Instrukcja obsługi Harbor Freight Tools 91194

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LUX LIGHT METER
MODEL 91194
OPERATING INSTRUCTIONS
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http//www.harborfreight.com
© ®
Copyright 2004 by Harbor Freight Tools . All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions, please call 1-800-444-3353.

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PRODUCT SPECIFICATIONS Item Description Electrical Requirements One 9-Volt Battery (Not Included) Display 3-1/2 Digit with a Maximum Display Reading of 1999 Measuring Range 1 ~ 2,000, 20,000, 50,000 Lux Repeatability ±2% Overrange Display The Highest Display Digit “1” Accuracy ±4% Reading ±0.5% Full-Scale ±4% Reading ±5 digit (10,000 -50,000 Lux) ±5% Reading ±10 digit (50,000+ Lux) Measuring Rate 2.0 times/sec. Photo Detector One Silicon Photo Diode Temperature Characteristic ±0.1% /°

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3. Use the right product for the job. There are certain applications for which this product was designed. Do not modify this product, and do not use this product for a purpose for which it was not intended. 4. Maintain labels and nameplates on this product. These carry important infor- mation. If unreadable or missing, contact Harbor Freight Tools for a replacement. 5. Do not use this product in excessive heat and humidity conditions. 6. Do not allow children to handle this product. This pr

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3. Face the Photo Detector (5) in a horizontal position toward the light source. (See Figure A, previous page.) 4. Read the number on the LCD Display (1). If the LCD Display only shows “1”, the input signal is too strong and a higher measuring range should be selected. (See Figure A.) 5. Press the Data Hold Switch (4) and “H” will illuminate on the LCD Display (1). The most recent value will continue to show on the LCD until the Power Switch (2) is pressed or the Data Hold Switch is pressed ag

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SPECTRAL SENSITIVITY CHARACTERISTICS SPECTRAL SENSITIVITY 100 -V(r) 80 LIGHT METER RELATIVE 60 SENSITIVITY 40 (%) 20 0 FIGURE C 400 500 600 700 WAVELENGTH (nm) INSPECTION, MAINTENANCE, AND CLEANING 1. Before each use, inspect the general condition of the Light Meter. Check for bro- ken, loose or missing parts; low Battery; any condition that may affect the proper operation of the product. If a problem occurs, have the problem corrected before further use. Do not use damaged equipment. 2. Do n