1. Product introduction

Specifically for the long-term low-flow sampling in "Determination of Toxic Substances in the Workplace Air" ( GBZ/T160 ), the flow lock card is designed to adjust the flow to ensure that the flow fluctuation is less than 5% during the long-term sampling of low flow . Choose a more stable suction pump suitable for low flow, and the suction negative pressure is >5000Pa . 4 digits display timing, working noise <60dB(A) . There is a filter element inside to prevent particles from being sucked into the pump.

2. Product parameters

1. Flow range: 20-300mL/min

2. Flow stability: ≤ 5% ( within the range of 5000Pa negative pressure )

3. Flow error: ≤± 5%

4. Timing range: 1-23hr59min

5. Timing error: < 0.1%

6. Working temperature: 0-45 ℃

7. Continuous working time: ≥ 8 hours

8. Explosion-proof: ExiaIICT4

9. Dimensions of the host: 120*80*42mm

10. Weight ( including battery ) : 380g

3. Product Features

With undervoltage indication and buzzer alarm.