CH902 4-Digit Dual Display PID Temperature Controller (96mm x 96mm x 100mm)
Economical, fully programmable PID temperature controller. OEM discounts available.
Standard Specification
- Input: Selectable between Thermocouple, Pt100, Current & Voltage.
- Control: Factory set to PID control. Easily programmed to On/Off control.
- Alarms: Dual Programmable Alarm.
- Output: Relay Contact or Solid State Relay (SSR).
- Power Supply: 100/240 V AC or 24 V AC/DC.
- Operating Temperature: 0 to 50ºC.
- Operating Humidity: < 80%.
- Fully programmable from the front fascia.
- 2-year warranty.
Dimensions
- (CH902) 96mm (W) x 96mm (H) x 100mm (D) (1/4 DIN)
Main Control
- PID or On/Off control which is fully programmable. The auto-tuning function enables the PID terms to be automatically calculated.
- Heat / Cool PID control
User Selectable Input
- Conductor Type K (range 0°C ~ 1372°C)
- Conductor Type J (range 0°C ~ 1200°C)
- Conductor Type R (range 0°C ~ 1769°C)
- Conductor Type S (range 0°C ~ 1769°C)
- Conductor Type B (range 0°C ~ 1820°C)
- Conductor Type E (range 0°C ~ 1000°C)
- Conductor Type N (range 0°C ~ 1300°C)
- Conductor Type T (range 0°C ~ 350.0°C)
- Pt100 (-199.9°C ~ 649.0°C)
- Voltage (0~5V, 1~5V, 0~10V, 2~10V)
- Current (0~20mA, 4~20mA)
Control Output
- Relay Output (Standard)
- Solid State Relay (SSR) Logic Output
- Current Output – 0~20mA or 4~20mA, Voltage Output – 0~5 V or 1~5 V
Alarm Output
- Dual Alarm supplied as standard, factory set as deviation high and deviation low. Fully programmable via front fascia High/Low, Process or Band Alarms, with or without hold function.
Serial Interface
- RS485, MODBUS/ RTU Protocol
Power Supply
- 100-240 V AC 50~60Hz (Standard)
- 21-48 V AC / DC. Consumption: 4W (21 V AC/DC), 5W (48 V AC/DC)
Also available:
- CH102: 48mm (w) x 48mm (h) x 100mm (1/16 DIN)
- CH402: 48mm (w) x 96mm (h) x 100mm (1/8 DIN)
- CH502: 96mm (w) x 48mm (h) x 100mm (1/8 DIN)
- CH702: 72mm (w) x 72mm (h) x 100mm (3/16 DIN)

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![]() (SSR) Solid State Relay | ![]() (PPC) Budget Pt100 Sensor c/w Crimp Seal | ![]() (TPM) Mineral Insulated Thermocouple Sensor with Pot Seal |













