1
1.1
UNPACKING YOUR DIAL WEIGHT DYNAMOMETER
Your Hysteresis Dynamometer was packaged in reusable, shock resistant packing material that will
protect the instrument during normal handling.
1. Make sure the carton contains all dynamometer hardware, counter weights, applicable power
supplies, User Manual CD-Rom, and any other small items.
Note:
The counter weights may be wrapped separately or installed on the
brake.
2. Inspect the contents for any evidence of damage in shipping. In the event of shipping damage,
immediately notify the carrier and Magtrol’s Customer Service Department.
Note:
Save all shipping cartons and packaging material for reuse when
returning the instrument for calibration or servicing.
1.2
TECHNICAL SPECIFICATIONS
Model
Full Scale Torque
Maximum
Speed
Power Ratings
Range One
Range Two
Range Three
5 Minutes Continuous
oz·in accuracy oz·in accuracy oz·in accuracy
rpm
W
W
HD-106-1
0.5
3.5 %
1
2 %
2
1 %
30,000
35
7
HD-400-1
2
2 %
8
2 %
16
1 %
20,000
200
55
HD-400-2
8
2 %
16
1 %
32
1 %
20,000
200
55
HD-500-1
25
2 %
50
1 % 100
1 %
15,000
400
80
HD-600-1
50
1 % 100
1 % 200
1 %
10,000
600
100
HD-700-1
100
1 % 200
1 % 400
1 %
10,000
700
150
HD-705-1
200
1 % 400
1 % 800
1 %
8,000
1400
300
1.2.1
H
ysteresis
B
rake
C
ontrol
P
ower
Hysteresis brakes require direct current for torque control. They will not respond to alternating
current above a few Hz. The nominal voltage rating for all Magtrol Hysteresis Brakes is 28 VDC.
The following is a listing of the resistance and current for each brake, by dynamometer model.
Model
Resistance
F.S. Current
Ω
A
HD-106-1
171
0.164
HD-400-1/2
80
0.350
HD-500-1
120
0.233
HD-700-1
80
0.350
HD-705-1
40
0.700
1. Introduction