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Dräger Polytron 7000
Calibration
WARNING
Health hazard from test gas
Breathing in of test gas can be harmful to health or lead to death.
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Do not inhale the test gas.
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Observe risks connected with the test gas, hazards notes and safety advice (see
for example safety data sheets, instructions on the testing media).
CAUTION
Alarms triggered by test gas
Test gas that is still present can trigger alarms.
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Make sure that the supply of test gas is ended.
6.2.1
Gas detector without pump module
The test gas must be fed without being pressurised. This corresponds, e.g. if a test
gas cylinder is used, a flow rate of 500 mL/min. If test gas ampoules are used,
unpressurised supply is automatically the case.
Using a test gas cylinder
Equipment:
– test gas cylinder with pressure reducer, in the case of aggressive gases with
stainless steel pressure reducer
– calibration adapter with hose nozzles (order no. 68 10 536)
– hose, type appropriate to the gas properties (e.g. FKM hose order
no. 12 07 068)
1. Connect hose to calibration adapter and test gas cylinder.
2. To discharge the test gas, connect a hose to the second connection of the
calibration adapter.
3. Plug the calibration adapter onto the sensor.
Using test gas ampoules
Test gas ampoules are only used for the sensitivity adjustment for the target gas.
Equipment:
– calibration flask (order no. 68 03 407) with the corresponding adapter
– Test gas ampoule
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