YYT268 Exhalation Value Air Tightness Tester

1.1 Overview
It is used to detect the air tightness of the breathing valve of the self-priming filter type anti particle respirator. It is suitable for labor safety protection inspection
Center, occupational safety inspection center, disease prevention and control center, respirator manufacturers, etc.
The instrument has the characteristics of compact structure, complete functions and convenient operation. The instrument adopts single chip microcomputer
Microprocessor control, color touch screen display.

1.2. Main features
1.2.1 high definition color touch screen, easy to operate.
1.2.2 the micro pressure sensor has high sensitivity and is used to collect test data pressure.
1.2.3 high precision gas flowmeter can accurately measure the leakage gas flow of expiratory valve.
Convenient and quick pressure regulating device.

1.3 Main specifications and technical indexes
1.3.1 the buffer capacity shall not be less than 5 liters
1.3.2 range: - 1000pa-0pa, accuracy 1%, resolution 1pA
1.3.3 the pumping speed of vacuum pump is about 2L / min
1.3.4 flow meter range: 0-100ml / min.
1.3.5 power supply: AC220 V, 50 Hz, 150 W
1.3.6 overall dimension: 610 × 600 × 620mm
1.3.7 weight: 30kg

1.4 Working environment and conditions
1.4.1 room temperature control range: 10 ℃～ 35 ℃
1.4.2 relative humidity ≤ 80%
1.4.3 there is no vibration, corrosive medium and strong electromagnetic interference in the surrounding environment.
1.4.4 power supply: AC220 V ± 10% 50 Hz
1.4.5 grounding requirements: the grounding resistance is less than 5 Ω.