Product description
Our methane sensor designed by our company adopts the explosion-proof ExdIMb. It has strong safety, fast response speed and strong anti-interference ability. It has passed our unique compensation algorithm and multi-stage standard gas. Calibration also features long life, high precision, high repeatability and high stability. Applicable to underground pipe corridors, underground parking lots, public toilets, garages, workshops, chemical plants, greenhouse farms, etc. where real-time monitoring of methane concentration is required.
RS485 OUTPUT
4-20ma, 0-5V, 0-10V OUTPUT
Power supply
10~30V DC
Power supply
10~30V DC
Power consumption
0.9W
output signal
4~20mA, 0~5V, 0~10V
Temp&Humidi measure range
-40℃~+80℃, 0~100%RH
Power consumption
0.9W
Temp&Humidi accuracy
±0.5℃, ±3%RH
Operating temperature
-20~40℃
Operating temperature
-20~40℃
Working humidity
0~95%RH
Working humidity
0~95%RH
Pressure range
80~116Kpa
Pressure range
80~116Kpa
Stability (months)
≤7% signal value/year
Stability (months)
≤7% signal value/year
Response time
≤15S
Repeatability
≤2%
Methane zero drift
±0.06%
Response time
≤15S
Repeatability
≤7% signal value/year
Methane zero drift
±0.06%
Service life
≥24 months
Measure range
0~100%LEL
Measure range
0~100%LEL
Precision
±5% FS
Precision
±5% FS
Resolution
1% LEL
Resolution
1% LEL
Details
1.The sensor with explosion-proof ExdIMb explosion-proof rating is stable and durable.
2.Range 0-100% LEL, other ranges can also be customized.
3.High measurement accuracy, up to ±5% FS, repeatability up to ±7%.
4.Optional high-quality OLED display, the value can be directly viewed on the spot, and the night can be clearly displayed.
5.On-site power supply adopts 10~30V DC wide voltage power supply, which can adapt to various DC power supplies in the field.
6.The product adopts wall-mounted waterproof case, which is easy to install and has high protection level and can be applied to harsh environment.
Electrical Wiring
RS485 OUTPUT
Line color
Description
power supply
brown
10~30V DC
black
Negative power supply
Communication
yellow
485-A
blue
485-B
Wide voltage power input can be 10~30V. When wiring the 485 signal line, note that the A\B lines cannot be connected in reverse, and the addresses between multiple devices on the bus cannot conflict.
ANALOG OUTPUT
Line color
Description
power supply
brown
10~30V DC
black
Negative power supply
Output
blue
Positive methane signal
green
Negative methane signal
NOTES: Two wiring method
- Four - wire connection method
- Three - wire connection method
