velleman DEM700 Digital Laser Distance Meter User Manual

velleman DEM700 Digital Laser Distance Meter

Introduction

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

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

| Warning! Visible laser radiation. Do not stare into the beam as eye damage may occur. This device contains a class 2 laser.
Output power does not exceed 1 mW, wavelength 650 nm.
---|---
Never point the laser beam at a person or animal. Never point the laser beam at reflective surfaces. Never look at the laser beam using an optical instrument, such as binoculars or a microscope.
| Keep this device away from children and unauthorized users.
| Keep this device away from rain, moisture, splashing and dripping liquids. Never put objects filled with liquids on top of or close to the device.

General Guidelines

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

• Keep this device away from dust and extreme temperatures.
• Protect this device from shocks and abuse. Avoid brute force when operating the device.
• Familiarize yourself with the functions of the device before actually using it.
• All modifications of the device are forbidden for safety reasons. Damage caused by user modifications to the device is not covered by the warranty.
• Only use the device for its intended purpose. Using the device in an unauthorized way will void the warranty.
• 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.
• Readings may be affected if the unit is operated within a radio frequency electromagnetic field, but the performance of the instrument will not be permanently affected.
• Use the original packaging if the device is to be transported.
• Keep this manual for future reference.

Features

• large LCD with backlight
• choice between metric and imperial units
• calculate surface and volume
• indirect measurements using 2 or 3 measuring points
• add up and subtract functions
• last 10 measurements are retained in memory
• very large measuring range (60 m) and very high precision (± 1.5 mm)
• automatic / manual switch-off

Overview

Display

Battery

This device is battery-operated, using 2x 1.5 V batteries. Replace them when the battery-low icon appears.
To replace the batteries, proceed as follows:

1. Switch off the device.
   A malfunction may occur if you replace the batteries while the device is on.

2. Open the battery compartment.

3. Replace the batteries with new 1.5 V batteries.

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

Basic Operation

1. Hold the MEAS button pressed to switch on the distance meter.
2. Press the UNIT button to select the measurement unit from meter (m), feet (ft), inches (in) to sixteenths of inches (x/16 in).
3. Press the backlight button to switch the backlight on or off.
4. Hold the OFF/DEL button pressed to switch off the distance meter.

Setting the Measurement Benchmark

1. Press the benchmark button to switch between the front and end benchmark.
2. The end benchmark is the default benchmark.

Single or Continuous Measurement

Single Measurement

1. Press the MEAS button to switch on the laser.
2. Aim the IR sensor towards the object to be measured.
3. Press the MEAS button to measure the distance. The value appears on the LCD display.

Continuous Measurement

1. Hold the MEAS button pressed to enter the continuous measuring mode.
2. Aim the IR sensor towards the object to be measured.
3. The current, minimum and maximum values appear on the LCD display.
4. Press the MEAS button again to exit the continuous measuring mode.

Area Measurement

1. Press the area/volume button to enter the area-measuring mode.
2. Press the MEAS button and measure the length.
3. Press the MEAS button and measure the width.
4. The meter automatically calculates the area. The value appears on the LCD display.
5. Press the MEAS button to exit the mode.

Volume Measurement

1. Press the area/volume button twice to enter the volume-measuring mode.
2. Press the MEAS button and measure the length.
3. Press the MEAS button and measure the width.
4. Press the MEAS button and measure the height.
5. The meter automatically calculates the volume. The value appears on the LCD display.
6. Press the MEAS button to exit the mode.

Indirect Measurement

The indirect measurement consists of measuring a distance using the Pythagorean Theorem.
Remarks:

• For accurate measurements, distances must be measured from the exact same starting point. Therefore, it is advisable to fix the meter on a tripod (not included).
• To avoid measurement errors from the meter, the length of the vertical side must be shorter than the length of the hypotenuse.

Simple Vertical Distance Measurement

1. Press the Pythagorean measurement button to enter the mode.
2. Press the MEAS button a first time and measure the length of the hypotenuse [1].
3. Press the MEAS button a second time and measure the length of the bottom line [2].
4. The meter automatically calculates the length of the vertical line. The value appears on the LCD display.

Combined Vertical Distance Measurement

1. Press the Pythagorean measurement button twice to enter the mode.
2. Press the MEAS button a first time and measure the length of the hypotenuse [1].
3. Press the MEAS button a second time and measure the length of the second line [2].
4. Press the MEAS button a third time and measure the length of the bottom line [3].
5. The meter automatically calculates the length of the vertical line. The value appears on the LCD display.

Hypotenuse Distance Measurement

1. Press the Pythagorean measurement button thrice to enter the mode.
2. Press the MEAS button a first time and measure the length of the vertical line [1].
3. Press the MEAS button a second time and measure the length of the bottom line [2].

Adding and Subtracting Distances

1. Measure your first distance.
2. Press the + or – button to enter the adding or subtracting mode.
3. Measure your second distance.
4. The meter automatically calculates the length. The value appears on the LCD display.

Storing and Browsing Measurements

Storing
Measured values will automatically be stored in the meter’s memory. The memory can store up to 10 measurement values.

Browsing

1. Press the storage button to enter the meter’s memory.
2. Browse through the stored values with the + or – button.
3. Hold the storage button pressed to delete all previously stored values.

Time Delay Measurement

After switching on the meter, press the TIMER button to delay the measurement for about 5 seconds.

Troubleshooting

with weaker surrounding light
**| working temperature out of range| carry out measurements when the ambient temperature between 0°C and 40°C
2800**| hardware failure| contact your local dealer

Cleaning and Maintenance

• The IR sensor is the most delicate part of the device and it shall be kept clean at all times. To do this, only use a soft cloth or cotton bud with a little water or medical alcohol.
• Allow the lens to fully dry before using the device.
• Wipe the other parts of the device regularly with a moist, lint-free cloth. Do not use alcohol or solvents.
• Do not submerge the device in water or any other liquid.
• There are no user-serviceable parts. Contact your dealer for spare parts if necessary.
• The device shall be stored between –20°C and +65°C (–4°F to + 149°F).

Technical Specifications

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.

References

• Velleman – Wholesaler and developer of electronics

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