4
4.Operation
4-1 Quick Start
A. Remove the screws of the battery cabinet with a screwdriver. Slide the battery cover away from
the Instrument and install the batteries into the case.
B. Stick the self-adhesive reflective tape on the object whose rotational speed is to be measured.
The reflective tape should be stocked as close to the outer edge of the object to be measured as
possible.
C. Hold the tachometer in your hand.
D. Press the UNIT button to change display no RPM, Press UNIT button until display changes to
RPM (Please see page 11:
The UNIT Button Function Declaration
)
E. Press the MEAS button. Point the laser spot at the reflective tape, then read the measurement
on the LCD display.
4-2 Unit Diagram
D: UNIT button
E: Measure button
F: Memory button
G: Display window
H: Sensor of auto back light
I: Battery cover
4-3 Display
a. Scan: Press the measuring button, the data
will update and “SCAN” will show.
b. Hold: Release the measuring button, the data
will freeze and “Hold” will appear.
c. Unit display: Displays measuring units.
d. Low battery display: When the battery current
is weak, will show.
e. Main display: 5 Digit LCD displays measurement readings.
f. Max/Min/Avg display: Displays minimum, maximum and
average value.
g. Data: Displays the number of data storage.
4-4 Function Descriptions
In Scan mode, the current measurement is displayed on the main display. The main display will
hold the last values until the tachometer automatically turns off.
Memory mode:
The tachometer can store and recall 10 selectable MAX measurements, 10 selectable MIN
measurements, 10 selectable AVG measurements and 10 selectable DATA measurements.
