Extech LT250W Bruksanvisning

Extech Multimeter LT250W

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User Manual

LT250W Light Meter

Bluetooth® Connectivity with the ExView® Mobile App

Table of contents

1 Introduction........................................................................ 1

2 Safety ................................................................................2

3 FCC Compliance .................................................................3

4 Product Description ............................................................4

4.1 Meter Description .......................................................4

4.2 Function Buttons ........................................................ 4

4.3 Display Symbols.........................................................5

5 Operation ...........................................................................6

5.1 Powering the Meter ..................................................... 6

5.2 Auto Power Off (APO).................................................. 6

5.3 Taking Measurements .................................................6

5.4 Changing Measurement Units ....................................... 7

5.5 Data Hold Function .....................................................7

5.6 LCD Backlight............................................................ 7

5.7 MAX/MIN Readings ....................................................7

5.8 Bluetooth Operation .................................................... 7

6 Maintenance .......................................................................9

6.1 General Cleaning ....................................................... 9

6.2 Battery Replacement................................................... 9

7 Specifications................................................................... 10

7.1 General Specifications............................................... 10

7.2 Measurement Specifications ....................................... 10

7.3 Environmental Specifications ...................................... 10

7.4 Connectivity Specifications ......................................... 11

8 Two-year Warranty............................................................. 12

8.1 Calibration and Repair Services ................................... 12

8.2 Contact Customer Support ......................................... 12

#NAS100076; r. AA/78957/78963; en-US ii

Introduction1

Thank you for selecting the Extech LT250W Light Meter. This meter measures

illuminance and displays it in Lux or foot candle units on the backlit LCD. Light

is captured by the built-in domed photo-cell, situated at the top of the meter.

The meter includes Bluetooth connectivity, MAX/MIN memory, selectable unit

of measure, auto power off, data hold, backlit LCD, and tripod mount.

Using the Extech ExView mobile app, you can pair your smart devices with

the meter using Bluetooth. The app and the W Series meters were developed

together for seamless integration. Download the free app from the App Store

(iOS®) or from Google Play (Android™).

This quality instrument is designed to provide years of reliable service, high

accuracy and simple operation. Please visit the Extech website for additional

information and world-class support.

#NAS100076; r. AA/78957/78963; en-US 1

Produktspecifikationer

Varumärke:	Extech
Kategori:	Multimeter
Modell:	LT250W
Strömförsörjning:	220-240V, 50Hz
Beeldscherm:	TFT
Skärm diagonal:	20 "
Upplösning:	640 x 480 Pixels
Original bildförhållande:	4:3
Betraktningsvinkel, horisontell:	170 °
Betraktningsvinkel, vertikal:	170 °
Ljudsystem:	NICAM/A2 Stereo
Typiskt kontrastförhållande:	600:1
Ljusstyrka:	430 cd/m²
Inbyggda högtalare:	Ja
Strömförbrukning (i standby):	1 W
Antal högtalare:	2
Analog signalformat:	SECAM B/G
HD typ:	Niet ondersteund
Displayteknik:	LCD
Djup (utan bas):	98 mm
Höjd (utan bas):	433 mm
Bredd (utan bas):	483 mm
Vikt (utan bas):	7000 g
Enhetsbredd (med stativ):	483 mm
Djupenhet (med stativ):	224 mm
Enhetshöjd (med stativ):	476 mm
Anslutningar:	SCART\nAV-/S-Video in\nAV-out\nHeadphone out
Teletekst:	256 pagina's
Bildstorlek (diagonal):	500 mm
Fjärrkontroll ingår:	Ja
Strömförbrukning (typiskt):	74 W
Slaaptimer:	Ja