A reliable and versatile solution for refrigerant gas detection

QIRF refrigerant gas detectors are QEL’s second generation proprietary designed transmitter/sensors. QIRFs are designed to comply with the International Mechanical Code, ASHRAE 15, and B52 demands. These instruments have been assembled to overcome the limitations associated with solid-state sensors.

Infrared technology enables specific gas type refrigerant detection without cross-sensitive interferences. Its sensors are non-contact, non-depleting forms of concentration measurement that have a sensor life exceeding ten years. QIRF’s standard features include a digital display, three user configurable relays, a buzzer, a horn/strobe output and non-intrusive calibration.

Sensor housings are thermally controlled at elevated temperatures to eliminate errors due to condensate formation and from temperature fluctuations allowing operation in temperatures from -45ºC to +65°C. Each unit can be connected to either the M-Controller or Q4C controller through RS-485 digital communication allowing for cost effective wiring installation. Equally the transmitter is available with 4-20 mA, and Modbus outputs to any Building Automation System (BAS).

Controllers can be equipped with internal and external horns and strobes to alert personnel prior to entering the hazardous area. Both the M-Controller and Q4C are available with M-Net and M-Logger which allows remote monitoring, notification, programming and datalogging features. NEMA 4X enclosures are standard. Calibration procedures are straight forward, non-proprietary and can be performed by any competent technician. Operators can contact QEL to obtain sensors for specific gases.