Warner Electric FM Series Foot Mounted Load Cells AC10 Measuring System A-B-C30 - Manual (Page 38)

38 Warner Electric • 800-825-9050 P-2012-4
Description
General Information
Warner Electric Series 30 Type B Tensioncells
are force transducers especially designed to
measure and control web tension on continuous
strip processing lines. They are normally
installed in matched pairs at each end of a
measuring roll. (See Figure 1)
A Tensioncell consists of a unique combination
of two integral systems (one mechanical, the
other electrical) for converting the mechanical
force of strip tension into an electrical signal
which is directly proportional to the strip ten-
sion.
Type "B" Tensioncells are intended for NON-
ROTATING shaft installations. A self-aligning
shaft clamp assures proper alignment of the
measureing roll when the tension cells are bolt-
ed to the machine frame. Type "B" Tensioncells
are supplied in matched pairs, one to be mount-
ed at each end of the tension measuring roll.
Note that the cell marked "W2" is a mirror image
of "W1". The 'W2" cell allows for thermal expan-
sion of the shaft. (See Figure 1)
W1 W2
Machine
Frame
B30 Series Tonsioncell
Single Bolt Mounting
Internal
Bearing
Type B - Bearings in Roll - Non-Rotating Shaft
Figure 1
Damper
C-Flexure
Far Side
Mechanical Stop Load
Plate
LVDT
LVDT
Core
Figure 2
The Mechanical System
The mechanical system consists of a Patented
"C-Flexure Pivot Assembly" which incorporates
a mounting Base Block, frictionless elastic pivot
(or hinge), and Load Plate. (See Figure 2) When
a mechanical force is applied to the Load Plate,
the pivot permits its deflection toward or away
from the Base Block.