5.7 Connecting sensors
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
30
￭￭￭￭￭￭￭￭
916 Ti
‑
Touch
Figure 16
Unplugging the 854 iConnect
2
Leave the mini USB adapter cable (2) plugged into the socket of the
instrument (1).
NOTICE
Position the mini USB adapter cable in such a way that it cannot be
removed by accident.
NOTICE
For further information on the 854 iConnect, see
Manual iConnect 854,
article number 8.854.8002
.
5.7.7
Differential potentiometry
Potentiometric measurements with high-ohm measuring chains can be
disrupted by electrostatic and electromagnetic fields in media with low
conductivity. Use our 6.0229.100 Solvotrode or other special electrodes
for pH measurements in organic solvents. If no reliable measurements are
possible with these, then a 6.5104.030 (230 V) or 6.5104.040 (115 V) dif-
ferential amplifier can be used. The differential amplifier is connected to
the high-ohm measuring input (
Ind.
).
