Special functions for maintenance
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4. Purge compressor
Prior to shut down the service cart or after recovery of humid gas the SF
6
gas remaining in the service
cart should be dried to avoid corrosion inside the device. The SF
6
gas in the internal storage vessel is
not purified.
Attention: There is no gas and air separation.
It is possible to filter humidity and particles out of the SF
6
gas.
1. Do not connect any gas compartment and storage tank to the coupling pos. 101 and 103.
2. Select the “4. Purge compressor” function by means of the knob switch.
3. Start the function by pressing the green “I” key.
4. The filling pressure reducer pos. 181 can be opened (max. filling pressure).
5. After about 6 minutes set the pressure on the gas compartment side to < 0 psig. by means of the
filling pressure reducer pos. 181. Then the gas flows through the suction pump.
The function runs for max. 10 minutes and stops automatically. But the function can also be stopped
by pressing the red “0” key.
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