Overview
The Love Controls 150 temperature controller is a precision industrial process controller engineered for thermocouple-based temperature measurement and control. Supporting Type J thermocouple input with a measurement range of -4 to 1607°F (-20 to 875°C), this microprocessor-controlled unit delivers accurate temperature monitoring and automated heating/cooling control across diverse industrial applications. Manufactured by Dwyer Instruments’ Love Controls division, the 150 Series offers proven reliability with field-tested performance in process automation environments.
Key Features
- Type J Thermocouple Input: Pre-configured for Type J thermocouple sensors across extended temperature range
- PID Control Logic: Proportional-Integral-Derivative control with manual override and On/Off modes available
- Dual-Line LED Display: Four-character 7-segment LED shows process value and setpoint simultaneously
- Multiple Output Options: Relay outputs (SPDT), voltage pulse output, 4-20mA current output, and solid-state relay compatibility
- RS-485 Communication: MODBUS ASCII protocol support for networked process supervision
- Self-Tune PID: Automatic tuning function for optimal control parameter configuration
Technical Specifications
- Input Type: Type J Thermocouple
- Measurement Range: -4 to 1607°F (-20 to 875°C)
- Accuracy: ±0.25% of measuring range, ±1 least significant digit
- Resolution: 1 degree or 0.1 degree, selectable
- Scan Rate: 500 milliseconds per cycle
- Input Supply Voltage: 100 to 240 VAC, 50/60 Hz or 24 VDC (model dependent)
- Power Consumption: 5 VA maximum
- Control Modes: PID, ON/OFF, Manual
- Operating Temperature Range: 32 to 122°F (0 to 50°C)
- Storage Temperature Range: -4 to 150°F (-20 to 65°C)
- Communication: RS-485 with MODBUS ASCII protocol
- Display: 2-line x 4-character 7-segment LED (red for process value, green for setpoint)
- Mounting: 1/16 DIN panel-mount format
Typical Applications
- Industrial ovens and furnaces requiring precise thermocouple-based temperature monitoring
- Plastic injection molding and extrusion process temperature control
- Thermal chamber and environmental test equipment temperature regulation
- Heat treat and annealing furnace setpoint management
- HVAC and process steam temperature control systems
- Laboratory and analytical equipment temperature stabilization
Compatibility & Replacements
Compatible With
- Type J thermocouple sensors and probes
- Industrial automation networks supporting RS-485 MODBUS communication
- Relay control circuits and solid-state relay (SSR) modules
- 4-20 mA analog control loops and instrumentation
- 24 VDC and 100-240 VAC power distribution systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Love Controls 150 Series replaces legacy Love Controls temperature controllers of the same series and compatible DIN form-factor units from equivalent manufacturers. Confirm input thermocouple type and output configuration match your installation requirements.
Works With
- MODBUS ASCII protocol over RS-485 serial networks
- Lovelink™ proprietary communication protocol
- Standard 4-20 mA analog monitoring and control systems
- Relay-based heating and cooling circuits
- Solid-state relay (SSR) proportional control outputs
- Industry-standard DIN panel-mount installations








