Introduction CM-2201
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©2015 Nelson Heat Tracing Systems
www.nelsonheaters.com GA2497 Rev. 2
1.0 Introduction
The Nelson Heat Trace CM-2201 is designed to monitor and
control one heating circuit in ordinary and Class I, Division
2, Class I, Zone 2, and Zone 2 hazardous locations. This
manual provides information pertaining to the installation,
operation, testing, communications and maintenance of
this device. See Appendix A for additional details.
1.1 Getting Started
The CM-2201 should be connected to external RTDs; power
and communication based on Appendix B and C. If any
problems occur, call Nelson technical support or follow the
Troubleshooting section.
