MRC DT-2236 - Photo Tachometer Measuring Procedure; Contact Tachometer Measuring Procedure; RPM Measurement

4. PHOTO TACHOMETER MEASURING
PROCEDURE
A. Slide the FUNCTION SWITCH (3-7, Fig.1) to "RPM
(PHOTO)" position.
B. Affix a reflective mark (tape) to the object being measured.
Press the MEASURE BUTTON (3-5 Fig. 1) and align
the visible light beam with the reflective mark (3-1, Fig. 1)
Ensure that the MONITOR INDICATOR(3-3, Fig. 1)
lights when the target passes through the light beam.
Release the MEASURE BUTTON (3-5 Fig.1) when
the reading stabilizes(about 2 seconds),
In order to obtain greater accuracy for
measurement of less than 50 RPM, use 2 or 3
pieces of reflective tape and then divide the
reading with the number of pieces used to
calculate the final figure.
5. CONTACT TACHOMETER MEASURING
PROCEDURE
5-1 RPM Measurement
A. Slide the FUNCTION SWITCH (3-7, Fig.1) to "RPM
(CONTACT)" position.
B. Press the MEASURE BUTTON (3-5, Fig. 1) and lightly
pressing the rotating devise (3-8, Fig. 1). Release The
MEASURE BUTTON (3-5 Fig.1) When the reading
stabilizes (approx. 2 seconds).
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