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Summary of Contents for Fluke 941
- Page 1 Light Meter Users Manual PN 3409850 January 2009 © 2009 Fluke Corporation, All rights reserved. Printed in China. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
- Page 2 Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without interruption.
- Page 3 HOLD ➊ Light sensor ➋ Display(LCD) ➌ Lux / foot candles ➍ MAX Lock up MIN and MAX value ➎ Power Button: ON/OFF ➏ Manual range selection ➐ DATA HOLD button ➑ AUTO ranging ➒ Light sensor Zero Adjustment...
- Page 4 Fluke-941 Light Meter CONTENTs Symbols ......................... 5 Unpacking and Inspection ................... 5 Introduction ......................5 Operation ......................5 Lx / Fc ....................... 5 Data Hold ....................... 5 AUTO / MAN Ranging ..................6 MIN/MAX ......................6 Auto-Power Off ....................6 Zero ........................
- Page 5 If any of the items are damaged or missing, return the complete package to the place of purchase for an exchange. INTRODUCTION The 941 measures the visible light from fluorescent, metal halide, high- pressure sodium or incandescent sources. One LUX (Lumen) is the illumination from a one candela lamp perpendicular to a surface one meter squared at a distance of one meter.
- Page 6 AUTO / MAN Ranging Press the AUTO or MANual ranging button for useable reading. AUTO ranging is the default operation. MIN/MAX Pressing the MIN/MAX button for less than 1 second will put the meter into a mode of displaying the maximum, minimum, or actual readings. Each time the MIN/MAX button is pressed, the meter will cycle from MAX ...
- Page 7 Illumination: Measuring Range: 20, 200, 2000, 20000, 200000 Lux 20, 200, 2000, 20000 Foot candles Accuracy: ± 3% (Calibrated to standard incandescent lamp at 2854°K) ± 6% other visible light sources Angle deviation from cosine Characteristics 30° ± 2% 60° ±...
- Page 8 Turn off the meter and slide out the battery cover. Replace the battery with a NEDA type 1604 or equivalent 9V alkaline battery. Replace the cover. Remove battery when the Fluke-941 is not used for extended period. OPEN Battery Replacement...
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