For Wired Monitoring of Current on Heat Trace Circuits

What is the CMI Module for Wired Monitoring of Current on Heat Trace Circuits (CMI- CHC)?

It is a Centralized, PLC / PC / Web based Solution, designed to provide Maintenance and Operations personnel at industrial sites with continuous access to critical, real-time information on Heat Trace operation; status (on/off) and current draw. This Module helps identify and resolve heat trace operation issues before process interruptions occur, exorbitant premature repair costs are incurred, safety parameters are exceeded, or catastrophic failures occur.

The CMI (Control, Monitor, Inform) Module for Monitoring Current on Heat Trace Circuits (CHC) can monitor up to 20 circuits. The CMI-CHC Panel is wired directly to the Heat Trace Breaker Panel. All current flow information is logged and saved by the PLC on an SD Card and exported every 6 hours to a PC or Server as an Excel and .csv file for trending analysis, documentation, and historic analysis of Heat Trace operation using a browser based CMI data analysis tool.

What It Does

The CMI-CHC Module delivers all monitoring information, in real-time, through a PC browser based Webpage (shown above), delivered by the PLC over an Ethernet connection. All current flow and status information is shown with corresponding Alarms for Low / High ambient temperature and low amperage draw. The Remote Operator Utility in the CMI Module, allows PC Users to directly access the PLC, to acknowledge Active Alarms, and access detailed Alarm Information and Resolution Hints.

How It Works

The CMI Module for wired Monitoring of Current on Heat Trace Circuits (CHC) uses a baseline of User defined set-point values for temperature, to provide a Low Alarm or High Alarm when ambient temperature readings are below or above expected heat trace operation parameters. With this information Operators can confirm that Heat Trace circuits are operating as expected to protect equipment from freezing, and Heat Trace lines from damage from high equipment operating temperatures.  Operating ambient temperature and current flow data, and alarms, are synthesized into a PC accessible webpage (see above), for an “at a glance” view of heat trace operating status. Stored logs can be accessed by a Browser based Analysis Tool, CMIData, to generate information listings, reports, and trend graphs.

CMI Modules provide 2 connections for PC access to the PLC for monitoring and control, and one connection for the Customer’s web server to provide browser based access to the monitoring webpage. A fourth connection is reserved by DYMOCON for Service and Support of the CMI Module, and off-site backup of logged data. The CHC module is delivered installed at the Site, as a fully integrated solution.  CMI Modules are wired or wireless management solutions that will enhance industrial systems and help lower Plant Operating Costs, Capital Expenditures, and Lost / Down Time, while improving Risk Management and Productivity.

Download a PDF about the CMI MODULE CHC [1.79 MB]