CCHG1000 direct reading dust concentration measuring instrument

1、 Product Overview

The CCHG1000 direct reading dust concentration measuring instrument (hereinafter referred to as the measuring instrument) is an instrument used to determine the concentration of airborne dust in the ambient air based on the principle of infrared light absorption. This instrument is designed as an explosion-proof dust concentration measuring instrument based on MT163-1997 "General Technical Conditions for Direct Reading Dust Concentration Measuring Instruments", Q/320851FYK002 "CCHG1000 Direct Reading Dust Concentration Measuring Instrument" enterprise standard, MT394 Sampling Efficiency Measurement Method for Respiratory Dust Measuring Instrument, GB/T20964 Dust Sampler and GB3836.4-2000 standard ExibI and other (intrinsic safety) explosion-proof design dust concentration measuring instruments. The separation efficiency of the respiratory separation device of this instrument meets the requirements of the "BMRC" curve, which can accurately and timely reflect the respiratory dust and total dust mass inhaled by dust receiving personnel, the pollution status of dust in different dust workplaces, and provide reliable data for accurately evaluating the hygiene status of workplaces. This instrument is suitable for underground coal mines. And other workplaces containing explosive gases.

For example: metal manufacturing enterprises, aluminum powder, coal powder, magnesium aluminum alloy and other metal applications

Flour, food, grain storage and other storage enterprises

Thermoplastic and synthetic material enterprises

Plastic fillers, powders, sawdust

The instrument has a compact structure, simple operation, high load and negative pressure capacity, automatic timed sampling, stable flow rate, fully Chinese LCD display, and is easy to carry.

2、 Technical parameters

1. Measurement range of dust concentration: total dust 0.1-1000mg/m3, respiratory dust 0.1-100mg/m3;

2. Relative error of dust concentration measurement: ± 15%

3. Stability relative error: ± 2.5%

4. Sampling flow rate: 2.0L/min

5. Sampling flow error: ≤ 2.5%

6. Sampling flow stability: ≤± 5%

7. Sampling efficiency: in line with the "BMRC" sampling efficiency curve

8. Power supply: The instrument battery adopts Ni-H2.5A/h, 6 sections, 5 parallel 10 Ω/10W current limiting resistors, sealed with epoxy resin and placed in the battery box, rated voltage Ue: 7.2V; Its high output voltage U0: 9.0V; *The high output current I0:3.5A constitutes an intrinsic safety battery module.

9. Working voltage: 6.5V~8.4V DC (intrinsic safety)

10. Working current: ≤ 200mA

11. Timing range: freely set within 0-99 minutes

12. Explosion proof type: mining intrinsic safety type

13. Explosion proof mark: Exib I

14. Dimensions: 280 × 228 × 80 (mm)

15. Weight ≤ 3.05Kg

environmental conditions

The measuring instrument should be able to operate normally under the following environmental conditions:

a) Working temperature: 0 ℃~40 ℃;

b) Relative humidity: ≤ 95%;

c) Environmental atmospheric pressure: 80kPa~110kPa;

d) Suitable for underground coal mines with coal dust or gas explosion hazards;

e) Gas environment without damaging metal insulation;

f) A place without dripping water.

Storage temperature: -40 ℃~60 ℃

Product configuration: tripod, charger, printer, respiratory dust sampling head, total dust sampling head, aluminum alloy packaging box, etc;