XZJ-4a Portable Methane Sensor Calibrator Product Details
Purpose: The XZJ-4a portable methane sensor calibrator is mainly used for the detection and calibration of various gas sensors and instruments in underground mines. The product is equipped with two cylinders: one cylinder of air (for cleaning) and one cylinder of methane gas (for calibration). The product is small in size, light in weight, easy to carry, and convenient to use.
Main Technical Parameters of the XZJ-4a Portable Methane Sensor Calibrator:
Cylinder working pressure: 19.6 MPa
Methane gas sample concentration: ≤3% (CH4)
Rotameter measurement range: (0.1–1) L/min
Dimensions: (84*150*260) mm
Weight: 3 kg
The XZJ-4a portable methane sensor calibrator is a portable metering device used for verifying and calibrating gas detectors, gas alarms, and methane sensors. It is suitable for use by gas instrument metrology verification departments, factories, mines, ventilation laboratories, and scientific research and teaching units. It consists of two standard gas cylinders, a pressure gauge, and a glass rotameter, featuring small size, light weight, reliability, simple operation, constant secondary pressure, stable flow, convenient flow adjustment, easy maintenance, and portability. It has dual functions: air zero calibration and methane gas calibration.
Model: XZJ-4, XZJ-4a
Refillable gas concentration: Clean air, Methane; Clean air, Methane
Flow measurement range: 0.1–1.0 L/min; 0.1–3 L/min
Cylinder volume: 0.38 L; 1 L
Dimensions: 150×84×260 mm; 360×270×100 mm
Total weight: 2.8 kg; 4.8 kg

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, and borehole coal powder circulation devices.