©201
7
Nelson Heat Tracing Systems
www.nelsonheaters.com
GA2497 Rev.
5
4
Introduction
CM-2201/CM-2202
1.1
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.
The CM-2202 can monitor/control two heating circuits in
those same locations.
This manual provides information pertaining to the Installation,
operation, testing, communications and maintenance of these
controllers. See Appendix A for detailed specifications
1.2
Getting Started
The
CM-2201/CM-2202
is
typically
connected to external RTDs,
power or communication
based
on Appendix B and C.
Detailed
set-
up
of
the
operating/control/monitoring program is entered
throughout the following sections.
For addition help, call Nelson
T
echnical
S
upport or follow the
Troubleshooting
section.
Содержание NELSON HEAT TRACE CM-2201
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