User Manual

Motor & Phase Rotation Indicator
Using the Motor & Phase Rotation Indicator
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See Table 2 for the minimum motor diameter and number of pole pair to obtain a reliable
test result.
Table 2. Reliable Motor Test Requirements
Rotary Number of Rotary Field (1/min) at
Frequency (Hz)
Angle Between
Poles
Min. ∅ of
Motorcase
Number
of Pole
Pair
16 2/3 50 60 ° cm
1 1000 3000 3600 60 5.3
2 500 1500 1800 30 10.7
3 333 1000 1200 20 16.0
4 250 750 900 15 21.4
5 200 600 720 12 26.7
6 167 500 600 10 32.1
8 125 375 450 7.5 42.8
10 100 300 360 6 53.5
12 83 250 300 5 64.2
16 62 188 225 3.75 85.6