Special functions for maintenance
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7. Evacuation of filter
After the exchange of the filters the air must be evacuated from the filters.
Otherwise the SF
6
-gas is mixed with ambient air.
Only carry out this function if there is air in the filters.
Otherwise the gas is released into the atmosphere.
1. Select the “7: Evacuation of filter “ function by means of the knob switch.
2. Open the filling pressure reducer pos. 181.
3. Start the function by pressing the green “I” key.
4. If the filter is evacuated to the desired final vacuum (< 0.75 Torr) stop the function with the red “0”
key.
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