Velleman DVM77N Manuale utente

DVM77N

POCKET IR THERMOMETER

IR-ZAKTHERMOMETER

THERMOMÈTRE DE POCHE À IR

TERMÓMETRO IR DE BOLSILLO

INFRAROT-THERMOMETER

TERMOMETRO AD INFRAROSSI

DVM77N VELLEMAN

DVM77N – POCKET IR THERMOMETER

1. Introduction

To all residents of the European Union

Important environmental information about this product

This symbol on the device or the package indicates that disposal of the device after its lifecycle could harm the environment.

Do not dispose of the unit (or batteries) as unsorted municipal waste; it should be taken to a specialized company for recycling.

This device should be returned to your distributor or to a local recycling service.

Respect the local environmental rules.

If in doubt, contact your local waste disposal authorities.

Thank you for choosing Velleman! Please read the manual thoroughly before bringing this device into service. If the device was damaged in transit,

don't install or use it and contact your dealer.

The DVM77N is non-contact thermometer with data-hold function, backlight and auto power off.

2. Safety Instructions

•Damage caused by disregard of certain guidelines in this manual is not covered by the warranty and the dealer will not accept

responsibility for any ensuing defects or problems.

•Do not switch the device on immediately after it has been exposed to changes in temperature. Protect the device against damage by

leaving it switched off until it has reached room temperature.

•Avoid exposing the DVM77N to electromagnetic fields, dust and extreme temperatures.

CAUTION

–

Laser Radiation

–

Do Not Stare Into Beam

–

Class 2 Lase

Wavelen

th: 650-685nm

–

Max. Out

ut Power: < 1mW

–

EN60825

–

1:1994 + A2:2001 + A1:2002

DVM77N VELLEMAN

3. Description

1. IR sensor

2. LCD display

3. backlight button

4. ambient temperature measurement

button

5. wrist band

6. laser targeting aperture

7. SCAN button

8. °C/°F selection switch

9. battery cover

4. LCD Display

1. measurement indication

2. low power indication

3. ambient temperature measurement indication

4. measurement value

5. emissivity

6. backlight indication

7. data-hold indication

8. °C temperature measuring unit

9. °F temperature measuring unit

DVM77N VELLEMAN

5. Technical Specifications

Measurement Range -20°C ~ 270°C (-4°F ~ 518°F)

Accuracy +/- (2% of rdg + 3°C/6°F)

Ambient Temperature Measurement Range 0°C ~ 50°C (32°F ~ 122°F)

Resolution 1°C/1°F

Emissivity 0.95

Distance-to-Spot Ratio 6:1

Overrange Indication “OL” or “-OL”

Auto Power-Off 20s

Power Supply 2 x AAA battery (order code LR03C, incl.)

Dimensions 94 x 59 x 28mm

Weight 75g

6. Measurement Principle

Non-contact thermometers detect the infrared ray of an object, focus the infrared energy of the object onto a sensor through a lens, and

transfer the surface temperature into an electric signal. A microcomputer calculates and displays the measurement temperature on the LCD.

The laser is only used to aim the thermometer.

7. Operation

•How to Measure an Object’s Temperature

Point the infrared sensor towards the object and press the SCAN button. The thermometer emits a laser beam. Read the measured

temperature value from the LCD display. Release the SCAN button. The thermometer will automatically power off after 20 seconds. Refer to

“8. D:S Ratio” for accurate results.

DVM77N VELLEMAN

•How to Measure the Ambient Temperature

Press the SCAN button. Press the Tamb button to select the ambient temperature measurement mode. Press the SCAN button to measure.

Read the measured temperature value from the LCD display. Release the SCAN button. The thermometer will automatically power off after

20 seconds. To measure again, press the Tamb button again and restart the ambient temperature measurement procedure.

NOTE: The measurement accuracy will be affected when measuring the temperature of reflecting objects. Apply some black tape to the

object and wait for the tape to adopt the object’s surface temperature before measuring.

•How to Select the Measuring Unit

Remove the batteries and set the measuring unit switch to the desired unit.

8. D:S Ratio

The thermometer has a visual angle and a visual spot size. Make sure the target is larger than the unit’s visual spot size. The smaller the

target, the closer you should be to it. The relationship between distance and spot size is 6:1.

Units in mm, D = distance, S = spot size

DVM77N VELLEMAN

9. Battery Replacement

Change the batteries whenever the symbol appears on the display. Remove the battery cover and replace the batteries with new ones.

Use this device with original accessories only. Velleman nv cannot be held responsible in the event of damage or injury resulted

from (incorrect) use of this device.

For more info concerning this product, please visit our website www.velleman.eu.

The information in this manual is subject to change without prior notice.

DVM77N – IR-ZAKTHERMOMETER

1. Inleiding

Aan alle ingezetenen van de Europese Unie

Belangrijke milieu-informatie betreffende dit product

Dit symbool op het toestel of de verpakking geeft aan dat, als het na zijn levenscyclus wordt weggeworpen, dit toestel schade kan

toebrengen aan het milieu.

Gooi dit toestel (en eventuele batterijen) niet bij het gewone huishoudelijke afval; het moet bij een gespecialiseerd bedrijf

terechtkomen voor recyclage.

U moet dit toestel naar uw verdeler of naar een lokaal recyclagepunt brengen.

Respecteer de plaatselijke milieuwetgeving.

Hebt u vragen, contacteer dan de plaatselijke autoriteiten inzake verwijdering.

Dank u voor uw aankoop! Lees deze handleiding grondig voor u het toestel in gebruik neemt. Werd het toestel beschadigd tijdens het

transport, installeer het dan niet en raadpleeg uw dealer.

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