45-610 Displacer Type Liquid Level Switches and Proof-er
®
Switches
5
2.0
Installation
Caution:
If equipment is used in a manner not specified by manu-
facturer, protection provided by equipment may be
impaired.
2.1
Unpacking
Top mounting displacer units are shipped from the factory
with the displacer and cable assembly removed from the
head assembly and packed separately in the same container.
Caution:
If reshipping to another location, displacer assembly must
again be removed from the control to prevent damage.
Unpack the instrument carefully. Inspect all units for
damage. Report any concealed damage to carrier within
24 hours. Check the contents of the packing slip and
purchase order. Check and record the serial number for
future reference when ordering parts.
Caution:
The threaded connection link and stem protruding from
the head assembly are extremely fragile. DO NOT handle
or place control in a position so that any amount of force
is placed on the stem. Proper operation of the control
requires that the stem is not damaged or bent.
Caution:
Displacer spring and stem are fragile. DO NOT drop dis-
placers into tank. Hand feed cable into position to avoid
bending stem.
2.2
Mounting
Caution:
This instrument is intended for use in Installation Category
II
,
Pollution Degree 2.
Adjust the displacers on the displacer cable for the desired
switch actuating levels (instruction tag is attached to
cable). Screw displacer cable fitting to threaded connection
link protruding from the underside of control.
Be sure there are no tubes, rods, or other obstacles in the
tank or vessel to interfere with the operation of the dis-
placers. No guides into the tank are necessary unless liquid
turbulence is excessive, in which case a guide pipe or tube
should be at least 1 inch larger than the displacer diameter,
open at the bottom end, and with several vent holes
located above the maximum high level of the liquid.
Check the installation of pipe or tube to be certain it
is plumb.
