ACREL Multi-Channel Temperature Monitor

The ACREL Multi-Channel Temperature Monitor Series is designed for monitoring temperature at multiple points within electrical and industrial equipment. Rather than requiring a separate temperature monitor for each measurement point, the range combines multiple RTD inputs into a single panel-mounted instrument.

The available models provide 4, 8 or 24 measurement channels, allowing the controller to be selected according to the number of temperature points required.

The ARTM-4 is particularly suited to multi-point monitoring in low-voltage distribution equipment and can accept Pt100 or Pt1000 inputs. The manufacturer specifically identifies applications including electrical contacts, motor windings and transformer windings.

The ARTM-8 and ARTM-24 are based around Pt100 temperature measurement, with two normally open alarm relay groups and RS485 Modbus-RTU communication. The manufacturer describes the ARTM-8/24 series as a multi-input temperature controller for temperature measurement and control, particularly in thermal and hydro power applications.

How it works

• Temperature sensors are connected to the controller's individual measurement inputs.
• The instrument measures the temperature at each connected point and presents the readings on its local display.
• Configured alarm outputs can be used to signal abnormal temperature conditions.
• Models with RS485 communication can transmit temperature data using Modbus-RTU to a compatible monitoring, control or automation system.
• Multiple temperature points can therefore be supervised from one centrally mounted instrument.

Why choose this product?

• Multiple channel options - 4, 8 and 24-channel models allow the controller to be matched to the number of monitoring points required.
• Local temperature indication - readings can be viewed directly at the installed controller.
• Alarm monitoring - relay outputs provide a practical way to signal configured temperature alarm conditions.
• RS485 communication - supported models can communicate with supervisory and automation systems using Modbus-RTU.
• Compact panel installation - the instruments are designed for installation within control panels and electrical equipment.
• Suitable for electrical equipment monitoring - the range can be used to monitor temperature at multiple points where temperature rise may indicate abnormal operating conditions.

Benefits

The main benefit of the ACREL Multi-Channel Temperature Monitor is the ability to consolidate several temperature measurements into one monitoring instrument. This can simplify panel layouts and provide operators with a central point for viewing temperature conditions.

For systems requiring remote monitoring, the RS485 Modbus-RTU interface available on the relevant models provides a straightforward method of connecting the temperature monitor to a wider control or monitoring system.