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  EA31-EU-EN-V2.1-6/12 

5

Maintenance 

Cleaning and storage 

1.  The white plastic sensor dome should be cleaned with a damp cloth when necessary. 

2.  Store the meter in an area with moderate temperature and humidity (refer to the operating and 

storage range in the specifications chart earlier in this manual). 

Battery Replacement 

When the battery voltage is low the ‘

BT

’ symbol will appear on the display. Replace the six (6) 1.5 

‘AAA’ batteries by removing the rear (center) battery compartment screw and accessing the battery 
compartment. Observe polarity when placing the batteries in the compartment. Ensure that the 
compartment cover is securely fastened when finished. 

You, as the end user, are legally bound (

Battery ordinance

) to return all used 

batteries and accumulators; 

disposal in the household garbage is prohibited!

 

You can hand over your used batteries / accumulators at collection points in your 
community or wherever batteries / accumulators are sold! 

Disposal: 

Follow the valid legal stipulations in respect of the disposal of the 

device at the end of its lifecycle 

Specifications 

Units 

Ranges and Resolution 

Accuracy 

Lux 

20.00, 200.0, 2000, 20.00kLux

Foot-candles 

20.00, 200.0, 2000, 20.00kfc 

± (3% rdg + 0.5% FS) 

±( 4% rdg + 0.5% FS, if > 10,000lux or 1,000fc) 

General Specifications 

Display 

3-1/2 digit, 2000 count LCD  

Over range indication 

LCD displays ‘OL’  

Spectral response 

CIE photopic (CIE human eye response curve), Cosine corrected 

Spectral accuracy 

CIE V

 

function (f’

1

,

6%) 

Measurement Repeatability 

±2% 

Calibration 

Calibrated to a standard incandescent lamp at color temperature 
2856ºK 

Temperature coefficient 

±0.1% per 

o

Sampling rate 

2.5 times per second  

Photo detector 

Silicon photo-diode and spectral response filter 

Operating conditions 

Temperature: 0 to 40

o

C (32 to 104

o

; Humidity: < 80% RH 

Storage conditions 

Temperature: -10 to 50

o

C (14 to 140

o

F); Humidity: < 80% RH 

Dimensions 

150 x 72 x 35mm (5.91 x 2.8 x 1.4") 

Weight 

Approx. 320g (11.3 oz) with battery 

Photo Detector Dimensions 

92 x 60 x 29mm (3.62 x 2.36 x 1.14”) 

Detector cable length 

91cm (3’) approximately 

Low battery indication 

“BT” appears on the LCD 

Power supply 

6 ‘AAA’ cells; Battery life approx 400 hours 

 

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 

Содержание EasyView EA31

Страница 1: ...User s Guide EasyView Digital Light Meter Model EA31 ...

Страница 2: ... This device measures up to 20 000 Fc and 20 000 Lux Careful use of this meter will provide years of reliable service Meter Description 1 LCD display 2 Range button 3 Power ON OFF button 4 lux fc selection button 5 Data HOLD button 6 MAX MIN button 7 Photo sensor lens cover not shown Tripod mounts on rear of sensor Note Battery compartment is located on the rear of the instrument Spectral Sensitiv...

Страница 3: ...location 3 Read the light level on the display If the light measurement is out of range an OL indication will appear on the display If the OL appears select a higher range by pressing the RANGE button MX MN Function 1 Press the MX MN button once to put the meter in MX MN mode The meter will now display the highest reading that occurs while the function is enabled The MAX icon will appear in the di...

Страница 4: ...760 Assembly fine Football stadium Emergency room Drafting table 10 to 100 107 to 1076 Overcast day Assembly general Classroom Casual reading Shipping area Stairwell Auditorium 1 to 10 10 7 to 107 ATM machine Storage room Building entrance Parking lot 0 to 1 0 to 10 7 Highway Full moon Foot candle Lux conversion 1 lux 09290 foot candles 1 foot candle 10 764 lux ...

Страница 5: ...ts lifecycle Specifications Units Ranges and Resolution Accuracy Lux 20 00 200 0 2000 20 00kLux Foot candles 20 00 200 0 2000 20 00kfc 3 rdg 0 5 FS 4 rdg 0 5 FS if 10 000lux or 1 000fc General Specifications Display 3 1 2 digit 2000 count LCD Over range indication LCD displays OL Spectral response CIE photopic CIE human eye response curve Cosine corrected Spectral accuracy CIE V function f 1 6 Mea...

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