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3. Measurement preparation
3.1 Non-contact measurement
Cut and adhesive tap provide into approx 12mm (0.5") squares and apply one square to each
rotation shaft.
NOTE:
The non-reflective area must always be greater than the reflective area.
a.
If the shaft is normally reflective, it must be covered with black tape or black paint before
b.
attaching reflective tape
Shaft surface must be clean and smooth before applying reflective tape.
c.
3.2 Low RPM measurement
As it is easy to get high resolution and fast sampling time. If measuring the very low RPM
values, suggest user to attach more "REFLECTIVE MARKS" averagely. Then divide the reading
shown by the number of "REFLECTIVE MARKS" averagely. Then divide the reading shown by
the number of "REFLECTIVE MARKS" to get the real RPM.
4. Additional comments
To avoid injuries to animal or human eyes, Please do not point the laser beam in eyes or look directly
into beam. If the instrument is not to be used for any extended period, Please remove battery.
NOTE:
•
If the battery current is weak ,you will view the "BAT" on the LCD when you Press
"MEM" botton to measure.
•
Be careful not to allow any liquids or moisture to get inside the tachometer.
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