Vacuubrand BVC professional G User Manual download pdf (Page 60)

page 60 of 68

➨ Position bottle in the support.

➨ Depending on BVC version, position tubing

to hose nozzle or quick coupling.

Checking the ultimate vacuum

➨ After any intervention at the equipment (e.g., repair / maintenance) the

ultimate vacuum of the pump has to be checked.

The pump achieves its ultimate vacuum if switching off at an atmo-

spheric pressure > 1000 mbar absolute, a maximum underpressure of

850 mbar (8 LEDs glow) and a leak-free apparatus.

➨ Screw elbow tting with silencer to the outlet

of the pump (max. 5 turns).

➨ Remove adhesive tape at the cover plate.

If the pump does not achieve the ultimate vacuum:

- Whenever the diaphragms and valves have been replaced, a break-in

period of several hours is required before the pump achieves its ulti-

mate vacuum.

- In case of an unusual noise, switch off pump immediately and check

clamping disc positions.

If the specied ultimate vacuum is not achieved, and if this does not

change after the break-in period:

If necessary recheck valve seats and pump chamber.

NOTICE

In case of a false alarm of the level sensor after replacing diaphragms

and valves perform an adjustment of the level sensor, see section “Ad-

justment of the BVC level sensor to work properly with a new bottle, or to

correct false alarms”.

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Vacuubrand BVC professional G User Manual Page 60