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461750-en-US_ V2.5 11/21
Safety Precautions
The 461750 incorporates a finger guard for protection. However, care should be taken when
measuring surface speed to avoid injury.
1. Hold the meter firmly when touching the wheel or attachment to a moving object
2. Keep fingers behind the finger guard while taking measurements
3. Keep your eyes and attention on the measurement activity at all times
4. Do not attempt to record measurements while holding the meter to the moving object (use the
Data Hold feature to freeze the reading on the LCD; refer to the Data Hold section of this
manual).
Meter Power
Power ON / OFF
1. Press the triangular POWER HOLD button to turn the device ON. Alternatively, press the button
at the bottom of the meter (just under the LCD) which doubles as a power on/off button. Two
buttons are provided for easy reach at any holding angle.
2. Press and hold the triangular POWER HOLD button (or the alternate button) for approx. 5
seconds to turn the device OFF.
Auto Power OFF
1. The meter turns off AUTOMATICALLY after 20 minutes.
2. For 461750 only: To disable this feature, turn the meter off. Then press and hold the POWER
and UNITS buttons until the meter turns on. Rel
ease the POWER button first and the ‘n’ display
icon will appear. This indicates that the feature is disabled.
Never dispose of used batteries or rechargeable batteries in household waste.
As consumers, users are legally required to take used batteries to appropriate
collection sites, the retail store where the batteries were purchased, or wherever
batteries are sold.
Disposal:
Do not dispose of this instrument in household waste. The user is obligated to
take end-of-life devices to a designated collection point for the disposal of electrical and
electronic equipment.
