GT-GND20 Gas Detection Transmitter
Characteristics
Power supply voltage：DC 12V~28V, 500mA
Output error：<1%(4 ~20mA part)
Relay capacity：DC48V 1A, AC250V 1A
Atmospheric pressure：90~ 110Kpa
Explosion-proof mark：Ex d IIC T6 Gb
Power supply voltage：DC 12V~28V, 500mA
Output error：<1%(4 ~20mA part)
Relay capacity：DC48V 1A, AC250V 1A
Atmospheric pressure：90~ 110Kpa
Explosion-proof mark：Ex d IIC T6 Gb
General gas detection range
| Detection gas | Range | Low-point alarm | High-point alarm | Resolution |
| Oxygen | 0-30%VOL | 19.5 | 23.5 | 0.1%VOL |
| Flammable | 0-100%LEL | 20 | 50 | 1%LEL |
| Carbon monoxide | 0-1000PPM | 50 | 150 | 1PPM |
| Hydrogen sulfide | 0-100PPM | 10 | 20 | 1/0.1PPM |
| Ammonia | 0-100PPM | 20 | 50 | 1/0.1PPM |
| Hydrogen | 0-1000PPM | 200 | 500 | 1/0.1PPM |
| Chlorine | 0-20PPM | 5 | 10 | 1/0.1PPM |
| Hydrogen chloride | 0-20PPM | 5 | 10 | 1/0.1PPM |
| Sulfur dioxide | 0-20PPM | 5 | 10 | 1/0.1PPM |
| Nitric oxide | 0-250PPM | 50 | 125 | 1/0.1PPM |
| Nitrogen dioxide | 0-20PPM | 5 | 10 | 1/0.1PPM |
| Please contact the company for other combination gases | ||||
Technical parameter
| Power supply voltage | DC 12V~28V, 500mA, power ripple is lessthan 20mV |
| Output error | <1%(4 ~20mA part) |
| Relay capacity | DC48V 1A, AC250V 1A |
| Environmental range | (-40~70)C(flammable) (-20~55)C(adjusted according to specific business needs. To achieve this value,temperature compensation is required.)(10 ~95)% RH withoutcondensation |
| Atmospheric pressure | 90~ 110Kpa |
| Dimension | 193mm x 139mmx 92mm(L*W*H) |
| Housing material | Die-cast aluminum, explosion-proof and anti-corrosion |
| Weight | ≈1.5 Kg(net weight of the instrument) |
| Explosion-proof mark | Ex d IIC T6 Gb |
GND-20 Series Gas Detection Transmitter is a fully intelligent gas monitoring instrument developed using advanced ultra-large-scale integrated (ULSI) circuit technology and international standard intelligent design concepts. It adopts digital-analog hybrid communication technology to ensure high accuracy, excellent stability, and reliable long-term operation.
Equipped with advanced communication and self-diagnostic functions, the GND-20 transmitter is easy to install, commission, and maintain. It is designed to meet the stringent reliability requirements of industrial safety monitoring and demonstrates the typical advantages of modern intelligent field instruments.
The GND-20 gas detection transmitter is widely used in industries such as petroleum, chemical processing, metallurgy, refining, gas transmission and distribution, and biopharmaceuticals. It is fully compatible with PLC, DCS, and various alarm control systems, enabling remote gas detection, system integration, and real-time alarm management.
The product is in accordance with the general technical requirements of GB12358-2006 work place ambient gas detection alarm device, and is expected to meet the relevant requirements of the verification regulations of JJG915-2008 carbon monoxide detection alarm, JJG695-2003 hydrogen sulfide gas detector, JJG693-2011 combustible gas alarm and JJG365-2008 electrochemical oxygen analyzer.
According to GB3836.l Environmental explosion Part 1:General requirements for equipment and GB3836.2-2010 and Environmental explosion Part 2: Equipment designed to be protected by flameproof enclosure 'd' to meet EXdllCT 6 Gb explosion-proof requirements.
1.(12~28) Vindustrial DC power supply
2.Industrial standard 4 ~20mA standard signal output
3.equipped with two relay outputs
4. Independent sound and light alarm active output interface5. With 128*64 high-definition dot matrix LCD screen, unique largecharacter design, and the output value is extremely clear6. Two relays can be designed to have different alarm values, whichfacilitates separate control for pre-warning and alarm7. Infrared remote-control function make it convenient to havelong-distance operation
8. The displayed value and 4 ~20mA can be calibrated separately toimprove the accuracy of the meter.
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