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Jinan Jiahong Technology Co., Ltd
Jinan Jiahong Technology Co., Ltd
This product regularly measures the gas concentration, negative pressure, flow rate, temperature, and carbon monoxide of drill holes. It employs innovative flow rate and gas concentration measurement technology, and can be used for gas drilling, and online monitoring of drill sites or sub-stations.
Feature
1.There are no blocking and rotating parts in the measuring chamber creating no resistance
2.It can measure flow rate as low as 0.003 m3/s. It can be used for monitoring gas drainage in both single holes and confluent pipelines at drilling sites
3.It can output and display two modes of working condition and standard condition, which is convenient for data collection and query
4.The instrument has the function of wireless data transmission. Data can be transmitted wirelessly between testers and between the tester and the underground wireless base station (optional)
5.Explosion-proof type: mining intrinsically safe (Ex-mark: Exia I Ma)
6.Protection grade: IP65
Technical Parameter
Parameter
Range
Accuracy
Flow rate（m3/min）
0.012~2.945(DN50)
≤±1.5% FS
0.030~4.000(DN80)
0.1~21.000（DN150）
CH4 %
0~100% Vol
≤±0.05% @ (0~1.0)%
≤±5.0% @ (1.0~100)%
Absolute pressure(kPa)
(10~200)
≤0.75%FS
Temperature(℃)
-10~60
≤±1.0
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