Metrohm 730 Sample Changer - Manuel (Page 165)

5.1 Error Messages
730 Sample Changer, Appendix
162
* dos.unit ## overload
The dosing unit indicated cannot execute a dosing
command. Check burette and piston.
* dos.unit## not ready
The dosing unit selected cannot execute the desired
command because it is busy carrying out another ac-
tion or the current instrument state does not allow it.
* invalid position
The sample position selected is defined as a special
beaker or the special beaker chosen is not defined.
* invalid rack code
The rack code read by the changer could not be
found in the internal position tables.
* missing beaker
After a MOVE command no beaker could be found at
the selected position.
* rack data missing
No sample rack is in position or no rack data can be
found for the sample rack that is in place.
* raise lift first
Turning of a rack could not be carried out because a
lift was below the defined shift position.
* RS232 error ##
The transmission parameters of the RS232 interface
do not agree with those of the receiving instrument.
* user memory full
The memory for the user-defined methods is full.
Before saving a new method, methods that are not
used or used only rarely must be deleted.
* wrong rack
The rack positioned is not the one that was assigned
to the method under 'parameters'.
trap error XXX
Unexpected program error, turn instrument off and on
again.
No display, LEDs tower 1
LCD error (system error 7). Please contact Service.
and tower 2 are lit up
Illegible display when
Wrong 'external bus' address. Set address to 0 and
switching on, LED tower 2 lit
execute RAM-initialization 'assembly' (see page 175).