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Summary of Contents for Extech Instruments 407026
- Page 1 USER MANUAL Heavy Duty Light Meter MODEL 407026...
- Page 2 Introduction Congratulations on your purchase of the Extech Heavy Duty Light Meter. This meter offers selectable lighting types, MAX-MIN-AVG recording, relative display mode, and PC interface. This professio- nal meter, with proper care, will provide years of reliable service. Description Meter Description Sensor connection PC interface port...
- Page 3 Display Description Primary display for light meas- urement and relative (%) mode readings. Function indicators. Measurement units. Secondary display for MAX-MIN- AVG readings and lighting type icons. Also used to extend the primary display digits in the high- er ranges (see Measurement Procedure section).
- Page 4 Zero Calibration Perform a zero calibration before each use, to ensure the highest accuracy. 1. Place the supplied cover over the light sensor, effectively block- ing all light to the sensor. 2. Select the 2000 lux range using the RANGE switch. 3.
- Page 5 Adjust the display contrast, if necessary, as changes in viewing an- gle can obscure the reading. The contrast adjustment is located on the right side of the meter. Range Selection For the best accuracy, first select the highest range using the RANGE switch, then switch to the lower ranges, as necessary, to locate the best range.
- Page 6 Maximum (MAX), Minimum (MIN), Average (AVG) Recording 1. Press the RECORD button to start recording. The REC icon will switch ON. 2. Press the RECALL button to view the highest reading on the lower display digits (the upper display shows the actual reading). The MAX icon will appear.
- Page 7 Do not dispose of used batteries or rechargeable batteries in household waste. Specifications General Specifications Display 3.5 digit (1999 count) LCD with contrast adjustment Sample rate 0.4 seconds per reading (approx.) Ranges 0 to 50,000 lux (3 ranges) 0 to 5000 foot-candles (3 ranges) Relative mode: 0 to 1999% Lighting types Sodium, Daylight/Tungsten, Fluorescent, and...
- Page 8 Measurement Specifications Range Switch Display Range* Accuracy 2000 0 to 1999 ± (4% + 2 digits) full scale 20,000 1800 to 19,990 50,000 18,000 to 50,000 Foot-candles 0 to 186.0 2000 167 to 1860 5000 1670 to 5000 Relative mode 0 to 1999% *Note that since the main display is limited to a reading of 1999, the right-most digit in the 20,000 lux and 5,000 foot-candle ranges ap-...
- Page 9 Appendix Typical Light Levels Foot-candle units are shown. For lux, multiply by 10.7639 Ft-cd range Location Ft-cd range Location Factory Home 2–7 Emergency stairs 10–15 Washing 7–15 Entrance, exits 15–20 Recreation 15–30 Packing work 20–30 Living room 30–75 Production line 30–50 Grooming 75–150...
- Page 10 Conversion Factors Luminance (Visible Flux Density) 1 lm/m 1 lux (lx) lm/cm phot (ph) 9.290 x 10 lm/ft 9.290 x 10 foot- candles Luminance (Visible Flux Density 1 lm/m /sr = 1 candela/m per Solid Angle) Luminous Intensity (Visible Flux 1 candela 1 lm/sr = per Solid Angle)
- Page 12 USER MANUAL last page Website http://www.flir.com Customer support http://support.flir.com Copyright © 2024, FLIR Systems, Inc. All rights reserved worldwide. Disclaimer Specifications subject to change without further notice. Models and accessories subject to regional market considerations. License procedures may apply. Products described herein may be subject to US Export Regulations. Please refer to exportquestions@flir.com with any questions.
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