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Micro Dyne
-Specifications
 
 
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Micro Dyne System Specifications

 
Dynamometer
The Micro Dyne offers two different torque configurations in one unit. Depending on the motor’s maximum torque rating, the user can easily switch between the 2.0 mN·m and 4.0 mN·m torque settings via the dynamometer’s rear access panel. The ratings are the same for either configuration.
Maximum
Torque
Nominal
Input Inertia
Maximum Kinetic Power Maximum
Speed
Accuracy
5 minute continuous*
mN·m kg·cm² W W rpm Torque Speed
4.0 or 2.0 5.43 × 10-4 4 4 100,000 < 1 % of
full scale
< 0.02% of
reading
*  NOTE: Operating at the continuous power rating for periods of up to 4 hours is acceptable.  However, operating for extended periods at high temperatures will result in premature component and bearing failure. Limiting the length of the cycle and the component temperatures will guard against premature failure. Where continuous duty is desired for longer time intervals, component temperatures should be maintained less than 100°C; monitoring the outside brake surface temperature is a sufficient reference.
Power Absorption Curve
Based on the maximum kinetic power ratings, the curve below represents the maximum power (heat) that the dynamometer can dissipate over time. The area under the curve equals the maximum torque/speed combinations for both a motor test of less than 5 minutes (intermittent duty) and a continuous-duty motor test.
Micro Dyne Curve
 
 
Electronic Unit Motor Fixture
GENERAL ELECTRICAL CHARACTERISTICS
Fuse (5 × 20 mm) IEC   315 mA   250 V   T
Power Requirements 14 VA
Voltage Requirements 85 – 264 VAC  60/50 Hz
POWER MEASUREMENT (DC)
Current Input (isolated) ±5 A
Voltage Input (isolated) ±30 V
Accuracy Up to 0.02%
MOTOR ACCOMMODATION
Motor Diameter 5 mm – 30 mm
Motor Length 5 mm – 50 mm
Motor Shaft Diameter 0.75 mm – 3 mm
Maximum Load 100 g
 
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