BT-30 constant currentDust sampler

BT-30 constant currentDust sampler

I. Overview

BT-30constant currentDust samplerIt is the sampling of dust, metal dust and other dust substances that pose occupational hazards in the workplace.

The constant flow air sampler mainly consists of an operating system, an intelligent control system, an air pump, and a flow measurement system. Fully charged once for continuous operation8More than one hour, convenient for sampling work. This instrument has real-time flow rate, sampling volume, sampling time, temperature, atmospheric pressure, and electricity display. It has the advantages of compact structure, small volume, light weight, durability, strong load capacity, stable and accurate flow rate, and low noise. Can be carried with you for easy use when sampling.

2、 Application Fields

BT-30constant currentDust samplerIt's the Disease Prevention Center,environmental monitoringThe ideal instrument for dust detection and sampling by environmental protection personnel in colleges, universities, research institutions, and testing institutions.

Execution standard:

JJG520-2005Verification Regulations for Dust Samplers

GBZ/T 192.3-2007Determination of dust in workplace air

3、 Technical parameters

1Flow range:5-30L/min

2Constant current mode: Electronic constant current (digital constant current and constant voltage; built-in high-precision sensor; instrument can be self calibrated), flow rate is not affected by voltage fluctuations and gas resistance changes

3Flow error: ≤±5%

4Sampling range: total dust, respiratory dust

5Traffic stability: ≤5%

6Traffic repeatability: ≤2%

7Timing error: ≤±0.1%

8Timing range:1min～99h59min

9Working temperature:-10～50℃

10Relative humidity: ≤95%RH

11Battery life:>8hour(20L/min）

12Load capacity: ≥15000pa

13Timer mode: ① Loop sampling（99Multiple cycles can be used to sample volume or time, set sampling time, pause time, and number of cycles.

② Manual sampling: After setting the sampling flow rate, you can directly sample, start timing, and manually shut down.

③ Timed sampling, set the sampling time, and stop sampling when the time is up.

④ Fixed volume sampling（1000L）Set the sampling volume for sampling.

14Operating noise: ＜70db