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- Series VMM
Commissioning
Technical changes reserved
- 19 -
5.2
Electrode and magnetic current line
For the separate design, the electrodes and magnetic current cable must be connected in
addition.
CAUTION! Electric current!
Do not connect or disconnect the field coil cable
before the primary power of the meter has been
disconnected!
Connect through the terminal strips in the junction
boxes of the display electronics and the sensor.
Pin assignment:
Terminal Wire color
Function
Magnetic current line (3 wire)
5
brown
Magnetic field current 1
6
white
Magnetic field current 2
7
green-yellow Potential equalization / PE
Electrode line (5 wire*)
22
red
Measuring ground
23
brown
Electrode 1
24
white
Electrode 2
* The wires green-yellow and blue are not connected.
Only use cables as specified in chapter
"Connecting cables“.
The outer shield is grounded by means of special
EMC-compliant cable glands at both ends of the
cable.
The inner shields are connected to terminal 7 and 22 respectively.
6
Commissioning
Before switching on the VMM for the first time, please observe the following instructions.
Check that
the VMM has been installed correctly and that all screw connections are sealed.
the electrical wiring has been connected properly.
the measuring system is vented by flushing.
Startup conditions:
The device is not subject to specific startup conditions. However, pressure surges should be
avoided.
