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Guardian Controls Product Catalogue
26th March 2010
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Industrial Heat Trace Controls
Guardian Heat Tracing Control systems provide flexible, cost effective, integrated control solutions for plants that require from 4 to 4000 heater circuits.
HT919 Plant Control Units monitor pipe temperatures and current, control the heaters and generate alarms for eight heat tracing circuits. The HT919 always controls autonomously, but may be network connected so that measured values and alarms may be simultaneously communicated to the HTPM-8 Panel Monitor and to a central supervisory 'Consultant' or other PC based SCADA system.
HTM-8 Panel Monitors communicate with up to eight HT919 controllers and are mounted on the electrical panel door containing these controllers. This panel is also fitted with an optional power meter to measure the total kWh used by all the circuits associated with the electrical panel. The HTPM-8 panel monitor allows passcode protected adjustment of all controller settings and may be optionally connected to a local area network using Modbus RTU over TCP / IP protocol.
'Consultant' Software provides central Supervisory / Control And Data Acquisition (SCADA) facilities for the overall Heat Tracing plant installation. Wide area network or direct modem access to the system allows a remote user to view all site information and modify settings and control modes for all controllers, provided the appropriate security password level has been entered.
For Heat Tracing System Overview see ...
For Heat_Tracing_Control