Trotec LD6000 User manual

LD6000
EN
TRT-BALD6000-WM-04-EN
OPERATING MANUAL
COMBINATION DETECTOR

LD6000 Operating Manual
2EN
Table of Contents
This publication replaces all previous publications. No part of this publication may be reproduced, processed using
electronic systems, replicated or distributed in any way without prior written authorisation by us. Subject to technical
modifications. All rights reserved. Names of goods are used without guarantee of free usage and used for the most
part according to the manufacturers‘ syntax. The names of goods used are registered and should be considered as such.
We reserve the right to modify the design in the interest of ongoing product improvement, such as shape and colour
modifications. The scope of delivery may vary from that in the product description. All due care has been taken in
compiling this document. We accept no liability for errors or omissions. © TROTEC®
1. Safety Instructions 3
2. Intended Use 3
3. Scope of Delivery 3
4. Control Elements and Connecting Ports 4
5. Powering Up and Operating the Device 4
5.1. Microphone Jack and Sensor Port . . . . . . . . . . . . . . . . . . . . . . . . .4
5.1.1. Connecting the Microphones for Acoustic Leak Detection .4
5.1.2. Connecting the Hydrogen Sensor for Trace Gas Detection .5
5.2. Powering On and Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6. avigation and Menu Structure 5
6.1. Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6.2. Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6.3 Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6.4. Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6.4.1. Time and Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6.4.2. Languages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6.4.3. Power Off Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6.4.4. Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6.4.5. Frequency ange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6.4.6. Hearing Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6.4.7. Touch Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6.4.8. Clear Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
7. Acoustic leak and pipe detection 6
7.1. Parameter Settings in the Acoustic Modes . . . . . . . . . . . . . . . . . . .7
7.1.1. Manual sensor sensitivity adjustment . . . . . . . . . . . . . . . .7
7.1.2. Automatic sensor sensitivity adjustment . . . . . . . . . . . . .7
7.1.3. Selecting the Filter Presetting . . . . . . . . . . . . . . . . . . . . .7
7.1.4. Volume Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
7.2. Smart Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
7.2.1. Mode Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
7.2.2. Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
7.2.3. Measuring Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
7.3. F&V Mode (Frequency and Volume) . . . . . . . . . . . . . . . . . . . . . . . .9
7.3.1. Mode Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.3.2. Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.3.3. Measuring Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.4. V Mode (Level Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.4.1. Mode Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.4.2. Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.4.3. Measuring Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.5. PULSE mode
(acoustic pipe detection using a pulse wave generator) . . . . . . . .10
7.5.1. Mode description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
7.5.2. Mode selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
7.5.3. Measuring operation . . . . . . . . . . . . . . . . . . . . . . . . . . .10
7.5.4. Filter settings in PULSE mode . . . . . . . . . . . . . . . . . . . . .10
7.6. Clear Current Measurement Series . . . . . . . . . . . . . . . . . . . . . . .10
7.7. Adjusting the filter and switching on the acoustic function . . . . .11
7.7.1. Manual filter frequency adjustment . . . . . . . . . . . . . . . .11
7.7.2. Automatic filter frequency adjustment . . . . . . . . . . . . . .11
7.7.3. Switching on the acoustic function
during filter adjustment . . . . . . . . . . . . . . . . . . . . . . . . .11
8. Acoustic Long-Term Measuring 11
8.1. Parameter Settings for Acoustic Long-Term Measuring . . . . . . . .12
8.2. Measuring Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
9. Trace Gas Detection 12
9.1. Putting the Device into Operation . . . . . . . . . . . . . . . . . . . . . . . .12
9.2. Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
9.3. Normal Measuring with Acoustic Feedback . . . . . . . . . . . . . . . . .13
9.4. Defining Alarm Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
9.5. Measuring with Zero Calibration . . . . . . . . . . . . . . . . . . . . . . . . .14
9.6. Clearing the Measurement Series / Clearing Zero Calibration . . .14
10. Saving and Loading Measuring Data 15
11. Transferring Measuring Data To A PC 15
12. Troubleshooting 16
Trace as Detection – List of possible errors or faults . . . . . . . . . . . . . .16
Acoustic leak detection – List of possible errors or faults . . . . . . . . . . .16
13. Changing the Battery, Cleaning and Maintenance 17
Changing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Cleaning and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
LD6000 Measuring Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
LD6000 H2 hydrogen sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
14. Technical Data 17
15. Information for Use in the Field 18
15.1. Acoustic Leak Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
15.1.1. How Sound Is Created . . . . . . . . . . . . . . . . . . . . . . . . . .18
15.1.1.1. Ground-Borne Sound . . . . . . . . . . . . . . . . . . . .18
15.1.1.2. Structure-Borne Sound . . . . . . . . . . . . . . . . . . .18
15.1.1.3 Current Induced Sound . . . . . . . . . . . . . . . . . . .18
15.1.1.4 Interference Factors . . . . . . . . . . . . . . . . . . . . .19
15.1.2. Schematic Leak Detection . . . . . . . . . . . . . . . . . . . . . . .19
15.1.2.1 Narrowing Down the Leak Using
a Stick Microphone . . . . . . . . . . . . . . . . . . . . . .19
15.1.2.2 Pinpointing the Leak Using a Ground Microphone
. . 19
15.1.2.3 Pipe Detection with Pulse Wave Generator . . . .19
15.2. Leak Detection with Trace as . . . . . . . . . . . . . . . . . . . . . . . . . .19
15.2.1 Functioning Principle . . . . . . . . . . . . . . . . . . . . . . . . . . .19
15.2.2 How to Carry Out Leak Detection with a Forming Gas . . .19
15.2.3 Determining Correct Quantities Using
Experience Gained in the Field . . . . . . . . . . . . . . . . . . . .19

LD6000 Operating Manual 3
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1. Safety Instructions
We do not accept any liability for any damages which might occur as a result
of improper use or the non-observance of these instructions. The guarantee
expires with immediate effect in such cases!
These instructions must be read in full before the device
is put into operation for the first time!
For reasons of safety and CE compliance you may on no account carry out any
changes or modifications on either the device itself or any other components
which may be used in connection with this measuring device!
The following instructions must be adhered to before the device is taken into use:
• Do NOT carr out measurements on live components.
• Please observe the measuring range of the measuring sensor.
• Please observe the operating and storage conditions.
• Do NOT immerse the sensor head of the h drogen sensor in standing water
or an other liquids and do not dip into sludge or an sludge-like substances.
• Do NOT bring the sensor head of the h drogen sensor into contact
with fine powder or powder substances.
• The user is solel responsible for determining whether he or she considers
the measuring results to be valid and for an conclusions that are reached or
an measures that are taken as a result thereof. We can neither guarantee
the validit of an measuring results nor can we accept liabilit for an such
results. We are on no account able to accept liabilit for an damage which
ma be caused as a consequence of the use of these measuring results.
3. Scope of Delivery
LD6000
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This measuring device was designed and manufactured in line with the latest technological advancements and complies
with the requirements as laid down in existing European and national guidelines. Conformity has been certified.
The relevant declarations and documents are in the manufacturer’s possession.
As the user you must read and adhere to the following safety instructions in order to ensure that this
condition is maintained and that no danger results from the use of this device:
2. Intended Use
The LD6000 is a combo detector designed to allow the user to carry out elec-
troacoustic leak detection in pipe systems and to perform non-destructive pin-
point leak detection in systems which have been previously flooded with trace
gas using the indicative measurement of different hydrogen concentrations.
The device may be used for this purpose only and only within the
technical data parameters as specified.
Any other use is considered to be not intended for this purpose.
In accordance with the EU (European Union) Directives on Waste
Electrical and Electronic Equipment (WEEE), electronic equipment
must not be treated as domestic waste, but must be disposed of
professionally in accordance with Directive 2002/96EU of the
EU OPEAN COUNCIL AND PA LIAMENT of 27 January 2003
regarding old electrical and electronic equipment.
Please dispose of this appliance in a manner appropriate to the
relevant legal requirements at the end of its product life.
The following components are included in the
standard scope of delivery:
• LD6000 measuring device 
• LD K – sound blocking headphones 
• LD6000 BM – universal microphone with magnet adapter 
• LD6000 DA – tripod adapter 
• LD6000 VL – stick extension with tip 
• LD6000 TG – shoulder strap 
• PC connecting cable, USB 
• LD6000 transport case
The following components are available
as optional accessories:
• LD6000 BMW – wind protected ground microphone
(with dead-man’s button) 
• LD6000 VK – connecting cable 
• LD6000 BMW DA – tripod adapter for LD6000 BMW ground microphone 
• LD6000 H2 – hydrogen hand sensor 
• LD6000 H2 – hydrogen ground sensor with integrated pump 
• LD6000 transport case V

LD6000 Operating Manual
4EN
5.1.1. Connecting the Microphones for
Acoustic Leak Detection
Please be sure to use one of the following microphones only when carrying
out acoustic leak detection with the LD6000.
LD6000 BM universal microphone
The LD6000 BM is a universal microphone which can be either be used as a
probe microphone or a contact microphone. Connect the LD6000 VL extension
kit to the universal microphone and use as a probe microphone to pinpoint leaks
or screw on the optionally available magnet and use as a contact microphone
when carrying out leak detection where ferromagnetic pipes, for example, are
involved. The contact microphone can then be used in connection with the LD6000
DA tripod adapter as a ground microphone to locate any potential leaks.
Using the LD6000 BMW Ground Microphone
The LD6000 BMW is a wind-protected ground microphone which can be used when
carrying out leak detection on solid, stable surfaces. The LD6000 BMW can be
combined with the LD6000 DM tripod magnet for use on loose or unstable surfaces.
5. Powering Up and Operating
the Device
5.1. Microphone Jack and Sensor Port
First place the batteries into the battery compartment of the LD6000 and connect
all the components which you require to perform your specific measuring operation.
Headphones:
Connect the headphones to the headphone jack of the LD6000 if necessary
(see chapter 4, legend item ). Use the supplied LD K headphones only.
The headphones have been designed specifically for use with the LD6000
and for carrying out acoustic leak detection. The state-of-the-art electronics
incorporated in the high-quality hearing protector capsule ensure optimal results
while providing excellent soundproofing qualities.
On/Off key
Left-hand volume dial
This dial has two functions: you can either press Aor turn B
the dual function dial. Turn the dial to adjust the volume of your
headphones while measuring is being carried out. Press the dial
to clear the current measurement series.
Record button
Touch display
You can also use the high resolution colour touch screen to carry out
adjustments to the measuring device in place of the dial.
Cancel key
Right-hand navigation dial
This dial has two functions: you can either press A
or turn Bthe dual function dial.
Turn the dial to access menu and setting functions and to specify selected settings.
Press the dial to confirm selections and settings. The navigation dial on the right
can also be used to execute a variety of settings which will be dealt with more
closely in the following chapters.
Headphone key
Headphone jack
Connection for PC cable
 Screw-on battery compartment lid
 LD6000 H2 hydrogen sensor connecting port
 Microphone jack
4. Control Elements and Connecting Ports
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LD6000 Operating Manual 5
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Depending on the type of acoustic measurement, the microphones
can be connected to the LD6000 as follows:
The LD6000 BM as a Ground Microphone:
Connect the LD6000 DA tripod adapter to the base of the LD6000 BM
and connect the microphone to the microphone jack (see chapter 4,
legend item )of the LD6000.
The LD6000 BM as a Contact Microphone:
Connect the magnet base to the base of the LD6000 BM and connect
the microphone to the microphone jack (see chapter 4, legend item )
of the LD6000.
The LD6000 BM as a Probe Microphone:
Connect the tip of the LD6000 VL to the base of the LD6000 BM either with or
without the extension piece and connect the microphone to the microphone jack
(see chapter 4, legend item )of the LD6000.
LD6000 BMW Ground Microphone:
Connect the LD6000 DM tripod magnet to the base of the LD6000 BMW if
necessary. Connect the LD6000 VK connecting cable to the microphone and
plug the microphone into the microphone jack (see chapter 4, legend item )
of the LD6000.
5.1.2. Connecting the Hydrogen Sensor for
Trace Gas Detection
The LD6000 H2 hydrogen sensor can be connected to the LD6000 to carry out
non-destructive leak detection in systems that have previously been flooded
with trace gas. Connect the sensor to the hydrogen sensor port (see chapter 4,
legend item )of the LD6000.
You will find instructions on how to carry out measuring in chapter 9 and
further practical information guidelines regarding the use of trace gas
in leak detection in chapter 15.2.
5.2. Powering On and Off
Press the On/Off key to power on (see chapter 4, legend item ). The start
screen appears and changes to the main menu as soon as the measuring device
is ready for use.
Press the On/Off key and hold for approx. 3 seconds to power off
(see chapter 4, legend item ).
6. avigation and Menu Structure
6.1. avigation
The LD6000 has a number of menu and selection boxes which you can select
by either using the touch screen or the navigation dial on the right. When using
the touch screen, simply briefly place your finger on the menu or selection box
you wish to select.
You can also turn the dial either clockwise or anticlockwise
continuously to go through all the menu or selection boxes
in order to get to the box you wish to select.
Active menu items or selection boxes are highlighted in yellow.
Press the dial when you are finished to confirm your
selection. The menu or selection box which you have
selected will now be shown.
Press the cancel key to leave the menu or selection box
which is just being shown and return to the last command line
which was confirmed.
6.2. Main Menu
You are in the main menu when you power on the LD6000 for the first time.
You can navigate to the following sectors from there:
• Help menu (chapter 6.3)
• Setting menu (chapter 6.4)
• Measuring operation with acoustic leak and pipe detection (chapter 7)
• Measuring operation acoustic long term measurements (chapter 8)
• Measuring operation trace gas detection (chapter 9)
• PC data transfer (chapter 11)
Press menu in the upper screen bar or the cancel key to return to
the main menu from the selected sector.
6.3 Help
The LD6000 is equipped with an integrated help function which can be accessed
from either side. Navigate to the menu item Help in the upper menu bar as
described in chapter 6.1. to get to the Help main page. Scroll to the Help topic
which you would like to find out more about and confirm your selection by
pressing the dial on the right to get to the help text you need.
Press the door symbol within the help sector to navigate back out of the
help sector step by step. Return to the Help main page from a Help text
by pressing the door symbol. Press the door symbol to return to the
main menu from the Help main page.
Press the cancel key to leave the help sector immediately.
You will then return to the main menu.
6.4. Settings
You can reach the menu Settings via the Settings symbol
in the main menu.
Navigate to the settings you wish to select and carry out your selection in order
to perform the following configurations:
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LD6000 Operating Manual
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6.4.1. Time and Date
Use the dial on the right to navigate to the selection field of your choice. The
selection field you have chosen will be marked with a red border. Press the
dial on the right to confirm your selection. The field you have selected is now
active and highlighted in yellow.
Press the dial again or press the cancel key to deactivate the field
you have selected.
When the selection field is active, you can enter a value by turning the dial on
the right and pressing the dial to confirm that the value you have entered is
correct. You can now navigate to the next selection field.
To enter the value via the touch screen, first press your finger against the sele-
ction field which you wish to activate and then enter the value using the number
pad. Press OK to confirm that the value you have entered is correct and press
DEL to clear the value.
Press the cancel key or the door symbol on the screen to leave the setting menu.
6.4.2. Languages
You can select from one of several display languages. Scroll down to the language
you wish to select and press the dial on the right to conform your selection.
Press the Cancel key or the door symbol on the screen to leave the setting menu.
6.4.3. Power Off Time
You can conserve battery power by selecting a time between 1 and 60 minutes
after which the device then automatically powers off when not in use.
Repeat the procedure as described in Time and Date (see chapter 6.4.1.) to
enter the length of time you have selected.
6.4.4. Backlight
The brightness of the display can be adjusted from 0 to 100 % to suit your
individual requirements. There is also a scale with three individual colour seg-
ments which show you just how much battery power the brightness setting
you have selected consumes.
The batteries will last longest when the scale is green and used up
fastest when the scale is red.
Turn the dial on the right to increase or dim the brightness and leave the menu
by either pressing the dial or by pressing the cancel key or the door symbol on
your screen.
6.4.5. Frequency Range
With the LD6000 a frequency range of 0- 4,000 Hz can be analyzed. Each of the
measuring modes that can be used during acoustic leak detection has both a
selection of predefined filters as well as a selection of user-defined filters which
can be configured in the setting window Frequency ange.
The settings of the high pass filter (HP), the low pass filter (LP) and the maximum
breadth of the colour spectrum can all be changed.
Repeat the procedure as described in Time and Date (see chapter 6.4.1.) to enter
the configuration you have selected.
6.4.6. Hearing Protection
The LD6000 is equipped with an automatic sound absorber which ensures that
hearing protection guidelines according to B V B3 (formerly VB 121) (B V -
Accident Prevention & Insurance Association) are complied with when used with
the headphones included in the scope of delivery.
The noise protection intensity of the headphones can be adapted individually to
suit the user. The intensity ranges from 0 (relatively low) to 3 (maximum). Each
of the three stages complies with the requirements as laid down in VB 121.
The configuration corresponds to the procedure for setting the time
and date as described in chapter 6.4.1.
6.4.7. Touch Screen
You can use this setting window to deactivate the touch screen function or to
carry out a calibration or performance check.
Use the dial on the right to navigate to the selection field of your choice
and confirm your selection by pressing the dial.
If on/off has been selected, you can activate or deactivate the touch screen
function respectively by pressing the dial.
To leave the setting menu either press the dial or press the Cancel key
or the door symbol on the screen.
6.4.8. Clear Memory
You can clear two different memory values in this window setting.
Clear Memory clears all the values that have been saved into the device.
Clear Parameter Memory clears all the user-defined configurations for the high
pass filter, low pass filter and the maximum breadth of the frequency spectrum
in the window setting Frequency Range (see chapter 6.4.5.).
You can also use the touch screen to clear the memory or use the dial on the
right to navigate to the selection field you have chosen before pressing the
dial to confirm your choice. A tick symbol will appear to acknowledge that the
memory has been cleared.
To leave the setting menu either press the dial or press the cancel key or the
door symbol on the screen.
7. Acoustic leak and pipe detection
In order to be able to carry out acoustic leak detection with
the LD6000, first activate the symbol for your acoustic leak
detection measuring operation in the main menu and confirm
your selection.
How to get to the display.
☞Your measuring device is preset to Smart mode. In addition to the
Smart mode, you may choose to select the F&L (frequency and
volume) and the V mode (level mode) or the pipe detection PULSE mode
(acoustic pipe detection using the pulse wave generator). The individual
measuring modes will be explained in detail in chapters 7.2 to 7.5.
Regardless of the measuring mode you have selected, the following parameters
can be set for all the measuring modes that can be used to carry out leak detection
in the same consistent manner:
 Sensor sensitivity setting
 Selection of predefined filter settings
 Volume setting
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LD6000 Operating Manual 7
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7.1. Parameter Settings in the Acoustic Modes
7.1.1. Manual sensor sensitivity adjustment
To set the sensitivity of the sensor which is connected to your leak detection
device, navigate in the display window to the symbol for the sensor sensitivity
setting , activate the symbol and confirm your selection.
The sensor sensitivity settings window opens.
The microphone amplification factor that has been currently selected is displayed
on a scale from 0 to 100 %. Turn the dial on the right or touch the touch screen
and pull your finger to the sensitivity value which you would like to select.
The sensitivity value is ideal when the control bar on the left is half red, as
shown. Press the cancel key to leave the window without changing the sensi-
tivity value.
Press the dial on the right to confirm the new setting or press the cancel key.
You can also confirm the setting change by pressing the symbol for the sensor
sensitivity on the touch screen.
Important: The current measurement series will be cleared when any
changes are carried out to the sensitivity settings!
The sensitivity value you have selected will either be displayed as a number
or in the form of a tachometer in the symbol for the sensitivity setting .
7.1.2. Automatic sensor sensitivity adjustment
In addition to the manual adjustment function, the LD6000 is also equipped with
an automatic adjustment function which enables you to set the sensor sensitivity
independently to the optimum setting.
To use this automatic function, navigate to the symbol for the sensor sensitivity
settings in the display , activate the symbol and confirm your selection.
The sensor sensitivity setting window opens.
Press the record button and keep pressed until
you hear a signal tone.
The acoustic signal tells you that the amplification has been automatically set
to the optimum setting.
To close the settings window, press the right-hand dial or the cancel key.
Alternatively you may close the window by pressing the sensor sensitivity
setting symbol on the touchscreen.
7.1.3. Selecting the Filter Presetting
You can select one of three filters when carrying out acoustic leak detection.
Each of the filters can be changed individually during measuring.
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To select one of the predefined filter settings, navigate to the filter mode symbol
on the display, activate the symbol and confirm your selection.
The window for the filter presetting selection opens.
There are three presettings to choose from:
• Fittings 
There is a predefined frequency range from 0 to 2,000 Hz with a
200 Hz high pass filter and an 800 Hz low pass filter which are
ideal for checking the status of fittings and hydrants.
• round 
There is a predefined frequency range from 0 to 1,000 Hz with a
50 Hz high pass filter and a 400 Hz low pass filter which are ideal
for checking the status of pipe runs. This is the factory default setting and
therefore the setting when the device is put into operation for the first time.
• User 
This presetting uses the filter range which you, the user, defined according
to your own specific filter preferences (see chapter 6.4.5). When this
product leaves the factory the frequency range is from 0 to 1,200 Hz
with a 100 Hz high pass filter and an 800 Hz low pass filter.
To carry out the setting, navigate in the window to the presetting , or 
which you wish to select, activate the setting and confirm your selection by
pressing the dial on the right. The window then closes and the symbol for the
selected filter setting appears as the filter mode symbol .
Press the cancel key to leave the window without changing the filter setting.
Important: The current measurement series will be cleared when any
changes are carried out to the filter settings!
In addition to the predefined filters, you can change the predefined filter settings
manually in all the measuring modes at any time between individual meas-
urements while leak detection is being carried out. In order to do so, follow
the instructions as described in chapter 7.7.
7.1.4. Volume Setting
You can adjust the volume of the headphones to suit your requirements. The
volume does not depend on the predefined hearing protection intensity (see
chapter 6.4.6.) which you may have selected.
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The volume you have selected will either be displayed as a number or in the
form of a tachometer in the symbol for the volume of the headphones .
Changing the Volume Before or After Measuring:
To change the volume of your headphones before or after measuring, navigate
in the window to the symbol for selecting the headphone volume , activate
the symbol and confirm your selection.
The window for selecting the headphone volume opens.
The volume that has been selected for your headphones is displayed on a scale
from 0 to 100 %. Turn the dial on the right or touch the touch screen and pull
your finger to the volume which you would like to select.
Press the Cancel key to leave the window without changing the
volume setting.
Press the dial on the right to confirm the new setting or press the Cancel key.
You can also confirm the setting change by pressing the symbol for the head-
phone volume on the touch screen.
A change in volume has no affect on the measuring curve and the current
measurement series is not cleared.
Changing the Volume During Measuring:
You can change the volume at any time during
measuring by either turning the dial clockwise if you
would like to turn up the volume or anti-clockwise
if you wish to turn down the volume.
7.2. Smart Mode
7.2.1. Mode Description
The Smart Mode displays a double bar comprising a noise level indicator
and the smart indicator for enhanced leak detection.
The smart indicator is based on a complex calculation and analysis system which
includes factors like frequency, sound levels and evaluations.
This algorithm has been tried and tested and is especially effective when
background noise levels are high and the sound emitted by the leak is very quiet.
7.2.2. Mode Selection
The measuring mode symbol on the display shows which mode
has been set.
If the smart mode has not already been set, navigate to the measuring mode
symbol , activate the symbol and confirm your selection.
The window for selecting the measuring mode will then open.
To set the smart mode, navigate to the list item smart mode and confirm your
selection by pressing the right-hand dial.
The window will close and the smart mode symbol will be shown .
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7.2.3. Measuring Procedure
Press the record button to start measuring. Keep the button pressed for the
duration of the measuring operation. The device will stop measuring when the
record button is no longer pressed.
The display can show a measurement series which is made up of the last ten
individual measurements.
The first measurement is displayed on Position 1. Each further measurement –
beginning with Position 2 – will be placed on an ascending position. When
Position 10 has been reached, the oldest of the ten measurements, i.e. the
measurement on Position 1 will be cleared so that the last measurement that
was taken last is always on Position 10.
The double bar can be used to visualise the following information
in smart mode:
The right-hand, thin bar shows the sound amplitude on a sound level scale
from 0 to 100. The grey bar represents the minimum measured value, i.e. the
quietest sound that is relevant for the detection of the leak. This value is also
displayed as a number below the bar .
In addition the sound value that is currently being measured is displayed as
such on the bar .
The left-hand, broad bar is the smart indicator. The smart indicator is based
on a complex set of calculations and analysis methods (see chapter 7.2.1).
The higher the smart indicator value, the more reliable the information on the
leak. The smart indicator bar also displays the colour of the frequency which
was used for the calculation that is required to provide an indication on the
whereabouts of the leak. According to the rule of thumb, the closer the leak,
the higher the smart indicator bar value and the lighter the colour.
The smart indicator bar value is also displayed as a number next to
the actual bar .
The symbol of a waterdrop is used to denote the highest minimum sound
level in the measurement series and therefore the point at which a leak is
most likely.
☞Because the measuring values determined during leak detection
are not determined using a specific mode, but only shown in
a specific mode, measuring modes can be changed between individual
measurements and the measurements that were taken prior to the
mode change can be either analysed or measuring can be continued.
The measurement series remains unaffected and is not cleared.
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7.3. F&V Mode (Frequency and Volume)
7.3.1. Mode Description
The sound amplitude of the minimum measured value (bar height) and
the frequency range with the highest sound amplitude (bar colour) are
displayed as a bar in F&V mode.
7.3.2. Mode Selection
The measuring mode symbol on the display shows which mode has been
set. If the F&V mode has not already been set, navigate to the measuring mode
symbol , activate the symbol and confirm your selection. The window for
selecting the measuring mode will then open.
To set the F & V mode, navigate to the list item F&V mode and confirm your
selection by pressing the right-hand dial. The window will close and the F & V
mode symbol will be shown .
7.3.3. Measuring Procedure
Press the record button to start measuring. Keep the button pressed for the
duration of the measuring operation. The device will stop measuring when the
record button is no longer pressed.
The display can show a measurement series which is made up of the last ten
individual measurements. The first measurement is displayed on Position 1.
Each further measurement – beginning with Position 2 – will be placed on
an ascending position. When Position 10 has been reached, the oldest of the
ten measurements, i.e. the measurement on Position 1 will be cleared so that
the last measurement that was taken last is always on Position 10.
The single bars are used to visualise the following information
in F& V mode:
As is the case in V mode, the height of the bar shows the sound amplitude on a
sound level scale from 0 to 100. In addition, the colour of the bar visualises the
frequency range with the highest noise amplitude. The brighter the colour, the
higher the frequency.
The sound level and frequency are also shown as a number
under the bars.
In addition, the sound value that is currently being measured is displayed
in the form of a bar .
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The symbol of a waterdrop is used to denote the highest minimum sound
level in the measurement series and therefore the point at which a leak is most
likely.
☞Because the measuring values are not determined using a
specific mode, but only shown in a specific mode, measuring
modes can be changed between individual measurements and the mea-
surements that were taken prior to the mode change can be either anal-
ysed or measuring can be continued. The measurement series remains
unaffected and is not cleared.
7.4. V Mode (Level Mode)
7.4.1. Mode Description
In V mode, the measured minimum value only is
displayed as a single bar.
7.4.2. Mode Selection
The measuring mode symbol on the display shows which mode is currently
being used. If the V mode has not been set, navigate to the measuring mode
symbol , activate the symbol and confirm your selection.
The window for selecting the measuring mode will then open.
To set the V mode, navigate to the list item V mode and confirm your selection
by pressing the right-hand dial.
The window will close and the V mode symbol will be shown .
7.4.3. Measuring Procedure
Press the record button to start measuring. Keep the button pressed for the
duration of the measuring operation. The device will stop measuring when the
record button is no longer pressed. The display can show a measurement series
which is made up of the last ten individual measurements.
The first measurement is displayed on Position 1. Each further measurement –
beginning with Position 2 – will be placed on an ascending position. When
Position 10 has been reached, the oldest of the ten measurements, i.e. the
measurement on Position 1 will be cleared so that the last measurement that
was taken last is always on Position 10.
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When in V mode, the height of the bar shows the noise amplitude of the
measured minimum value on a sound level scale from 0 to 100.
In addition, the value that is being currently measured is displayed
on the bar .
The symbol of a waterdrop is used to denote the highest minimum
sound level in the measurement series and therefore the point at
which a leak is most likely.
☞Because the measuring values during leak detection are not
determined using a specific mode, but only shown in a specific
mode, measuring modes can be changed between individual measure-
ments and the measurements that were taken prior to the mode change
can be either analysed or measuring can be continued. The measurement
series remains unaffected and is not cleared.
7.5. PULSE mode (acoustic pipe detection using a
pulse wave generator)
7.5.1. Mode description
The pulse wave generator produces a pressure wave which is repeated
periodically and can be picked up further down the pipe by the LD6000
and a connected ground microphone. This enables you to detect non-metallic
water pipes up to a depth of 2 metres without first having to interrupt any services
or turn off any water supplies.
7.5.2. Mode selection
The measuring mode symbol displayed in the display shows you which mode
has been currently selected. If the PULSE mode has not already been selected,
navigate to the measuring mode symbol , activate the symbol and confirm
your selection.
The measuring mode selection window opens.
To set the PULSE mode, navigate to the list item PULSE mode and confirm your
selection by pressing the right-hand dial.
The window closes and the PULSE mode symbol is displayed as a measuring
mode symbol .
7.5.3. Measuring operation
Press the record button to start a measurement and release the record button
to stop the measurement. The measurement will last for as long as you keep
the record button pressed.
The last ten individual measurements can be displayed as a measurement series
in the display. The first measurement is displayed on position 1 and each new
measurement is displayed in ascending form from position 2 upwards. When
the tenth measurement has been carried out, the first position, ie. the oldest
measurement will be deleted and the last measurement will be displayed on
position 10.
In PULSE mode, the height of the bar shows the sound amplitude of the measured
minimum value on a scale of 0 to 100.
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In addition, the current measurement is displayed as a bar value .
The bar which shows the actual value is a practical aid for detecting pipes
because it clearly shows the impulse which the LD-PULS is generating. The
volume and frequency of the impulse are at their highest directly above the pipe.
The interval and intensity of the impulses are displayed visually in a four-second
window on the bottom time axis .
7.5.4. Filter settings in PULSE mode
In contrast to the leak detection filter presettings (see chapter 7.1.3.), a filter
mode symbol which is only available in this mode appears in PULSE mode.
There is a predefined frequency range with a 0 Hz high pass filter and a 1,000
Hz low past filter. This is the factory setting which you would use for your first
measurement.
The frequency range can be adjusted at any time to suit your individual
requirements. To adjust the frequency range, navigate to the filter mode symbol
, activate the symbol and confirm your selection.
The acoustic filter adjustment window opens.
Follow the instructions for adjusting the filter frequencies as described in
chapter 7.7.1.
☞We recommend that you do NOT use the automatic function
(chapter 7.7.2.) in PULSE mode. Instead we recommend that you
adjust the filter frequencies manually. As a rule, the following applies: the
greater the distance between the LD6000 and the LD-PULS, the lower the
frequency you should select. A frequency window ranging from 0 - 350 Hz
has proved to be particularly effective when working in the field.
7.6. Clear Current Measurement Series
As many as 10 single measurements can be carried out with the LD6000 and
used as a measurement series which can then be seen on the display. This series
remains in the memory – even when the device is powered off – unless certain
parameters are changed.
This function is of a particular advantage in the field as this means that the last
measuring value can then be “carried over” to the next measuring point where
the measurement series can then be continued.
It must be pointed out that the measurement series will be cleared as soon as
the sensor sensitivity settings or the predefined filter settings are changed.
Follow the instructions in chapter 10 to find out more on how the measurement
series can be saved permanently.
To clear the individual measurements or the measurement
series shown on the display, press the dial on the left and
keep pressed for 3 seconds. All 10 positions on the dis-
play have now been cleared and are empty.
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