Installation Manual

Mi.Node M Installation Manual
Mueller Systems – Proprietary
Page 4
1. Introduction
The Mueller Systems Mi.Node M is intended for indoor and outdoor use as an
unattended Automatic Metering Infrastructure (AMI) and control device. The Mi.Node
M is fully self-contained and battery powered device with no user accessible controls.
The Mi.Node M for Residential Metering (“Mi.Node M”) is a
device that incorporates a microcontroller, 915MHz ISM band
transceiver (simplex operation), and battery (DC power supply)
for the purpose of logging and forwarding water meter readings
to the Mueller Systems servers. The readings are forwarded to
server via other Mi.Node M, Mi.Hub data collectors, or Smart
Meters at assigned times. The Mi.Node M will also autonomously
send messages to the server when various events or alert
conditions are detected, such as potential leak or theft of
service.
Meter reading interval is remotely settable. Information
retrieved from the meters registers are temporarily stored within the Mi.Node M’s solid-
state memory. On a specified interval, the Mi.Node M will automatically transmit this
information to the Mueller Systems AMI server via other meters or MIHUBs using the
Radio Frequency (RF) network. The Mueller Systems AMI server analyzes and archives
the readings.
The contents of this installation manual are intended for technically qualified personnel
of water and energy distribution utilities who have been trained and are technically
qualified in local safety procedures for installation of the device.
2. Construction
The Mi.Node M product consists of a printed circuit board which is encapsulated to
provide complete protection against shock and water intrusion. The enclosure is made of UV
stable, high density thermoplastic and is completely waterproof. The UV stable,
thermoplastic housing design provides a compact, waterproof enclosure that is lightweight
and easy to handle and install. The Mi.Node M has integral mounting brackets for both
pit and wall installations. One D size lithium battery provides plenty of power for
reading the register and sending RF data.
In order to protect the AMI device electronics 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 combine to provide a formidable barrier of
protection against water intrusion.
Internal wire strain relief has been built into the housing to protect the wire
connections against damage. Please note that meters or registers should never
be carried while supported only by the Mi.Node M transmitter or wiring.
A monopole antenna is located in the upper housing to provide powerful RF
communication.
A single D cell long life Lithium battery is located in the lower housing which
provides power for register interrogation and data transmission for a calculated
battery life of up to 20 years.