Overview
The ARTM-24 is a high-density multi-channel temperature monitoring instrument that supports up to 24 inputs for NTC thermistors, PT100/PT1000 RTDs, and thermocouples (K, T, J, E, N types). It is mainly used for temperature monitoring of low-voltage electrical nodes, transformer windings, and motor windings. Featuring 2 relay alarm outputs, optional ambient temperature and humidity measurement, and both RS485 wired and wireless communication, it provides a flexible and reliable solution for large-scale temperature monitoring applications.
Highlight
High-Density Multi-Channel
- 24 independent inputs
- NTC/PT100/thermocouple
- Individual channel on/off
Flexible & Reliable Alarm
- 2 relay outputs (NO)
- Two alarms per channel
- High/low + hysteresis
Dual-Mode Communication
- RS485 Modbus-RTU
- Optional wireless mesh
- Group ID 1-255, slave 61-255
Integrated T&H Measurement
- Optional T&H input
- Wide AC/DC power
- DIN rail mounting
Function
| Function | Description |
| Measurement Channels | 24, independently configurable |
| Input Types | NTC (10k/50k/100k), PT100/PT1000 (3-wire), Thermocouple K/T/J/E/N |
| Measurement Range | NTC: -40~140°C; PT100/1000: -200~850°C; Thermocouple: -200~1372°C |
| Accuracy | NTC: ±1°C; PT100/1000: ±1°C (-200~200°C), ±1% (200~850°C); Thermocouple: 1% |
| Alarm Outputs | 2 relays, NO, AC250V/5A, DC30V/5A |
| Temperature & Humidity Input | 1 optional channel, ambient T: ±1°C, H: ±3% |
| Communication | RS485 (Modbus-RTU), baud rate 2400/4800/9600/19200 bps; Optional wireless master/slave |
| Power Supply | AC85~265V or DC100-300V or DC12-30V, ≤2W |
| Mounting | DIN35 rail |
| Operating Environment | -20°C ~ +55°C, humidity ≤95% |
Specification
| Parameter | Value |
| Channels | 24 |
| Sensor Types | NTC (10k/50k/100k), PT100, PT1000 (3-wire), Thermocouple K/T/J/E/N |
| Measurement Range | NTC: -40~140°C; PT100/1000: -200~850°C; Thermocouple: -200~1372°C |
| Accuracy | Refer to Function table |
| Alarm Outputs | 2 relays, NO, AC250V/5A, DC30V/5A |
| Temperature & Humidity Input | Optional, 1 channel, accuracy T±1°C, H±3% |
| Communication | RS485, Modbus-RTU, 2400/4800/9600/19200 bps; Optional wireless master/slave |
| Power Supply | AC85~265V, DC100-300V, or DC12-30V, ≤2W |
| Mounting | DIN35 rail |
| Operating Temperature | -20°C ~ +55°C |
| Storage Temperature | -25°C ~ +70°C |
| Humidity | ≤95% non-condensing |
| Altitude | ≤2000m |
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Optional Accessories
- PT100 sensors (3-wire, 2m cable)
- NTC sensors (φ8/φ12, 2m/4m cable)
- Temperature & humidity sensor module
- Wireless communication slave module
FAQ
It supports NTC (10k/50k/100k), PT100, PT1000 (3-wire), and thermocouples K, T, J, E, N.
It has 2 relay outputs, both normally open, rated AC250V/5A or DC30V/5A.
An optional T&H input is available to monitor ambient temperature and humidity.
It supports RS485 wired communication (Modbus-RTU) and optional wireless communication (master/slave mode, group ID 1-255, slave address 61-255).
Configuration can be done via the included “ARTM-24 debugging software”, which features an intuitive interface.
It supports AC85~265V, DC100-300V, or DC12-30V to suit various field power conditions.
It adopts DIN35 rail mounting for easy cabinet integration.
Summary
The ARTM-24 temperature monitoring instrument offers high-density 24-channel input, compatibility with multiple sensor types, dual relay alarms, and both wired and wireless communication, providing an efficient and flexible solution for large-scale temperature monitoring. Its DIN rail mounting, wide-range power supply, and optional T&H measurement make it suitable for various industrial sites, enabling comprehensive equipment status awareness and early warning.
