Detfire brand explosion-proof gas leak detector, model number DF-GD3-A-B0300, made in Italy.
1600ر.س
Product description
The DF-GD3 series detectors are manufactured with an ATEX-approved die-cast aluminum housing, with an IP65 rating of protection, making them suitable for use in Category 2 Zone 1 and 2 (gas) and Zone 21 or 22 (dust) rated areas, with temperatures ranging from -40 to +60 degrees Celsius.
The DF-GD3 series detectors utilize a microprocessor unit capable of processing gas concentration data and performing dynamic calibration to ensure accurate detection. The sensors used can be catalytic, electrochemical, infrared, or semiconductor, depending on the gas being detected. Power supply is between 12Vc and 24Vc. The front of the detectors features LED indicators for detector status: alarm, correct operation, and fault.
Two distinct versions of the DF-GD3 series detector interface are available:
- The DF-GD3-A is equipped with a 4-20 mA analog output.
- The DF-GD3-I is equipped with RS485 digital output and Modbus RTU communication protocol.
In both cases, it is possible to insert the optional DF-RM3 card which integrates three distinct programmable relays to indicate pre-warning, alarm and failure conditions, with programmable interference thresholds and thus allowing interaction with any type of control center.
The DF-GD3 series detectors are capable of detecting a wide range of explosive/flammable gases (e.g., methane, LPG, etc.) (e.g., carbon monoxide, etc.) or asphyxiating (e.g.), invading gases (e.g., nitrogen, helium, etc.).
The following table shows the types of detectable gases and their corresponding identification codes, depending on the type of sensor used and the percentage of LIE or ppm detected. For the complete code of the detectors to be ordered, simply add the following prefix before the code corresponding to the specific gas:
- DF-GD3-A- detectors with 4-20 mA analog output type
- DF-GD3-I- for detectors with RS485 digital output
Technical specifications
Primary power supply from 12Vdc to 24Vdc
Maximum current absorption 60mA at 24 VDC - 90mA at 12 VDC
Analog 4-20mA (DF-GD3-A) Digital RS485-Modbus (DF-GD3-I)
Flammable gas technology, catalytic or infrared
Toxic gas sensing technology uses electrochemical cells, infrared radiation, or semiconductors.
Sensitive elements group, flammable gas, 0x100% false
The range of elements sensitive to toxic gas depends on the gas being detected.
Operating temperature from -40°C to +60°C
Relative humidity 15-90% without condensation
Dimensions 170x120x90 mm
Protection rating IP65
