Special functions for maintenance
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8. Pressure test compressor
To check the compressor for correct function a pressure test has to be carried out.
1. Select the “8. Pressure test compressor” function by means of the knob switch.
2. Connect the SF
6
gas cylinder to the coupling pos. 103 or open the ball valve (if available) to the
pressure tank.
3. Start the function by pressing the green “I“ key.
4. Set the filling pressure reducer to p= 0 psig input pressure. The pressure can be read on the gas
compartment pressure indication on the operating panel.
5. Observe the increase in pressure on the gauge pos. 162.
6. The function stops when reaching the final pressure. (Pressure value about p 696 psig).
7. After the test reduce the pressure by opening the solenoid valve pos. 134. This is carried out in
manual operation.
8. If the indicated final pressure is not reached during the functional test the valve seats and piston
rings must be checked (see operating instructions of the compressor).
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