3 INSTALLATION
3.3.6 Electrical wiring of transmitter 8025, compact, 12-30 VDC, with
relays and cable glands
Before wiring the device, please read § 3.3.1, 3.3.3 and 3.3.4 carefully.
Lift the transparent lid after having unfastened the screw. Remove the cover of the device by
unscrewing the 4 screws, pass the cables through the cable glands and connect according
to the pin assignment below.
Always seal the unused cable gland using the supplied obstructor to en-
sure the tightness of the device.
Unscrew the cable gland nut, insert the obstructor and screw the nut back
onto the cable gland.
Only manipulate the switches when the device is not powered.
4-20 mA output
Switch [1]
Strap to be removed if the
4-20 mA output is used
Connection of relay 2 to
Type 121
Without
SOURCE SINK
Fig. 3.8
Wiring of the 8025, 12-30 VDC, with relays and cable glands
L- (0V)
L+ (12-30 VDC)
Without
SOURCE SINK
With
Supply
12..30Vdc
OUTPUT
+
-
Switch [1] :
- Set to "SOURCE" position if 4-20 mA output is not used (Strap not removed)
- Set to "SOURCE" position if 4-20 mA output is connected to a PLC in sourcing
mode
- Set to "SINK" position if 4-20 mA output is connected to a PLC in sinking mode
E-18-
FLOW TRANSMITTER 8025
Pulse output "minus"
Pulse output "plus"
Connect the shielding of the power supply cable
Earth (internally connected to the
earth plug)
Switch "Sensor Type" :
PULSE
see § 3.3.4
FLOW SENSOR
COIL
NPN
Flow sensor connection
+
-
Connection of relay 1 to
Type 142
Relay cables must be fitted here to the
board using the supplied cable clips
(see § 3.3.3)