Product Features of Intelligent Self-Rescuer Airtightness Tester
Airtightness inspection is one of the primary methods for checking self-rescuers. Current self-rescuer airtightness testers rely on manual pressurization, resulting in high labor intensity and low efficiency for inspectors. Additionally, due to manual pressure control, it is difficult to ensure the reliability of the inspection. Furthermore, the use of rubber for pressurization makes the casing heavy, with a weight exceeding 30kg. Our newly introduced automatic pressurization airtightness tester achieves digital pressure setting, automatically stops when the set pressure is reached, and displays the countdown to the required test time, ensuring accuracy and reliability. The total weight is no more than 25kg.
This instrument features an aesthetically pleasing appearance, intuitive digital display, high precision, minimal error, sturdiness, reliability, compact structure, and ease of use. It offers excellent stability and a long calibration cycle, generally requiring no adjustments after calibration.
Main Applications and Scope of the Intelligent Self-Rescuer Airtightness Tester
The tester can be used for inspecting the airtightness of filtering-type, chemical oxygen, and compressed oxygen self-rescuers.
Compliance Standards
MT709-1997 Coal Mine Carbon Monoxide Filtering Self-Rescuer (Qualified when pressure remains at 13.34kPa for 15 seconds, with a pressure drop of less than 98Pa)
Operating Environmental Conditions
Well-ventilated and dust-free indoor environment
Humidity < 90% RH
Temperature: (0–40)°C;
Safety
a) Ensure good indoor ventilation during the use of this device;
b) The indoor area should have effective anti-static measures;
c) There should be no sources of ignition indoors.
Principle and Structure
The pressurization pump pressurizes, and the compressed gas is transmitted to the air chamber. The sensor in the air chamber sends a signal to the pressure digital display. When the pressure in the air chamber reaches the set pressure on the pressure gauge, the pressurization pump stops working, allowing for the inspection of the product under test. The instrument mainly consists of a casing, air chamber, pressure regulator, pressurization pump, and sealing device.
Main Technical Parameters
a. Measurement range: 12.000—20.000kPa (adjustable in segments); factory setting is 15.000kPa
b. Pressure accuracy: ±1Pa;
c. Inspection time: 30s
d. Automatic inspection timing: 15s;
e. Time accuracy: 0.01s;
f. Maximum number of one-time quick inspections: up to 8 filtering-type units
g. Operating voltage: AC220V

Zhengzhou Aidi ProductionIntelligent Self-Rescuer Airtightness TesterSupplies Coal Drill Cuttings Desorption Tester, Deep Hole Sampling Device, Pressure Tester, Geological Exploration Desorption Tester, Borehole Flow Meter, Mine Extraction and Outburst Prevention Equipment, True Density Tester of Coal, Gas Content Tester, Automatic Initial Gas Emission Rate Tester, Diffusion Rate Tester, Gas Parameter Tester for Coal Extraction Pipelines, Borehole Coal Powder Circulation Device