6
5 Installation
5.1 Installation of the sensor
Before installing and removing the unit: Make sure that no pressure is
applied to the system�
►
Insert the unit in a process connection with a suitable thread�
►
Tighten firmly�
Tightening Torque 1/4-18 NPT threads: 2���3 turns after finger tightened�
To ensure leak-free joints for NPT threads, sealants and lubricants
commonly used in the industry should be used�
5.2 Installation of the grounding clamp
If installed in an ungrounded pipe system (e�g� plastic pipes), the unit
must be grounded� The grounding clamp (order no� E43321) serves this
purpose� It is designed to discharge noise voltages in case the sensor is
mounted to ungrounded installations� It is available as an accessory and to
be used preferably on PN42xx series sensors�
The earthing strap and the clamping device must be in contact with the
sensor sleeve outside of the area where the type label is!
►
Attach the clamping device
of the grounding clamp to the
sensor in the area beneath the
M12 connector (A)�
►
Bend the earthing strap around
the sensor sleeve and insert
it in the slot of the clamping
device (B)�
A
B
