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Temperature and Humidity Controller | TRH-307A-PM

The TRH-307A-PM Temperature and Humidity Controller is a highly accurate and versatile device designed for monitoring and controlling environmental conditions in various applications such as clean rooms, server rooms, pharmaceutical facilities, hospitals, labs, walk-in coolers, greenhouses, and more. With a temperature range of -30°C to +80°C and a humidity range of 0% RH to 100% RH, the controller provides precise readings with an accuracy of ± 0.5°C for temperature and ± 2% RH for humidity. Featuring a user-friendly interface with a digital display showing temperature and humidity on a seven-segment display, the controller allows easy handling and programming through three front-panel keys, ensuring efficient operation. The password-protected programming and software calibration enhance security and accuracy.

Product Features:
1. Digital Sensor Technology: Utilizes highly accurate digital technology sensors for fast and reliable output.
2. Temperature Range: Covers a wide temperature range from -30°C to +80°C, ensuring suitability for diverse environments.
3. Temperature Accuracy: Achieves precise temperature readings with an accuracy of ± 0.5°C.
4. Humidity Range: Offers a relative humidity range of 0% RH to 100% RH for comprehensive environmental monitoring.
5. Humidity Accuracy: Provides accurate humidity measurements with a precision of ± 2% RH.
6. Long-Term Stability: Ensures stable and consistent output for both temperature and relative humidity over extended periods.
7. Digital Display: Features a 2-line, 4-digit 13mm (H) seven-segment display for clear visualization of temperature and humidity values.
8. Alarm System: Equipped with two configurable alarm levels and a fail-safe relay for effective monitoring.
9. User-Friendly Interface: Allows easy handling and programming through a front panel with three keys.
10. Password Protection: Enhances security by enabling password-protected programming with the ability to change passwords.
11. Software Calibration: Offers software calibration for both temperature and relative humidity, ensuring accuracy.
12. Data Security: Incorporates flash memory to safeguard data in the event of a power failure.
13. Optional Outputs: Provides optional standard 4-20mA signal outputs with configurable ranges for enhanced connectivity.
14. Communication Port: Includes an optional isolated RS-485 communication port with MODBUS RTU Protocol for communication flexibility.
15. Compact Design: Features a compact size for easy installation in various settings.

Technical Specifications:
1. Sensor Type: Capacitive Polymer Sensor for accurate measurements.
2. Sensor Cable Length: Offers flexibility with cable lengths ranging from 1 meter to 15 meters (available on request).
3. Control Action: Two independent alarm set points with latch and non-latch facility, user-selectable hysteresis.
4. Performance:
– Temperature Accuracy: ± 0.5°C
– Humidity Accuracy: ± 2% RH
– Response Time: Approximately 5 seconds
5. Electrical:
– Supply Voltage: 90 to 270VAC, 50 Hz
– Power Consumption: Less than 20 Watts
6. Environmental:
– Operating Temperature: -20°C to +55°C
– Storage Temperature: -30°C to +70°C
– Relative Humidity: Less than 95% Non-Condensing
7. Error Monitoring:
– Displays ‘SENS OPEN’ during sensor break/open.
– Displays ‘OVER RNGE’ during over-range conditions.
8. Output Signal:
– Standard: Three SPDT relay (one for fail-safe, two for alarm indication) with a rating of 5A/250VAC, 5A/30VDC.
– Optional: Two 4-20mA current outputs and RS-485 isolated port with MODBUS RTU protocol.
9. Accessories (Optional):
– Canopy Mounting Stand
– SCADA Software
– RS-232 to RS-485 Converter
– Hooter Cum Flasher
– RS-485 to USB Converter
10. Panel Mount Housing:
– Protection Class: IP-40
– Cutout: 92mm (W) x 92mm (H)
– Dimensions: 96mm (W) x 96mm (H) x 175mm (D)
– Enclosure: ABS Plastic, Black color
– Mounting: Panel Mounting
– Weight: Approximately 600 grams

  • Clean Rooms
  • Server Rooms
  • Hospitals & Labs
  • Greenhouse Breeding
  • Energy Management
  • Indoor Air Quality (IAQ)
  • Pharma & Cold Storage
  • Environmental Monitoring

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