Overview
The Omega CN4501TR temperature controller is a professional-grade DIN rail device built for demanding HVAC, refrigeration, and industrial temperature control. As part of Omega’s established CN4000 series, this controller combines robust field performance with straightforward setup and operation. It is suitable for retrofit installations and new system builds requiring dependable, tested equipment.
Key Features
- DIN rail mount — standard 35mm rail installation
- Dual 4-digit LED display — separate readouts for process value (PV) and setpoint (SV)
- Flexible input options — supports thermocouple, RTD, and universal signal inputs (model dependent)
- Precise control — ±0.3% full-scale accuracy on dedicated input models
- Wide operating voltage — 100–240 VAC supply (50/60 Hz); optional 24 VDC available
- Fuzzy logic control — advanced temperature profile tuning and curve-fitting algorithms
Technical Specifications
- Input Type: Thermocouple, RTD, DC voltage, DC current (model dependent)
- Display: Dual 4-digit 7-segment LED (red PV, green SV)
- Display Resolution: 1.0 or 0.1 degree (dependent on configuration)
- Accuracy: ±0.3% FS (thermocouple/RTD), ±0.2% FS (universal input)
- Sample Rate: 8 per second
- Supply Voltage: 100–240 VAC (−15%, +10%); 50–60 Hz
- Alternate Supply: Optional 24 VDC
- Power Consumption: 3–6 W (dependent on input type)
- Operating Temperature Range: −10 to 60°C (14 to 140°F)
- Humidity (Non-Condensing): 0 to 90%
- Mounting: 35mm DIN rail
- Manufacturer Series: CN4000 (CN4501 variant)
- Certifications: CE marking (regulatory compliance per EU machinery directive)
Typical Applications
- HVAC thermostat replacement and retrofit
- Refrigeration cabinet and cooler temperature control
- Industrial oven and furnace setpoint regulation
- Process heating and cooling loops
- Laboratory and clean-room temperature management
- Building automation temperature nodes
Compatibility & Replacements
Compatible With
- Standard DIN rail (35mm) mounted enclosures and control panels
- Thermocouple types: J, K, T, E, R, S, B (input-dependent)
- RTD sensors (Pt100, Pt1000)
- Generic DC voltage and current signal inputs (10 mV to 10 V, 4–20 mA ranges)
- Relay and contactor modules for output control
- Standard industrial HVAC and refrigeration systems
Replaces / Drop-In Replacement For
- Omega CN4400 series controllers (in selected configurations)
- Other CN4000 series variants (verify exact model match with Omega documentation)
- Legacy mechanical and analog thermostat units (wiring reconfiguration may be required)
Works With
- Analog thermocouple and RTD sensor networks
- Manual control via front-panel buttons and LCD navigation
- Relay-based on/off and proportional control outputs
- Standard industrial electrical wiring (AWG 26–12, crimped terminals per manual)
- Building management systems via discrete inputs/outputs
