JZG-II Optical Interference Methane Detector Calibrator (Digital) Main Purpose:
The JZG-II Optical Interference Methane Detector Calibrator (Digital) is primarily used for the periodic verification and daily calibration of optical interference methane detectors. (Calibrates 0–100 optical interference methane detectors)
JZG-II Optical Interference Methane Detector Calibrator (Digital) Main Technical Specifications:
Measurement Range: JZG—Ⅱ/7500: 0Pa～7500Pa (Calibrates 0–10% optical interference methane detectors)
JZG—Ⅱ/75000: 0KPa～75KPa (Calibrates 10–100 optical interference methane detectors)
Basic Error: ±0.1% F?S
Minimum Resolution: 0.1Pa
Concentration Error: Less than 0.016%
Ambient Temperature: 20±5℃
Relative Humidity: ≤85%
JZG-II Optical Interference Methane Detector Calibrator (Digital) Main Features:
1. Digital pressure display for more intuitive reading.
2. Built-in imported transmitter, long service life, stable performance.
3. Lightweight overall unit, convenient for sending for inspection.
4. Good equipment airtightness, pressure resistance time meets requirements.

Zhengzhou Aidi produces and supplies coal drill cuttings desorption instruments, deep hole sampling devices, pressure measuring instruments, geological exploration desorption instruments, borehole flowmeters, mine gas extraction and outburst prevention equipment, true density measuring instruments for coal, gas content measuring instruments, automatic initial gas emission speed measuring instruments, diffusion speed measuring instruments, gas parameter instruments for coal extraction pipelines, borehole coal powder circulation devices  portable comprehensive gas extraction parameter measuring instruments, mine intrinsic safety type coal seam gas pressure measuring instruments, gas content measuring instruments in coal, gas outburst parameter instruments, coal drill cuttings gas desorption instruments, underground gas desorption instruments, coal sample cans/coal sample cylinders, geological exploration gas desorption instruments, multi-stage borehole flowmeters

Capsule hole sealers, high negative pressure gas samplers, methane sensor calibrators, automatic negative pressure samplers, positive pressure samplers/multi-gas samplers, methane sensor calibrators, self-rescuer airtightness testers (pointer type/digital display type/touch screen type)
Optical interference methane detector verification devices (intelligent type), optical interference methane detector calibrators (water column type), electric thermostatic drying ovens