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Summary of Contents for Extech Instruments 401025
- Page 1 User's Manual Model 401025 Digital Light Meter...
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Page 2: Meter Description
Direct reading 2000 Fc & Lux Direct reading 5000 Reading x10 20,000 Reading x10 50,000 Reading x100 Example: If a measurement on the 5000 Fc range displays 350, then the actual measured value is; 350 X 10 = 3500 Fc. 401025-EU-EN-V2.2-2/12... -
Page 3: 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 4: Specifications
Range In-range Display Resolution Accuracy 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-EU-EN-V2.2-2/12... -
Page 5: Appendix A: Typical Light Levels
Luminous Flux ( Visible Flux) 1 lumen (lm) = 1.464 x 10 -3 watts @ 555 nm Copyright © 2012 Extech Instruments Corporation (a FLIR company) All rights reserved including the right of reproduction in whole or in part in any form. www.extech.com...