CAUTION!
Danger resulting from unnoticed diaphragm rupture
If the pump has been ordered with an electric diaphragm rup‐
ture sensor, it must also be electrically installed.
– Install the enclosed diaphragm rupture sensor electri‐
cally to a suitable monitoring device.
a) Diaphragm rupture sensor with switch contact
–
The cable can be poled as required.
b) Namur sensor, inherently safe
The monitor / power supply installed by the customer must be able to eval‐
uate the current variations of the Namur sensor for indicating a diaphragm
rupture!
Connect the stroke sensor to a suitable monitoring device according
to the technical data provided with the monitoring device and that of
the stroke sensor - see chapter "Technical data".
1. Install the cable which originates from the pacing relay - see the
figure in the chapter entitled "Overview of equipment and control
elements": Cable A, left.
The cable polarity is unimportant.
2. Install the power supply cable to the pacing relay PCB - see the
figure in the chapter entitled "Overview of equipment and control
elements": Cable B, right.
CAUTION!
Warning of overload
If the current through the relay becomes too high, it
can be destroyed by heating.
– Fit a circuit breaker.
Pacing relay terminal output data
Data Value Unit
Maximum voltage 24 VDC
Maximum current 100 mA
Closing duration, approx. 100 ms
Service life *
50 x 10
6
(10 V,
10 mA)
Play
Stroke sensor (identity code specification
"Stroke sensor": 3)
Pacing relay (identity code specification
"Stroke sensor": 2)
Installation, electrical
26
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