velleman DEM201 Digital Sound Level Meter User Manual

DEM201
USER MANUAL

DEM201 Digital Sound Level Meter

Our sonometers are for indicative measurements only. They are not compliant with IEC 61672-1 electro-acoustic international standard, so they cannot be used for official measurements.

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

Safety Instructions

| Keep this device away from children and unauthorized users.
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| 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.

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

Overview

Display

Battery

1. To replace the battery, make sure the device is switched off.
2. Open the battery compartment at the back using an appropriatescrewdriver.
3. Take out the old battery and replace with a new and identical 9 V battery following the polarity markings inside the compartment.
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.

Operation

1. Press the on-off button for 1 second to switch on the meter.

2. Briefly press the on-off button to switch on the backlight.

3. Press the A/C weighing button to select the A or C weighing frequency.

4. Press the fast/slow button to select the fast (1 sample/125 ms) or slow (1 sample/1 s) weighing mode.

5. Press the range level button to select the range level.

6. Aim the microphone to the sound source at a distance of 1 to 1.5 m.
   The sound level appears on the display.

7. Briefly press the MIN/MAX button to freeze the reading on the display.
   Press again to unfreeze.

8. Hold the MIN/MAX button for 3 seconds to display the recorded maximum value, briefly press to display the recorded minimum value, hold pressed to exit the function.

9. Press the on-off button for 3 seconds to switch off the meter.

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 battery when the meter is to be stored for long periods of time.

Technical Specifications

level range|
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Lo| 30 dB ~ 80 dB
Med| 50 dB ~ 100 dB
Hi| 80 dB ~ 130 dB
Auto| 30 dB ~ 130 dB
accuracy| +/- 1.4 dB 94 dB @ 1 kHz
frequency range| 31.5 Hz to 8 kHz
frequency weighting| A, C
time weighting|
fast| 125 ms
slow| 1 s
power supply| 1x 9 V battery 6F22 (incl.)
auto power-off| 15 min.
operating temperature| -20° C ~ +60° C (< 90 % RH)
storage temperature| -20° C ~ +60° C (< 75 % RH)
dimensions| 189 x 62 x 32 mm
weight (with battery)| 178 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.

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 nondefective 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).

Made in PRC
Imported by Velleman nv
Legen Heirweg 33, 9890 Gavere, Belgium
www.velleman.eu
V. 03 – 09/10/2018
©Velleman nv

Documents / Resources

| velleman DEM201 Digital Sound Level Meter [pdf] User Manual
DEM201, DEM201 Digital Sound Level Meter, Digital Sound Level Meter, Sound Level Meter, Meter
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References

• Velleman – Wholesaler and developer of electronics

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