Extech Instruments LT300 User Manual

Extech Instruments LT300 User Manual

Digital light meter

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User Guide
Digital Light Meter
Model LT300

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Summary of Contents for Extech Instruments LT300

  • Page 1 User Guide Digital Light Meter Model LT300...
  • Page 2 Introduction Congratulations on your purchase of the Extech LT300 Digital Light Meter. The LT300 measures light level (illuminance) to 200,000 Lux (20,000 Fc). The LT300 offers a backlit display, MAX/MIN, Data Hold, Relative, Peak, and Reset features. This instrument is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.
  • Page 3 Press the HOLD button to freeze the displayed reading. The ” MANU HOLD” hold icon will appear on the display. Press the HOLD button again to return to normal operation. When the Data Hold function is enabled the analog bar graph will continue to display level changes. LT300 V2.0 6/06...
  • Page 4 Replace the 9V battery by first removing protective jacket that encases the meter. Remove the rear (center) battery compartment screw to access the battery compartment. Ensure that the compartment cover is securely fastened and that the protective jacket is properly installed before using the meter. LT300 V2.0 6/06...
  • Page 5 For the latest version of this User’s Guide, Software updates, and other up-to-the-minute product information, visit our website: www.extech.com Extech Instruments Corporation, 285 Bear Hill Rd., Waltham, MA 02451 Copyright © 2006 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.
  • Page 6 5,000-10,000 500-1000 Eye Inspection Spectral Sensitivity Wavelength (nm) _____ - - - - - Light Meter Response CIE Response more info for Extech LT300 Phone: 01235 838 555 Email: cs@airconcern.co.uk Web: www.airconcern.co.uk Air Concern Ltd, Building 173 Curie Avenue Harwell Didcot, Oxfordshire...

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