User's Manual

Model: R900-v3 Advanced Compliance Solutions FCC ID: P2SNTGSRFV3
Installation guide
The R900V3 MIU is designed for use with four types of encoder registers: Neptune ARB V, ProRead,
Sensus ECRII & Invensys ECRIII. Before installing an MIU, the encoder registers must be correctly wired
and/or programmed to work with the MIU.
Note: When a ProRead encoder register is used, the ProRead register must be programmed for
three-wire mode.
If the MIU will be connected to a new ProRead encoder register, or if a three-conductor cable is already
connected to a ProRead encoder register, ensure that the ProRead register is programmed for three-wire
mode using the ProRead programmer and its RF/MIU 6, 8, or 10 ID TDI format. This can be
accomplished through the ProRead receptacle before removing the receptacle.
Wiring the encoder register
Run a three-conductor cable from the encoder register to the MIU.
Refer to the steps below.
Connect the 3-conductor wire to the encoder register’s terminals per the manufacturer’s instructions,
using the color code
in Table 1.
1. Thread the cable around the strain relief posts of the encoder.
2. Apply moisture protection compound to the terminal screws and exposed wires. (Neptune
recommends Dow Corning

Compound #4).
3. Snap the cover onto the encoder register.
4. Proceed to the section entitled “Installing the MIU.”
Table 1
Encoder Register
Wire Color / Encoder Terminal
Neptune ARB V Black / B Green / G Red / R
Neptune ProRead Black / B Green / G Red / R
Neptune E-Coder Black / B Green / G Red / R
Sensus ECRII Black / R Green / B Red / G
Testing the MIU Installation
After the MIU has been installed and wired, follow these steps to verify that the MIU is working properly:
Power up the handheld unit (HHU) test device and start the testing
program provided.