here.
• The MTU must be mounted
level, vertically with the STAR
logo facing the installer. Allow a
1” space between the top of the
MTU and the overhang of the
siding above it. This is critical
for proper radio signal
transmission.
• Use a Spacer (Hexagram Part
Number 056-5155H1) if
mounting an Original Flatpak
STAR MTU on a non-wood
surface.
MTU Instructions
Page 9
General Installation and Wiring Guidelines
Step 2 - Attach the spacer to the MTU
using #10-32 stainless steel screws, nuts
and washers. Tighten the screws to 12 to
15 in-lb. On a standard drill driver with 0
to 24 torque settings, this is typically the
#10 setting.
Step 3 - Wrap the tie wraps around the
bar as needed, pulling the ties around
(through the spacer plate) as they are
tightened.
Step 4 - Adjust the MTU as needed and
pull the tie wraps tight.
Pit-Lid Mounting
For water or gas meters located in meter
pits, MTUs can be mounted to the lower
surface of the pit lid if an approved, nonmetallic pit lid is used. In these
applications, the MTU is mounted with it’s
front surface facing the bottom surface of
the lid, as shown below
Original Flatpak STAR MTU
When NEW Flatpak STAR MTUs are
mounted in this manner, spacers are
used between the MTU mounting tabs
and the lower surface of the pit lid, as
shown below.
Step 5 - Trim off the excess tie wrap,
leaving about a ½” tab.
Step 6 – Once Installation is complete,
program the MTU using the STAR
Programmer Software and your MTU
Programmer.
Revised Flatpak STAR MTU
MTU Instructions
Page 10
General Installation and Wiring Guidelines
A long spacer is available, for use when
the lower surface of the pit lid is a flat,
solid surface. A short spacer is used
when the lower surface of the pit lid in
use has a ribbed construction.
Contact Hexagram for information on
approved non-metallic pit-lids.
Indoor Mounting
For an inside mount, mount the MTU
vertically on a ceiling joist. It is important
to mount the MTU as high as possible.
Note: The MTU must be mounted above
grade.
Because the outside wall of a building
can have metal siding or foil insulation,
keep the MTU a few inches away from
the outside wall. Transmissions easily
pass through wood and masonry.
Do not install an MTU inside if the
basement has a metal ceiling or foil-lined
insulation in the ceiling or if it has foil on
the sidewalls running from grade to
ceiling. This will prevent the signal from
transmitting effectively.
Do not mount the MTU if large metal
objects, such as heating ducts, block both
the front and rear of the MTU. If
absolutely necessary, a single large metal
object may be located several feet away
from the MTU.
Unfinished Basement
Step 1 – Select a mounting location for
the MTU that will allow optimum signal
transmission. In unfinished basements,
this is typically high on a ceiling joist, at
least a few inches away from outside
walls.
Step 2 – Mount the MTU.
• The MTU must be mounted
level, vertically with the STAR
logo facing the installer. Allow a
1” space between the top of the
MTU and any overhang above
it. This is critical for proper
radio signal transmission.
• Use a Spacer (Hexagram Part
Number 056-5155H1) if
mounting an Original Flatpak
STAR MTU on a non-wood
surface.
CAUTION!
Do not over tighten screws.
Excessive torque will crack
the MTU enclosure. Do not
tighten screws beyond the
point that the MTU touches
the mounting surface.
Large metal objects such as heating
ducts, steel cabinets or metal ceiling
structures can block MTU transmissions.
Select locations that are at least five to
ten feet away from objects such as these.
MTU Instructions
Page 11
General Installation and Wiring Guidelines
Step 3 – Run wiring from the MTU to the
meter. Carefully staple the wire to the
wall every 18” and at every change in
direction using 9/16” staples. All turns
are to be at right angles. If wire must be
run on masonry, secure it with wire clips.
Run wires parallel to the joist. If a joist
must be crossed, run at a 90 degree
angle. If the MTU input cable must be
extended, use an appropriate splice.
Make sure inner conductors are not
nicked during stripping.
Step 4 – Make the appropriate
connections to the meter. Refer to the
specific MTU Instruction for the meter in
use.
Finished Basement
Step 1 – Select a mounting location for
the MTU that will allow optimum signal
transmission. In Finished basements,
this may be high on a ceiling joist in an
unfinished section of the basement or
high on an interior wall near a window or
outside wall, but at least a few inches
away from outside walls.
CAUTION!
Do not over tighten screws.
Excessive torque will crack
the MTU enclosure. Do not
tighten screws beyond the
point that the MTU touches
the mounting surface.
Step 3 - Run wiring from the MTU to the
meter. Run all wiring behind the wall if
possible. Carefully staple the wire to the
wall every 18” and at every change in
direction using 9/16” staples. All turns are
to be at right angles. If wire must be run
on masonry, secure it with wire clips. Run
wires parallel to the joist. If a joist must be
crossed, run at a 90 degree angle. If the
MTU input cable must be extended, use
an appropriate splice. Make sure inner
conductors are not nicked during
stripping.
Step 4 – Make the appropriate
connections to the meter. Refer to the
specific MTU Instruction for the meter in
use.
Note: Ceilings may contain metal.
Therefore, the MTU should be placed 2 to
3 inches down from a plaster or ‘dropped’
ceiling.
Step 2 – Mount the MTU.
• The MTU must be mounted
level, vertically with the STAR
logo facing the installer. Allow a
1” space between the top of the
MTU and any overhang above
it. This is critical for proper
radio signal transmission.
• Use a Spacer (Hexagram Part
Number 056-5155H1) if
mounting an Original Flatpak
STAR MTU on a non-wood
surface.
MTU Instructions
Page 12
General Installation and Wiring Guidelines
Do
9 Do check your cell phone for presence
of a strong signal before entering a
building or basement. Do install the
MTU if the signal remains strong at
the installation location. (Note: This is
a guideline only. It does not guarantee
that the MTU will be received by the
DCU. However, if cell phone service is
affected by the location, it is possible
that the MTU transmission will also be
blocked.)
9 Do select the best possible location
for MTU installation that will allow
optimum signal transmission.
9 Do select a location for MTU
installation that is above grade.
9 Make sure that the MTU is located
near an outside wall, but not on an
outside wall.
9 Make sure the MTU in installed within
500 feet of the meter.
9 Do make sure that no staples have
pierced the installation wire.
9 Do mount the MTU vertically and level
with the STAR Logo facing the
installer.
9 Do keep the MTU a few inches away
from the outside wall in case of metal
siding or foil insulation.
9 Do use a spacer when mounting an
Original Flatpak STAR MTU on any
surface other than plaster or wood.
9 Do use a spacer if you need to make
a splice near the MTU and if the MTU
is mounted outside.
9 Do keep the MTU at least 6” (the
width of the MTU) from all pipes,
conduit, electric meters, electrical
boxes, downspouts, dumpsters,
garbage cans, water, electric and gas
meters, etc.
9 Do keep at least 4” between MTUs
side to side and 3” top to bottom,
when installing multiple MTUs.
9 Do mount an MTU 2” to 3” below a
plaster ceiling or the metal grid of a
drop ceiling.
9 Do use amp splices and 3M DBR Gel
kits when making splices in pits.
9 Do make sure the correct meter type
and size is selected.
9 Do make sure the MTU is
programmed on.
9 Do program the MTU as the last step.
Make sure it is mounted, wired, all
splices are completed and tucked into
place and wires are stapled in place.
9 Do follow all national and local codes
when installing MTUs.
9 Do inspect all splices, connections
and wiring for damage.
9 Do route all wires away from the MTU
case.
MTU Instructions
Page 13
General Installation and Wiring Guidelines
Don’t
9 Don’t install the MTU if the cell phone
signal was strong outside the building
or basement and then goes into “no
service” or a very weak signal at the
MTU installation site.
9 Don’t select a location for MTU
installation that is easy to install, but
will not allow for good signal
transmission.
9 Don’t select a location for MTU
installation that is below grade.
9 Don’t place the MTU under Romex,
AC power wires, cable or TV wire,
telephone wire, etc. Don’t allow these
wires to lay on top of or in front of the
MTU.
9 Don’t mount the MTU right next to
conduit or metal pipes.
9 Don’t over tighten the screws when
mounting the MTU.
9 Don’t route the MTU wire along the
top or front of the MTU.
9 Don’t mount the MTU near 2 or more
metal objects such as heating ducts.
9 Don’t mount the MTU behind metal
objects such as washers, dryers,
furnaces, hot water tanks, metal sinks,
metal shelves, dumpsters, garbage
cans, water, electric or gas meters, or
any other large metal objects.
9 Don’t mount the MTU in a basement
that has metal ceilings unless there is
an opening in the ceiling that is above
grade where the MTU can be
installed.
9 Don’t mount the MTU near electrical
wires.
9 Don’t stack MTUs on top of each other
(back to front).
9 Don’t install an MTU if the case is
cracked or broken.
9 Don’t mount the MTU in the center of
a basement.
9 Don’t make a connection or splice if
any of the wires are nicked or cut. Restrip the wire and start over.
9 Don’t damage insulation with staples,
or by rough handling.
9 Don’t stretch wire when installing.
9 Don’t exceed 500 feet total wire length
between the MTU and the meter.
MTU Instruction
Page 15
for Rockwell/Equimeter/Sensus Gas Meters
Purpose & Scope
This instruction provides a procedure for installing a STAR direct-mount MTU on the
following Rockwell/Equimeter/Sensus meters: R175, R200, R250, R275, R310, R315,
RT210.
Parts Required
Ref. # Item Part Number Quantity
1 Gasket (pre-applied to MTU) 066-5155C 1
2 Blue Coupler, MTU 056-5155E 2
3 Retaining Shaft, MTU 056-5155D 1
4 MTU, Direct Mount per project 1
5 Magnet 036-0002 1
6 Gear, Blue, Standard 056-5155G4 1
7 #6 Round Spacer, Nylon 068-60812-EX 2
8 10-24 x 1 1/8” Slotted, Fillister Head Machine Screw 069-102436H 4
9 #10 Flat Washer, Acetal 069-3019 1
10 #6 x 1 1/4” Combo Panhead Sheet Metal Screw 069-060040C3 2
11 Register Cover, MTU 109-7712A 1
12 #10 x 3/4” Tri-lobular Screw 069-101424A2 2
13 Gear, Red, Extended 056-5155G3 1
14 Gear, Yellow, Odometer 056-5155G2 1
471-2001 - 7/14/2008
for Rockwell/Equimeter/Sensus Gas Meters
Page 16
Tools Required
To mount the MTU to these meters, you
will need the following tools and
equipment:
• Cordless drill ⅜”, variable
speed, with adjustable torque
settings
• #2 Phillips bit
• Safety goggles
• Phillips screwdriver
• Slotted screwdriver
Installation Procedure
Before installing the MTU, anti-tamper,
safety, and security hardware must be
removed from the clear register cover.
Step 1 - Remove the existing clear
register cover by removing the four
screws. Discard the screws and cover.
Step 2 - Remove the register by
removing the two screws. Set the register
aside. Discard the screws.
Step 3 - Insert the four 10-24 x 1⅛”
screws through the holes on the MTU as
shown.
MTU Instruction
Step 4 – Turn the MTU over and insure
that there is a pre-applied gasket on the
back of the MTU as shown below.
Note: Couplers are pre-assembled to the
MTU. Insure that the couplers are firmly
attached to the shaft and that the coupler
on the front side of the MTU contains the
magnet. Also, verify that the plastic
washer is in place between the rear
coupler and the MTU.
Step 5 - Position the MTU on the meter.
Rotate the coupler so that the gear tooth
on the coupler engages with the gear
teeth on the gas meter. Orientation is not
critical, but you should be able to feel the
teeth “bite” when you turn the coupler
from the front of the MTU.
Step 6 - Tighten the four 10-24 x 1-⅛”
screws to 12 to 15 in-lb. On a standard
drill driver with 0 to 24 torque settings,
this is typically the #10 setting. Tighten
corner to corner.
Step 7 - Check the coupler. It should
have slight play — it should not bind or
turn too freely.
MTU Instruction
Page 17
for Rockwell/Equimeter/Sensus Gas Meters
Step 8 – Select gear to fit between the
register and the MTU without binding.
Typically, the correct gear can be
selected based upon the type of index in
use, as shown in the following table.
Type of
Index
Plastic, dialtype
Brass, dialtype
Plastic,
odometertype
Place the selected gear into the coupling.
The head of the pin on the gear needs to
be facing out.
Coupler Drive Gear
Blue Gear
(Part # 056-5155G4)
Red Gear
(Part # 056-5155G3)
Yellow Gear
(Part # 056-5155G2)
Step 9 - On the register, insert the screws
and spacers.
Note: Spacers may not be required with
odometer-style registers.
Step 10 - Mount the register to the MTU,
fastening it to the mounting holes shown
below. Hand tighten to a torque not to
exceed 3-5 inch-pounds. Make sure the
index register gear and the MTU coupler
gear are engaged.
CAUTION!
Do not over tighten screws.
Excessive torque may
damage the MTU enclosure.
Power tools are not
recommended for use on
steps 9-12.
MTU Instruction
Page 18
for Rockwell/Equimeter/Sensus Gas Meters
Step 11 - After you feel engagement
between the index register gear and the
MTU coupler gear, tighten the register
screws until they are snug.
Step 12 - Place the new cover over the
register so that the top label or arrow is
on top and the vent holes are on the
bottom. Align the cover with the mounting
holes on the MTU, press it into place, and
insert the #10 x 1” screws. Hand tighten
to a torque not to exceed 3-5 inchpounds. The gasket should be
compressed slightly.
Step 13 - Replace any anti-tamper,
safety, or security hardware onto the plastic cover as required.
Step 14 – Once Installation is complete,
program the MTU using the STAR
Programmer Software and your MTU
Programmer.
MTU Instruction
Page 19
for Most Popular Water Meters
Purpose & Scope
This instruction provides wiring information for connecting STAR MTUs to any of the
following popular water meters:
• AMCO and/or ABB water meters (all sizes)
equipped with Invision, Scancoder, RS Pulser,
or Type A Industrial Pulser registers and with
the AMCO/ABB V100 (PSMT) meter and the
S130/5UM hot and cold water meters.
• Neptune and/or Schlumberger water meters (all
sizes) equipped with ARB-V, Auto/ProRead or
E-Coder PLUS registers.
• Sensus and/or Invensys water meters (all sizes)
equipped with ECR or ICE registers.
• Hersey water meters equipped with Translator
or ER2 registers.
• Badger water meters (all sizes) equipped with Read-O-Matic, RTR or ADE
registers.
• Metron water meters (all sizes) equipped with OER registers.
Supplies and Tools Required
See Publication 471-2000, General
Installation and Wiring Guidelines for a
complete list of recommended tools and
supplies for MTU Installation.
Installation Procedure
Step 1 - Select a mounting location for
the MTU that will allow optimum signal
transmission, and install any needed
wiring. Be sure to follow all General
Installation and Wiring Guidelines as
outlined in Publication 471-2000.
Step 2 – Select the wiring diagram that
applies to the meter you are connecting
and make the appropriate wiring
connections.
a. Direct Wiring to Meter - MTU
wiring is supplied stripped to a
standard length that fits water
meters with screw terminals.
Simply wrap the wires around the
screw terminal and tighten the
screw hand tight. Over tightening
the screw can stress and possibly
damage the wire.
b. Water Meter with Integral Cable -
If the water meter is supplied with
an integral cable and a cable-tocable splice is necessary, use a
gel-filled wire splice designed for
outdoor (moisture applications) to
seal the individual connections.
471-2002 - 7/24/2006
MTU Instruction
Page 20
for Most Popular Water Meters
Note: When connecting a dual port MTU
to a compound meter, connect port 1
(black jacket) to the primary, or high-flow
register and port 2 (grey jacket) to the
secondary or low-flow register.
Step 3 – Make a final visual check of the
wiring from the MTU to the meter register.
Verify that the cable routing is neat,
secure and professional.
Step 4 – Once installation and wiring are
complete, program the MTU using the
STAR Programmer Software and your
MTU Programmer.
AMCO/ABB Scancoder
MTU Cable Scancoder Register
Red G (Green)
Black B (Black)
White R (Red)
Wiring Diagrams
AMCO Invision
MTU Cable Invision Register
Red G (Green)
Black B (Black)
White R (Red)
AMCO/ABB RS Pulser
MTU Cable RS Pulser Register
Red R (Red)
Black B (Black)
White B (Black)
No Connection G (Green)
MTU Instruction
Page 21
for Most Popular Water Meters
AMCO/ABB Type A Industrial Pulser
MTU Cable
Red
Black
White
Type A Industrial
Pulser Register
+ Positive
- Negative
- Negative
AMCO/ABB V100 (PSMT)
MTU Cable V100 (PSMT) Cable
Red Red
Black Blue
White Blue
No Connection Black
No Connection Yellow
AMCO Digital Register
MTU Cable
Red R (Red)
Black B (Black)
White B (Black)
No Connection G (Green)
AMCO Digital
Register
AMCO S130/5UM Hot Water
MTU Cable S130/5UM Cable
Red Brown
Black White
White White
MTU Instruction
Page 22
for Most Popular Water Meters
AMCO S130/5UM Cold Water
MTU Cable S130/5UM Cable
Red Brown
Black White
White White
Neptune/Schlumberger ARB-V or
Auto/ProRead
Neptune/Schlumberger E-Coder PLUS
MTU Cable
Red B (Black)
Black G (Green)
White R (Red)
E-Coder PLUS
Register
Sensus/Invensys ECR or ICE
MTU Cable ProRead Register
Red B (Black)
Black G (Green)
White R (Red)
Note: Auto/ProRead registers must be
programmed for 3-wire mode.
MTU Cable
Red R (Red)
Black B (Black)
White G (Green)
Sensus/Invensys
Register
Note: The 8-digit Sensus ICE Register
must be programmed to deliver 6
consecutive digits of reading information
for proper operation with STAR MTUs.
MTU Instruction
Page 23
for Most Popular Water Meters
Hersey Translator
MTU Cable Hersey Register
Red R (Red)
Black B (Black)
White G (Green)
Note: The Hersey Translator Register
must be programmed for 6-digit readings
for proper operation with STAR MTUs.
Hersey ER2
Badger RTR
MTU Cable RTR Cable
Red R (Red)
Black B (Black)
White G (Green)
Note: Some RTR registers may be
provided with only a black wire and a
white wire with a shield. For this
variation, Trim the shield off and connect
as listed below.
MTU Cable RTR Cable
Black B (Black)
MTU Cable ER2 Ca ble
Red R (Red)
Black B (Black)
White G (Green)
White B (Black)
Red W (White)
No Connection White-Shield
MTU Instruction
Page 24
for Most Popular Water Meters
Badger ADE
MTU Cable ADE Cable
Red R (Red)
Black B (Black)
White G (Green)
Note: The Badger ADE register must be
programmed for 6-digit readings for
proper operation with a STAR MTU.
Badger Read-O-Matic
Metron OER Register
MTU Cable OER Cable
Red R (Red)
Black B (Black)
White G (Green)
Note: The 5-digit Metron OER register
must be configured for an additional
trailing zero for proper operation with
STAR MTUs.
MTU Cable
Red
Black
White
Read-O-Matic
Terminals
+ Positive
- Negative
- Negative
MTU Instruction
Page 25
for American Meter Company Gas Meters
Purpose & Scope
This instruction provides a procedure for installing a STAR direct-mount MTU on the
following American Meter Company meters: AC-175, AL-175, AT-175, AC-250, AL-250,
AM-250, AR-250, AT-210/250, AT-350, AL-425, AC-630.
Parts Required
Ref. # Item Part Number Quantity
1 Gasket 066-5155E 1
2 Coupler, MTU 056-5155E1 2
3 Retaining Shaft, MTU 056-5155D 1
4 MTU, Direct Mount per project 1
5 Magnet 036-0002 1
6 #8 x 3/8” Combo Panhead Sheet Metal Screw 069-080012C4A 2
8 ¼-20 x 1 1/4” Slotted Fillister Head Machine Screw 069-142040GA 2
9 Register Cover 109-7712A 1
10 #10 x 1” Combo Panhead Sheet Metal Screw 069-100032C3A 2
471-2003 - 7/18/2007
MTU Instruction
Page 26
for American Meter Company Gas Meters
Tools Required
To mount the MTU to these meters, you
will need the following tools and
equipment:
• Safety glasses
• Phillips screwdriver
• Slotted screwdriver
Installation Procedure
Before installing the MTU, all anti-tamper,
safety, and security hardware must be
removed from the clear register cover.
Step 1 - Remove the existing clear
register cover by removing the four
screws that hold it. Discard both the
screws and the cover.
Step 2 - Remove the register by
removing the two screws that hold it. Set
the register aside. Discard the screws.
Step 3 - Mount the register onto the MTU,
fastening the register to the mounting
holes shown here with the #8 x 3/8”
screws provided.
Then insert the second screw and tighten
both screws to a torque not to exceed 3-5
inch-pounds.
Note: On some odometer-style registers
like the one shown below, slight
protrusions on the back of the register
assembly can interfere with proper
alignment of the register. Should this
occur, use a diagonal cutting plier to trim
the two wire guides on the MTU to the
right of the coupler. Trim these guides as
close to flush with the MTU enclosure as
possible. (See MTU photo below.)
Start one of the two screws into the
mounting hole, and then slide the register
beneath the screw aligning the wiggler on
the register with the MTU coupler.
CAUTION!
Do not over tighten screws.
Excessive torque may
damage the MTU enclosure.
Use of Power tools is not
recommended.
for American Meter Company Gas Meters
Page 27
Step 4 – Check that the register is
properly engaged by rotating the coupler
on the back of the MTU and observing
the register dials.
MTU Instruction
Step 5 – Next, Insert the two ¼-20 x 1
1/4” machine screws through the holes on
the MTU as shown here.
Step 6– Turn the MTU over and place the
gasket on the back of the MTU so that it
aligns over the two screws.
Half-foot Drive Quarter-foot Drive
Step 8 – Now, firmly hand tighten the two
screws to 12 to 15 in-lb. Be careful not to
over tighten the screws. Excessive torque
may damage the MTU enclosure.
Because of this, power tools are not
recommended for this procedure.
Step 7 – Next, position the MTU on the
meter. Tighten the two ¼-20 x 1 1/4”
mounting screws most of the way, and
then rotate the register dials slightly to
engage the wiggler on the gas meter. The
wiggler must engage with the rear coupler
on the MTU as shown in these
illustrations. (Coupler shown detached
from the MTU for illustration purposes
only.)
Step 9 - Check the coupling one more
time. It should have slight play — it
should not bind or turn too freely.
Step 10 - Place the new cover over the
register so that the top label or arrow is
on top and the vent holes are on the
bottom. Align the cover with the mounting
holes on the MTU, press it into place, and
insert the #10 x 1” screws. Hand tighten
to a torque not to exceed 3-5 inchpounds. The gasket should be
compressed slightly.
MTU Instruction
Page 28
for American Meter Company Gas Meters
Step 11 – Replace any anti-tamper,
safety, or security hardware onto the
plastic cover as required.
Step 12 – Once Installation is complete,
program the MTU using the STAR
Programmer Software and your MTU
Programmer.
MTU Instruction
Page 29
for American Meter Company Gas Meters
Purpose & Scope
This instruction provides a procedure for installing a STAR indirect-mount MTU on the
following American Meter Company meters: 5B-225, 225. Please also refer to
Publication 471-2000, General Installation and Wiring Guidelines for general information
covering the wiring and mounting of STAR MTUs.
Parts Required
Ref. # Item Part Number Quantity
1 Gasket Part of Item 4 1
2 Drive Foot Part of Item 4 1
3 Magnet Spyder Part of Item 4 1
4 American Meter 225 Sensor 109-7393B 1
5 Magnet 036-0002 1
6 #8 x 3/8” Combo Panhead Sheet Metal Screw 069-080012C4A 2
9 ¼-20 x 2” Slotted Fillister Head Machine Screw 069-142064HA 4
Not Shown
Not Shown
Not Shown
Not Shown
Not Shown
Not Shown
471-2004 - 7/18/2007
MTU, Indirect Mount per project 1
MTU spacer for pipe or bar mount 056-5155K 1
18″ heavy-duty UV-resistant tie wrap
10-32 x 1½″ pan head machine screw
10-32 nut, stainless steel 069-3011 2
#10 7/16” flat washer, stainless steel 069-3004 2
067-0030 2
069-103248
CS 2
for American Meter Company Gas Meters
Page 30
Tools Required
To mount the MTU to these meters, you
will need the following tools and
equipment:
• Cordless drill ⅜”, variable
speed, adjustable torque
settings
• #2 Phillips power screwdriver
bit
• Safety goggles
• Phillips screwdriver
• Slotted screwdriver
• 7/16″ nutdriver or boxwrench
• Diagonal side cutter
Installation Procedure
MTU Instruction
Step 4 - If the meter has a stamped metal
right angle drive foot, orient the drive foot
of the index to the position of the magnet
coupler of the sensor as shown. The
index foot should be over the open or flat
area of the coupler. It should not engage
the elongated slot/hole in the magnet
coupler. When properly installed, the
magnet coupler will simply push on the
outside of the index foot to rotate it.
Installing the Sensor Assembly
Before installing the Sensor Assembly,
anti-tamper, safety, and security
hardware must be removed from the clear
register cover.
Step 1 - Remove the existing clear
register cover by removing the four
screws. Set the clear register cover aside.
Discard the screws.
Step 2 - Remove the register by
removing the two screws. Set the register
aside. Discard the screws.
Step 3 - If the meter has a stamped metal
right angle drive foot (not a round plastic
pin), verify that the nylon spacer washers
are in place, as shown here.
Page 2
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