Operating manual EMGZ307
9
6.3
Wiring
fig. 4:
Wiring diagram
E307004e
There can be connected 1 or 2 force sensors to the measuring amplifier. Using 2 force
sensors, the connections are internally wired parallel. The output signal of the
measuring amplifier then will correspond to the average value of the 2 sensors.
The connection between force sensors and measuring amplifier has to be done using
2x2x0.75mm
2
[AWG 18] shielded twisted-pair cable. (With cable length below 15m,
2x2x0.25 mm
2
[AWG 23] is also suitable.) The cable must be installed separate from
power lines.
Caution
Improper handling may damage the fragile electronic equipment! Don’t touch the
electronic unit! Don’t use rough tools as screwdrivers or pliers! Touch earthed metal
part to discharge static electricity before touching the electronic unit!
Caution
Bad earth connection may cause electric shock to persons, malfunction of the total
system or damage of the electronic unit! It is vital to ensure that proper earth
connection is done.
Note
The housing complies with IP67 only if no cable bushing stays open. Therefore, not
needed PG glands have to be closed.
