Purging The Wash Pump - Hitachi CHROMASTER 5160 Instruction Manual

5.9 Purging the Wash Pump

(1) Using the WPUMP command, deliver wash fluid1 for about
3 minutes to replace the fluid of the flow path between the
solvent filter and the wash port with the wash fluid1.
FUNC
8 ENTER
1 ENTER
(Refer to 3.2.2 Analyzing Operation (5) Functions (h)
WPUMP for details.)
NOTES: To suspend delivering of the wash pump, select
OFF in the WPUMP PURGE screen, or press
the IDLE key. Delivering fluid is not suspended
automatically.
(2) When using two wash fluids, replace the fluid with a new
one according to the same procedure.
Using the WPUMP command, deliver wash fluid2 for about
3 minutes to replace the fluid of the flow path between the
solvent filter and the wash port with the wash fluid2.
FUNC
8 ENTER
1 ENTER
(3) Check that there are no air bubbles in the tube between the
wash pump and the syringe valve. And check that
operational noise of the washing pump is reduced.
NOTE: If the wash pump isn't filled with wash fluid, or air
bubbles are entered into the wash pump, the
operational noise becomes louder.
In this case, refer to 5.10 Discharge of Air Bubbles
from Wash Pump to remove air bubbles. Please
avoid air bubbles in the wash pump for its original
performance.
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