Promax MR-275 Manual De Usuario página 19

USER'S MANUAL MR-275
4. PHOTO TACHOMETER MEASURING
1.- Select the "Function Switch" to the "Photo RPM" position.
2.- Remove the protective laser cover
3. Place the reflecting mark over the object to measure.
4. Press the measuring button and aim the laser beam to the
reflecting mark.
5. Verify that the measuring indicator appears on the display.
6. Once the measurement is finished, load the measured values.
See section 6.
Measuring consideration :
If the measured RPM values is very low ( for example less than 50
RPM ), recommend to attach more " Reflecting Marks " average to
the object. It will get the real RPM with high resolution, precisely &
fast sampling time when divided the reading values by the no. of
the " Marks ".
NOTE: As an additional safety caution, place the laser
protective cover once the measurement is finished.
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