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Figure. 5
Contact Measurement
Before taking contact measurements, please first install the mechanical adapter on
the tachometer and tighten the quick release screws (Figure 6).
Figure. 6
3. Contact---RPM/Hz (Figure 7)
a. Stop the object under test from rotating.
b. Install the shaft contact (cone/internal cone) on the shaft of the mechanical adapter.
c. Turn on the tachometer. Short press the MODE button to select
d. Short press the UNIT button to select RPM or Hz.
e. Make the shaft contact closely contact with the object to be measured.
f. Long press
to start measuring.
Note: The lock measurement mode can also be used. For details, please see No.2
and No.5 in VII. Buttons.
g. Start the object under test. The trigger symbol will flash and the measured value
will be displayed on the tachometer screen.
Figure. 7
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4. Contact---Surface Velocity/Length Measurement (Figure 8)
a.
Stop the object under test from rotating or moving.
b.
Install the contact wheel (0.1m/6in) on the shaft of the mechanical adapter.
c.
Turn on the tachometer. Short press the MODE button to select 0.1m or 0.6in
according to the contact wheel used.
d.
Short press the UNIT button to select the surface velocity unit (m/min, in/min, ft/
min) or length unit (m, in, ft).
e.
Long press
to start measuring.
. N ote: The lock measurement mode can also be used. For details, please see No.2
and No.5 in VII. Buttons.
f.
Make the contact wheel closely contact with the object to be measured.
g.
Start the object under test. The measured value will be displayed on the tachometer
screen.
Note: The trigger symbol will flash when taking surface velocity measurements and
will not when taking length measurements.
Note:
To ensure the measurement accuracy, it is necessary to keep the product in a motionless
and stable state.
IX. Specifications
1. General
LCD: 5 digit display, maximum display 99999;
Overload display: Display "OL";
Low battery indicator: Replace the batteries when the low battery indicator
When the battery voltage is lower than 3.5V, the low battery indicator is displayed
on the screen;
Refresh rate: 1s (60 RPM above) ~60s (depending on the rotational velocity);
Sensor type: Photodiode and Hall sensor;
Figure. 8
shows.
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