Metrohm 824 Easy Sample Changer - Manual (Page 43)

7.1 Error messages
824 Easy Sample Changer, Troubleshooting
37
7 Troubleshooting
7.1 Error messages
If a fault or error occurs then LEDs 1 to 4 start to blink in particular
combinations (binary error code). The status LED goes out.
HOLD
SELECT
<START>
or
<STOP>
Instrument error messages (blinking LEDs 1…4) must be acknowl-
edged with the <HOLD> key. The 824 Easy Sample Changer then
enters the HOLD mode.
When the fault has been remedied then the run can be continued with
the <START> key or canceled with the <STOP> key.
LED 1…4 Description / Remedy
Error 1: Beaker missing
After a rack rotation no beaker is found at the moved-to position.
Remedy: Press <HOLD>. Position beaker and press <START> or
cancel sample series with <STOP>.
Error 2: Lift not in rotating position
The sample rack must be at or above the predefined rotating position
before it can rotate.
Remedy: Press <HOLD> and <STOP>. Move lift upward with <Ï>
and then rotate rack again with <Í> or <Î>.
Error 3: Sample rack error
An incorrect or no sample rack at all is in position. Possibly the magnet
code of the rack cannot be read or the instrument does not recognize
the magnet code.
Press <HOLD>. Position Metrohm standard sample rack. Press
<STOP> or <START>.
Error 4: Invalid rack position
An attempt has been made to move to an invalid rack position (method
error).
Remedy: Press <HOLD> and <STOP>. Check method.
Error 5:
Sample changer not ready
The 824 Easy Sample Changer cannot carry out the command as it is
busy doing something else.
Remedy: Press <HOLD> and <STOP>. Wait and then repeat com-
mand.
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