Thermo Scientific Vanquish VH-P10-A-02 Скачать руководство пользователя страница 203

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Troubleshooting

Vanquish Pumps (VH-P10-A-02) Operating Manual

Page 203

Message and Code

Possible Cause and Remedial Action

Code 4120 The rear seal wash
system has run out of wash
solution.

This message alerts you only when the drop counter functionality of the seal
wash detector is enabled (standard setting).

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Verify that wash liquid is present in the seal wash reservoir.

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Inspect the seal wash lines across the entire flow path for indications of
blockage or leakage. Verify that all seal wash lines are properly connected and
routed. Replace the seal wash lines as necessary (see

section 7.5.2, page 129

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Inspect the peristaltic tubing for indications of blockage or damage. Replace
the tubing as necessary (see

section 7.5.2, page 129

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Verify that the peristaltic tubing is properly inserted in the seal wash pump
and that the lever of the pump is not blocked.

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Inspect the electrodes of the seal wash detector for contamination or damage.
Replace the seal wash detector as necessary (see

section 7.5.3, page 132

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Start an additional seal wash cycle in Chromeleon (see

section 6.7, page 93

While the wash cycle is running, inspect the pump heads. If droplets leave the
pump head at the rear, the seal wash seal is defective. Replace the seal wash
seal (see

section 7.7.7, page 153

Code 4121 Piston seal leakage
has exceeded the recommended
limit.

This message alerts you only when the drop counter functionality of the seal
wash detector is enabled (standard setting).
Test the pump for piston seal leakage and take the recommend action (see

section 7.7.9, page 161

Code 4122 The rear seal leak
sensor detects drops constantly.

This message alerts you only when the drop counter functionality of the seal
wash detector is enabled (standard setting).
Inspect the electrodes of the seal wash detector for contamination or damage.
Replace the seal wash detector as necessary (see

section 7.5.3, page 132

Code 4125 Degasser malfunction The vacuum level monitoring function detected insufficient degasser vacuum.

Turn the pump off and on again. Check the degasser vacuum in Chromeleon.
After about 1 minute, the setting should change from

NotOk

. If the

degasser vacuum is still insufficient, the degasser may be leaky. Locate the

DegasserPressure

property in the

Command

window, write down the pressure

reading, which can provide helpful information to identify the source for the
problem, and contact Technical Support.

Code 4127 The pump drive is
still in undock position. Please
execute a dock command.

This message alerts you during pump maintenance (for example, when replacing
the piston seals or pistons) when you try to start the pump while the pistons are
not yet in the correct position for normal operation. To return the pistons into
the correct position, perform a

Dock

command.

Code 4148 Can't perform this
command while the flow is on.

You tried to run a self-test while the flow rate was not yet down to zero. Apply a
flow of 0 and repeat the command.