bürkert 8205 Bedienungsanleitung Seite 68

3 INSTALLATION
3.2.4 Electrical connection, panel-mounted version
Before wiring the device, please read § 3.2.1.
Install the transmitter as described in § 3.1.2. Connect the terminals according to the pin
assignment described in fig. 3.6, 3.7, 3.8 and 3.9.
Switch : see
Fig. 3.5
Connect the shielding
of the transistor output
cable
Connection of the 2
relays or the 2
transistors:
see Fig. 3.6 and 3.7
Connection of
the alarm relay
Fig. 3.9
Electrical connection, panel-mounted version
Connection to a PLC
The transistor outputs of the pH controller 8205 can be connected to a PLC, either in
NPN or PNP mode. See Fig. 3.7.
The 4-20 mA current output of the pH controller 8205 can be connected to a PLC.
See Fig. 3.8.
L+ (15-30 VDC)
4-20mA
CURRENT
SOURCE SINK
1
2
PE
3
4
Fluid potential
REL:230VAC/3A
5
PE
TRANS:5..30VDC/100mA
+
{
+
{
Connection of the
temperature sensor:
1: red wire
2: blue wire
3: white wire
4: green/yellow wire
5: shielding of the cable
1
2
3
4
5
Fluid equipotential
PH CONTROLLER 8205
L- (0 V)
Connect the shielding of the power supply cable
Iout L+ L- PE
Supply
12..30Vdc
PT1000
T
PE
(third electrode)
Pt1000
E-18-
Connection of the pH
sensor
Relay or transistor
cables must be fitted
here to the board using
the supplied cable clip
(see § 3.2.2)