DEM104 - Thermometer VELLEMAN - Free user manual and instructions

Product type	Infrared thermometer
Brand	Velleman
Model	DEM104
Power supply	2 LR44 batteries (1.5 V)
Dimensions	88 x 19 x 23.5 mm
Weight (with batteries)	Approx. 20 g
Measurement range	-50 °C to 260 °C (-58 °F to 500 °F)
Accuracy	± 2 % ± 2 °C / 4 °F
Resolution	0.1 °C / 0.1 °F
Distance to spot ratio (D:S)	1:1
Emissivity	0.95 (fixed)
Response time	< 500 ms
Auto power off	After 15 seconds of inactivity
Display	LCD digital, switchable °C/°F
Hold function	Holds measurement after releasing button
Operating temperature	0 °C to 50 °C (32 °F to 122 °F)
Storage temperature	-20 °C to 60 °C (-4 °F to 140 °F)
Cleaning	Lint-free damp cloth, no alcohol or solvents, do not immerse
Safety	Keep out of reach of children, protect from moisture and shocks
Spare parts / repairability	No user-serviceable parts; LR44 batteries and clip available
Warranty	24 months for consumer products (Velleman conditions)

Frequently Asked Questions - DEM104 VELLEMAN

How to change the battery of the DEM104 thermometer?

Turn off the device, open the battery compartment with a screwdriver, remove the clip, replace the old batteries with two new LR44 (1.5 V) batteries respecting polarity (negative pole outward), then close the compartment.

How to switch the display between °C and °F?

Open the battery compartment, briefly press the °C/°F button to change the unit, then close the cover.

What does the hold function mean?

During measurement, keep the power button pressed. Release it to freeze the display of the measured temperature, allowing you to read the value after removing the device from the target.

How to clean and maintain the thermometer?

Clean the device regularly with a lint-free damp cloth. Never use alcohol or solvents, and never immerse the device in liquid. Store it in a dry place away from vibrations. Remove the batteries if you do not use it for a long time.

Can you measure the temperature of shiny or glass surfaces?

No, the infrared thermometer cannot correctly measure the temperature of shiny or polished metal surfaces, nor through transparent surfaces like glass, nor on objects covered with frost, dirt, or oil.

After how long does the device turn off automatically?

The thermometer turns off automatically after 15 seconds of inactivity.

What is the accuracy of the DEM104 thermometer?

The accuracy is ± 2 % of reading ± 2 °C (or ± 4 °F). The resolution is 0.1 °C / 0.1 °F.

What is the temperature measurement range?

The thermometer can measure from -50 °C to 260 °C (i.e., -58 °F to 500 °F).

Is the thermometer suitable for children?

No, keep the device out of reach of children and unauthorized persons. It contains batteries and small parts posing a risk of ingestion.

How to dispose of the thermometer at the end of its life?

Do not dispose of the device or batteries with household waste. According to regulations, return it to a recycling center or to your supplier for proper recycling. Remove the batteries and dispose of them separately.

USER MANUAL DEM104 VELLEMAN

POCKET IR THERMOMETER

IR-ZAKTHERMOMETER

THERMOMÈTRE IR DE POCHE

MINI TERMÓMETRO DE BOLSILLO

MINI IR-THERMOMETER

KIESZONKOWY TERMOMETR NA PODCZERWIEN

TERMÓMETRO DE BOLSO COM INFRAVERMELHOS

USER MANUAL 3

GEBRUIKERSHANDLEIDING 7

MODE D'EMPLOI 11

MANUAL DEL USUARIO 15

To all residents of the European Union Important environmental information about this product

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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, do not install or use it and contact your dealer.

2. Safety Instructions

	Keep this device away from children and unauthorized users.
	Keep this device away from rain, moisture, splashing and dripping liquids.
	Protect this device from shocks and abuse. Avoid brute force when operating the device.
	Protect the device against extreme heat and dust.
	There are no user-serviceable parts inside the device. Refer to an authorized dealer for service and/or spare parts.

3. General Guidelines

Refer to the Velleman® Service and Quality Warranty on the last pages of this manual.

• Familiarise yourself with the functions of the device before actually using it.
• All modifications of the device are forbidden.

DEM104

- Only use the device for its intended purpose. Using the device in an unauthorised way will void the warranty.

4. Features

• compact, lightweight and easy to use
  • display type: LCD digital
  • probe / sensor style: internal sensor
  • power source: battery-powered
  • power saving: auto-off
  • temperature readout in °C or °F
• display hold

5. Overview

Refer to the illustrations on page 2 of this manual.

1	cover
2	°C/°F button
3	battery
4	screw

5	clip
6	on-off button
7	LCD display
8	IR sensor

6. Battery

1. To replace the batteries, make sure the device is switched off.
2. Open the battery compartment using an appropriate screwdriver. Remove the clip.
3. Take out the old batteries and replace with new and identical 1.5 V LR44 battery, the negative towards the outside.
4. Close the battery compartment.

Warning: Do not puncture batteries or throw them in fire as they may explode. Do not attempt to recharge non-rechargeable batteries (alkaline). Dispose of batteries in accordance with local regulations. Keep batteries away from children.

DEM104

7. Operation

7.1 General Operation

1. Shortly press the on-off button to switch on the meter.
2. Aim the IR sensor towards the object to be measured.
3. Hold the on-off button pressed. The temperature will be displayed on the LCD display.
4. Release the on-off button to freeze the reading.
5. The meter will automatically switch off after 15 seconds of inactivity.

Remarks: The temperature

• of a shiny or polished metal surface
• through a transparent surface such as glass
- of an object covered with frost, grime, oil cannot be measured.

7.2 °C or °F Selection

1. Open the battery compartment using an appropriate screwdriver. Remove the clip.
2. Shortly press the °C/°F button to change the measurement unit.
3. Close the battery compartment.

8. Cleaning and Maintenance

• Wipe the device regularly with a moist, lint-free cloth. Do not use alcohol or solvents. DO NOT submerge the device in any liquid.
• Store the meter in a dry place away from humidity and vibrations.
• Remove the batteries when the meter is to be stored for long periods of time.

9. Technical Specifications

measurement range	-50°C to 260°C (-58°F to 500°F)
target ratio	1:1
emissivity	0.95 fixed
operating temperature	0 ~ 50°C (32 ~ 122°F)
storage temperature	-20°C to 60°C (-4°F to 140°F)
accuracy	± 2% ± 2°C / 4°F
resolution	0.1°C / 0.1°F
response time	< 500 ms

DEM104

auto switching-off	15 sec.
power supply	2 x 1.5 V LR44
dimensions	88 x 19 x 23.5 mm
weight (with battery)	± 20 g

Use this device with original accessories only. Velleman nv cannot be held responsible in the event of damage or injury resulting from (incorrect) use of this device. For more info concerning this product and the latest version of this manual, please visit our website www.velleman.eu. The information in this manual is subject to change without prior notice.

© COPYRIGHT NOTICE

The copyright to this manual is owned by Velleman nv. All worldwide rights reserved. No part of this manual may be copied, reproduced, translated or reduced to any electronic medium or otherwise without the prior written consent of the copyright holder.

GEBRUIKERSHANDLEIDING

1. Inleiding

Symbol of a trash bin crossed with diagonal lines and a blank rectangular block below (no text or labels)

Symbol of a trash bin crossed with a diagonal line, no text or numbers present

Simple line drawing of a trash bin with no text or symbols

Simple line drawing of a trash bin with no text or symbols

Symbol of a trash bin crossed with a diagonal line and a black rectangle below (no text or labels)

© INFORMACJA O PRAWACH WŁASNOŚCI

Symbol of a trash bin crossed with diagonal lines, no text or numbers present

Velleman® Service and Quality Warranty

Since its foundation in 1972, Velleman® acquired extensive experience in the electronics world and currently distributes its products in over 85 countries.

All our products fulfil strict quality requirements and legal stipulations in the EU. In order to ensure the quality, our products regularly go through an extra quality check, both by an internal quality department and by specialized external organisations. If, all precautionary measures notwithstanding, problems should occur, please make appeal to our warranty (see guarantee conditions).

General Warranty Conditions Concerning Consumer Products (for EU):

• All consumer products are subject to a 24-month warranty on production flaws and defective material as from the original date of purchase.
• Velleman® can decide to replace an article with an equivalent article, or to refund the retail value totally or partially when the complaint is valid and a free repair or replacement of the article is impossible, or if the expenses are out of proportion.

You will be delivered a replacing article or a refund at the value of 100% of the purchase price in case of a flaw occurred in the first year after the date of purchase and delivery, or a replacing article at 50% of the purchase price or a refund at the value of 50% of the retail value in case of a flaw occurred in the second year after the date of purchase and delivery.

- Not covered by warranty:

- all direct or indirect damage caused after delivery to the article (e.g. by oxidation, shocks, falls, dust, dirt, humidity...), and by the article, as well as its contents (e.g. data loss), compensation for loss of profits;

- consumable goods, parts or accessories that are subject to an aging process during normal use, such as batteries (rechargeable, non-rechargeable, built-in or replaceable), lamps, rubber parts, drive belts... (unlimited list);

- flaws resulting from fire, water damage, lightning, accident, natural disaster, etc....;

- flaws caused deliberately, negligently or resulting from improper handling, negligent

maintenance, abusive use or use contrary to the manufacturer's instructions;

• damage caused by a commercial, professional or collective use of the article (the warranty validity will be reduced to six (6) months when the article is used professionally);
• damage resulting from an inappropriate packing and shipping of the article;
• all damage caused by modification, repair or alteration performed by a third party without written permission by Velleman®.
• Articles to be repaired must be delivered to your Velleman® dealer, solidly packed (preferably in the original packaging), and be completed with the original receipt of purchase and a clear flaw description.
• Hint: In order to save on cost and time, please reread the manual and check if the flaw is caused by obvious causes prior to presenting the article for repair. Note that returning a non-defective article can also involve handling costs.
  • Repairs occurring after warranty expiration are subject to shipping costs.
• The above conditions are without prejudice to all commercial warranties.

The above enumeration is subject to modification according to the article (see article's manual).

NL