ASTTAR coal mine optical methane gas detector CJG10

Measuring range

(0~10)% CH4

(0~100)% CH4

Tolerance

measuring range

0~1

1~4

4~7

7~10

0~10

10~40

40~70

70~100

Error

±0.05

±0.1

±0.2

±0.3

±0.5

±1

±2

±3

Minimal division value of

eyepiece differentiation board

0.5%

5%

Differentiation range of

 micrometer scale

(0~1)%

(0~10)%

Minimal division value of

micrometer scale

0.02%

0.2%

Explosion-proof mark

Exib I Mb

Light source(bulb)

2.5V/0.3A

Power source

2xR20 battery (Zn-Mn)

Dimension

218x123x65mm

Weight

1.8kg

Certificate

MA certificate