CHB402/702/902 Dual Output PID Temperature Controller 220V

CKCTINNER CHB Series Dual Output PID Temperature Controller

Take precise control of your industrial and commercial heating or cooling processes with the CKCTINNER CHB402/702/902 Digital Temperature Controller. Featuring a dual output design — Electromagnetic Relay + SSR (Solid State Relay) — this intelligent thermostat delivers exceptional versatility across a wide range of applications. With universal sensor input compatibility and advanced PID or ON/OFF control modes, this controller is engineered for professionals who demand accuracy and reliability.

Made in Mainland China.

Key Features

• Dual Output: Electromagnetic Relay + SSR output (CHB402/702/902); single relay or SSR output available on CHB401
• Universal Sensor Input: Supports Thermocouple types K, J, R, S, B, E, N, T, W5Re/W26Re, PLII; RTD: Pt100, JPt100; Voltage: 0–5V, 1–5V; Current: 0–20mA, 4–20mA
• High Accuracy: ±0.5% FS ± 1°C for dependable, repeatable measurements
• PID & ON/OFF Control: Flexible control methods to match your process requirements
• Clear Digital Display: 8-segment, 4-digit LED display with LED indication for at-a-glance monitoring
• Wide Operating Range: Max measuring temperature 120°C and above; operating temp 0–50°C (32–122°F)
• Multiple Alarm Modes: Up to 12 alarm configurations including deviation high/low, band, process high/low, and hold action variants
• Versatile Mounting: Standing or wall-hanging installation to suit your setup
• CE Certified: Meets CE standards for safety and quality assurance
• Supply Voltage: 220V AC (under 10VA power consumption); also supports AC24V and DC24V variants
• Operating Humidity: 30–85% RH max, non-condensing

Technical Specifications

Alarm Configurations

The CHB series supports a wide range of alarm modes (default: 1 alarm; 2-alarm versions available by custom order):

• N: No alarm
• A: Deviation low | B: Deviation high | C: Deviation high/low | D: Band
• E: Deviation high with hold action | F: Deviation low with hold action | G: Deviation high/low with hold action
• H: Process high | J: Process low | K: Process high with hold action | L: Process low with hold action

Ideal For

Industrial process control, HVAC systems, laboratory equipment, ovens, incubators, kilns, aquariums, and any application requiring precise temperature regulation.

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Frequently Asked Questions

Q: What is the difference between the CHB401 and the CHB402/702/902 temperature controllers?

A: The CHB401 is a single-output model — you choose either a Relay or SSR output. The CHB402, CHB702, and CHB902 are all dual-output models that include both an Electromagnetic Relay output AND an SSR (Solid State Relay) output, giving you greater flexibility for controlling multiple devices or processes simultaneously.

Q: What types of temperature sensors are compatible with this controller?

A: The CHB series supports a wide range of universal inputs including thermocouples (K, J, R, S, B, E, N, T, W5Re/W26Re, PLII), RTDs (Pt100, JPt100), voltage signals (0–5V, 1–5V), and current signals (0–20mA, 4–20mA), making it compatible with virtually any standard industrial sensor.

Q: Can this temperature controller be wall-mounted?

A: Yes. The CKCTINNER CHB series supports both free-standing and wall-hanging installation styles, offering flexible placement options to suit your workspace or control panel setup.

Q: Does this unit support PID control?

A: Absolutely. The CHB402/702/902 supports both PID (Proportional-Integral-Derivative) and ON/OFF control methods. PID mode offers highly accurate, stable temperature regulation, while ON/OFF mode provides a simpler, threshold-based control option.