Products

CJZ7

Laser Gas Drainage Comprehensive Parameter Tester

Product description

The CJZ7 gas extraction comprehensive parameter meter is a portable instrument designed for simultaneously measuring the drilling gas concentration, flow rate, negative pressure, temperature, CO, O2 and CO2.

Product description

The CJZ7 gas extraction comprehensive parameter meter is a portable instrument designed for simultaneously measuring the drilling gas concentration, flow rate, negative pressure, temperature, CO, O2 and CO2.

Feature

  • Using patented technology, gas concentration, flow rate, negative pressure, temperature, O2, CO, and CO2can be measured simultaneously. The seven measurements can be completed in 3 minutes.
  • Added O2, CO, and CO2monitoring function can effectively warn potential self-ignition risk of coal seam.
  • Proximity matching technology of drilling holes simplify the measurement operation and improve the measurement efficiency.
  • Circulated sampling method inside gas gives fast measuring speed and shows the real situation in the gas pumping pipeline.
  • The instrument uses high-purity light source modulation technology which gives good monochromaticity and cannot be disturbed by other gas components and water vapor. It can detect the real gas concentration.
  • The instrument, verified thousands of times, has excellent waterproof and dust-proof ability. It has self-cleaning function which can resist the impact of slime inside drainage pipeline. Automatic drainage function guarantees no damage to and well-functioning of the sensor element under harsh conditions.
  • Innovated highly secured energy saving power circuit.
  • Passed the Exia I Ma (Explosion-proof) certification.

Technical parameter

  • Flow rate:

(0.040~1.600) m3/min DN50: ±1.5%FS

(0.090~3.600) m3/min DN75: ±1.5%FS,

(2.5~100.0) m3/min DN300: ±1.5%FS

  • CH4 %: (0.00~1.00)% CH4: ±0.05%CH4, >(1.00~100.0)% CH4: ±5.00% of true value
  • Absolute pressure(kPa): (10.0~100.0) kPa: ±1.5%, >(100.0~200.0)kPa: ±1.5 kPa
  • Temperature (℃): (-10.0~+50.0) ℃ ±1.0℃
  • CO2 %: (0.00~0.50)% CO2: ±0.1% CO2

(0.50~5.00)% CO2: ±(0.5+5% of true value)% CO2

  • CO (10-6 CO): (0~20)x10-6 CO: ±2×10-6 CO >(20~100) x10-6 CO: ±4×10-6 CO

>(100~500) x10-6 CO: ±5% of measured value

>(500~1000) x10-6 CO: ±6% of measured value

  • O2%: (0~5)% O2 ±0.5; (>5.0~25.0)% O2 ±3% FS
  • Explosion-proof type: mining intrinsically safe (Explosion-proof sign: Exia I Ma)

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