DWYEROMEGA / OMEGA CN375-JC 1/16 DIN High-Limit Controller
The OMEGA CN375-JC is a 1/16 DIN high-limit controller designed for precise temperature monitoring and control. It features a clear display, easy-to-use interface, and reliable performance, making it suitable for various industrial applications where over-temperature protection is critical.
- Model
- Dwyer/Omega CN375-JC
- Calibration
- Available on request
- Price
- $110
- Status
- In stock
- RFQ ref
- CN375-JC
This unit
The OMEGA CN375-JC is a 1/16 DIN high-limit controller that monitors temperature inputs and de-energizes a normally energized SPDT latching relay when the process variable exceeds a user-selected setpoint. This design provides fail-safe over-temperature protection without programming. Manual reset via front-panel pushbutton restores the output relay. The controller accepts multiple sensor types
J, K, R, and S thermocouples plus 3-wire Pt100 RTD - making it adaptable across diverse thermal monitoring requirements. Digital LED display shows temperature in 1°C or 1°F resolution. Accuracy is ±1.5% FS + 1 digit for thermocouple inputs and ±1% FS + 1 digit for RTD inputs. The fixed deadband spans 1.5 to 2.5% FS, preventing relay chatter near setpoint. Output relay rating is 240 Vac at 2.5 A resistive or 1 A inductive load.
Technical Specifications
Input Types: J, K, R, S Thermocouples; 3-Wire RTD (Pt100)
Temperature Ranges: Type J (0–399°C / 0–799°F), Type K (–18–537°C / 0–999°F), Type R (0–2999°F), Type S (0–1699°C), RTD (0–399°C / 0–799°F)
Accuracy: Thermocouple ±1.5% FS + 1 digit; RTD ±1% FS + 1 digit
Resolution: 1°C or 1°F
Output Relay: SPDT latching mechanical, 240 Vac, 2.5 A (resistive) / 1 A (inductive)
Deadband/Hysteresis: 1.5–2.5% FS (fixed)
Power Supply: 110/230 Vac ±10%, 50/60 Hz
Power Consumption: ~3 VA
Input Impedance: 200 kΩ (thermocouple); 100 Ω max lead resistance (thermocouple), 2 Ω max per lead (RTD)
Key Features
High-limit shut-off control with fail-safe normally energized configuration
No programming required - setpoint adjustment via user-accessible controls
Manual front-panel pushbutton reset
Compact 1/16 DIN form factor for panel-mount installation
Digital LED display for real-time temperature readout
Multi-sensor compatibility eliminates need for separate controllers
Typical Applications
Environmental chambers
Industrial furnaces and ovens
Packaging machinery thermal protection
Process equipment over-temperature safeguards
Compatibility & Integration Sensor types: Type J, K, R, S thermocouples and Pt100 RTD. Operating environment: 0–50°C ambient, 90% RH non-condensing. Panel mounting with standard 1/16 DIN footprint.
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | 110/230 Vac ±10%, 2.5 A (resistive) or 1 A (inductive), 50/60 Hz |
Dwyer/Omega CN375-JC — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Dwyer/Omega CN375-JC. Calibration covers I/O channel accuracy per specification, analog output and input calibration to rated accuracy, and functional communication interface test (serial, Ethernet, fieldbus). All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Dwyer/Omega CN375-JC faults: blown I/O fuses, failed analog modules, power supply capacitor failure. Common faults include blown I/O protection fuses, failed analog I/O modules, power supply capacitor failure, and serial or Ethernet communication port damage.
Dwyer/Omega CN375-JC price
This Dwyer/Omega CN375-JC is listed at $110. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Dwyer/Omega CN375-JC calibration cost
NIST-traceable calibration for the Dwyer/Omega CN375-JC is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers I/O channel accuracy per specification, analog output and input calibration to rated accuracy, and functional communication interface test (serial, Ethernet, fieldbus). Turnaround is 1 to 3 business days after receipt. See full calibration details →
