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NovaStar, QT122, Mask Breathing Valve Air Tightness Tester, 7-inch Color Touch Screen, 0 to 2000 Pa Pressure Range (New)

NovaStar, QT122, Mask Breathing Valve Air Tightness Tester, 7-inch Color Touch Screen, 0 to 2000 Pa Pressure Range

Description

  1. Overview
    1. Mask breathing valve air tightness tester
    2. Used to detect the air tightness of the breathing valve of self-priming filter anti-particle respirators
    3. Applicable to labor safety protection inspection centers, occupational safety inspection centers, disease prevention and control centers, and respirator production enterprises
  2. Operating Principle
    1. After closing the constant volume cavity with an airtight inspection cover, pump the system to a negative pressure of 1180 Pa
    2. No pressure change should be observed within 2 minutes after closing the control valve
    3. Install the sample to be measured on the constant volume cavity and ensure tightness
    4. At a pumping rate of not more than 500 ml/min, the system can reach a negative pressure of 1250 Pa and close the control valve
    5. Start timing when the negative pressure of the system drops to 1180 Pa, and record whether the time required for the system to return to normal pressure is less than 20 s
  3. Features
    1. High-definition 7-inch color touch screen, simple and convenient operation
    2. Micro-pressure sensor with high sensitivity used to collect test data pressure
    3. High-precision gas flow meter to accurately measure the leakage gas flow of the exhalation valve
    4. Convenient and fast pressure regulating device
    5. Product conforms to the third-level authority of GMP users
    6. Single and group statistical analysis of test results
    7. With ISP online control and upgrade function, the test function can be changed remotely as required
    8. Specialized computer communication software can perform real-time display of test, data analysis and processing, and data storage
  4. Specifications
    1. Volume of constant volume cavity: 150 ± 10 ml
    2. Micro-pressure measuring range: 0 to 2000 Pa, accuracy is 1 Pa
    3. Flowmeter range: 0 to 1000 ml/min
    4. Flowmeter accuracy: 2%
    5. Electronic digital display flow
    6. Timer accuracy: 0.1 s
    7. Pumping speed: 2 l/min