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CJZ4Z Comprehensive parameter measuring instrument for methane drainage in borehole collecting pipe

CJZ4Z Comprehensive parameter measuring instrument for methane drainage in borehole collecting pipe

Product introduction

CJZ4Z Comprehensive parameter measuring instrument for methane drainage in borehole collecting pipe adopts totally newly flow detection technology and has completely solved the technical problems of borehole methane monitoring. It is a firstly preferred instrument for effect evaluation of borehole methane drainage which can achieve an online timely monitoring of methane parameters including concentration, flow, pipeline pressure, pipeline gas temperature in boreholes and borehole collecting pipes.

Performance characteristics

There is no blocking and rotating element within the measuring cavity as well as any resistance. It is with high measuring accuracy even methane flow rate in the borehole is low to 0.003m3/min.

Accurate measuring without any effects from the dust and moisture

The instrument is equipped with mode setting function of the working conditions or the standard conditions and instrument output mode also can be set.

Intrinsically safe battery box can be optionally selected, the installation is quite easy without any wiring, and measuring data can be obtained by the wireless meter reading.


Technical parameters

Measuring range:
Flow range: (0.012~2.945)m3/min(DN50),(0.030~4.000)m3/min(DN80)

Methane concentration: (0~100)%CH4

Absolute pressure: (10~200)kPa

Temperature: (-10.0~60.0)℃

Rated working voltage: 18V DC
Analog output signal: 200 Hz~1000Hz, 4 circuits

Digital output signal: RS485

Explosion-proof type: Intrinsically safe type for mine use (explosion-proof mark: Exia I Ma)