Installation Guide

Quiet Mode
Meter manufacturers can configure the Cellular 500W for Quiet Mode after
programming and direct mounting the Cellular 500W in a factory.
The Cellular 500W is awakened from Quiet Mode and enters Run Mode in one of the
following ways:
Counting two pulses. The pulses are counted internal to the Cellular 500W while it
is in Quiet Mode.
Receiving a two-way command, such as a Read using FDM.
If a Cellular 500W installed in Quiet Mode is not bubbling up SCM+ messages, it may be due
to zero consumption on the Cellular 500W, such as a vacant or vacation home. Initiate a two-
way command (for example, perform a Read with FDM) before removing the unit.
Battery Life
The Cellular 500W is powered by a single non-replaceable, long-life lithium batteries and has
an expected battery life of 20 years, dependent on use case.
Low Battery
Cellular 500Ws include a low battery indicator that helps utilities proactively plan and manage
field module replacements.
Events and Alarms
The events and alarms available to a Cellular 500W vary based on the mode it is operating in.
Extended Alarm Flag
This is retrievable with two-way communication.
Register Error Flag
The Register Error flag sets if the Register Error Detected flag is active for 24 hours.
The Register Error Flag remains active for 40 days in Mobile Mode.
Register Error Detected
Register Error Detected indicates that the Cellular 500W is not communicating with the
register/meter. The event or alarm flag automatically clears after the Cellular 500W
receives a successful read from the register.
Note: The Register Error Detected flag may be an indicator of a damaged register.
Low Battery Warning
Cellular 500W Remote Module Installation Guide 1 Introduction
October 11, 2021 815-0618-00 REV 000 Itron, Inc. Page 10 of 44
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