Helmer UltraCW, Руководство по обслуживанию

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Troubleshooting
3 Troubleshooting
Before taking actions as described in this section, make sure that operational issues have been addressed as
described in the Operation Manual. Also, be sure that the cell washer operator has followed the appropriate
laboratory procedures and used the appropriate materials for the task.
This section describes some problems you may experience, explains possible causes, and provides actions
you can take to correct them.
!
WARNINg: Review all safety instructions prior to completing troubleshooting
recommendations. For more information, see Section 1, “Working safely.”
3.1 Troubleshooting general operation problems
Problem Possible Cause Action
The cell washer is
turned on, but nothing
is displayed on the
message screen.
There is no power to the
cell washer.
1 Verify that the outlet is operational.
2 Try the following tasks in order, testing after
each to determine if it solved the problem:
a Replace the fuse.
b Replace the main power switch.
c Replace the transformer.
d Replace the RFI filter.
The display contrast is
set too low.
► Adjust the display contrast. For instructions,
see Section 4.5, “Adjusting the display
contrast.”
A part in the LCD circuit
is faulty.
► Try the following tasks in order, testing after
each to determine if it solved the problem:
1 Replace the control panel.
2 Replace the power supply board.
During a saline check,
the pump is not making
any sound and saline is
not being dispensed.
A part in the pump
system is faulty.
► Remove the pump tubing from the pump. With
the pump tubing removed, perform a saline
check.
► If the pump does not operate, replace the
pump.
► If the pump does operate, replace the
pump tubing, which may have hardened
over time.
During a saline check,
the pump is operating,
but saline is not being
dispensed correctly.
A part in the liquid
handling system circuit
is faulty.
► Try the following tasks in order, testing after
each to determine if it solved the problem:
1 Replace the flow meter.
2 Replace the liquid handling board.
The tubes were not
decanted when they
were programmed to
do so.
The rotor is faulty.
► Verify that all the rotor locks (decant hooks)
are intact. If any are broken off or damaged,
replace the rotor.
A part in the motor
circuit is faulty.
► Try the following tasks in order, testing after
each to determine if it solved the problem:
1 Replace the motor.
2 Replace the frequency converter. For
instructions, see Section 4.7, “Replacing
the frequency converter.”
3 Replace the power supply board.