Extech Instruments EasyView EA31 Manuel utilisateur

User's Guide

EasyView Digital Light Meter

Model EA31

EA31-EU-EN-V2.1-6/12

Introduction

Congratulations on your purchase of the Extech EasyView Digital Light Meter which measures the

amount of light falling on a surface (illuminance) in Foot-candles or Lux. 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 Sensitivity

EA31-EU-EN-V2.1-6/12

Operation

Power ON or OFF

Press the button to turn power on or off.

Units of measure

Press the lux / fc button to select the unit of measure. “fc” or “lux” will appear in the display.

Light sensor

1. The light sensor is attached to the meter with a coiled cable which allows placement of the

sensor up to approximately 3 feet from the meter.

2. The light sensor is a silicon photo diode and resides under the white domed lens.

3. To protect the lens from scratches, keep the protective cap on the sensor whenever the unit is

not in use.

4. The back of the sensor has a tripod mounting hole.

Taking measurements

1. Remove the protective cap from the sensor.

2. Place the sensor in a horizontal position at the measurement 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

display.

2. Press the MX/MN button again to display the lowest reading that occurs while the function is

enabled. The “MIN” icon will appear in the display.

3. Press MX/MN again to toggle between the MAX and MIN readings.

4. To exit the MX MN mode and return to the normal real time display, press and hold the MX/MN

button (2 seconds) until the MAX and MIN icons disappear.

Data Hold

Press the HOLD button to freeze the displayed reading. The 'H' hold icon will appear on the display.

Press the HOLD button again to return to normal operation.

EA31-EU-EN-V2.1-6/12

Reference

Foot candles Lux Typical Light Levels

>10000 >107600 Sunlight

1000 to 10000 10760 to 107600 Operating Table

100 to 1000 1076 to 10760

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

EA31-EU-EN-V2.1-6/12

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 oC

Sampling rate 2.5 times per second

Photo detector Silicon photo-diode and spectral response filter

Operating conditions Temperature: 0 to 40oC (32 to 104o; Humidity: < 80% RH

Storage conditions Temperature: -10 to 50oC (14 to 140oF); 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

www.extech.com

Table des matières

Autres manuels Extech Instruments Instrument de mesure

Extech Instruments

Extech Instruments ExStik SX800 Series Manuel utilisateur

Extech Instruments

Extech Instruments DT200 Manuel utilisateur

Extech Instruments

Extech Instruments 407740 Manuel utilisateur

Extech Instruments

Extech Instruments 461920 Manuel utilisateur

Extech Instruments

Extech Instruments SDL100-NIST Manuel utilisateur

Extech Instruments

Extech Instruments GRT350 Manuel utilisateur

Extech Instruments

Extech Instruments RPM40 Manuel utilisateur

Extech Instruments

Extech Instruments VT30-E Manuel utilisateur

Extech Instruments

Extech Instruments 461893 Manuel utilisateur

Extech Instruments

Extech Instruments LT505 Manuel utilisateur

Extech Instruments

Extech Instruments PQ2071 Manuel utilisateur

Extech Instruments

Extech Instruments ExStik RE300 Manuel utilisateur

Extech Instruments

Extech Instruments RPM33-NIST Manuel utilisateur

Extech Instruments

Extech Instruments MA140 Manuel utilisateur

Extech Instruments

Extech Instruments 461920 Manuel utilisateur

Extech Instruments

Extech Instruments RF20 Manuel utilisateur

Extech Instruments

Extech Instruments 480823 Manuel utilisateur

Extech Instruments

Extech Instruments 400790A Manuel utilisateur

Extech Instruments

Extech Instruments 407412 Manuel utilisateur

Extech Instruments

Extech Instruments MA150-T Manuel utilisateur

Extech Instruments

Extech Instruments SDL100 Manuel utilisateur

Extech Instruments

Extech Instruments 461891 Manuel utilisateur

Extech Instruments

Extech Instruments EC600 Manuel utilisateur

Extech Instruments

Extech Instruments HD755-NIST Manuel utilisateur

Manuels Instrument de mesure populaires d'autres marques

Suaoki

Suaoki D40 Manuel utilisateur

Elster

Elster BK-G1.6 Manuel utilisateur

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuel

Duratool

Duratool D03128 Manuel utilisateur

Vega

Vega VEGAPULS 65 Manuel utilisateur

Tonghui

Tonghui TH2618B Manuel utilisateur

Tenmars

Tenmars TM-801 Manuel utilisateur

MSR

MSR 145 Manuel utilisateur

TPS

TPS WP-82 Manuel utilisateur

ELMETRON

ELMETRON CP-511 Manuel utilisateur

PCB Piezotronics

PCB Piezotronics 003C30 Manuel utilisateur

Tenma

Tenma 72-10465 Manuel utilisateur

Endress+Hauser

Endress+Hauser Proline Promag 50 Caractéristiques techniques

Siemens

Siemens SITRANS F Coriolis FCT030 Manuel de la liste des pièces

KLINGER

KLINGER CMF V Series Manuel utilisateur

EXFO

EXFO FTB-2 Manuel d'exploitation et d'entretien

Keysight

Keysight M8290A Manuel utilisateur

ADTEK

ADTEK MW-5 Manuel utilisateur