– 5 –
4.0 INSTALLING/REPLACING BATTERIES
1. Loosen the two black screws at the bottom
edge of thetachometer using a slotted
screwdriver or coin.
2. Remove the battery compartment cover
plate exposing the battery sleeve.
3. Insert the AA batteries observing the
proper battery polarity indicated on a
label inside the battery compartment
Note:
The DT-205LR, DT-207LR, DT-205LR-12 and DT-207LR-12 are
designed to automatically power off after five (5) minutes of "non-use" to
conserve battery power.
– 8 –
7.0 MEASURING SURFACE SPEED & LENGTH
1. Select the Surface Speed Wheel and carefully
place it on the shaft of the Screw-in Contact
Adapter making sure to align the pin on the
shaft with the slot on the wheel.
Warnings
:
The
Shaft Extension Accessory
should
not be used with the
Surface Speed Wheel.
2. Rotate the O
perating Mode Selector Switch
to
the desired unit of measure for surface speed or
length.
3. Position the wheel carefully on the moving
surface. Apply enough pressure to eliminate any
slip.
4 . Press and hold the white
Measure Button
located on the right side of the Tachometer.
5. The display will update approximately 1 time per second and show the
measured surface speed or length in the units selected in the
Operating
Mode Selector Switch.
6. Release the
Measure Button
prior to removing the Tachometer from the
rotating shaft. The last reading will be retained on the display.
Readings will be retained in memory for 5 minutes. This time can be
extended indefinitely by re-pressing the
Memory Switch
within each five
minute period.
Select Desired Unit Of Measure
For Surface Speed or Length
