Metrohm 838 Advanced Sample Processor Manual - Manual (Page 84)

3.6 Error messages
76 Metrohm 838 Advanced Sample Processor, Appendix
3.6 Error messages
QUIT
If a fault should occur then the execution of the active command will be
stopped and an error message shown (display blinks). This must be
confirmed with the key.
If the Sample Processor is processing a series of samples when the
fault occurs then it will switch to the HOLD status. When the cause of
the fault has been found and remedied the sample series can be re-
started with the next command by pressing the key. If it is
not possible to remedy the fault then the method can be stopped with
.
List of possible error messages and their causes:
∗ battery low
The battery for the permanent storage of the user data must
be replaced.
∗ beaker too small
The rack position which has been moved to has a smaller
beaker radius than that defined as the min. beaker radius for
the particular lift. There is a risk of damage. Check the sam-
ple rack, its configuration settings and those of the selected
tower.
∗ changer overload
Load too high, or resistance to the action to be carried out.
After the Sample Processor will be initialized again.
∗ dos.## not exec
A fault has occurred at the given dosing device.
∗ dos.## not ready
The selected dosing device cannot carry out the particular
command as it is carrying out a different action or the current
instrument status does not allow it to be carried out.
∗ dos.unit ## missing
The selected dosing device has not been connected.
∗ dos.unit ## overload
The selected Dosing unit cannot carry out a dosing com-
mand. Check the buret and piston.
∗ invalid position
The selected sample position does not exist or is defined as
a special beaker or the selected special beaker has not been
defined. The selected lift position may lie outside the max.
stroke path.
∗ invalid rack code
The rack code read in by the Sample Processor cannot be
found in the internal table.
∗ rack data missing
No sample rack in position, or no rack data can be found for
the sample rack currently on the turntable.
∗ RS232 error
The transmission parameters of the RS232 interface do not
coincide with those of the receiving device.