Metrohm 756 KF Coulometer - Manual (Page 115)

5.2 Error and special messages
756/831 KF Coulometer, Instructions of Use 107
pear each time the Coulometer is switched on.
Exit: New start.
silo empty
The silo memory is switched on but is empty and a titration
has been started.
Corrective action: Fill at least the first 1 silo line before starting
the first titration.
Exit: <CLEAR>.
silo full
The silo memory is full (255 lines).
Exit: <CLEAR>.
stop time reached
The titration has been stopped as the max.titration time 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).
system error 14
No communication between the Coulometer and the con-
nected Remote Box.
Possible causes:
-
The Remote Box was connected when the Coulometer was
running
-
Coulometer has a fault.
-
Remote Box has a fault.
Remedy: Set under <CONFIG>,
>peripheral units
,
Remote
Box: OFF
, switch off Coulometer, take away Remote Box and
switch on Coulometer. Contact Metrohm service.
time-out PC keyboard
A connected PC keyboard has been used to call up an ad-
dress (e.g. <F12>) and the connection has then been inter-
rupted.
Possible causes:
-
Remote Box has a fault.
-
PC keyboard has a fault.
Exit: Correct fault and switch Coulometer off/on.
transmission error
With a Remote Box connected characters are received which
cannot be interpreted.
Possible causes:
-
Wrong key combination has been pressed.
-
Wrong PC keyboard has been selected.
-
The barcode reader supplies garbled characters.
-
The Remote Box has a fault.
Exit: Rectify fault and switch Coulometer off/on.
validate instrument
Validation interval has elapsed.
Exit: <CLEAR> or new start.
work.conditions not ok
During the titration there was too high a resistance at the
generator electrode. The result could be incorrect. Reasons:
- Not enough reagent in the titration vessel.
- Gas bubbles when working with the oven: Set smaller gas
flow at the oven.