Gutermann AQUASCAN 620L User manual

AQUASCAN 620L
Operating Manual
JW V1.2 Date November 2016

AQUASCAN AQ620L 1/35
Version 1.2
Contents
1. Indications for Use....................................................................................2
Symbols..............................................................................................2
Safety .................................................................................................3
Warning ..............................................................................................3
Intended Use ......................................................................................3
System Components ..........................................................................4
Charging all equipment.......................................................................5
2. Quick Start Guide .....................................................................................5
3. Sensors ..................................................................................................18
3.1 Positioning of Accelerometers ..........................................................19
3.2 Antenna Setup....................................Error! Bookmark not defined.
3.3 Installation of Hydrophones ..............................................................20
4. Main Screen............................................................................................22
4.1 . Measurement Graph/Chart.............................................................23
4.2 . Leak Location ................................................................................24
4.3 Correlation Quality............................................................................24
4.4 Indicators..........................................................................................24
4.5 Correlate- Start, Pause and Stop measurement...............................25
4.6 File Keys...........................................................................................25
4.7 Listening to the Sensors ...................................................................26
4.8 Filter Keys.........................................................................................26
4.9 Settings.............................................................................................26
5. Working with Correlation Recordings......................................................28
6. Entering Pipe Sections ...........................................................................29
7. Filter........................................................................................................32
7.1 Notch Filter .......................................................................................32
7.2 Manual Filtering................................................................................33
7.3 Auto Filter .........................................................................................34
7.4 Spot Filter .........................................................................................35

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1. Indications for Use
It is essential to read the operating instructions carefully and completely
before using the first time the equipment and software. They contain
important information on safety, installation and use. Keep these
instructions in a safe place.
Symbols
Warning of dangerous situations that can cause injury
and damage to the devices.
Warning
The AQUASCAN Correlating Sensors contains a
very powerful magnet. The operation of cardiac
pacemakers and implanted defibrillators can be
influenced. People with cardiac pacemakers and
implanted defibrillators are not permitted
anywhere near this product.
Important notes and tips are a sign Info provided.
Follow these guidelines.
Never put in your household waste bin.

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Safety
The operating and maintenance personnel must read the instructions
carefully before using the equipment. Knowing all the information
contained therein - in particular the warning and safety instructions - is
needed to safely operate the equipment, and to protect yourself and
others against possible dangers. Ignoring the warning, safety and
operating instructions can result in injury, damage, or a considerable
shortening of the equipment life time. Do not make any changes or
alterations to our products. Never open the device, otherwise any
warranty and conformity expires. For questions concerning replacing
the battery, please contact your Gutermann distributor. When using the
software or the equipment, make sure you adhere to any applicable
regulations, in particular traffic regulations.
Warning
The Aquascan 620L Correlator contains a very powerful magnet. The
operation of cardiac pacemakers and implanted defibrillators can be
influenced. People with cardiac pacemakers and implanted
defibrillators are not permitted anywhere near this product.
Intended Use
Aquascan products, hardware, software, and accessories are
exclusively intended for industrial use and exclusively intended for leak
detection on water pipes of the public water supply. In particular, these
products are not intended to be used on waste water and gas pipes.
Gutermann Technology GmbH is not liable for any damages caused by
misuse, improper operation, and as a result of non-compliance with
safety instructions and warnings.

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System Components
The AQUASCAN 620L consists of:
•Windows operated Tablet,
•CommLink unit
•Two radio-operated sensors,
•Battery chargers AC mains and DC,
•Antennae & Cables,
•Hydrophone sensors & Cables,
•AQUASCAN 620L software.

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Charging all equipment
The Sensors and Commlink contain rechargeable batteries and can be
charged either from AC mains electricity (110 -240v) using the charger
supplied or from the 12v DC socket in a car. All 3 components maybe
charged at the same time from the red lead supplied. Remove the red
cap from the 12v Cigar plug on the red lead and insert it into either the
AC mains charger socket for charging in the office or directly into the
12v socket in the car. An hour is usually enough time to achieve full
charge. All units LED will flash during charging and then will turn off
when complete.
2. Quick Start Guide
To start, connect antenna to Commlink and switch on.
Figure 1 Switch on the Commlink
The LED will start flashing, indicating initialization state. As soon as
flashing stops, the Link unit will be ready for connection by Bluetooth of
the Windows operated Tablet. To Pair the Commlink with the Tablet
switch on the BlueTooth and tap the BT symbol on the tablet.

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Figure 2 Tap the Bluetooth Symbol
The Bluetooth Manager opens then tap New Connection
Figure 3 New Connection

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Use Express mode and tap next
Figure 4 Express Mode
The Commlink serial number appears in the window, highlight it and
then Next.
Figure 5 Choose the Device

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In the following window enter 4 x Zero (0000).
Figure 6 Bluetooth Pin code
The final window will confirm the setup is complete and identify the
Com Port (40 in the example below). Take note of the Port number.
Figure 7 Com port setting

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Open the AquaScan 620L software and choose Preferences, then
select the matching Com Port in the drop down.
Figure 8 Match the Com port in AQ 620L Software
Tap the Antenna symbol to connect to the Commlink which appears in
the bottom right of the main screen.
Figure 9 Connect to the Commlink

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1. Deploy both Sensors by magnetically attaching them to the pipe
fittings. If hydrophones are used ensure the water connections are
leak free.
Figure 10 switch on the Sensors
Switch the sensors on by pressing the push button on the top for 1
second until the red LED is on constant before walking back towards
the correlator which should be located half way. The A and B Signal
symbols within the main screen will display a signal strength indicating
communication. Try to achieve a minimum of 3 bars signal strength-
the higher the signal the better the data transfer. Optimise Antenna
location and sensor contact to create the clearest signal if not already
achieved.

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Figure 11 the sensor symbols
2. It’s important to listen to both sensors before correlating to make
sure that a clear sound is being heard. Use the A and B flag buttons to
choose either or both sensors. Listen to the filtered sound by clicking
the wave symbol left of the A and B flags.
Figure 12 Listen to the sensors
Stereo
Filtered

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Use the actual buttons on the Tablet to adjust the volume to suit.
Figure 13 Volume Adjust
3. Press the Pipe key and enter distance (measured between sensors
with a wheel) and material or sound velocity. Verify the indicated data
below the symbolic pipe in the chart.
Figure 14 enter Pipe information

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Start the correlation process by tapping the red spot button. Allow the
process to continue until a good quality correlation of 80%> is
achieved. This may take 15 to 20 minutes for difficult, quiet leaks. The
longer the duration of correlation the more data is collected by the
software for analysis which can lead to a more accurate result.
Figure 15 Start Correlation
The correlation process maybe paused or stopped at any time by using
the standard buttons shown below.
Figure 16 Stop the Correlation

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4. To activate the filters tap the Auto button and one or two
automatically generated filter regions will appear. The user can
switch between the filter regions. See filter section for a detailed
explanation. 8. Adjust the filter setting to enhance the measurement
quality and cleanness (reduced minor peaks and spicks).
Figure 17 Auto Filters
If the user prefers to use a Manual filter then tap the Man button and
enter the low and high limits to create a band pass filter. The buttons
on the tablet can be used by highlighting the low or high band and
pressing the up or down arrow until the preferred value is found.
Switch filter region

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Figure 18 Manual Filter
Tab the looking glass symbol to activate the spot filter which cleans up
the correlation by removing the majority of background noise and
focuses on the selected peak. Tap in the correlation window to select
different peak positions.
Before:
Figure 19 before applying Spot Filter

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After:
Figure 20 after applying Spot Filter
5. Press the Save key shown above (otherwise this measurement will
automatically be deleted when starting a new measurement).
Use the return key on the tablet to save the measurement.
Figure 21 save measurement

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Figure 22 Scroll through saved measurement
Scroll through the saved measurements using the arrow keys
above.The AQUASCAN 620L software also may be run off-line, allowing
further analysis, correlating saved measurements, print-outs, etc. without
being connected to the Commlink .

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3. Sensors
Figure 24 Side View of B Sensor
For switching the sensors on or off, please press on/off button for at
least one second.
The Sensors will remain on for a period of 2 hours for continuous use,
thereafter they will turn off. This is a battery saving facility, when this
happens the signal indictor on the software will turn off. To turn the
sensors back on repeat the first step.
The sensors have a built-in rechargeable battery. For recharging the
battery the sensors have to be connected to the charging unit. In off
state the LED will flash during recharging. As soon as the battery is
fully recharged, the LED will stop flashing.
The Sensor Battery should last 8 hours whereas the Commlink is 12
hours.
Charge warning: When battery is almost discharged during operation
mode, the LED will start flashing about twice per second. Further
operation will be possible for approx. 30 minutes. When battery is
discharged, the sensor will shut off automatically.
Figure 23 Top View
of B Sensor

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3.1 Positioning of Accelerometers
Figure 25 the ‘A’ Sensor attached to a valve spindle
It is critical the accelerometer is positioned in the location that has the
least interference and the clearest leak noise. Moving the sensor 10
cm can make a massive difference to your performance. The listen
function (refer to page 35) should always be used on sensor
deployment and the sensor should be positioned so that the highest
frequency noise is heard minimising the effect of electrical and
mechanical noise.
•Connecting on a flange is often better than the pipe itself.
•Connecting on the spindle of a valve is often better than the body.
•Air valves usually make less noise when they are open.
•Big bodied valves with offset spindles often provide very poor noise
and the pipe or flange is much better.