Ambetronics introduces the TRH-307A-PM Temperature and Humidity Controller, a versatile solution for precision monitoring in diverse environments. This panel-mount controller is designed with advanced features to meet the stringent requirements of applications such as clean rooms, hospitals, pharmaceuticals, and more.

Equipped with highly accurate digital technology sensors, the TRH-307A-PM ensures fast and reliable temperature and humidity output. The temperature range spans from -30°C to +80°C with an accuracy of ±0.5 ºC, while the relative humidity range covers 0% RH to 100% RH with an accuracy of ±2% RH. The long-term stable output guarantees reliable performance.

Featuring a 2-line, 4-digit 13mm (H) seven-segment display, the controller provides a clear visual of temperature and relative humidity readings. Two alarm relay contacts with configurable levels add an extra layer of control, and one relay is dedicated to fail-safe operation.

Programming the TRH-307A-PM is a breeze with three keys, and the password-protected programming ensures security and prevents unauthorized access. The controller supports software calibration for both temperature and relative humidity, contributing to its accuracy.

For data security in the event of a power failure, the TRH-307A-PM is equipped with flash memory. Additionally, users have the option to include standard 4-20mA signal outputs with configurable ranges and an isolated RS-485 communication port with MODBUS RTU protocol.

Compact in size, the TRH-307A-PM is easy to install, making it suitable for various applications, including clean rooms, hospitals, greenhouse breeding, and indoor air quality management.

• Highly Accurate Digital Technology Sensor
• 2-Line, 4-Digit 13mm (H) Seven Segment Display
• Two Alarm Relay Contacts with Configurable Levels
• Easy Programming with 3 Keys
• Password-Protected Programming
• Software Calibration for Temperature and Relative Humidity
• Flash Memory for Data Security
• Optional 4-20mA Signal Outputs and RS-485 Communication Port
• Compact Size for Easy Installation

Technical Specifications:

• Supply Voltage: 90 to 270VAC, 50 Hz
• Power Consumption: Less than 20 Watts
• Sensor Type: Capacitive Polymer Sensor
• Sensor Cable Length: 1 meter to 15 meters (available on request)
• Range: Temperature -30°C to 80°C, Relative Humidity 0% RH to 100% RH
• Display: 2-Line, 4-Digit 13mm (H) Seven Segment Display with 8 LEDs
• Control Action: Two independent Alarm set points with Latch & Non-latch facility, User-selectable Hysteresis
• Measurement Accuracy: ± 0.5°C for Temperature, 2% RH for Relative Humidity
• Response Time: Approx 5 Seconds
• Operating Temperature: -15°C to +55°C
• Storage Temperature: -20°C to 60°C
• Protection Class: IP-40
• Cutout: 92 mm (W) x 92 mm (H)
• Dimension: PM – 96 mm (W) x 96 mm (H) x 170 mm (D)
• Enclosure: ABS Plastic, Black color
• Mounting: Panel Mounting
• Weight: Approx 1.4 Kg

Accessories (Optional):

• Canopy Mounting Stand
• SCADA Software
• RS-232 to RS-485 Converter
• Hooter Cum Flasher
• RS-485 to USB Converter