1. Product introduction

TWA-300N dual gas path low flow air sampler is a conventional instrument for parallel sampling of harmful gases. This machine adopts microcomputer constant current system control, LCD digital display system for both AC and DC use, and optional lithium battery power supply.

The instrument uses double pumps to independently complete two sets of gas circuits without interfering with each other. The circuit adopts single-chip control technology, built-in high-energy lithium rechargeable battery, long continuous operation time, easy operation, high timing accuracy, sturdy and durable, AC and DC compatibility, and convenient time selection. fast. The countdown can be selected arbitrarily in the range of 1-99 hours and 59 minutes. It is a more practical dual gas path gas poison sampler.

2. Product parameters

1. Flow range (optional): 20-500mL/min, 50-500mL/min

2. Flow error: ≤±5%

3. Timing error: ≤±1%.

4. Sampling negative pressure; ≥25000Pa

5. Working voltage: 10VDC, 220V, 50Hz AC

6. Working temperature: -10～45℃

7. Relative humidity: ≤85%

8. Weight: about 2Kg