PROBLEM:
The tilt switch does not indicate material
sensing.
CAUSE/SOLUTION
:
1)
Verify material is contacting the tilt switch or its exten-
sion actuator. If necessary, reposition tilt switch.
2)
Verify a sufficient angle (equal or greater than 17˚ from
vertical) is achieved when material is to be sensed. If
necessary, remount per Mechanical Installation section.
3)
Verify that the hanging mechanism (wire rope, chain,
etc.) and the electrical cable are not restricting the angu-
lar movement of the tilt switch body. If necessary, modify
hanging or electrical connection.
4)
Verify electrical connection. When in non-material
sensed mode (not tilted) the N.O. contact is closed to
COM, and the N.C. contact is open to COM. If neces-
sary, change wiring orientation.
5)
Verify that the internal steel ball deactivates the switch
when rolled off center between each set of dimples. If
necessary, adjust position of internal switch per
Maintenance section.
PROBLEM: The tilt switch always indicates material is
sensed.
CAUSE/SOLUTION:
1)
Verify material falls completely away from the tilt switch
and its extension actuator. If necessary, reposition tilt
switch to assure return to vertical status.
2)
Verify that the hanging mechanism (wire rope, chain,
etc.) and the electrical cable are not restricting the tilt
switch from returning to vertical status. If necessary,
modify hanging or electrical connection.
3)
Verify electrical connection. When in material sensed
mode (tilted) the N.O. contact is open to COM, and the
N.C. contact is closed to COM. If necessary, change
wiring orientation.
4)
Verify that the internal steel ball actuates the switch
when positioned in the center of the cage. If necessary,
adjust position of internal switch per Maintenance
section.
The tilt switches require no calibration or setup in the field. Each
tilt switch is factory set to provide indication whenever the enclo-
sure is tilted at 17˚ or greater from the vertical axis. Each unit will
actuate at the 17˚ tilt angle throughout the complete 360˚ of axial
arc. If an internal switch is replaced, see Maintenance section for
proper adjustment.
3
Figure 5
CALIBRATION
TROUBLESHOOTING
MAINTENANCE
Figure 4
Switch Replacement/Positioning (See Figure 5)
1)
Remove power from the wires connected to the tilt switch.
Remove tilt switch from installation.
2)
Open assembly by removing screws holding upper and
lower enclosure halves. Remove switch.
3)
Mount new switch using the same hardware. Position switch
so the following conditions are met:
a) Achieve distance between switch body and mounting
frame as noted in drawing below.
b) Switch should activate when steel ball is placed in the
center of the cage.
c) Switch should deactivate when steel ball rolls off center
between each set of dimples.
4)
Reattach wires as required. Reassemble upper and lower
enclosure halves. Test operation to insure switch activates/
deactivates at 17˚ angle.
DIMENSIONS ARE SHOWN IN INCHES WITH MILLIMETER EQUIVALENT IN BRACKETS
