Overview
The Technical Heaters TH900 temperature controller is a digital control solution engineered for HVAC and refrigeration applications requiring precise temperature management. This model combines self-tuning capability with robust alarm outputs and digital communication options, making it suitable for both heating and cooling systems. With a large LED display and configurable control logic, the TH900 delivers reliable performance in industrial and commercial environments.
Key Features
- Self-tuning (active tune) for optimized control response
- Dual-loop configuration available for multi-zone control
- Heat/cool control modes selectable
- Large digital display with easy-to-read output
- Heater break alarm and loop break alarm detection
- Alarm output and analog output capabilities
- Digital input for integration with external sensors
- IP66 rating for harsh environments
Technical Specifications
- Display Type: Large LED digital display
- Control Mode: ON/OFF configurable
- Temperature Accuracy: 1% for temperature measurement
- Sensor Range: 0–60°C
- Operating Temperature: 0–50°C
- Power Supply: 24 VDC (optional)
- Output Functions: Alarm output, analog output
- Input Options: Digital input, optional RS485 Modbus RTU communication
- Protection Rating: IP66
- Configuration: Heat/cool and humidify/dehumidify configurable
Typical Applications
- HVAC terminal unit control in commercial buildings
- Refrigeration system temperature monitoring and regulation
- Process heating applications in industrial automation
- Environmental chamber and test equipment control
- Hot melt adhesive system heating management
- Continuous emission monitoring systems (CEMS)
Compatibility & Replacements
Compatible With
- RS485 Modbus RTU communication protocol
- 24 VDC powered automation systems
- Standard thermocouple and RTD temperature sensors
- Alarm and relay-based control circuits
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or equipment manufacturer before ordering. The TH900 is available in single-loop (TH100, TH700) and dual-loop configurations.
Works With
- Modbus RTU serial communication (optional)
- Analog sensors (thermocouples, RTDs)
- Discrete alarm and control relays
- Industrial automation platforms requiring temperature feedback
