Specifications

Receiving Light Source Outside (see figure 5)
Figure 5
Position the Meter on a flat place. Hold the Meter
50~200mm and at the vertical angel not greater than
30° from the Tachometer light source to the object under
test.
Set up the Meter, object under counts and outside light
source as figure 5
Press ON/OFF button
Turn the LED off, refer to page 9 point B.
Then press R/C button to select Counts mode.
The object under count passes through between the
Meter and the outside light source, the Meter accumulates
the counts and displays quantity.
Note:
Under the count mode, when the quantity is greater
than 99999 RPM, the Meter displays OL and hold the
data.
Press M/M/A button zeroing the Counts.
Press ON/OFF to re-start Counting.
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Model UT371/372: OPERATING MANUAL
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