VACUUBRAND PC 2001 VARIO User Manual

Page 15

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page 15 of 49

Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999100 / 06/05/2008

Shutdown:

Short-term:
Has the pump been exposed to condensate?
☞ Allow the pump to continue to run at atmospheric pressure for a few minutes (con-

tinuous pumping at a setting of 60).

Has the pump been exposed to media which may damage the pump materials or forms
deposits?
☞ Check and clean pump heads if necessary.
Has the pressure transducer been exposed to media which may form deposits?
☞ Clean pressure transducer if necessary.

Long-term:
➨ Take measures as described in section short-term shutdown.

➨ Separate pump from the apparatus.

➨ Close inlet and outlet port (e. g. with transport caps).

➨ Store the pump in dry conditions.

In case of low boiling solvents when the formation of condensate is unlikely, the use of
gas ballast might be unnecessary.
☞ Operating the pump without gas ballast increases the solvent recovery rates at the

exhaust waste vapour condenser.

In case of condensation:
➨ Check liquid level in both catchpots during operation. Avoid overflowing of the catchpots.

☞ Do not overfill the catchpots. Maximum liquid level approx. 80%, to avoid problems

when removing the catchpots.

➨ Check liquid level in both catchpots regularly and drain catchpots in time.

Removing the catchpots:
Catchpot at outlet:
➨ Remove joint clip, remove catchpot and drain condensate.

Catchpot at inlet:
➨ Admit air or inert gas (via inlet of pumping unit) to atmospheric pressure. Remove

joint clip, remove catchpot and drain condensate.

➨ Reassemble drained catchpots.
Important: Comply with regulations when disposing solvents/condensates. Reuse if
possible, purify if contaminated.

Attention: Notes concerning the operation of the exhaust waste vapour condenser

➨ Check hose connections prior to starting operation of the cooling system.

➨ Check coolant hoses regularly during operation.

☞ Ensure that the coolant outlet pipeline is always free and that it cannot get blocked.

☞ Maximum permissible coolant pressure at the exhaust waste vapour condenser:

6 bar (absolute)

☞ Comply with the maximum permissible coolant pressures of additional components

in the coolant circuit (e.g coolant valve).

☞ Avoid overpressure in the coolant circuit (e.g. caused by blocked or squeezed cool-

ant hoses).

☞ Permissible range of coolant temperature at the exhaust waste vapour condenser:

-15°C to +20°C

☞ The gas outlet (hose nozzle 10 mm) must not be blocked. The exhaust pipeline has

always to be free and pressureless to enable an unhindered discharge of gases.

☞ Connect the exhaust to a suitable treatment plant to prevent the discharge of dan-

gerous gases and vapours to the surrounding atmosphere.

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