Owner manual

12
IM 12B07C05-01E
Table 3-1. Impedance measuring jumpers
Jumper Settings Application & Sensor Connections
1613 17 15
NormalpHsensors(includingFU20).
Glass sensor on Input 1.
Reference sensor on Input 2.
Specialelectrodesusing2glasssensors.
(e.g. Pfaudler)
ORP(Redoxmeasurement).
Metal sensor on Input 1.
Normal reference on Input 2.
ORP(pHcompensated)orrHmeasurement
Metal sensor on Input 1.
pH glass (as reference) on Input 2.
63
66
65
62
61
22
21
11
12
14
IN
Imp.
LOW
IN
13
17
15
16
Imp.
LOW
Figure 3-9a. Jumper placement for low
impedance setting
Figure 3-9b. Jumper holders in cover
3-6. Wiring the sensor system
3-6-1. Impedance measurement jumper settings
Impedance measurement is a powerful
diagnostic tool. In order to perform impedance
measurements it is important to have a good
jumper setting. The table and figure below will
guide you to make the right setting.
Note! It is important to decide first which
application and which settings are
appropriate for the installation. This
decision is best done before the
jumpers are installed, because the
cables will rest on top of the jumpers in
their installed positions.
Figure3-9a.showsthejumperpositionsrelated
to the types of measurement stated in Table
3-1.
ForLowimpedancetheLowshouldbeshorted
byajumper.Seedrawingbelow.
When shipped, two jumpers are placed in a
plastic bag and supplied with the product. Typi-
cal setting for pH measurement, 13 is shorted
to become a low impedance input.Unused
jumpers should be stored in jumper holders in
thecover,asshowninFigure3-9b.