instructions of inspecting unipol-300 - mtixtl.com
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Instructions of inspecting unipol-300
1. Check mechanical structure shown in the red circle area below to see
if there is any obvious mechanical disconnected
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2. Loosen the screws shown in the blue circle area to take off the
mother board
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3. The green will be on when the device is working
4. Use a multi-meter (set to AC) to test #1 and #2: The result on the
meter should be the same as the power input (if you connect to a
220V power, it shows around 220V; if you connect to a 110V power,
it shows around 110V )
1 2 3 4 5 6 7
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5. Then set the multi-meter to DC to test #6 an #7, the result should be
around 2.5V when the speed is minimum; 0V when the speed the
maximum.
Note: When the speed is set to minimum, the green light will be off
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6. At last please check #3 and #4: the result should be 0V when the
speed is minimum, then the result will increase if you increase the
rotate speed