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7 Appendix
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8.0 Gas measuring (absence of gas)
8.1 Zero point
– Display -0.3 – +0.3 % vol.
8.2 Test gas 100 % vol. CH
4
– Display 98 – 102 % vol.
9.0 Measuring in bar holes
9.1 Zero point
– Display -0.3 – +0.3 % vol.
9.2 Test gas 100 % vol. CH
4
– Display 98 – 102 % vol.
9.3 Test gas 20.0 % vol. CO
2
– Display 18.0 – 22.0 % vol.
10.0 Further gases (optional)
10.1 Oxygen O
2
Zero point (test gas 100 % vol. CH
4
)
– Display -0.5 – +0.5 % vol.
Test gas 17.5 % vol.
– Display 17.0 – 18.0 % vol.
Test gas fresh air (20.9 % vol.)
– Display 20.4 – 21.4 % vol.
10.2 Carbon monoxide CO
Zero point fresh air
– Display -3 – +3 ppm
Test gas 40 ppm
– Display 37 – 43 ppm
10.3 Hydrogen sulphide H
2
S
Zero point fresh air
– Display -3 – +3 ppm
Test gas 20 ppm
– Display 17 – 23 ppm
Test gas 40 ppm
– Display 37 – 43 ppm
11.0 Ethane analysis (optional)
11.1 Test gas 50 ppm C
2
H
6
in synth. air
– CH
4
: No, C
2
H
6
: Yes, C
3
H
8
: No
11.2 Test gas 100 ppm C
2
H
6
, 1 % vol. CH
4
– CH
4
: Yes, C
2
H
6
: Yes, C
3
H
8
: No
12.0 Comments
– Housing damaged
– Adjustment, repair
– Inspection at factory
– or similar
13.0 Inspection
– Day
– Month
– Year
– Signature
