General PCT2236B User Manual page 8

thumb. Note that this illuminates the display window. The
display should show "0", either with the letters "rpm" directly
below it or with the letters "m/min" below it to the left,
depending on the position of the function switch.
To simulate a speed measurement, keep the tachometer
cradled in your right hand and spin its shaft by "flicking" it
with the middle two fingers on your left hand while pressing
the Measurement button with your right thumb. Note how
the display tracks the force of yo ur flicks, and also how the
instrument powers off whenever the Measurement button
if released (this "dead man switch" feature extends batt ery
life considerably).
To simulate storing measurements, keep the
Measurement button dep ressed with your right thumb while
you make three simulated speed measurements, as follows:
• Flick the shaft with your left index finger once. Store the
displayed reading by pressing the MEM button w ith your
left thumb.
• Flick the shaft again to make another simulated
measurement. Store this reading by pressing the MEM
button aga in.
• Flick the shaft a third time and store the third reading as
well by pressing the MEM button.
After simulating and storing three measurements, release
the Measurement button and do not press it again until
instructed to.
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