Overview
The Omega CN9211 temperature controller is a 1/16 DIN autotune controller from the CN9000 series, engineered for accurate temperature control in industrial automation systems. Rated for 115V, 50/60 Hz operation with 6VA power consumption, this unit provides single-pole double-throw (SPDT) relay output for switching heating or cooling elements. Its microprocessor-based design combines PID control with approach control (PDPI) for stable operation during startup and steady-state regulation.
Key Features
- Compact Design: 1/16 DIN panel mount form factor fits standard industrial enclosures
- Autotune Function: Automatic PID tuning optimizes control parameters for your process
- Multiple Input Options: Selectable thermocouple types (B, E, J, K, L, N, R, S, T) or 2-wire RTD
- High Accuracy: ±0.25% temperature control with 0.1° resolution up to 200°
- Dual Setpoint Capable: Second setpoint and output available as standard configuration
- Flexible Control Output: SPDT relay rated to 250VAC for direct element switching
Technical Specifications
- Input Supply: 115V, 50/60 Hz
- Power Consumption: 6VA
- Control Accuracy: ±0.25% of displayed value
- Temperature Resolution: 0.1°
- Display Range: Up to 200° (°C/°F switchable)
- Input Type: Thermocouple (8 types) or 2-wire RTD
- Output 1: SPDT Relay
- Output Voltage (max): 250VAC
- Operating Temperature Range: 4°C to 50°C
- Panel Cutout: 1/16 DIN standard
- Display Type: LED digital display
Typical Applications
- Industrial oven and furnace temperature management
- Plastic injection molding and extrusion process control
- Heat treat and thermal processing systems
- Laboratory and pilot-scale reactor temperature regulation
- Machine tool thermal monitoring and coolant temperature control
- Food processing and cooking equipment temperature maintenance
Compatibility & Replacements
Compatible With
- Standard 115V industrial control circuits and panel installations
- Type K, Type J, and all supported thermocouple types for direct sensor integration
- 2-wire RTD temperature sensors (Pt100, Pt1000)
- Heating and cooling relay contactors rated for 250VAC
- Industrial automation and process control systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The CN9211A designation is the primary variant; confirm your exact configuration matches before substituting in active systems.
Works With
- Thermocouple and RTD temperature sensors (all OMEGA-standard types)
- Standard industrial 115VAC power supplies and UPS systems
- Relay-based control loops and PLC input modules
- SCADA and HMI systems via discrete I/O or serial communication (if available on specific variant)
