◄
SPECIFICATIONS
Range: 10 to 99,999 RPM
Resolution: 0.1 below 1,000 RPM
1 above 1,000 RPM
Accuracy: ±1 RPM or 0.05%
Sampling Time: 1 second (over 60 RPM)
Time Base: Quartz crystal
Measuring
Distance*: 2 to 78 inches (50-2000 mm)
(*Measurement distance will vary depending on ambient
light, environmental conditions and the size of the
reecting surface.)
Laser Output: 1mW
Laser Wavelength: 600-700 nm
LASER TARGETING
Laser targeting is always active when the
Measurement button is being pressed. Each
time the Measurement button is pressed and
held, the laser beam will be emitted.
CAUTION: Class II Laser Product. Do not
stare into the laser beam.
OPERATION
1. Cut a strip of the reective tape.
2. Stop the rotation of the object to be tested.
3. Make certain that the surface of the
rotating object is smooth and clean so that
the reective tape will adhere properly and
place the reective tape on the object. The
reective tape may be placed on either the
end of the rotating object or circumference
(surface) of the rotating object.
Measurement Notes–
The non-reective area of the object must be
greater than the reective tape surface. If
the object to be tested is normally reective,
it must be covered with black tape or black
paint before attaching the reective tape.
Use particular care when measuring the
rotation of the at end of a shaft with a
relatively small diameter. Completely cover
the at end with non-reective black tape.
Place the reective strip on top of the black
tape as close to the edge as possible.
If the rotation being measured is less than
50 RPM, increase the accuracy of the
measurement by applying additional reective
tape on the rotating object. Place the
additional reective tape approximately 180
degrees from each other (on opposite sides
of each other). To determine the actual RPM
of the rotating object, divide the displayed
RPM reading by the number of reective tape
pieces.
4. Allow the object to rotate. Press and hold
the Measurement button (located on the
right side of the unit) and point the laser
beam at the reective tape.
5. Verify proper alignment by observing the
location of the laser and by checking the
display. When properly aligned, each time
the reective tape passes through the laser
(•)
(
beam (
)
) will ash in the top right corner
of the display.
6. Wait 2 to 10 seconds for the reading to
stabilize before recording the results.
7. Release the Measurement button.
MEMORY RECALL
The memory feature allows the last, highest,
and lowest readings to be recalled. Readings
are normally retained in memory for several
minutes.
Upon completion of measurement–
1. Press and hold the MEMORY button to
display the last reading recorded prior to
releasing the Measurement button.
The display will alternate displaying the
RPM value and LA (last).
2. Release the MEMORY button.
3. Press the MEMORY button a second time to
display the highest reading recorded. The
display will alternate displaying the RPM
value and UP (highest).
4. Release the MEMORY button.
5. Press the MEMORY button a third time to
display the lowest reading recorded. The
display will alternate displaying the RPM
value and dn (lowest).
ALL OPERATIONAL DIFFICULTIES
If this tachometer does not function properly
for any reason, replace the batteries with
new high quality batteries (see Battery
Replacement section). Low battery power
can occasionally cause any number of
“apparent” operational difculties. Replacing
the batteries with new fresh batteries will
solve most difculties.
BATTERY REPLACEMENT
Erratic readings, faint readings, no display, or
LO appearing on the display are all indications
that the batteries must be replaced. Open
the battery compartment by sliding the battery
cover in the direction indicated by the arrow.
Remove the exhausted batteries and replace
them with four (4) new AA alkaline batteries.
Make certain to install the new batteries in the
directions indicated in the battery compartment
(improper battery placement may cause
damage to the electronics). Replace the
battery cover.
5 Commonwealth Ave
Woburn, MA 01801
TestEquipmentDepot.com
TRACEABLE
LASER/PHOTO
TACHOMETER
INSTRUCTIONS
®
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