Metrohm 751 GPD Titrino - Manual (Page 193)

4.1. Error and special messages
751 GPD Titrino
190
rate too low
With DOS the calculated rate is too low. It can not be achieved
with the mounted Exchange Unit.
Exit: <CLEAR> and use Exchange Unit with smaller buret
volume or change dosing conditions.
rates not corresponding
With STAT the number of rates that could be calculated is not
equal to the number of time windows set or the mean rate C80
could not be calculated. The calculation of a rate requires at
least 4 points.
result out of limits
The result lies outside the limits which were defined in the
method, see page 75.
Exit: Calculate result again or new start.
same buffer
In the calibration sequence the voltage difference between the
first and second buffer is < 6 mV.
Exit: <QUIT> and change buffer or <STOP> (abort
calibration).
sample size out
The sample size is outside the limits which are defined in the
method, see page 19.
Exit: Enter new sample size.
save lines OFF
The function "save lines" is not active although a submethod of
TIP contains assignments to C24 or C25.
Exit: <CLEAR> and switch on "save lines" under <SMPL
DATA> key.
Warning: The results of this line will not be saved.
second TIP call
In TIP no further TIP can be called up as a submethod.
Exit: <CLEAR> and define new sequence.
service is due
The service interval has elapsed. Contact Metrohm service so
that the Titrino can be serviced. This message will appear
each time the Titrino is switched on.
Exit: New start.
silo empty
The silo memory is switched in but empty and a titration has
been started. Corrective action: At least the first 1 silo line
before starting the first titration.
Exit: <CLEAR>.
silo full
The silo memory is full up. Corrective action: If you have filled
less than 255 silo lines, you can create more space by
deleting old methods no longer needed. 1 silo line needs
18...120 bytes.
Exit: <CLEAR>.
stop EP reached
A DET or MET titration was stopped as the stop criterion "stop
EP" was reached.
stop meas.val.reached
A DET or MET titration was stopped as the stop measuring
value pH, U or I was reached.
stop rate reached
STAT has been stopped as the stop rate has been reached.
stop time reached
SET or STAT has been stopped as the stop time has been
reached.
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).