Metrohm 787 KF Titrino - Manual (Page 43)

3.1 Error and special messages
787 KF Titrino
39
3 Error messages, Troubleshooting
Data transfer inoperative See measures on page 41.
3.1 Error and special messages
change solvent
The limit volume of the reagent volume counter "limit KF reag."
has been reached..
Exit: Change solvent and press <CLEAR>.
check electrode
There is a break or short circuit. Possible causes and
rectification of the fault:
- the electrode is not plugged in ⇒ plug it in
- the electrode is not immersed in the solution ⇒ immerse it
- the electrode is defective ⇒ use new electrode.
- the electrode cable is defective ⇒ use new cable.
The electrode test can be switched off under the <PARAM>
key.
Exit: Rectify fault or <STOP>.
check exchange unit
The Exchange Unit is not mounted (properly).
Exit: Mount Exchange Unit (properly) so that the coupling
engages or <STOP>.
cylinder empty!
During dispensing with <DOS> an entire cylinder ahs been
dispensed.
Exit: Press <STOP/FILL>.
division by zero
The result could not be calculated as a divisor in the formula
was equal to zero.
Exit: Enter appropriate value.
stop V reached
The determination has been stopped as the stop volume has
been reached.
system error 3
The instrument adjustment data have been overwritten.
Exit: <CLEAR>. Default adjustment data are set. The error
message appears each time the instrument is switched on
until it has been readjusted (Metrohm service).
????
The result exceeds the valid data range or too many decimal
places are needed to display.