GND-20 series gas detection transmitter adopts the most advanced ultra-large-scale integrated circuit technology and is designed by the
international standard intelligent technology level. It is a completely intelligent gas detection transmitter designed by digital and analog mixed communication technology. This intelligent gas detection transmitter has advanced technology, excellent performance, high stability, and communication and self-diagnosis functions. It is easy to install and maintain, fully demonstrates the advanced performance of typical intelligent field monitoring instruments, and greatly meets the requirements of industrial field safety monitoring for high reliability of equipment.GND-20 gas detection transmitter is widely used in petroleum, chemical, metallurgy, refining, gas transmission and distribution, biochemical medicine and other industries. The instrument is compatible with various control alarm systems, PLC,DCS and other control systems, which can realize remote detection,control and alarm.
Features
- (12~ 28) V industrial DC power supply
- Industrial standard 4 ~ 20mA standard signal output
- Equipped with two relay outputs
- Independent sound and light alarm active output interface
- With 128 * 64 high-definition dot matrix LCD screen, unique large character design, and the output value is extremely clear
- Two relays can be designed to have different alarm values, which facilitates separate control for pre-warning and alarm
- Infrared remote-control function make it convenient to have long-distance operation
- The displayed value and 4~ 2OmA can be calibrated separately to improve the accuracy of the meter.
Parameters
| 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 |
Parameters
- Power supply voltage: DC 12V ~ 28V, 50OmA, power ripple is less than 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 without condensation
- Atmospheric pressure: 90~110Kpa
- Dimension: 193mm × 139mm x 92mm (L x W x 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
