Overview
The Love Controls 290-185 is a temperature process controller designed for HVAC and refrigeration systems. Built by Love Controls (a Dwyer Instruments division), this compact controller delivers reliable temperature measurement and control across a 0–200°F operating range. The 290-185 is ideal for cold storage, walk-in coolers, and precision temperature-critical applications requiring stable set-point management and alarm functions.
Key Features
- 0–200°F temperature sensing range
- Compact panel-mount or DIN-rail compatible form factor
- Thermocouple or resistance temperature detector (RTD) input support
- Dual relay outputs for heating and cooling control
- Adjustable high and low alarm set points
- Digital display for real-time temperature readout
- Manual push-button interface for programming
Technical Specifications
- Temperature Range: 0 to 200°F
- Display: Digital LED/LCD readout
- Input Type: Thermocouple or RTD compatible
- Outputs: Dual relay (SPDT or SPST configuration)
- Alarm Functions: High and low set-point alarms with latching option
- Power Supply: 115/230 VAC (verify with specific configuration)
- Mounting: Panel or DIN-rail mount
- Enclosure: NEMA 4X stainless steel or powder-coated steel
- Operating Temperature: 32–122°F ambient
- Dimensions: Compact 1/16 DIN or ¼ DIN format (approximately 3″ W × 3″ H)
- Weight: Less than 1 lb
- Certifications: CE, cUL/UL listed
- Series: Love Controls Omega
- Condition: Used, fully functional
Typical Applications
- Walk-in freezers and cold storage temperature monitoring and control
- Commercial refrigeration systems (grocery stores, food service, warehouses)
- HVAC thermostat backup or zone control in critical environments
- Laboratory and medical refrigeration (vaccine storage, sample preservation)
- Industrial process cooling with temperature-dependent startup/shutdown logic
- Aquaculture and horticultural climate control systems
Compatibility & Replacements
Compatible With
- Standard thermocouple sensors (Type J, K, T, E, R, S, B, N)
- Pt100 and Pt1000 RTD temperature probes
- Dual set-point relay control circuits (heating/cooling zones)
- Modbus and Lovelink™ serial communication networks
- DIN-rail or panel enclosure mounting systems
- Standard 115/230 VAC power circuits
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering. Love Controls controllers are typically interchangeable within the same series, but wiring configuration and sensor type must match original installation specifications.
Works With
- Legacy RS-232 and RS-485 serial communication systems
- Modbus RTU protocol for networked temperature monitoring
- Lovelink™ and Lovelink™II proprietary master/slave networks
- Standard 24 VDC auxiliary control circuits
- HVAC control logic boards that accept relay dry-contact inputs
- BACnet gateways for building management system integration
