Dräger HFG 000 Series Technical Manual page 44

Maintenance
X-am 8000 only: When implementing an active over range with the CatEx sensor
(measurement gas: methane), observe chapter 4.16.
Use a standard test gas.
Allowed test gas concentration:
DUAL IR Ex
IR Ex
DUAL IR CO
IR CO
CatEx
O
2
CO
H S
2
H
2
PID HC
PID LC ppb
Test gas concentration of other gasses:
Refer to the Dräger CC-Vision PC software
1) Depending on the selected data set.
2) Depending on the measuring range and the measuring accuracy.
Dräger recommends selecting a test concentration in the middle of the
respective measuring range or close to the expected measuring range.
To carry out a single-gas calibration:
1. Screw the calibration adapter onto the gas detector.
2. Connect the test gas cylinder to the calibration adapter.
3. Connect a second hose (max. length: 2 m) to the second connector on the
calibration adapter to direct the test gas to an exhaust or outside.
4. Switch on the gas detector.
5. Select
6. Enter and confirm the password.
7. Select Maintenance > Single gas cal..
 A dialog for selecting the measuring channel to be calibrated appears.
8. Select the measuring channel.
 A dialog for selecting the calibration appears.
9. Select either zero-point calibration or span calibration.
► For a span calibration: Enter and confirm the calibration concentration.
10.Open the valves on the test gas cylinder.
11. Select
 The measuring channel appears, and the measured value flashes.
44
2
2
HC
> Login.
to start the single-gas calibration or
As soon as the stability check detects a stable measured value, a calibration
is carried out automatically.
1)2)
20 to 100 %LEL / 5 to 100 vol %
2)
0.05 to 5 Vol%
1)2)
40 to 100 %LEL
1)2)
20 to 100 vol %
10 to 25 vol.%
20 to 999 ppm
5 to 99 ppm
0.5 to 4.0 vol.%
100 ppm iBut
5 ppm iBut
to cancel the calibration.
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Technical manual X-am® 3500/8000
1)2)