Microlab
®
STAR Service Manual
10-8
Error Handling (continued)
Incident Corrective Action
Pipetting Channels Step loss.
Dispensing Drive:
In General, try to run the specific drive with service
software to determine the degree of malfunction.
1. Ensure the Pipetting Head fixing screws are
mounted with the exact torque tension defined in
section 7.8 Pipetting Heads on page 7-32.
2. Clean Dispensing Spindle by removing all old
grease, and slightly grease it with new grease.
3. By using Movement Sensors / Pipetting Channel
Menu from Service Software, perform a whole
stroke run-in (approx. 10 times).
Use Service Software CONTROL ==>
MOVEMENTS/SENSORS ==> PIPETTING
CHANNEL and RUN in Dispensing Drive from
corresponding Channel
4. If dispensing Drive is blocked at its lower end:
Dispensing Spindle is not visible, the spindle is
down - then send single command:
P#DSds00500dv05000dr200dw7dt0
The Spindle must come up, otherwise no
recovery is possible.
Note: when the Spindle is down, not visible, then
parameter “dt0” must be used.
5. If dispensing Drive is blocked on its upper end:
Dispensing Spindle is visible, the spindle is up -
then send single command:
P#DSds00500dt1dv05000dr200dw7
The Spindle must go down, otherwise no
recovery is possible.
Note: when the Spindle is up, visible, then
parameter “dt1” must be used.
6. After sending these comands use P#AI which
resets the Firmware to its default values - this is
absolutely necessary.
7. If no improvement, replace Pipetting Head.
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