A. Technical Parameters
1.
Flow Rate: 5-200L/min,
Accuracy 0.1L/min, Better than ±2.5%
2. Head Model Size：L (M&S are available for customization)
3. Pressure
Range: ±1000Pa, 0.1Pa, better than 0.2%
4.
Dimensions: (W×D×H)
(600*600*750)mm
5.
Weight: About 35kg, power
dissipation: 1.3w
B. Applicable Standards:
GB
2626-2019: Respiratory protection—Non-powered air-purifying particle
respirator, section 6.5, 6.6
GB/T
32610-2016: Technical specification of daily protective mask
BS
EN 149-2001+A1-2009
C. Testing Principles:
1. The
tester is composed of an air source with an adjustable flow rate, a standard
human head model, an inspiratory and expiratory circuit system, and a
respiratory resistance measurement system.
2. A
special air path conversion element is adopted to ensure that the inspiratory
and expiratory circuit system are easy to be replaced.
3. Digital
display of respiratory resistance with zero point correction, accuracy
correction, and over-range alert function.
4. A
standard flow meter is adopted to ensure flow control accuracy.
5. Siemens
touch screen and PLC are emplaced to achieve real-time detection and output of
pressure control and respiratory resistance test data.
6. Thermal
printer is adapted to print the respiratory resistance test report
7. Delta
inverter
