QIRF-II Series Refrigerant Gas Transmitters (Digital/Analog)

The QIRF2 refrigerant gas detectors are advanced sensors designed to meet international standards like the International Mechanical Code, ASHRAE 15, and B52. They use infrared technology for precise gas detection without cross-sensitivity issues and have a sensor life of over ten years. Key features include a digital display, configurable relays, buzzer, horn/strobe output, and non intrusive calibration. The sensors operate in temperatures from -45ºC to +50°C and can connect to various controllers via RS-485, 4-20mA, Modbus, and BACnet outputs. They come in NEMA 4X enclosures and are easy to calibrate. The detectors can monitor various refrigerants, including R134A, R123, R22, R404A, R407C, R410A, R507C, R513A, R1233ZD, R1234ZE, and R454B.

PRINCIPLE OF OPERATION

The concentration of refrigerant is measured by the amount of light absorption in a specific infrared frequency band, Which is unique to each gas. This method, using IR spectra as gas fingerprints, allows for precise identification and concentration measurement. The QIRF Refrigerant smart sensors use this principle with a temperature-controlled Gas Sample Cell, integrated IR Source, and IR Detector, ensuring accurate readings from -45ºC to +50ºC by eliminating errors from condensation and temperature changes
Selection of Gases to choose from. For full list, please see datasheet and contact us.