TA I
NSTRUMENTS
DSC A
UTOSAMPLER
CE 6–47
Error Messages
Waiting for tray
Problem: The Autosampler CE is attempting to
remove a pan from the tray or return a
pan to the tray, but the tray is missing
or is not fully inserted.
Solution: Reinsert the tray, making sure you
push it all the way back. If this does
not correct the problem, you should
test the tray sensor with the TEST key
(see page 6-9).
Z step error
+xxxxx steps
(or xxxxx steps)
Problem: The z-axis motor had to execute the
wrong number of steps to complete a
movement. The number is positive
when the turret assembly is moving
down, and negative when it is moving
up. Small numbers of lost steps (<25)
indicate a loose or worn gear, whereas
frequent errors involving larger
numbers indicate that the motor is
binding.
Solution: The Autosampler CE immediately
corrects for motor step errors, so this
error condition usually does not require
any operator action. If your Autosam-
pler CE starts showing step errors
with increasing frequency, however,
you should have the unit serviced.
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