Metrohm 719 S Titrino - Manual (Page 107)

4.1 Error and special messages
719 S Titrino
103
4 Error messages, Troubleshooting
Data transfer inoperative See measures on page 101.
4.1 Error and special messages
XXX bytes missing
XXX bytes missing. For the storage of a method or a silo line
XXX bytes are missing.
Remedy: <QUIT>. Delete methods no longer needed or use
fewer silo lines.
check electrode
With polarized electrodes. 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>.
check T-sensor
No temperature sensor is attached (with MEAS T or if the
temperature monitoring is active).
Exit: Connect Pt100 or Pt1000 or <STOP>.
division by zero
The result could not be calculated as a divisor in the formula
was equal to zero.
Exit: Enter appropriate value.
manual stop
The determination has been manually stopped.
missing EP
An EP needed for calculation in a formula is missing.
no EP set
In SET, no EP has been set.
Exit: <STOP> and set EP.
no method
The method required by the sample data from the silo memory
or in a TIP sequence is not available in the method memory.
Exit: <CLEAR>.
no new com.var.
The common variable could not be assigned as the result or
the mean value could not be calculated. The old value remains
in force.
no new mean
No new mean value has been calculated as at least one
quantity stipulated for mean value calculations could not be
calculated.
not valid
A value is not available.
overrange
The measuring range of ±2 V has been exceeded. Overrange
replaces the corresponding measured value (pH, U, I or
temperature).
Exit: Rectify error, <STOP> or >MEAS/HOLD>.
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).