User's Manual

TDC
-1344-000 100T-CP Cathodic Protection Telemetry Module Installation Guide 1
Proprietary and Confidential
A cathodic protection system protects buried ferrous metal pipelines from corrosion. Cathodic protection
works by making a buried metal object slightly more cathodic (or negative electrically) when compared to the
surrounding soil causing the metal object to give up electrons, not ions, to the soil. A loss of ions occurs when
metal corrodes (rusts). Pipeline companies are required, by law, to maintain cathodic protection on their
pipelines, to monitor the pipe to soil voltage and keep records of the level of protection. Pipe to soil
measurements are traditionally taken manually once a year.
The 100T-CP cathodic protection telemetry module, coupled with a buried reference cell, takes voltage
measurements to monitor the status of the cathodic protection system. 100T-CP readings are collected daily
through a fixed network system, or on a periodic basis using a mobile/handheld system to detect trends and
allow the pipeline operator to correct problems in a timely manner, satisfying regulatory protection
requirements. The 100T-CP telemetry module was developed in cooperation with the Gas Technology
Institute.
100T-CP telemetry modules operate in two distinct modes which are mutually exclusive but similar to other
100S devices. It is possible to transition between mobile and fixed network modes using a command.
Fixed Network Mode. In fixed network mode, the telemetry module transmits monitoring information
over a ChoiceConnect Fixed Network system.
Mobile/Handheld Mode. In mobile/handheld mode, monitoring information and parameter changes are
completed using ChoiceConnect handheld and mobile products.
100T-CP Security
The 100T-CP helps utilities authenticate and verify that status readings are delivered from a recognized CP
module. As a component of the Itron 100S solution, the 100T-CP module supports the enhanced security
model in the Itron ChoiceConnect solution for both reading and programming. If the 100T-CP modules are
shipped without enhanced security enabled, the utility can inject security key sets into the 100T-CPs at a later
date.
Configuration and Programming
A FC300 handheld computer loaded with Field Deployment Manager (FDM) Endpoint Tools is required to
install and configure the 100T-CP telemetry module. See the Field Deployment Manager Endpoint Tools
Mobile Application Guide (TDC-0934) for configuration and programming information.
100T
-CP Cathodic Protection Telemetry Module Overview