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6.1
INITIAL CALIBRATION
All Magtrol instruments are calibrated prior to shipment. There is a calibration label on each unit
as shown in the following figure.
This label tells the user when the next calibration is required, although Magtrol does recommend
that calibration be completed after the dynamometer, readout instrumentation and power supply are
set up for the first time.
6.2
CALIBRATION BEAMS AND WEIGHTS
To perform a successful dynamometer calibration, a precision weight heavy enough to apply a torque
at or close to the full scale rating is required. Magtrol offers precision weights (WT Series) and
calibration beams (CB Series) rated specifically for each Hysteresis Dynamometer.
Note:
Calibration
Beam
Assembly
CB-106
CB-100
CB-400
CB-500
CB-700
CB-800
CB-825
* The -7N Full Scale Torque values are not exactly equivalant to the dynamometer ratings, but are instead
representative of the actual torque produced by the WT Series weights.
6. Calibration
DATE:
S/N:
BUFFALO, NY
Figure 6–1 Calibration Label
The Pin Location represents the distance between the pin and
the center of the calibration beam. See Figure 6–4 Calibration
Calculation.
English
For
Full Scale
Pin
Hysteresis
Torque
Location
Dynamometer
-6N series
in
HD-106
2.50 oz·in
2.500
HD-100
11.00 oz·in
5.500
HD-400
40.0 oz·in
5.000
HD-500
120.0 oz·in
7.500
HD-510
HD-505
240 oz·in
7.500
HD-515
HD-700
440 oz·in
11.000
HD-710
HD-705
55.0 lb·in
11.000
HD-715
HD-800
125.0 lb·in
15.625
HD-810
HD-805
250 lb·in
15.625 16.0 lb WT-805 285.52 kg·cm
HD-815
HD-825
500 lb·in
20.000 25.0 lb WT-825 576.14 kg·cm
MAGTROL, INC.
CALIBRATION
DUE:
BY:
716-668-5555
Weights
Full Scale Torque
Size
Model
-7N series*
1 oz WT-106
183.5 g·cm 18.00 mN·m
2 oz WT-100
815.8 g·cm
8 oz WT-400
2.86 kg·cm
1.0 lb WT-500
8.67 kg·cm
2.0 lb WT-505 17.34 kg·cm 1700 mN·m
2.5 lb WT-700 31.61 kg·cm
5.0 lb WT-705 63.22 kg·cm
8.0 lb WT-800 142.76 kg·cm
55
Metric and SI
Pin
Weights
Location
-8N series
Size
Model
cm
9.18
20 g WT-106M
80.0 mN·m
8.16
100 g WT-100M
280 mN·m
14.28
200 g WT-400M
850 mN·m
17.34
500 g WT-500M
17.34 1.0 kg WT-505M
3.10 N·m
31.61 1.0 kg WT-700M
6.20 N·m
31.61 2.0 kg WT-705M
14.00 N·m
47.59 3.0 kg WT-800M
28.0 N·m
47.59 6.0 kg WT-805M
56.5 N·m
38.41 15.0 kg WT-825M
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