5
RS85
VIBR ATING FORK LEVEL SWITCH | OI/RS85-EN REV. K
2 Installation
Mounting
After unpacking the unit, inspect it for any evidence of
shipping damage. Inspect the fork tines to insure that they
are not bent. Forks should be parallel to each other. Any
claims for damage due to shipping must be filed with the
carrier who handled the package (s).
• Select a mounting location for the switch and the sensor
probe. Your unit may be an integral mounting option or the
remote mounting option. The integral mounting unit
consists of a single enclosure that includes the electronic
module and the sensor probe. The remote mounting unit
consists of two enclosures, one containing the electronic
module and the other containing the sensor probe.
• Be sure that there is sufficient clearance around the
mounting position to allow for the turning radius of the
switch or remote sensor enclosure as the unit is screwed
into place. Allow sufficient room above the vessel entry to
be able to insert the probe into the opening of the vessel.
• The standard size of the threaded vessel coupling is ¾ in
NPT for most probes. Other size threaded connections or
flanges are also available.
• Install and tighten threaded process connection switches
with a spanner wrench on the wrench flats of the threaded
connection.
• The information included on the enclosure label should be
visible. If necessary clean the label using a cloth soaked
with either water or isopropyl alcohol.
Tank mounting
The RS85 can be mounted for high or low level detection using
a flange or the standard ¾ in NPT connection.
Switch point and mounting position
Switch points on the sensor depend on the mounting
position. The switch point is determined by the position of
the tuning fork.
Top mounted
Switch point
Switch point
Bottom mounted
Switch Point
Side mounted
Figure 6
Figure 7
Figure 8
Figure 9
Do not rotate switch housing on process connection .
Switch performance may be affected .
NOTE
RS85 mounted via
¾ in NPT
connector