Extech Instruments LT250W Manual de usuario

Quick Start

LT250W Light Meter

Bluetooth® Connectivity with the

ExView® Mobile App

Quick Start (en)

PREPARATION

1. Included items: LT250W, Quick Start, and batteries.

2. Download the User Manual from the Extech website.

3. Download the ExView mobile app from the App Store (iOS®) or

Google Play (Android™).

4. Install batteries in the rear compartment.

5. Long press the power button to switch the meter on (short

press to switch off).

GENERAL SAFETY

• Check for damage to the device before use. Return the unit if

damage is evident.

• Do not attempt to open the meter housing or sensor.

• CE and FCC compliant.

TAKING MEASUREMENTS

1. Long press the power button to switch the meter on.

2. Hold the meter, place it on table or desk, or mount on tripod in

the test area.

3. For best results, allow the light to fully cover the sensor dome.

4. Read the illuminance reading on the LCD. If the x10 or x100 dis-

play appears, multiply the displayed reading by 10 or 100.

5. If the measurement is out of range, OL will appear.

BLUETOOTH OPERATION

Long press the Bluetooth button to switch Bluetooth on or off.

Download the ExView mobile app onto your smart device from the

App Store or Google Play.

Instructions for app use are available on the Extech website (Ex-

View product page). Switch APO off when using Bluetooth by

pressing the power and Hbuttons until the APO symbol

switches off.

#NAS100081; r. AA/78961/78963; en-US 1

METER DESCRIPTION

1. Light sensor

2. Backlit LCD

3. Function buttons

4. Tripod mount

5. Battery compartment

FUNCTION BUTTONS

Long press to switch the meter on. Short press to switch off.

Long press to switch Bluetooth on/off.

Short press to cycle through MAX/MIN readings. MAX/MIN

memories are cleared each time meter power is cycled.

Short press to freeze/unfreeze the displayed reading.

Long press to switch the LCD backlight on/off.

Short press to toggle Lux and foot candle (Fc) units.

#NAS100081; r. AA/78961/78963; en-US 2

DISPLAY SYMBOLS

1. Bluetooth active

2. Illuminance measurement

3. MAX/MIN memory modes

4. Data Hold

5. Low battery symbol

6. Units of measure

7. x10 and x100 indicators

BASIC SPECIFICATIONS

Display type 4 digit backlit LCD

Low battery indication Replace batteries when battery symbol

appears

Operating conditions 32 to 104℉(0 to 40℃); < 80% RH

Storage conditions -4 to 140℉(-20 to 60℃); < 75% RH

Illuminance ranges Resolution Accuracy (% of reading)

0 to 9999 Lux

≧10,000 Lux

≧100,000 Lux

1 Lux

10 Lux

100 Lux

± (4% + 8 digits)

± (5% + 10 digits)

Readings above 9999 are accompanied by a x10 or x100 display indicator

Foot candle (Fc) readings are converted from Lux measurements

#NAS100081; r. AA/78961/78963; en-US 3

TWO-YEAR WARRANTY

FLIR Systems, Inc. warrants this Extech brand instrument to be free

of defects in parts and workmanship for two years from date of

shipment. View the full warranty at this link:

http://www.extech.com/support/warranties

CUSTOMER SUPPORT

Customer Support Telephone List:

https://support.flir.com/contact

Service e-mail:[email protected]

Technical Support:https://support.flir.com

#NAS100081; r. AA/78961/78963; en-US 4

#NAS100081; r. AA/78961/78963; en-US 5

last page

Publ. No.: NAS100081

Release: AA

Commit: 78961

Head: 78963

Language: en-US

Modified: 2021-08-26

Formatted: 2021-08-26

Website

http://www.flir.com

Customer support

http://support.flir.com

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 [email protected] with any questions.

Quick Start

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