7
RS85
VIBR ATING FORK LEVEL SWITCH | OI/RS85-EN REV. K
2 . . .Installation
Mounting for low viscosity liquids
Mounting positions for low viscosity liquids are shown below.
If the RS85 fork is nozzle mounted with a flange and does not
extend beyond the wall of the vessel, a minimum nozzle
diameter of 2 in is required. If mounted into a threaded
nozzle, forks should protrude past the wall of the vessel.
Min. 2 in
(DN50)
Min.
1 in
(25)
Pipe mounting and empty pipe detection
The RS85 can be mounted into pipe lines of 2 in and larger
diameters.
Note: To avoid blockage of the flowing material, ensure
narrow edge of forks is parallel with pipe walls.
To maintain optimum performance in flow or no flow
applications, the liquids should have low viscosities and low
flow velocities. (less than .5 FPS)
Empty pipe detection
Mounting for high viscosity liquids
High viscosity liquids require proper mounting to ensure
accurate, repeatable service. With high viscosities, the
optimum mounting is vertical from the vessel top or
horizontal (flush mounted from the side).
Note: Horizontal mounting: Position the forks so that the
narrow edge of the tines are vertical. This ensures that the
liquid or gelatinous process can run off easily.
Vertical top mounted
Flush side mounted
Correct side
mount fork
orientation
Figure 15
Figure 16
Figure 14
* Deburr the nozzle surfaces
