Installation Instructions

Table Of Contents
MTU Instruction
for Neptune and Schlumberger Water Meters
Purpose & Scope
This instruction provides wiring information for use in connecting a STAR MTU to Neptune
and/or Schlumberger water meters (all sizes) equipped with ARB-V, Auto/ProRead, or
E-Coder PLUS registers.
ARB-V or Auto/ProRead
MTU Cable
ARB-V or
Auto/ProRead
Register
Red B (Black)
Black G (Green)
White R (Red)
Notes:
Auto/ProRead registers must be
programmed by the manufacturer for
3-wire mode.
E-Coder PLUS
MTU Cable
E-Coder PLUS
Register
Red B (Black)
Black G (Green)
White R (Red)
Notes:
E-Coder Plus registers require a
special purpose NTG MTU (Hexagram
Part Number 501-11586D) to make
use of the E-Coder’s advanced leak,
tamper and reverse flow detection
capabilities.
471-2010 - 8/6/2006
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