Velleman DEM702 Digital Laser Distance Meter User Manual

Velleman DEM702 Digital Laser Distance Meter

FAQs

Q: Can I use alkaline batteries with the device?

A: Yes, the device is compatible with alkaline AA 1.5V batteries, but only use them when not connected to the USB-C port.

Q: What should I do if there is a problem with the product?

A: In case of any issues, please contact your local authorized dealer for assistance and service.

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

Scope of application Specified scope of application

• Distance measurement
• Area and volume measurement
• Indirect measurement
• Addition/Subtraction Measurement

Caution:

When measuring or positioning a dynamic target (such as: crane, construction machinery or platform), incorrect measurement results may be caused by unexpected conditions. Preventive measures: Only use your instrument for measuring instruments, rather than the controlling instrument. Your system must be set: in error measurement, power failure or a sudden situation, still can take safety measures such as safety limit switch, without causing any damage.
Warning :
Disused battery can’t be dealt with living garbage. Please send waste batteries in accordance with the national or local regulations for recycling. This product can not be together with household garbage recycling.

Please recycle the product correctly. Please recycle the product according to the national or local regulations. Avoid irrelevant personnel in contact with the product. Technical support: also can consult your local dealer.

Warning:
Only use the USB-C port with rechargeable Li-Ion AA 3.7V (type 14500) batteries in the device. The device is also compatible with alkaline AA 1.5V batteries. Do not connect the USB-C port when Alkaline batteries are installed. Do not recharge alkaline batteries! Electromagnetic compatibility (EMC) “Electromagnetic compatibility” is defined as follows: work steadily under the environment of electromagnetic radiation and electrostatic charge, and no other equipment caused by electromagnetic interference.
Warning:
Already meet relevant regulations and standards. However the electromagnetic radiation may interfere with other instruments.
Caution:
Don’t try to repair the product yourself. When there is a problem with the product, please contact your local agent.

A visible laser from the front of the instrument. This product belongs to secondary laser products, according to the following criteria: 1 ec60825-1:2014 “laser radiation safety products” secondary laser products: Don’t look straight into the laser beam, in the case of unnecessary don’t aim for others. Eyes instinctively turn by visual or blink action to protect the eyes.
Warning:
Looking straight into the laser beam through the optical lens (such as the eyepiece, telescope, etc.) will do harm to the eyes. prevention measures: Don’t look straight into the laser beam through lenses.
Caution:
With your eyes looking straight into the laser beam will do harm to the eyes. Preventive measures: Don’t look straight into a laser beam. Pay attention to make the laser beam on the eyes or below the shot. (especially in the instrument fixed under the condition of mechanical equipment quality).

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 unauthorized way will void the warranty.

Overview

1| Measurement unit / Measure top or bottom| | 4| Delete measurement data / Power off
---|---|---|---|---
2| Measuring button| | 5| Addition/Subtraction
---|---|---|---|---
3| Measurement mode| |

Battery

The Install/replace the battery

1. Open the fixed damper at the end of the instrument.
2. Install the battery correctly according to the polarity.
3. Close cell lifted the lid. When the display screen shows a sign of battery, replace the battery in time.
   • Please use alkaline batteries.
   • When the instrument is not used for a long time, please take out the battery, in order to avoid corrosion of the battery.

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.

 Menu features

Set the distance measurement unit.
Per long time press, this button can switch on the demand of measuring unit, the selection of the following units, m (*), ft (ft), in (inches), ft + / in (ft – in – 1/16).
Buzzer

Long press this button, switch to activate the beep.

Continuous laser

• Click this button to open this function, until the icon continues to display in the screen. Click the button again to measure. Long press the button, shut down the instrument, and continuous laser. In continuous laser mode, the instrument will automatically shut down the laser after 30 seconds.

Operation

Startup and shutdown

• Press the key twice to initiate the instrument until the screen illuminates.
• A long press this button to turn off the instrument, in the absence of any operating conditions, the instrument automatically shuts down after 3 minutes.

Delete data

• Click this button the last measured data will be deleted. In instrument measurement records, each set of measurements can be deleted step by step when click this button.

Setting the measurement reference edge

• The default reference edge setting of the instrument is the trailing edge. When the screen displays icon.
• Press and set the measurement reference edge to the leading edge. The screen will display, press a key again, and return the setting of the trailing edge as the base edge.

Electronic level

• The product comes with an electronic horizontal function, and the angle value of the instrument will change with the swing of the instrument in standby mode. The angle range is 0-360 degrees.

Measurement

A single distance measurement

• start laser. Press the button again, and trigger measurements. Measurement results are displayed immediately on the screen.
  Maximum/minimum distance measurement
  This feature enables users to set out from a measurement point, and measure the maximum or minimum distance. Such as: Measuring the spacing, diagonal distance measuring room (the maximum measured value) or horizontal distance (minimum measured value) or maximum differential value of the minimum value.

• hold the button until you hear beep. By sweeping a laser large area around the measurement target (such as a corner).

• click this button, stop continuous measurement. The corresponding maximum or minimum measured values will be displayed on screen, and the last measured values as shown in the screen.

Function

Addition/Subtraction Distance measurement

• Short press, the previous measurement plus the next measurement. Once again a short press, the previous measurement minus the next measurement.
  The whole process is repeated as needed, and the measurement result will be displayed in the main display screen, while the previous measurement result will be displayed in the second line.

• the last step will be restored. This function can also be applied to area and volume.

Surface

• Press the key once. An icon will be displayed on the screen.
• Click this button for the first length (Depth).
• Click this button again for the second length (Width).
  Measurement results will be displayed on the main screen.

Volume

• Press the key twice in succession, Icon will be displayed on a screen
• click this button for the first length measurement (Depth).
• Click this button again for the second length (Width). Measurement results will be displayed on the main screen.
• click this button again for the third length measurement (Height). The volume will be displayed on the main display.

Storage

• Press the key five times in succession, and enter the measurement record. The press can inquire about history.

Indirect measurement

• This instrument can calculate distance automatically by using Pythagorean law. This feature is especially designed for measuring the place which is not easy to reach.
   Please comply strictly with the following:

• All measuring points must be within the same horizontal or vertical plane. In order to achieve the best effect of measurement, it is recommended that the instrument be fixed in one spot, from the point of rotation measurement (such as: the instrument on a wall). Make sure that the first measurement and the two sides to be measured are vertical. Measure the Maximum/minimum distance as “Maximum/minimum distance measurement”.

• Indirect measurement – by an auxiliary measure to determine a distance such as: Measuring the height of a building. It is recommended to use a tripod-aided measurement. Three consecutive presses and then the icon is shown on the display. At this time the laser is on.

• aim at the top of the spot (1) to measure, at the same time, (1) and the vertical distance between the horizontal plane (h) will

Indirectly – through two auxiliary measurements to determine the distance

• Press four times, an icon will be displayed on the screen and the laser is on at the same time.If the horizontal distance is measured, it will be fixed together and the distance can be confirmed by pointing the light point to points (1) and point (2).
• Press this button to the hypotenuse (1) to measure; Then the measurement data (1) will be displayed on the LCD screen.
• Press this button again to the hypotenuse (2) to measure; At this point the vertical distance (h) between (1) and (2) will be

User Guidelines

• Under a favorable working environment, the measurement error is about ± 2mm. If the working environment is not ideal (strong sunlight, excessive temperature difference, or large surface reflection of the measured object), the maximum measurement error of the equipment will increase.

Measuring distance

• The maximum measuring distance is 50 meters. In the evening, at dusk or in the shadow of the target, the range will be increased if the target is not suitable. Please use the target when the sunlight or target reflection is not good.

The surface of the measured object

• When the measured object is a colorless liquid (such as: water), clean glass, such as the characteristics of the surface has a transparent object, may cause error of measurement. When the measured object has a very strong reflection, laser can be reflected off, thus leading to errors of measurement. Measuring surfaces without reflection or very dark can increase the measuring time.

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.

Information display

All the information icon, or “Error” is displayed. The information shown below can be corrected:

zone
401| Hardware error| Switch on/off the instrument several times. If the symbol still appears, then your instrument may be defective.

Technical Specifications

1.2K2, UM3, Pencil, MN1500, MX1500, MV1500)

Use this device with original accessories only. Velleman Group 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 websitewww.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 Group 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.

References

• Velleman – Wholesaler and developer of electronics

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