Home > Products > The CM-2001 - Single Point Circuit Management System

System

The CM-2001 is a microprocessor based digital control and monitoring system that has been specifically designed for stand-alone or networked heat tracing applications. This system provides temperature control and heater cable monitoring while communicating additional information to operations personnel such as temperature alarms, voltage and current alarms, ground fault leakage, sensor failure and communications failures.

Components

This system is housed in a NEMA 4X coated steel or stainless steel enclosure that can be wall or rack mounted. The system is available in single or dual pole solid state heater switching and is environmentally hardened for use in various plant locations. The standard versions of the CM-2001 can be installed in Division 2 hazardous locations without special requirements. Up to 32 individual systems can be connected to a single RS-485 data highway allowing communications to a host device. The CM-2001 is fully compatible with Nelson's CM.COMM PC based communications software or can communicate with any Modbus® compatible device. All alarms and control functions can be accessed from the central location.

Features

Easy To Use Interface
The 2 line, 32 character, alphanumeric LCD display enables the use of English language prompts for setpoint entry and operation. There are no cryptic codes or key press combinations to remember.

On/Off Or Proportional Control
The desired control mode can be easily selected via the front panel user interface.

Ground Fault Alarm And Trip Settings
Separate alarm and trip settings for ground leakage current allow alarming of developing faults prior to circuit interuption.

Dual RTD Input
The optional second RTD can easily be configured in a variety of ways, including Backup and High Temperature Cutout.

Programmable Auto Test Cycle
The user can select an interval from 1 to 24 hours to have the unit automatically check the heater operating current and ground fault conditions. This allows problems to be detected and fixed before the heating system is actually needed.

Host Communications
The RS-485 Modbus® communications capability is included as a standard feature. There are no expensive "daughter boards" or firmware required.