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Fluke 941 User Manual

Fluke 941
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1
941
Light Meter
Users Manual
English
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.
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Fluke 941 Specifications

General IconGeneral
BrandFluke
Model941
CategoryMeasuring Instruments
LanguageEnglish

Summary

Limited Warranty and Limitation of Liability

Symbols and Precautions

Warning and Precautions

Safety warnings regarding operation in hazardous environments and calibration of the light sensor.

Unpacking and Inspection

Details the expected contents of the shipping carton and what to do if items are missing or damaged.

Introduction to Light Meter

Defines the purpose of the 941 Light Meter and explains LUX and Foot-candle units of illumination.

Operation and Features

Basic Operation

Provides basic steps for turning on the meter, placing the sensor, and selecting scales for readings.

Lux and Foot-candle Scales

Explains the relationship between Lux and Foot-candle illuminance scales and their conversion factors.

Data Hold Function

Describes how to freeze the current reading on the LCD and how to disable the Data Hold function.

Auto and Manual Ranging

Explains how to use the automatic or manual ranging functions for accurate measurement readings.

MIN/MAX Value Capture

Details how to use the MIN/MAX feature to display the minimum, maximum, or actual readings.

Auto-Power Off Feature

Explains the meter's automatic power-down feature to conserve battery life and how to disable it.

Zero Adjustment

Provides instructions on how to reset the light sensor's null point for accurate zero calibration.

Specifications

Illumination Measuring Range and Accuracy

Lists the measuring ranges for Lux and Foot-candles, and the accuracy specifications for various light sources.

Cosine Angular Characteristics

Details the angle deviation characteristics of the sensor for cosine correction according to industry standards.

Maintenance and Repair

Troubleshooting and Battery Check

Guides on isolating malfunctions, checking the battery, and reviewing operating procedures for common issues.

Cleaning and Professional Repair

Advises on cleaning the meter with mild solutions and emphasizes that major repairs require authorized personnel.

Battery Replacement

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