The ARTM-8 is a high-performance multi-channel temperature controller designed for industrial applications requiring multi-point thermal supervision, such as in switchgear, dry-type transformers, and battery cabinets. It offers 8 independent temperature channels using PT100 sensors and delivers real-time data over RS485 Modbus-RTU communication. The device features programmable alarms, rapid temperature acquisition, and robust protection in harsh environments. Its user-friendly interface and flexible wiring make it ideal for integration into electrical and automation panels.

Technical Specifications

Feature	Specification
Model	ARTM-8
Temperature Channels	8 independent channels
Sensor Type	PT100 thermal resistance
Response Time	0.5 seconds
Relay Alarm Output	2 groups normally open relays (AC250V/5A or DC30V/5A)
Power Supply	AC 85–265V / DC 100–350V
Power Consumption	≤2W
Communication Interface	RS485
Protocol	Modbus-RTU
Baud Rate Options	1200 / 2400 / 4800 / 9600 / 19200 bps
Electrical Isolation	2kV / 1min AC effective value
Operating Temperature	-10°C to +55°C
Storage Temperature	-25°C to +70°C
Humidity	≤95% RH (non-condensing)
Altitude	≤2000 meters
Installation	Panel-mounted (dimensions not fully provided)

Functions

• Multi-point real-time temperature acquisition and control
• Over-temperature alarm and output switching via relays
• Sensor status detection and fault signaling
• RS485 communication for remote supervision and integration
• Modbus-RTU support for SCADA and energy management systems
• Fast response and stable performance in harsh environments

Applications

• Medium/low voltage switchgear temperature monitoring
• Dry-type transformer overheat protection
• Battery cabinet and energy storage thermal supervision
• Motor and cable joint monitoring
• Distribution boxes in power automation setups

Manufacturer Information

Acrel Co., Ltd., established in 2003, is a high-tech enterprise specializing in energy efficiency management and electrical safety solutions. With a comprehensive product line ranging from cloud platform software to sensors, Acrel offers smart energy meters, power sensors, and protection devices. Their products are widely utilized across industries such as electric power, communications, rail transit, petrochemical, and construction. In 2012, Acrel was listed on the Growth Enterprise Market with the stock code 300286.SZ. The company is committed to delivering innovative and reliable energy management solutions to its global clientele.