Contacta IL-CONTACTA-FSM User manual

1
Field Strength Meter
User Guide
IL-CONTACTA-FSM

2
2
CONTENTS
Meter Design goals 2
Meter Operation Basics 3
Background Noise Tests 4
Program RMS/Peak Levels 5
Evaluating Frequency Response 6
Headphone/Flat spectrum output 7
Line In Flat Response 8
Meter Specifications / Calibration 9
The Field Strength Meter has been designed to ensure that Hearing Loop
Systems be installed and certified to the new IEC 60118-4 standard. When these
standards are met the user experience will be equal wherever they have the
opportunity to use their T-coils.
Our design team interviewed many installers throughout the industry which
resulted in the following design goals:
1. Very accurate and easy to read
2. Simple/straightforward operation
3. Based on the IEC 60118-4 specification
4. Headphone output
5. Flat spectrum output
6. Built to last and be reliable
Meter Design Goals
9
Meter Specifications:
Measurement Range:
True-RMS Crest Factor:
Resolution:
Displayed resolution:
Detection Type:
Sensor:
Direction of Sensitivity:
Calibration:
Frequency Response:
A-Weighted:
Power Source:
Headphone Jack:
Display:
Backlight:
-62dB to +9dB (0dB = 400mA/m)
<3
<0.1dB resolution for levels over –32dB
0.1 dB
True RMS on all features
Pickup Coil
Length-wise of meter’s longer dimension
and Parallel to meter face (Position
noted on Product)
Calibrated at 1,000 Hz (sine) to read 0 dB
at 5.03 mG
Flat ±1dB from 50 Hz to 10,000 Hz Class
2 meter specified in IEC 61672-1
Single 9v Battery & External Power Jack
Output A-Weighted or Flat selectable
16x2 LCD Character Display
Variable brightness blue LED

3
8
Line In Flat Response Mode:
On the top of the unit is a new feature, audio dBV level. The readings
and the display help determine what level of signal is Coming from the
house feed. Levels between -10dBV and +4dBV are considered to be
line level signals. A poor loop system sound often comes from a very
low level building feed. This input uses the last mode on the FSM and
displays an accurate level which can then be demonstrated to the
building. We advise a level between -10dBV and 0dBV.
To use this feature cycle through the various mode un-til you see Line
In Flat Response on the display. Now connect up the XLR adapter
which has an XLR female on one end and an 1/8” TRS connector on the
other end. If you wish to make up your own adapter use the following
information:
1/8 in TRS connector XLR female connector
Tip ---------------------------------------- Pin 2
Ring ---------------------------------------- Pin 3
Sleeve ---------------------------------------- Pin 1
3
Meter Operation Basics
Turning the meter ON and Off
On - Press and hold button A until the screen lights
Off - Press and continue to hold button “A” until the Powering
Down process is finished and the screen goes dark
Selecting the meter mode
When you press Button “A” it first displays the current mode and the next
press advances to the next meter mode:
1. Background Noise Test with Max indication
2. Signal Strength “A weighted” RMS / Peak
3. Field Strength “Flat” RMS / Max
4. Third Octave Levels 100, 200, 500, 1K, 2.5K, 5KHz
“B” Button functions
•In modes 1 - 3 pressing the “B” button reset the
MAX or PEAK readings
•In mode 4 pressing the “B” button advances the
center frequency of the third octave filters
Sensor Location
Button “A” On/Off & Mode Control
Button “B” Reset/Select &
Frequency Advance
Use / Menu
Switch

4
4
Background Noise Level Test
After turning the meter on it comes up in the Background Noise “A
weighted” measurement mode. The display will indicate the RMS reading
on the first line and the MAX reading on the second line. Pressing button
“B” resets the MAX reading.
How to test for background noise:
When testing a new building for background noise, turn on all lights, fans,
sound system and other electrical equipment which is normally on when
the building is in use. The loop system has usually not been installed yet.
however if you are certifying an installation this test is done without the
hearing loop system turned on.
Walk throughout the seating area where the loop system will be used,
holding the meter in a vertical position at the listening plane height. The
important reading will be the MAX reading. However, it is important to
watch the RMS reading. If the MAX reading exceeds –32dBA (readings
above –32dBA will have a lower negative number, for example –30dBA
means there is more background noise than –35dBA), you will need to
document the areas where those higher noise levels are found.
IEC 60118-4 Notes and Requirements
The standard as revised in 2004 notes that any background noise level
lower than –47dBA will result in a excellent signal to noise ratio,
however levels below –32dBA are acceptable and do meet the
requirements of the standard. If the background noise level is above
–32dBA, then the building management should be notified and the
source of the interference found and repaired.
7
Method II - Pink noise signal Cont.
Record the RMS level readings for each of the frequencies`. As in method
I if the level does not vary by more than ±3dB the sys-tem as installed will
meet the IEC specification. This method was requested by the field
engineer so they could run the test with one instrument without
continually adjusting the frequency source. It also makes it easy to
conduct the test in more than one location.
Headphone / Full Spectrum Output
The headphone output jack serves two purposes: First it can be used to
monitor the loop program and gives you an “A Weighted” output signal
that can be listened to with standard 1/8” stereo head-phones. To change
the headphone volume slide the Use/Menu switch to Menu and use the
Mode button to advance to Headphone Volume. Pressing the Select
button advances to the volume adjust screen where the top button raises
the volume and the bottom but-ton lowers it. Once adjusted sliding the
switch back to Use will save the setting.
A full (flat) spectrum output can be sent from this same con-nector which
could then feed a spectrum analyzer. This would show the signal level at
the various frequencies and help to both confirm proper operation and
asses the frequency and level of any interfer-ences.
To switch from “A-Weighted” to Flat: With the meter turned on slide the
Use/Menu switch over to Menu. Press the Mode button “A” once and you
will advance to the Headphone Jack setup screen. Then pressing the
Select button “B” you can choose either A-Weighted or Flat Spectrum.
Menu Adjustments
In the Menu mode, selected by the slide switch, the following items can
be adjusted: Backlight level, headphone output type, headphone volume,
display units (dB, mG, uT), and power timeout (5 to 30, or none.
4
Background Noise Level Test
After turning the meter on it comes up in the Background Noise “A
weighted” measurement mode. The display will indicate the RMS reading
on the first line and the MAX reading on the second line. Pressing button
“B” resets the MAX reading.
How to test for background noise:
When testing a new building for background noise, turn on all lights, fans,
sound system and other electrical equipment which is normally on when
the building is in use. The loop system has usually not been installed yet.
however if you are certifying an installation this test is done without the
hearing loop system turned on.
Walk throughout the seating area where the loop system will be used,
holding the meter in a vertical position at the listening plane height. The
important reading will be the MAX reading. However, it is important to
watch the RMS reading. If the MAX reading exceeds –32dBA (readings
above –32dBA will have a lower negative number, for example –30dBA
means there is more background noise than –35dBA), you will need to
document the areas where those higher noise levels are found.
IEC 60118-4 Notes and Requirements
The standard as revised in 2004 notes that any background noise level
lower than –47dBA will result in a excellent signal to noise ratio,
however levels below –32dBA are acceptable and do meet the
requirements of the standard. If the background noise level is above
–32dBA, then the building management should be notified and the
source of the interference found and repaired.
7
Method II - Pink noise signal Cont.
Record the RMS level readings for each of the frequencies`. As in method
I if the level does not vary by more than ±3dB the sys-tem as installed will
meet the IEC specification. This method was requested by the field
engineer so they could run the test with one instrument without
continually adjusting the frequency source. It also makes it easy to
conduct the test in more than one location.
Headphone / Full Spectrum Output
The headphone output jack serves two purposes: First it can be used to
monitor the loop program and gives you an “A Weighted” output signal
that can be listened to with standard 1/8” stereo head-phones. To change
the headphone volume slide the Use/Menu switch to Menu and use the
Mode button to advance to Headphone Volume. Pressing the Select
button advances to the volume adjust screen where the top button raises
the volume and the bottom but-ton lowers it. Once adjusted sliding the
switch back to Use will save the setting.
A full (flat) spectrum output can be sent from this same con-nector which
could then feed a spectrum analyzer. This would show the signal level at
the various frequencies and help to both confirm proper operation and
asses the frequency and level of any interfer-ences.
To switch from “A-Weighted” to Flat: With the meter turned on slide the
Use/Menu switch over to Menu. Press the Mode button “A” once and you
will advance to the Headphone Jack setup screen. Then pressing the
Select button “B” you can choose either A-Weighted or Flat Spectrum.
Menu Adjustments
In the Menu mode, selected by the slide switch, the following items can
be adjusted: Backlight level, headphone output type, headphone volume,
display units (dB, mG, uT), and power timeout (5 to 30, or none.
4
Background Noise Level Test
After turning the meter on it comes up in the Background Noise “A
weighted” measurement mode. The display will indicate the RMS reading
on the first line and the MAX reading on the second line. Pressing button
“B” resets the MAX reading.
How to test for background noise:
When testing a new building for background noise, turn on all lights, fans,
sound system and other electrical equipment which is normally on when
the building is in use. The loop system has usually not been installed yet.
however if you are certifying an installation this test is done without the
hearing loop system turned on.
Walk throughout the seating area where the loop system will be used,
holding the meter in a vertical position at the listening plane height. The
important reading will be the MAX reading. However, it is important to
watch the RMS reading. If the MAX reading exceeds –32dBA (readings
above –32dBA will have a lower negative number, for example –30dBA
means there is more background noise than –35dBA), you will need to
document the areas where those higher noise levels are found.
IEC 60118-4 Notes and Requirements
The standard as revised in 2004 notes that any background noise level
lower than –47dBA will result in a excellent signal to noise ratio,
however levels below –32dBA are acceptable and do meet the
requirements of the standard. If the background noise level is above
–32dBA, then the building management should be notified and the
source of the interference found and repaired.
7
Method II - Pink noise signal Cont.
Record the RMS level readings for each of the frequencies`. As in method
I if the level does not vary by more than ±3dB the sys-tem as installed will
meet the IEC specification. This method was requested by the field
engineer so they could run the test with one instrument without
continually adjusting the frequency source. It also makes it easy to
conduct the test in more than one location.
Headphone / Full Spectrum Output
The headphone output jack serves two purposes: First it can be used to
monitor the loop program and gives you an “A Weighted” output signal
that can be listened to with standard 1/8” stereo head-phones. To change
the headphone volume slide the Use/Menu switch to Menu and use the
Mode button to advance to Headphone Volume. Pressing the Select
button advances to the volume adjust screen where the top button raises
the volume and the bottom but-ton lowers it. Once adjusted sliding the
switch back to Use will save the setting.
A full (flat) spectrum output can be sent from this same con-nector which
could then feed a spectrum analyzer. This would show the signal level at
the various frequencies and help to both confirm proper operation and
asses the frequency and level of any interfer-ences.
To switch from “A-Weighted” to Flat: With the meter turned on slide the
Use/Menu switch over to Menu. Press the Mode button “A” once and you
will advance to the Headphone Jack setup screen. Then pressing the
Select button “B” you can choose either A-Weighted or Flat Spectrum.
Menu Adjustments
In the Menu mode, selected by the slide switch, the following items can
be adjusted: Backlight level, headphone output type, headphone volume,
display units (dB, mG, uT), and power timeout (5 to 30, or none.

5
6
Measuring Frequency Response
Detailed below are two processes that can be used to confirm the
system properly reproduces all of the required frequencies equally in
the bandwidth of 100 to 5KHz. A Test Signal Generator such as the
Contacta TSG1 will be required to perform these tests. Both methods
will yield accurate results.
Method I - Sine wave signal
Send at a minimum the following sine wave signals through the hearing
loop system without adjusting any of the audio or loop level controls:
100Hz, 250 Hz, 500 Hz, 1000 Hz, 2500 Hz, and 5000 Hz. Using the Flat
Spectrum mode record the RMS level generated by each of these. To
meet the IEC specification the levels should not vary by any more than
±3dB.
Method II - Pink noise signal
Send a pink noise signal into the hearing loop system and select the
Third Octave mode on the meter. It will initially start at a 1000Hz center
frequency.
Pressing button “B” will cycle through the frequencies of 100Hz,
200Hz, 500Hz, 1000Hz, 2500Hz and 5000Hz.
IEC 60118-4 Notes and Requirements
The standard as revised notes that within the frequencies of 100Hz to
5000Hz the hearing loop system should equally reproduce all signals. At
a minimum the systems is to be tested at 100Hz, 1KHz and 5KHz.
5
Program RMS/Peak Levels
The second mode is used to set up the hearing loop signal level using an
A-Weighted filter. It is very difficult to set the field strength to an average
of –12dBA as it will constantly vary based on the program used to set up
the system. We will use the PEAK read-ing to confirm that both our
design and equipment meet the IEC specification. Pressing button “B”
resets the PEAK reading.
How to test then adjust the loop system level:
Once the hearing loop system has been installed, play some bandwidth
limited (100Hz to 5KHz) pink noise or 1KHz sine (use the driver
manufacturers recommendation) though the loop system. Walk
throughout the audience area holding your meter vertically.
Note the readings and confirm that the A-RMS level does not vary by
more than ± 3dBA. This lets you know that the perceived signal level in
the hearing aids will be the same, no matter where the person is sitting.
Next: using program audio similar to what is normally used in the facility,
adjust the audio program level to a level just above “normal”. Now turn
on the hearing loop system and adjust the drive level until a –3dBA to
0dBA PEAK level is obtained in the center of the loop. Reset the PEAK
level and confirm this level averages 0 dBA across the audience listening
plane.
IEC 60118-4 Notes and Requirements
The revised standard states that the signal level across the loop area
should not vary by more than ±3dB. Once that is confirmed, the signal
level based on the building's normal program should peak at 0 dB as
referenced to a 400mA/m. This will confirm there is adequate loop
current to produce both the peak and average (average is -12dB or 100ma/
m) signal levels for T-Coil equipped hearing aids.

6
6
Measuring Frequency Response
Detailed below are two processes that can be used to confirm the
system properly reproduces all of the required frequencies equally in
the bandwidth of 100 to 5KHz. A Test Signal Generator such as the
Contacta TSG1 will be required to perform these tests. Both methods
will yield accurate results.
Method I - Sine wave signal
Send at a minimum the following sine wave signals through the hearing
loop system without adjusting any of the audio or loop level controls:
100Hz, 250 Hz, 500 Hz, 1000 Hz, 2500 Hz, and 5000 Hz. Using the Flat
Spectrum mode record the RMS level generated by each of these. To
meet the IEC specification the levels should not vary by any more than
±3dB.
Method II - Pink noise signal
Send a pink noise signal into the hearing loop system and select the
Third Octave mode on the meter. It will initially start at a 1000Hz center
frequency.
Pressing button “B” will cycle through the frequencies of 100Hz,
200Hz, 500Hz, 1000Hz, 2500Hz and 5000Hz.
IEC 60118-4 Notes and Requirements
The standard as revised notes that within the frequencies of 100Hz to
5000Hz the hearing loop system should equally reproduce all signals. At
a minimum the systems is to be tested at 100Hz, 1KHz and 5KHz.
5
Program RMS/Peak Levels
The second mode is used to set up the hearing loop signal level using an
A-Weighted filter. It is very difficult to set the field strength to an average
of –12dBA as it will constantly vary based on the program used to set up
the system. We will use the PEAK read-ing to confirm that both our
design and equipment meet the IEC specification. Pressing button “B”
resets the PEAK reading.
How to test then adjust the loop system level:
Once the hearing loop system has been installed, play some bandwidth
limited (100Hz to 5KHz) pink noise or 1KHz sine (use the driver
manufacturers recommendation) though the loop system. Walk
throughout the audience area holding your meter vertically.
Note the readings and confirm that the A-RMS level does not vary by
more than ± 3dBA. This lets you know that the perceived signal level in
the hearing aids will be the same, no matter where the person is sitting.
Next: using program audio similar to what is normally used in the facility,
adjust the audio program level to a level just above “normal”. Now turn
on the hearing loop system and adjust the drive level until a –3dBA to
0dBA PEAK level is obtained in the center of the loop. Reset the PEAK
level and confirm this level averages 0 dBA across the audience listening
plane.
IEC 60118-4 Notes and Requirements
The revised standard states that the signal level across the loop area
should not vary by more than ±3dB. Once that is confirmed, the signal
level based on the building's normal program should peak at 0 dB as
referenced to a 400mA/m. This will confirm there is adequate loop
current to produce both the peak and average (average is -12dB or 100ma/
m) signal levels for T-Coil equipped hearing aids.

7
4
Background Noise Level Test
After turning the meter on it comes up in the Background Noise “A
weighted” measurement mode. The display will indicate the RMS reading
on the first line and the MAX reading on the second line. Pressing button
“B” resets the MAX reading.
How to test for background noise:
When testing a new building for background noise, turn on all lights, fans,
sound system and other electrical equipment which is normally on when
the building is in use. The loop system has usually not been installed yet.
however if you are certifying an installation this test is done without the
hearing loop system turned on.
Walk throughout the seating area where the loop system will be used,
holding the meter in a vertical position at the listening plane height. The
important reading will be the MAX reading. However, it is important to
watch the RMS reading. If the MAX reading exceeds –32dBA (readings
above –32dBA will have a lower negative number, for example –30dBA
means there is more background noise than –35dBA), you will need to
document the areas where those higher noise levels are found.
IEC 60118-4 Notes and Requirements
The standard as revised in 2004 notes that any background noise level
lower than –47dBA will result in a excellent signal to noise ratio,
however levels below –32dBA are acceptable and do meet the
requirements of the standard. If the background noise level is above
–32dBA, then the building management should be notified and the
source of the interference found and repaired.
7
Method II - Pink noise signal Cont.
Record the RMS level readings for each of the frequencies`. As in method
I if the level does not vary by more than ±3dB the sys-tem as installed will
meet the IEC specification. This method was requested by the field
engineer so they could run the test with one instrument without
continually adjusting the frequency source. It also makes it easy to
conduct the test in more than one location.
Headphone / Full Spectrum Output
The headphone output jack serves two purposes: First it can be used to
monitor the loop program and gives you an “A Weighted” output signal
that can be listened to with standard 1/8” stereo head-phones. To change
the headphone volume slide the Use/Menu switch to Menu and use the
Mode button to advance to Headphone Volume. Pressing the Select
button advances to the volume adjust screen where the top button raises
the volume and the bottom but-ton lowers it. Once adjusted sliding the
switch back to Use will save the setting.
A full (flat) spectrum output can be sent from this same con-nector which
could then feed a spectrum analyzer. This would show the signal level at
the various frequencies and help to both confirm proper operation and
asses the frequency and level of any interfer-ences.
To switch from “A-Weighted” to Flat: With the meter turned on slide the
Use/Menu switch over to Menu. Press the Mode button “A” once and you
will advance to the Headphone Jack setup screen. Then pressing the
Select button “B” you can choose either A-Weighted or Flat Spectrum.
Menu Adjustments
In the Menu mode, selected by the slide switch, the following items can
be adjusted: Backlight level, headphone output type, headphone volume,
display units (dB, mG, uT), and power timeout (5 to 30, or none.
4
Background Noise Level Test
After turning the meter on it comes up in the Background Noise “A
weighted” measurement mode. The display will indicate the RMS reading
on the first line and the MAX reading on the second line. Pressing button
“B” resets the MAX reading.
How to test for background noise:
When testing a new building for background noise, turn on all lights, fans,
sound system and other electrical equipment which is normally on when
the building is in use. The loop system has usually not been installed yet.
however if you are certifying an installation this test is done without the
hearing loop system turned on.
Walk throughout the seating area where the loop system will be used,
holding the meter in a vertical position at the listening plane height. The
important reading will be the MAX reading. However, it is important to
watch the RMS reading. If the MAX reading exceeds –32dBA (readings
above –32dBA will have a lower negative number, for example –30dBA
means there is more background noise than –35dBA), you will need to
document the areas where those higher noise levels are found.
IEC 60118-4 Notes and Requirements
The standard as revised in 2004 notes that any background noise level
lower than –47dBA will result in a excellent signal to noise ratio,
however levels below –32dBA are acceptable and do meet the
requirements of the standard. If the background noise level is above
–32dBA, then the building management should be notified and the
source of the interference found and repaired.
7
Method II - Pink noise signal Cont.
Record the RMS level readings for each of the frequencies`. As in method
I if the level does not vary by more than ±3dB the sys-tem as installed will
meet the IEC specification. This method was requested by the field
engineer so they could run the test with one instrument without
continually adjusting the frequency source. It also makes it easy to
conduct the test in more than one location.
Headphone / Full Spectrum Output
The headphone output jack serves two purposes: First it can be used to
monitor the loop program and gives you an “A Weighted” output signal
that can be listened to with standard 1/8” stereo head-phones. To change
the headphone volume slide the Use/Menu switch to Menu and use the
Mode button to advance to Headphone Volume. Pressing the Select
button advances to the volume adjust screen where the top button raises
the volume and the bottom but-ton lowers it. Once adjusted sliding the
switch back to Use will save the setting.
A full (flat) spectrum output can be sent from this same con-nector which
could then feed a spectrum analyzer. This would show the signal level at
the various frequencies and help to both confirm proper operation and
asses the frequency and level of any interfer-ences.
To switch from “A-Weighted” to Flat: With the meter turned on slide the
Use/Menu switch over to Menu. Press the Mode button “A” once and you
will advance to the Headphone Jack setup screen. Then pressing the
Select button “B” you can choose either A-Weighted or Flat Spectrum.
Menu Adjustments
In the Menu mode, selected by the slide switch, the following items can
be adjusted: Backlight level, headphone output type, headphone volume,
display units (dB, mG, uT), and power timeout (5 to 30, or none.

8
8
Line In Flat Response Mode:
On the top of the unit is a new feature, audio dBV level. The readings
and the display help determine what level of signal is Coming from the
house feed. Levels between -10dBV and +4dBV are considered to be
line level signals. A poor loop system sound often comes from a very
low level building feed. This input uses the last mode on the FSM and
displays an accurate level which can then be demonstrated to the
building. We advise a level between -10dBV and 0dBV.
To use this feature cycle through the various mode un-til you see Line
In Flat Response on the display. Now connect up the XLR adapter
which has an XLR female on one end and an 1/8” TRS connector on the
other end. If you wish to make up your own adapter use the following
information:
1/8 in TRS connector XLR female connector
Tip ---------------------------------------- Pin 2
Ring ---------------------------------------- Pin 3
Sleeve ---------------------------------------- Pin 1
3
Meter Operation Basics
Turning the meter ON and Off
On - Press and hold button A until the screen lights
Off - Press and continue to hold button “A” until the Powering
Down process is finished and the screen goes dark
Selecting the meter mode
When you press Button “A” it first displays the current mode and the next
press advances to the next meter mode:
1. Background Noise Test with Max indication
2. Signal Strength “A weighted” RMS / Peak
3. Field Strength “Flat” RMS / Max
4. Third Octave Levels 100, 200, 500, 1K, 2.5K, 5KHz
“B” Button functions
•In modes 1 - 3 pressing the “B” button reset the
MAX or PEAK readings
•In mode 4 pressing the “B” button advances the
center frequency of the third octave filters
Sensor Location
Button “A” On/Off & Mode Control
Button “B” Reset/Select &
Frequency Advance
Use / Menu
Switch

9
2
CONTENTS
Meter Design goals 2
Meter Operation Basics 3
Background Noise Tests 4
Program RMS/Peak Levels 5
Evaluating Frequency Response 6
Headphone/Flat spectrum output 7
Line In Flat Response 8
Meter Specifications / Calibration 9
The Field Strength Meter has been designed to ensure that Hearing Loop
Systems be installed and certified to the new IEC 60118-4 standard. When these
standards are met the user experience will be equal wherever they have the
opportunity to use their T-coils.
Our design team interviewed many installers throughout the industry which
resulted in the following design goals:
1. Very accurate and easy to read
2. Simple/straightforward operation
3. Based on the IEC 60118-4 specification
4. Headphone output
5. Flat spectrum output
6. Built to last and be reliable
Meter Design Goals
9
Meter Specifications:
Measurement Range:
True-RMS Crest Factor:
Resolution:
Displayed resolution:
Detection Type:
Sensor:
Direction of
Sensitivity:
Calibration:
Frequency
Response:
A-Weighted:
Power Source:
Headphone
Jack:
Display:
Backlight:
-62dB to +9dB (0dB = 400mA/m)
<3
<0.1dB resolution for levels over –32dB
0.1 dB
True RMS on all features
Pickup Coil
Length-wise of meter’s longer dimension
and Parallel to meter face (Position
noted on Product)
Calibrated at 1,000 Hz (sine) to read 0 dB
at 5.03 mG
Flat ±1dB from 50 Hz to 10,000 Hz Class
2 meter specified in IEC 61672-1
Single 9v Battery & External Power Jack
Output A-Weighted or Flat selectable
16x2 LCD Character Display
Variable brightness blue LED

10

11

12
Local dealer:
UK & ROW
+44 (0) 1732 223900
US & Canada
+1 616 392 3400
www.contacta.co.uk
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