Hersey Meters HOTRODPLASTCV1 AMR Transmitter User Manual PRODUCT GUIDE2
Hersey Meters AMR Transmitter PRODUCT GUIDE2
User Manual
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HERSEY METERS PRODUCT GUIDE FOR THE AMR TRANSMITTER
OVERVIEW
This document is intended to assist professional installers with Hersey Meters’ AMR transmitters. It
provides instructions on how to successfully connect, operate, and troubleshoot the transmitters. Hersey’s
remote meter reading transmitters were designed with an “easy to install approach” for utilities. The
SSDHOTRODMETALV1 or SSDHOTRODPLASTCV1 allow the utility to receive data from any Hersey
water meter equipped with a Translator register. The transmitter collects data from the register and
transmits it via radio frequency (RF) to be collected by a mobile receiver.
PRODUCT FEATURES
• The thermoplastic housing design reduces material and helps eliminate air space within the transmitter.
(Figures 1 and 2)
• Mounting features include two holes for wall installation and a 1/2 inch female PVC pipe fitting for easy
pit installation. (Figure 2)
• The transmitter units are molded from
yellow or gray plastic so that the high
power and low power units are easily
distinguishable. The high power unit
should only be used within a metal
meter box. (Figures 1 and 2)
• A quarter wavelength whip antennae is
utilized due to the small amount of
power it consumes.
• Two AA Lithium batteries are utilized
that will transmit readings every 4
seconds for a calculated battery life of
over 10 years.
• The electronic design utilizes the latest
in RF microchip technology which
reduces cost and increases reliability
when compared to older RF designs.
• In order to protect the AMR transmitter from moisture ingress, the design incorporates the use of
thermoplastic injection molded housings, rubber seals, a potting compound that completely incases the
internal electronics and a coated circuit board which provides the final barrier of protection. Internal wire
strain relief has been built into the housing to protect the wire connections against damage. Please note
that this does not mean meters or registers can be carried while supported only by the AMR transmitter or
wiring.
CONNECTING AND OPERATING THE HERSEY AMR TRANSMITTER
Figure 1
HIGH POWER Figure 2
LOW POWER
PVC Installation Slot
Wall Installation
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The AMR transmitter is preprogrammed prior to being attached to the
meter. All pit set units come with either 5’ or 25’ of wire attached and
potted at the factory as specified. If a retro fit is required, the wires
should be spliced to the existing wires coming from the register. Wire the
red to red, green to green, and black to black wires using 3M UY2
Scotchlok splices with the E-9Y application
tool. (Figure 3) If a new wall unit is being
installed it can be directly mounted to any
surface by using the holes shown in Figure 2
and the appropriate screws. New pit
installations can use the mounting method described above or a ½” PVC
pipe can be used in conjunction with the PVC Installation Slot shown in
Figure 2. This feature allows for quick easy installation without the use of
zip ties, wraps, tape, or adhesives. Two solid stops were included in the
PVC Installation Slot in order to prevent the wire from being pinched when
the PVC pipe is installed. For best performance the top of the transmitter
should be placed approximately 6 inches below the pit lid. Please note that the AMR transmitter will only
support the Hersey Translator register and will not work with Hersey’s ER, pulse registers. A TRU-Read
remote display can be used in conjunction with the Translator register and AMR transmitter for visual
remote readings if desired. Refer to TRU-Read installation instructions below to attach both devices.
When wiring the TRU-Read to the Translator you must connect the red wire to the red terminal, the green
to green, and the black to black. (Figure 4) To attach the AMR transmitter, wire the red wire to terminal #1,
the green wire to #2, and the black wire to terminal #3 on the TRU-Read. (Figure 4) Once the transmitter is
attached it will begin sending out data automatically. Please note that Hersey Meters’ AMR transmitter
and TRU-Read should never be disassembled or user serviced.
AMR TRANSMITTER TROUBLE SHOOTING
PROBLEM POSSIBLE CAUSE
POOR RANGE CHECK ORIENTATION OF THE
HOT ROD ANTENNAE
CHECK THE RECEIVER ANTENNAE
CHECK FOR INTERFERENCE
NOT TRANSMITTING CORRECT
DATA
CHECK WIRING CONNECTIONS
CHECK WIRES FOR SHORT
CHECK FOR INTERFERENCE
CHECK DISTANCE TO RECEIVER
CHECK TRANSLATOR STATUS
NOT TRANSMITTING CHECK POWER ON AMR TRANSMITTER
FCC INFORMATION
The AMR transmitters operate in the license exempt 902 MHz to 928 MHz ISM band and are certified for operation in
the US under FCC Part 15. The FCC ID numbers for the high power and low power versions are
SSDHOTRODMETALV1 and SSDHOTRODPLASTCV1. Information pertaining to their certification can be found
on the web at WWW.FCC.GOV.
Figure 4
Figure 3