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Table of Contents
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Summary of Contents for Extech Instruments 461920
- Page 1 User's Guide Model 461920 Laser Photo Tachometer...
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Page 2: Warranty
Introduction Congratulations on your purchase of Extech's Mini Laser Photo Tachometer, Model 461920. This Tachometer provides non-contact RPM and Revolution count measurements. The laser pointer beam provides accurate long distance measurements for photo tachometer measurements. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. -
Page 3: Meter Description
WARNING: Do not directly view or direct the laser pointer at an eye. Low power visible lasers do not normally present a hazard, but may present some potential for hazard if viewed directly for extended periods of time. 461920 V2.1V 5/07... -
Page 4: Meter Operation
4. To improve repeatability of low rpm measurements, apply additional squares of reflective tape. Divide the reading shown on the display by the number of pieces of reflective tape squares to calculate the actual rpm. 461920 V2.1V 5/07... -
Page 5: Specifications
45mA DC approx. Weight 5.3oz. (151g) Size 6.3x2.3x1.6" (160x58x39 mm) Range Specifications Accuracy Range Resolution (%rdg) 0.1 rpm (<1000rpm) Photo 2 to 99,999 ± (0.05% + 1d) Tachometer 1 rpm (>1000 rpm) 1 to 99,999 Counter 1 count 461920 V2.1V 5/07... -
Page 6: Battery Replacement
For the latest version of this User Guide, Software updates, and other up-to-the-minute product information, visit our website: www.extech.com Extech Instruments Corporation, 285 Bear Hill Road, Waltham, MA 02451 Copyright © 2007 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form.
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