76
Magtrol WB/PB Dynamometers
Chapter 6 – Calibration
C
aution
:
f
or
overload
Calibration
of
wb/pb 43, 65
and
115 s
eries
d
ynamometers
,
readings
of
150%
of
the
nominal
torque
are
only
possible
if
the
measuring
system
operates
without
saturation
.
w
ith
a
Complete
dsp-
Controlled
m
agtrol
system
(wb/pb
d
ynamometer
, dsp d
ynamometer
C
ontroller
, des p
ower
s
upply
and
tsC t
orque
/s
peed
C
onditioner
),
the
tsC
unit
must
be
ConneCted
to
the
tsC2
input
of
the
dsp
unit
(
as
the
tsC1
input
Cannot
measure
a
value
of
more
than
130%
of
the
nominal
torque
).
6.4.1
WB/PB 43 S
erieS
Figure 6–2 WB/PB 43 Overload Protection Calibration
1. Mount the calibration arms. (See
Section 6.1.1 – Calibration Arms.
)
2. Place 100% of the calibration weight on the arm on the connector side.
3. Adjust the screw
to decrease the torque slightly.
4. Place 200% of the calibration weight on the arm on the connector side.
5. Adjust the screw
so that the display indicates 150% of the nominal torque.
6. Move the 100% calibration weight onto the opposite arm.
7. Adjust the screw
to decrease the torque slightly.
8. Place 200% of the calibration weight on the arm.
9. Adjust the screw
so that the display indicates 150% of the nominal torque.
10. Remove the calibration weight and arms.