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Summary of Contents for Extech Instruments LT10
- Page 1 USER GUIDE Pocket Light Meter Model LT10 ShopExtech 1.888.610.7664 Shop for Extech products at: .com...
- Page 2 Introduction Thank you for selecting the Extech Instruments Model LT10 Pocket Light Meter. The LT10 measures and displays light intensity in foot candle and Lux units using a precision photo‐diode sensor. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide. The Extech Instruments brand, a wholly owned subsidiary of FLIR Systems, Inc., is ISO‐9001 certified. Safety Use CAUTION when operating this device. The light sensor is sensitive and should be handled with great care. Meter Description 1. Photo detector (Light Sensor): Sensor contains a long life silicon photo diode 2. MAX‐LUX/fc function button: Press button momentarily to view the maximum (MAX) reading. Press the button momentarily again to release the MAX display and return to the normal ...
- Page 3 4. If the x10 or x100 indicator appears, multiply the displayed value by the corresponding multiplier to obtain the correct measurement value. Max Hold Momentarily press the MAX‐LUX/fc button to view the highest reading (MAX) encountered since the meter was last switched ON. Press the button again to return to the normal operating mode. To reset the MAX reading, switch the meter OFF and then ON again. LCD Backlight The meter automatically controls the LCD backlighting (ON and OFF) to match the available ambient lighting. 3 LT10‐en‐GB_v1.1 4/15 ShopExtech 1.888.610.7664 Shop for Extech products at: .com...
- Page 4 When the battery power begins to fail, the low battery symbol will appear on the LCD. Replace the 9V battery by following these steps. 1. Open the rear battery compartment to access the battery 2. Replace the 9V battery, carefully securing the battery in the compartment 3. Securely fasten the compartment cover 4. Ensure that the compartment cover is securely fastened before using the meter All EU users are legally bound by the Battery Ordinance to return all used batteries to community collection points or wherever batteries / accumulators are sold. Disposal in household trash or refuse is prohibited. Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle Battery Safety Reminders Please dispose of batteries responsibly; always observe local, state, and federal regulations with regard to battery disposal. Never dispose of batteries in a fire. Batteries may explode or leak. Never mix battery types or old and new batteries. Always install new batteries of the same type. 4 LT10‐en‐GB_v1.1 4/15 ShopExtech 1.888.610.7664 Shop for Extech products at: .com...
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Page 5: Specifications
Operating conditions Temperature: 0 to 40 C (32 to 104 F); Humidity: < 80% RH Storage conditions Temperature: ‐10 to 60 C (14 to 140 F); Humidity: < 80% RH Dimensions 157 (H) x 54 (W) x 34 (D) mm (6.2 x 2.1 x 1.3 ") Weight 170 g (6 oz.) Electrical Specifications Ranges and Resolution Accuracy LUX ± (5% reading + 10 digits (<10000 LUX/fc) ± (10% reading + 10 digits (>10000 LUX/fc) 200.0, 2000, 20000, 40000 Note that readings over 1999 will show the x10 or x100 multiplier. Foot candles (Fc) In these cases, multiply the displayed value by the multiplier to 20.0, 200.0, 2000, 4000 obtain the correct reading. Copyright © 2013‐2015 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form www.extech.com 5 LT10‐en‐GB_v1.1 4/15 ShopExtech 1.888.610.7664 Shop for Extech products at: .com... - Page 6 Show Window, Packing Table 750-1,500 75-150 Operating Room 1,500-3,000 150-300 Storefront, Show Window 5,000-10,000 500-1000 Eye Inspection Spectral Sensitivity Wavelength (nm) _____ - - - - - Light Meter Response CIE Response 6 LT10‐en‐GB_v1.1 4/15 ShopExtech 1.888.610.7664 Shop for Extech products at: .com...
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