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Installation Instructions—Flex sensor
The Flex sensor is designed for level measurement of liquids in
vessels like, tanks, pump separators and receivers . The sensor
can be mounted in a standpipe 1" (25mm) or 1 ¼" (32mm) diam-
eter or directly in a vessel with an inner pipe 1" (25mm) or 1
¼" (32mm) diameter. The inner pipe is needed to create suffi-
cient measuring signal and to avoid a swinging wire in a lively
fluid.
The following applies to the design of the system:
•
It must be installed in a vertical position
•
Sensor must have a minimum of 50 mm between the sensor weight end and the bottom of the pipe.
•
The sensor must be installed in an overflow or standpipe where the flow stream and turbulence are minimized.
•
The sensor must be mounted in a standpipe DN25 orDN32. The standpipe must be insulated to avoid boiling of refrig-
erant.
•
The outlet pipe from standpipe shall be mounted in an angle of 5-10 degree from horizontal to secure drainage and oil
pockets in refrigeration systems.
•
The sensor is supplied and can be is installed with a standard non-shielded cable.
If EMC is greater than described in EN 61326, a shielded cable must be used.
Wire level sensor manual 05
Standpipe should be insula-
ted to avoid boiling in stand-
Sensor must have a minimum
of 50 mm between the sen-
sor weight end and the
bottom of the pipe.
Drainpipe most be placed at
an angle of 5-10°, to avoid oil
pockets in standpipe.
October 2021 HBproducts.dk
5
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