Extech Instruments EasyView EA31 Manual de usuario

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

Tabla de contenidos

Otros manuales de Instrumento de medición de Extech Instruments

Extech Instruments

Extech Instruments SDL800 Manual de usuario

Extech Instruments

Extech Instruments ExStik RE300 Manual de usuario

Extech Instruments

Extech Instruments CG304 Manual de usuario

Extech Instruments

Extech Instruments 461830 Manual de usuario

Extech Instruments

Extech Instruments EX845 Manual de usuario

Extech Instruments

Extech Instruments 451104 Manual de usuario

Extech Instruments

Extech Instruments RF153 Manual de usuario

Extech Instruments

Extech Instruments EC600 Manual de usuario

Extech Instruments

Extech Instruments 461825 Manual de usuario

Extech Instruments

Extech Instruments MA435T-NIST Manual de usuario

Extech Instruments

Extech Instruments 407820 Manual de usuario

Extech Instruments

Extech Instruments 461891 Manual de usuario

Extech Instruments

Extech Instruments AN500 Manual de usuario

Extech Instruments

Extech Instruments 461830 Manual de usuario

Extech Instruments

Extech Instruments 250W Series Manual de usuario

Extech Instruments

Extech Instruments MS400 Manual de usuario

Extech Instruments

Extech Instruments 406800 Manual de usuario

Extech Instruments

Extech Instruments MA160 Manual de usuario

Extech Instruments

Extech Instruments PQ34-12 Manual de usuario

Extech Instruments

Extech Instruments 433201A Manual de usuario

Extech Instruments

Extech Instruments HDV7C-55-HD-1 Manual de usuario

Extech Instruments

Extech Instruments 380942 Manual de usuario

Extech Instruments

Extech Instruments MW12 Manual de usuario

Extech Instruments

Extech Instruments RH600 Manual de usuario

Manuales populares de Instrumento de medición de otras marcas

Suaoki

Suaoki D40 Manual de usuario

Elster

Elster BK-G1.6 Manual de usuario

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manual

Duratool

Duratool D03128 Manual de usuario

Vega

Vega VEGAPULS 65 Manual de usuario

Tonghui

Tonghui TH2618B Manual de usuario

Tenmars

Tenmars TM-801 Manual de usuario

MSR

MSR 145 Manual de usuario

TPS

TPS WP-82 Manual de usuario

ELMETRON

ELMETRON CP-511 Manual de usuario

PCB Piezotronics

PCB Piezotronics 003C30 Manual de usuario

Tenma

Tenma 72-10465 Manual de usuario

Endress+Hauser

Endress+Hauser Proline Promag 50 Especificaciones técnicas

Siemens

Siemens SITRANS F Coriolis FCT030 Manual de lista de piezas

KLINGER

KLINGER CMF V Series Manual de usuario

EXFO

EXFO FTB-2 Manual de operación y mantenimiento

Keysight

Keysight M8290A Manual de usuario

ADTEK

ADTEK MW-5 Manual de usuario