Fire Mask Airtightness Tester - Anti-Toxic Mask Airtightness Tester - Instrument Features

Fire mask airtightness tester Fire gas mask as a personal protective equipment, used to provide effective protection
for the respiratory organs, eyes and facial skin of the person.

The mask consists of a mask, a gas guide and a poison canister, and the mask can be used directly with the filter canister, or connected to the filter tank with a gas tube
.

Fire gas masks can be selected according to the protection requirements of various types of filter tanks, used in chemical, warehouse, scientific research, a variety of toxic, harmful operating environment
.

Fire mask airtightness tester - anti-gas mask airtightness tester will match the mask on the test head mold according to different specifications selection, seal the suction valve, wet the exhalation valve, start the vacuum pump, so that the pressure inside the mask reaches -1000pa-1000pa, stop pumping, start timing, observe and record the pressure change value
inside the mask.

Test principle: wear the mask on the matching test head mold, seal the suction valve, wet the exhalation valve
.

The pneumatic vacuum pump makes the pressure inside the mask reach a certain negative pressure value, stops pumping, starts the timekeeping, observes and records the change value
of the mask pressure within 60s.

Reference standard: GB2626-2019 "Respiratory Protection Self-priming Filter Anti-Particulate Matter Respirator" Article 6.
14 "Air tightness" GB/T16556-2007 "Self-sufficient open compressed air breathing apparatus" Article 6.
8 "Air tightness test" Instrument features: 1, color touch screen display operation, Chinese and English interface, menu operation mode
.

2.
Mass flow meter is adopted to control the air flow
stably.

3.
The shell is made of 1.
5 thick plate, and the surface is sprayed with anti-static
.

Description of the detection mode: 1.
The equipment provides GB2626-2006 "Respiratory Protection Products Self-priming Filter Anti-Particulate Matter Respirator" Article 6.
14 "Air tightness" detection and GB/T16556-2007 "Self-sufficient open compressed air breathing apparatus" Article 6.
8 "Air tightness test" detection mode
.

2.
GB/T16556-2007 "Self-sufficient open circuit compressed air breathing apparatus" Article 6.
8 "Air tightness test" detection mode operation procedures are as follows: 2.
1, low-pressure airtightness test: close the air cylinder of the air breathing apparatus, wear the mask on the test head mold, hit the pressure detection switch to the open gear, click the breath test or suction test button on the touch screen to carry out the positive pressure 750Pa or negative pressure 750Pa air tightness test, after the pressure is stable, Observe the change value of the pressure within 1min, when the pressure change value ≤ 30Pa, it is qualified, otherwise it is unqualified
.

2.
2, high pressure air tightness test: wear the full mask on the test headset, and hit the pressure detection switch to the off position (in this test, the pressure detection switch must hit the off gear, otherwise the pressure sensor will be burned out); Open the cylinder valve, close the cylinder valve after all the components of the air breathing apparatus are pressurized, observe the change value of the pressure of the air breathing apparatus pressure gauge within 1 min, when the pressure change value ≤ 2MPa, it is qualified, otherwise it is unqualified
.

3.
GB2626-2006 "Respiratory Protection Products Self-priming Filter Anti-Particulate Matter Respirator" Article 6.
14 "Air tightness" detection mode operation is as follows: wear the mask on the test head mold, seal the suction valve, wet the exhalation valve; The pressure detection switch to the open gear, click the suction test button on the touch screen to carry out the negative pressure 1000Pa air tightness test, after the pressure is stable, observe the change value of the pressure within 1min, when the pressure change value ≤ 100Pa is qualified, otherwise it is unqualified
.