Metrohm 930 Compact IC Flex User Manual

6.7 Servicing the high-pressure pump
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930 Compact IC Flex Oven/SeS/PP (2.930.2500)
Cleaning the inlet valve
Spare parts If the inlet valve cannot be cleaned, you will need a new inlet valve
(6.2824.170) for this step.
1
Removing the inlet valve
￭ Unscrew the connection capillary to the connection of the eluent
aspiration tubing (17-7).
￭ Start by loosening the inlet valve holder with the adjustable
wrench (1) and then unscrew it by hand (2) and remove it.
￭ Remove the inlet valve from the inlet valve holder (3).
2
Cleaning the inlet valve
￭ Start by rinsing the inlet valve in the direction of eluent flow using
a wash bottle filled with ultrapure water, RBS™ solution or ace-
tone. (The direction of eluent flow is marked on the valve by an
arrow.)
The rinsing solution must come out at the valve exit.
If no more solution comes out, then the valve is blocked.
￭ Rinse the inlet valve in the direction opposite the eluent flow
using a wash bottle filled with ultrapure water, RBS™ solution or
acetone.
The rinsing solution may only come out at the valve exit.
The inlet valve must be replaced if it is still clogged after cleaning.

Metrohm 930 Compact IC Flex Specifications

General

Brand	Metrohm
Model	930 Compact IC Flex
Category	Laboratory Equipment
Language	English