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Compact IP67 refrigerant gas detector with 4–20 mA + Modbus RS485 outputs and Bluetooth setup. For refrigerants, R290, NH3 and CO2.
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Details
Technical specifications and application details.
Compact IP67 refrigerant gas detector with 4–20 mA + Modbus RS485 outputs and Bluetooth setup. For refrigerants, R290, NH3 and CO2.
The GDR300 is the entry model of Tecnocontrol's refrigerant gas detector range, housed in a compact IP67 enclosure. Connection to the gas control panel is via a 4–20 mA signal and Modbus RS485. The detector includes a Bluetooth module that allows real-time gas measurement and alarm viewing, testing and calibration, Modbus configuration and reading of sensor data (type, serial number, temperature, electronics and firmware) for non-intrusive set-up and maintenance.
It accepts a replaceable sensor cartridge in electrochemical, pellistor and infrared technologies, covering ammonia (NH3), propane/R290, n-butane/R600, CO2 and the main HFC/HFO refrigerants (R407c, R410a, R507, R449a, R32, R134a, R404a, R1234ze, R1234yf, R454b, R454c).
HVAC/R machine rooms, cold stores, supermarkets and plant rooms needing compact refrigerant leak detection with digital output.
Specifications
Detailed parameters and configurations for this model.
| Parameter | Value |
|---|---|
| Power supply | 12–24 VAC / VDC |
| Outputs | 4–20 mA + Modbus RS485 |
| Sensor type | Electrochemical / Infrared / Pellistor / Semiconductor |
| Measuring range | Electrochem 0–100/1000 ppm IR 0–100% LFL / 2000 ppm / 1-2-5% Vol / 5000 ppm Pellistor 0–100% LFL Semicond 0–1000 ppm |
| Working temperature | −40/+60°C (IR & pellistor) −40/+50°C (electrochem) −30/+60°C (semicond) |
| Sensor cartridge | Replaceable |
| Average sensor life | Electrochem 2 y / IR >5 y / Pellistor 5 y / Semicond 5 y |
| Cable glands | 4 x M16, 1 x M20 (optional) |
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