461700 Datasheet, PDF (6/7 Pages) Extech Instruments Corporation. – Mini Photo Tachometer

Surface Speed Measurements (461750 only)
1. Turn the meter on as described previously.
2. Touch the wheel to the moving object and read the measurement on the display. Refer
to diagram below.
3. Use the UNITS button to select the unit of measure: ft/min (feet per minute); m/min
(meters per minute); yds/min (yards per minute).
Conveyor
belt
Touch wheel to moving belt
Data Hold Feature
After the meter is turned on, the POWER-HOLD button can be pressed and released to
activate Data Hold. Data Hold automatically freezes the displayed reading. While the
reading is held, the HOLD display icon switches on. Press the POWER-HOLD button again
to exit this mode.
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461700 / 461750 Version 2.3 Mar 2004