5 servicing the eluent degasser, 6 notes on operating the high-pressure pump, Servicing the eluent degasser – Metrohm 930 Compact IC Flex ChS/PP/Deg User Manual

Page 70: Notes on operating the high-pressure pump

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5.5 Servicing the eluent degasser

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930 Compact IC Flex ChS/PP/Deg (2.930.1360)

5.5

Servicing the eluent degasser

The pieces of connection tubing are connected to the eluent degasser
with clamping screws.

Proceed as follows if you have to loosen and reconnect the connection
tubing at the eluent degasser:

Accessories

For this step you need the following accessories:

You can find these parts in the accessory kit: Vario/Flex Basic (6.5000.000)

Wrench (6.2621.050)

Loosening the connecting tubing

1

Loosen the clamping screws with the wrench.

Unscrew the clamping screws by hand and pull them out of the
connector.

Connecting the connecting tubing

1

Insert the clamping screws on the connector and screw them in
by hand.

Tighten the clamping screws with the wrench.

5.6

Notes on operating the high-pressure pump

CAUTION

The pump head is filled ex works with methanol/ultrapure water. Ensure
that the eluent used is miscible with this solvent.

Keep the following recommendations in mind in order to protect the
high-pressure pump from damage as much as possible during operation:

To protect the high-pressure pump from foreign particles, we rec-
ommend filtering the eluent through a filter with a pore size of 0.45
µm and aspirating it via an aspiration filter (6.2821.090).

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