Related Manuals for Extech Instruments 401025
Summary of Contents for Extech Instruments 401025
- Page 1 USER MANUAL Model 401025 Digital Light Meter Additional User Manual Translations available at www.extech.com...
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Page 2: Meter Description
(www.extech.com) to check for the latest version of this User Guide, Product Updates, and Support. Meter Description LCD Display Data Hold Switch Power Off/Range Switch Analog Output Terminal Battery Compartment (rear) LUX/Fc Switch & Response Switch Light Sensor Zero adjust 401025-en-GB_v2.6 6/17... -
Page 3: Operation
Fc & Lux Direct reading 50,000 5,000 5000 Reading x10 20,000 Reading x10 50,000 Reading x100 Example: If a measurement on the 5000 Fc range displays 350 the actual measured value is: 350 x 10 = 3500 Fc. 401025-en-GB_v2.6 6/17... -
Page 4: Analog Output
Lighting Type Correction Factors The 401025 light meter is calibrated under a precise Standard tungsten light source of 2856 K. If the meter is to be used under a different type of light the correction factor of from the table below should be applied to the readings obtained. -
Page 5: Replacing The Battery
220 g (0.52 lbs.) Dimensions Main instrument: 163 x 70 x 30 mm (6.4 x 2.8 x 1.2”) Sensor Probe: 85 x 55 x 12 mm (3.2 x 2.2 x 0.5”) Optional Accessories Vinyl pouch carrying case (Part Number 409996) 401025-en-GB_v2.6 6/17... - Page 6 In-range Display Resolution Accuracy (FS) 200 Fc 0-199.9 Fc 0.1 Fc ± (5% + 2digits) 2,000 Fc 200-1,999 Fc 1 Fc ± (5% + 2digits) 5,000 Fc 2,000-5,000 Fc 10 Fc ± (5% + 2digits) Frequency Spectrum Wavelength (nm) 401025-en-GB_v2.6 6/17...
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Page 7: Appendix A - Typical Light Levels
Luminous Flux ( Visible Flux) 1 lumen (lm) = 1.464 x 10 -3 watts @ 555 nm Copyright © 2013-2017 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form ISO-9001 Certified www.extech.com 401025-en-GB_v2.6 6/17...
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