CH series temperature controller
CH402 K/J/E/T type thermocouple, PT100 relay (250V/5A)
Basic PID, alarm output oven, small heating equipment
CH408 multi input (thermocouple/thermistor)
Relay+SSR driven dual PID, communication (optional RS485) injection molding machine, temperature control system
CH902 Universal Input (Supports Voltage/Current) Analog Output (4-20mA)
Modbus communication, program controlled industrial automation centralized control
CH1000 high-precision PT100 (± 0.1 ℃) dual relay+analog data recording,
PID self-tuning laboratory, precision constant temperature bath
2、CH temperature controller、CH program controller and CH High precision controller Detailed explanation of core functions
1.CH High precision controller Input configuration
CH High precision controller's Thermocouples: K-type (0-1300 ℃), J-type (0-1000 ℃), PT100 (-200-600 ℃).
Voltage/current: 0-10V, 4-20mA (jumper or parameter setting required).
2. CH temperature controller Control algorithm
CH temperature controller's PID control: supports automatic tuning (AT) and can manually adjust parameters (P=proportional band, I=integral time, D=derivative time).
CH temperature controller's ON/OFF control: The hysteresis (Hy) is adjustable to prevent frequent relay actions.
3. CH temperature controller Output method
Relay output: The contact capacity is usually AC 250V/5A, which directly controls the contactor or small heater.
SSR driver: DC 12V/30mA output, suitable for solid-state relay control.
Analog output: 4-20mA or 0-10V, used to adjust frequency converters or proportional valves.
4. CH program controller Communication and CH program controller Expansion
CH program controller's Alarm output: can set upper limit, lower limit, deviation alarm, relay or optocoupler isolation.
CH program controller Selection suggestions
CH program controller Environmental requirements:
CH High precision controller Temperature: -10~50 ℃, humidity<85% RH (avoid condensation).
CH High precision controller Load matching:
Relay output is only suitable for resistive loads (such as heating tubes), while inductive loads (motors) require an intermediate relay.
CH program controller Expansion requirements:
Choose CH902 for multi-stage program control and CH1000 for high-precision control.
