WARNING!
Danger of electric shock
In the event of a defect, there is a risk of electric
shock if conductive feed chemicals are present.
– For safety reasons, we recommend connecting
to protective low voltage, e.g. in accordance
with EN 60335-1 (SELV).
CAUTION!
Danger resulting from unnoticed diaphragm rup‐
ture
If the pump has been ordered with an electric dia‐
phragm rupture sensor, it must also be electrically
installed.
– Electrically wire the enclosed diaphragm rup‐
ture sensor to a suitable monitoring device.
CAUTION!
Additional damage with a ruptured diaphragm
Never allow the diaphragm to rupture fully if
damage can be caused by hydraulic oil mixing with
the feed chemical.
– The diaphragm rupture sensor must switch off
the pump immediately.
Only restart the pump once the diaphragm has
been replaced.
a) Diaphragm rupture sensor with switch contact
–
The cable can be connected as required.
b) Namur sensor, inherently safe
Make sure that the monitoring/feed equipment installed by the cus‐
tomer is capable of evaluating the current variations of the Namur
sensor to indicate a diaphragm rupture!
WARNING!
The following applies in areas at risk from explo‐
sion:
– Note the details of the type examination certifi‐
cate PTB 00 ATEX 2048 X for the Namur
sensor NJ1.5-8GM-N as well.
Diaphragm rupture sensor (optional)
Installation
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