Model: CD4

Description: CD4 Multi-parameter Gas Detector

MA: MFA150188 (National safety sign for coal mining products)

KA: KFA150017 (National safety sign for mining products)

ExibI : 320150860 (Intrinsic safe and explosion-proof products certificate)

ExiaII: CMExC17.4385

 

Introduction:

1. Detect the gas concentration of CH4, O2, CO, H2S.

2. 8 digitals micro-controller as control unit, high sensitivity and fast response speed, high precision detecting element.

3. Large LCD screen to ensure high definition display.

4. Detector will cause luminescence and voice alarm if gas concentration is over standard.

 

Technology parameters:

1. CH4:

Measuring range	Error expected
0.00~1.00	± 0.10
1.00~3.00	Truth value ± 10%
3.00~4.00	± 0.30

2. O2

Measuring range	Error expected
0.0~5.0	± 0.5
>5.0~30.0	Measuring value ± 3%

 

 

 

 

 

3. CO

Measuring range	Intrinsic error
	Absolute error	Relative error
0~20	± 2	——
>20~100	± 4	——
>100~500	——	Truth value ± 4%
>500~1000	——	Truth value ± 5%
>1000~2000	——	Truth value ± 6%

4. H2S

Measuring range	Intrinsic error
0~49	± 3
50~100	Truth value ± 10%
>100~500	Truth value ± 15%

 

 

 

 

 

 

5. Response time: T<30s

6. Indicating method: LCD screen displays real-time data and system status.

7. Working environment: temperature -20℃~50℃

8. Humidity < 95%RH, no condensation

9. Voltage: DC3.7V

10. Recharge time: 6h~8h

11. Stand-by time: >8 hours

12. Sensor lifetime: 2 years

13. Levels of protection: IP65

14. Dimension: 68mm×33mm×124mm

15. Weight: 400g