KROHNE OPTISWITCH 5100 C, Руководство пользователя

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4 Mounting
OPTISWITCH 5100 C, 5150 C • Contactless electronic switch
30428-EN-210701
The max. permissible pressure is specified in chapter " Technical
data " or on the type label of the sensor.
The vibrating level switch is a measuring instrument and must be
treated accordingly. Bending the vibrating element will destroy the
instrument.
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
Use the hexagon above the thread for screwing in.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory. They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
4.2 Mounting instructions
OPTISWITCH 5100 C, 5150 C has a defined thread starting point.
This means that every OPTISWITCH 5100 C, 5150 C is in the same
fork position after being screwed in. Remove therefore the supplied
seal from the thread of OPTISWITCH 5100 C, 5150 C. This seal is not
required when using a welded socket with O-ring in front.
Keep in mind that this welded socket is not suitable for coated instru-
ment versions.
Screw OPTISWITCH 5100 C, 5150 C completely into the welded
socket. The later position can be determined already before welding.
Mark the appropriate position of the welded socket. Before welding,
unscrew OPTISWITCH 5100 C, 5150 C and remove the rubber ring
from the welded socket. The welded socket has a marking (notch).
Weld the socket with the notch facing upward, or in case of pipelines
(DN 32 up to DN 50), aligned with the direction of flow.
Handling
Cable entries - NPT
thread
Cable glands
Welded socket