Konsberg SIMRAD CP60 Instruction Manual

PUBLIC
Simrad Echo sounder system
Calibrating the current indicator
Instruction manual
This publication provides you with the basic information required to
calibrate the echo sounder system for current indicator measurements. The
publication is valid for the following products:
• Simrad ES80
• Simrad CP60
The software license controls which product you have. The product name
on the top bar changes accordingly.
Caution
You must never permit the echo sounder system to transmit (ping) when
the ship is in a dry dock. The transducer can be damaged if it transmits
in the open air.
Additional end-user documents related to the echo sounder system can
be found on our website. This includes publications that are translated
into other languages. Selected publications are also provided in IETM
(Interactive Electronic Technical Manual) formats.
• www.kongsberg.com/fisherysounder
110-0002398/A
August 2023 © Kongsberg Maritime AS
Document information
• Product: Simrad echo sounder
• Document: Reference Manual
• Document part number: 110-0002398
• Document ISBN number: 978-82-8066-247-7
• Revision: A
• Date of issue: 23 August 2023
Copyright
The information contained in this document remains the sole property of Kongsberg
Maritime AS. No part of this document may be copied or reproduced in any form or by any
means, and the information contained within it is not to be communicated to a third party,
without the prior written consent of Kongsberg Maritime AS.
Warning
The equipment to which this manual applies must only be used for the purpose for which
it was designed. Improper use or maintenance may cause damage to the equipment and/or
injury to personnel. You must be familiar with the contents of the appropriate manuals
before attempting to operate or work on the equipment.
Kongsberg Maritime disclaims any responsibility for damage or injury caused by improper
installation, use or maintenance of the equipment.
Disclaimer
Kongsberg Maritime AS endeavours to ensure that all information in this document is
correct and fairly stated, but does not accept liability for any errors or omissions.
Support information
If you require maintenance or repair, contact your local dealer. You can also contact us
using the following address: [email protected]. If you need information about
our other products, visit https://www.kongsberg.com/simrad. On this website you will also
find a list of our dealers and distributors.
Kongsberg Maritime AS
www.kongsberg.com
Instruction manual
Table of contents
ABOUT THIS MANUAL .................................................................. 5
INTRODUCTION........................................................................... 7
About current indicator calibration......................................................................................... 7
Calibration summary............................................................................................................... 8
Support information ................................................................................................................ 9
PREPARATIONS ......................................................................... 12
Calibrating the current indicator ........................................................................................... 12
Obtaining and installing the software license for raw data recording .................................. 14
Selecting the location for current indicator calibration......................................................... 15
Configuring the environmental parameters........................................................................... 16
Importing the water temperature from the transducer .......................................................... 17
Configuring the sensor priority for current indicator calibration.......................................... 18
Inserting the installation parameters for the global positioning system (GPS) antenna
and the transducer ............................................................................................................ 20
Defining the file and folder settings for raw data recording ................................................. 24
Defining the bottom detection parameters for the calibration .............................................. 25
Preparing the echo sounder system for current indicator calibration ................................... 27
CALIBRATING THE CURRENT VELOCITY MEASUREMENTS .......... 29
Recording raw data ............................................................................................................... 29
Collecting data for current indicator calibration................................................................... 30
Processing data for current indicator calibration .................................................................. 34
FUNCTIONS AND DIALOG BOXES............................................... 37
Calibration function .............................................................................................................. 37
Calibration Wizard dialog box #1......................................................................................... 38
Calibration Wizard dialog box #2......................................................................................... 39
Calibration Wizard dialog box #3......................................................................................... 40
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Simrad Echo sounder system
4
110-0002398/A
About this manual
About this manual
This publication provides you with the basic information required to calibrate the echo
sounder system for current indicator measurements.
Relevant products
This publication provides you with the basic information required to calibrate the echo
sounder system for current indicator measurements. The publication is valid for the
following products:
• Simrad ES80
• Simrad CP60
The software license controls which product you have. The product name on the top bar
changes accordingly.
Target audience
Calibrating the echo sounder system for velocity measurements ensures that the accuracy is
maintained. Calibration must be taken seriously. To achieve the best results, the calibration
must be planned and done carefully. Due to the nature of the descriptions and the level
of detail provided by this publication, it is well suited for those who are - or wish to be
- expert users.
A good understanding of system functions and controls is essential to fully take advantage
of the functionality provided.
Software version
This publication was created for the following software version: 23.1.
Online information
All end-user manuals provided for operation and installation of your echo sounder system
can be downloaded from our website. This includes publications that are translated into
other languages. Selected publications are also provided in IETM (Interactive Electronic
110-0002398/A
5
Simrad Echo sounder system Instruction manual
Technical Manual) formats. Our website also provides information about other products
from Kongsberg Maritime.
• www.kongsberg.com/fisherysounder
License information
The echo sounder system is a licensed product. To obtain a license, contact your local dealer.
The software license controls which product you have. The product name on the top bar
changes accordingly.
Registered trademarks
Observe the registered trademarks that apply.
Simrad®, SIMRAD® and the Simrad® logo are either registered trademarks, or trademarks
of Kongsberg Maritime AS in Norway and other countries.
Windows® is a registered trademark of Microsoft Corporation in the United States and
other countries.
We want your feedback
We always want to improve our products. We also want our end-user documentation to
be comprehensive and relevant. You can help. Please provide comments, suggestions or
constructive criticism to any of our support offices.
6
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Introduction
Introduction
Topics
About current indicator calibration, page 7
Calibration summary, page 8
Support information, page 9
About current indicator calibration
Calibrating the echo sounder system for current indicator measurements ensures that the
accuracy is maintained. Calibration must be taken seriously. To achieve the best results, the
calibration must be planned and done carefully.
Note
The calibration is important as it will reveal inaccuracies related to the transducer
alignment. The calibration process will detect and measure such inaccuracies, and feed the
information back into the echo sounder system. This will ensure optimal system performance
after calibration.
The calibration of the current indicator functionality is normally done at sea immediately
after leaving dry dock. The calibration process requires you to set up the echo sounder
system with specific settings. Data collection is done while using a specific sailing pattern
that includes "Williamson" turns. A"Williamson" turn means that you shall steer the boat
around with the intent of running alongside the location where the turn pattern was first
initiated.
The actual calibration process is done after the data collection is completed. This processing
is done by the Calibration Wizard. Any adjustments to the echo sounder system files are
done automatically.
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Simrad Echo sounder system Instruction manual
A suitable location must be selected before the calibration can start. The following
requirements must be met:
• Depth: 100 metres (Depth variations between 50 and 250 metres are accepted.)
• Seafloor: Smooth
• Sea conditions: Calm
The quality of the calibration and measurements depend on the quality of the sensors
connected to the echo sounder system. The basic calibration of scale and yaw is made by
comparing the Course Over Ground (COG) and Speed Over Ground (SOG) data from
the current indicator and the GPS.
The information provided by the calibration is entered into the echo sounder software as
operational parameters. This is done automatically.
Calibration summary
The calibration process for velocity measurements involves several steps. Once the
necessary preparations have been made you must collect the calibration data, and then
finally process these.
Prerequisites
The following prerequisites must be met for a successful calibration:
• The relevant current indicator hardware has been installed in the echo sounder user
interface.
• A global positioning system (GPS) is connected to the echo sounder system. The input
from the GPS system is enabled and correct.
• A heading sensor (gyro compass) is connected to the echo sounder system. The sensor is
turned on and in normal operation.
• To prevent interference, all other hydroacoustic instruments must be turned off.
Optional: A motion reference unit (MRU) is connected to the echo sounder system. The
sensor provides data on the KM Binary datagram format.
Procedure
1
8
Make the necessary preparations.
a
Select a suitable location.
b
Make sure that the echo sounder system is fully operational.
c
Collect the relevant environmental parameters.
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Introduction
d
Set up the echo sounder system for velocity measurements calibration.
e
Create a filing system for the RAW files.
The calibration process creates an extensive set of raw data files. You must define
and use a standard naming convention for the data files. Each file name must be
unique. The file name must contain a number of descriptive terms to identify the
main features of the data contained in the file. Such descriptive terms may include:
• Location
• Vessel name
You must also create and use a safe file repository for the data files. A local policy
must be adopted to reference and document any additions to - or deviations from this filing system.
2
Start raw data recording.
3
Start collecting calibration data.
Important
Velocity measurement calibration is always done using previously recorded raw data.
You must collect data from four survey lines. The data from each survey line can be
provided in any number of *.raw files.
4
Stop raw data recording.
5
Save and process the calibration data.
Support information
If you need technical support for your echo sounder system you must contact your local
dealer, or one of our support offices. A list of all our offices and dealers is available on our
website. You can also contact our main support office in Norway.
Norway (main office)
• Company name: Kongsberg Maritime AS / Simrad
• Address: Strandpromenaden 50, N3190 Horten, Norway
• Telephone: +47 33 03 40 00
• Telefax: +47 33 04 29 87
• Website : www.kongsberg.com/simrad
• Email address: [email protected]
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Simrad Echo sounder system Instruction manual
Spain
• Company name: Kongsberg Maritime Spain S.L.U
• Address: Partida Atalayes 20, 03570 Villajoyosa, Spain
• Telephone: +34 966 810 149
• Telefax: +34 966 852 304
• Website : www.kongsberg.com/simrad
• Email address: [email protected]
France
• Company name: Simrad France
• Address: 5 rue de Men Meur, 29730 Guilvinec, France
• Telephone: +33 298 582 388
• Telefax: +33 298 582 388
• Website : www.kongsberg.com/simrad
• Email address: [email protected]
USA
• Company name: Kongsberg Underwater Technology LLC (KUTL) / Simrad Fisheries
• Address: 19210 33rd Ave W, Suite A, Lynnwood, WA 98036, USA
• Telephone: +1 425 712 1136
• Telefax: +1 425 712 1193
• Website : www.kongsberg.com/simrad
• Email address: [email protected]
Canada
• Company name: Kongsberg Mesotech Ltd.
• Address: 1598 Kebet Way, Port Coquitlam, BC, V3C 5M5, Canada
• Telephone: +1 604 464 8144
• Telefax: +1 604 941 5423
• Website : www.kongsberg.com/simrad
• Email address: [email protected]
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110-0002398/A
Introduction
Malaysia
• Company name: Kongsberg Maritime Malaysia Sdn. Bhd
• Address: Unit 27-5 Signature Offices, The Boulevard, Mid Valley City,
Lingkaran Syed Putra, 59200 Kuala Lumpur, Malaysia
• Telephone: +65 6411 7488
• Telefax: +60 3 2201 3359
• Website : www.kongsberg.com/simrad
• Email address: [email protected]
Korea
• Company name: Kongsberg Maritime Korea Ltd
• Address: #1101 Harbor Tower, 113-1, Nampodong 6-Ga, Jung-Gu, Busan 600-046, Korea
• Telephone: +82 51 242 9933
• Telefax: +82 51 242 9934
• Website : www.kongsberg.com/simrad
• Email address: [email protected]
China
• Company name: Kongsberg Maritime China Ltd
• Address: 555 Chuanqiao Road, China (Shanghai) Pilot Free Trade Zone, 201206, China
• Telephone: +86 21 3127 9888
• Telefax: +86 21 3127 9555
• Website : www.kongsberg.com/simrad
• Email address: [email protected]
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Simrad Echo sounder system Instruction manual
Preparations
Topics
Calibrating the current indicator, page 12
Obtaining and installing the software license for raw data recording, page 14
Selecting the location for current indicator calibration, page 15
Configuring the environmental parameters, page 16
Importing the water temperature from the transducer, page 17
Configuring the sensor priority for current indicator calibration, page 18
Inserting the installation parameters for the global positioning system (GPS) antenna and
the transducer, page 20
Defining the file and folder settings for raw data recording, page 24
Defining the bottom detection parameters for the calibration, page 25
Preparing the echo sounder system for current indicator calibration, page 27
Calibrating the current indicator
Calibrating the echo sounder system for velocity measurements ensures that the accuracy is
maintained. The calibration of the current indicator functionality is normally done at sea
immediately after leaving dry dock.
Note
Calibration must be taken seriously. To achieve the best results, the calibration must be
planned and done carefully.
12
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Preparations
The calibration process requires you to set up the echo sounder system with specific settings.
All echo data are stored in RAW files. The actual calibration process is done after the data
collection is completed. This processing is done by the Calibration Wizard. Any adjustments
to the echo sounder system files are done automatically.
Data collection is done while using a specific sailing pattern that includes "Williamson"
turns. A"Williamson" turn means that you shall steer the boat around with the intent of
running alongside the location where the turn pattern was first initiated. The following
operating requirements must be met for each survey line:
• Vessel speed: 5 ‑ 8 knots
• Ping interval: Maximum
• Length: 1 ‑ 4 nautical miles
• Number of pings: Transmit a minimum of 500 pings on each survey line.
A suitable location must be selected before the calibration can start. The following
requirements must be met:
• Depth: 100 metres (Depth variations between 50 and 250 metres are accepted.)
• Seafloor: Smooth
• Sea conditions: Calm
The quality of the calibration and measurements depend on the quality of the sensors
connected to the echo sounder system. The basic calibration of scale and yaw is made by
comparing the Course Over Ground (COG) and Speed Over Ground (SOG) data from
the current indicator and the GPS.
Any adjustments to the echo sounder system files are done automatically. No gain
adjustments are required.
Note
Velocity measurement calibration is always done using previously recorded raw data. You
must collect data from four survey lines. The data from each survey line can be provided in
any number of *.raw files.
The information provided by the calibration is entered into the echo sounder software as
operational parameters.
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
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Simrad Echo sounder system Instruction manual
Obtaining and installing the software license
for raw data recording
To use the echo sounder system with a transceiver you need a valid software license. Before
you can use the echo sounder system you must obtain a "license string" and install it on your
computer. Without a license you will not be able to communicate with the transceiver. You
need a second software license to record raw data. The second software license is time
limited for this specific purpose.
Prerequisites
This procedure is only valid for calibration of your echo sounder system. The software
license for ordinary use of the echo sounder system is installed.
Context
The software license is a 32 character hexadecimal string based on the transceiver’s serial
number. It defines several key parameters that control the functionality and behaviour of
the transceiver(s) you use.
Note
Once you receive your software license string(s), do not lose them. We suggest that you copy
the information into a text file (for example Notepad), and add relevant information. Place
the text file on the computer desktop, and make sure that backup copies are made.
In order to obtain a software license you must contact one of our dealers or distributors. You
can also contact our main support office in Norway.
Procedure
1
2
Obtain the necessary information about your echo sounder system:
a
Transceiver serial number
b
Transducer serial number
Send the information to one of our dealers or distributors.
You can also contact our main support office in Norway. You can use the following
e-mail address:
• [email protected]
Once the software license string(s) have been returned to you (most likely by e-mail), you
can install the licenses into the software.
3
14
Open the Setup menu.
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Preparations
4
On the Setup menu, select Installation.
Observe that the Installation dialog box opens. This dialog box contains a number of
pages selected from the menu on the left side.
5
On the left side of the Installation dialog box, select Software License.
Observe that the Software License page opens.
6
Select Type License String, and type the license string into the dialog box.
If you do not have a computer keyboard connected to your echo sounder system, select
the Keyboard button to open an on-screen keyboard. If you have received the license
string on an electronic format (e-mail or text file), you can copy the string from the
source document and paste it into the Type License String dialog box.
7
Select OK to save the license string and close the Type License String dialog box.
8
Verify that the license string is placed in the Currently active licenses list.
If necessary, select the license string on the left side, and click the arrow button [>] to
move it to the Currently active licenses list.
9
Select Apply and then Close to save all the parameters and close the Installation dialog
box.
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Selecting the location for current indicator
calibration
It is important to find the best possible location for the velocity measurement calibration.
The seabed should be as smooth as possible. You also need calm sea and enough space for
manoeuvring through the recommended sailing pattern.
Context
If you are unfamiliar with the location we recommend doing a trial run to get information
about depth, maximum speed and maximum velocity at the site. Many of the current
velocity measurement problems can be solved by simply moving to a better measurement
site location.
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Simrad Echo sounder system Instruction manual
A
Survey line
B
Minimum depth: 50 m
C
Recommended depth: 100 m
D
Maximum depth: 250 m
Procedure
•
Select a suitable location.
The following requirements must be met:
• Depth: 100 metres (Depth variations between 50 and 250 metres are accepted.)
• Seafloor: Smooth
• Sea conditions: Calm
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Configuring the environmental parameters
Environmental parameters such as salinity, sound speed and water temperature all play
an important part to present accurate echo data. These parameters are also essential for
a successful calibration.
Context
You must correctly set the sound speed through the water to obtain accurate echoes. Several
parameters are required to calculate the correct sound speed value. If these parameters are
unknown, use the default value of 1494 m/s. This is a typical mean value for sound speed in
salt water. In fresh water we suggest that you set the sound speed value to 1450 m/s.
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Preparations
Procedure
1
Open the Setup menu.
2
Select Environment.
3
Open the Water Column page.
4
a
Specify if you work in fresh or salt water.
b
Specify a salinity value that fits you current geographical area.
Select OK to save the settings and close the dialog box.
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Importing the water temperature from the
transducer
The navigational information on the top bar may include a read-out of the current water
temperature. The temperature can be provided by a transducer that offers this functionality.
The water temperature is essential for a successful calibration.
Prerequisites
The echo sounder system is turned on and operates normally.
Context
When you select the Temperature sensor, you will notice that radio buttons replace the
checkbox for some transducers. These enable you to select manual temperature, or a
supported transceiver/transducer as the source for temperature measurements. This choice is
permitted because selected transducers offer temperature measurements. When choosing the
suitable transceiver, a drop-down list with channels supporting these transducer-induced
temperature measurements appears.
Procedure
1
Open the Setup menu.
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Simrad Echo sounder system Instruction manual
2
On the Setup menu, select Installation.
3
On the left side of the Installation dialog box, select Sensor Configuration.
a
Under Sensors, select Temperature.
b
Select Transceiver.
c
Under Transceiver, select the current indicator transducer.
4
At the bottom of the dialog box, select Apply to save your settings.
5
Close the Installation dialog box.
6
Make sure that the temperature is shown on the top bar.
To choose which navigational information to be displayed on the top bar, use the Top
Bar check boxes on the General page. This page is located in the Display Options
dialog box.
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Configuring the sensor priority for current
indicator calibration
With multiple sensors connected to the echo sounder system, many of them will provide the
same datagrams. We cannot expect that these datagrams provide the same information. The
Sensor Configuration page allows you to define a datagram priority, so that the information
from the "most reliable" sensor is used by the echo sounder system. You can also define
manual values in case a sensor is unserviceable, or not installed.
Prerequisites
This procedure assumes that:
• The sensor is physically connected to the Processor Unit using a serial or Ethernet cable.
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Preparations
• The interface port is set up with the correct communication parameters.
• The input from the navigation sensor is defined in the user interface. The relevant
interface parameters and physical location properties for the sensor are defined.
Context
Any information in a datagram, for example, the vessel speed, may be provided in different
datagrams from several sensors. Due to several reasons (environmental conditions,
installation, configuration, accuracy, etc.), the numerical values provided can be different
from one sensor to another.
The term datagram has been defined as follows:
A self-contained, independent entity of data carrying sufficient information to be routed
from the source to the destination computer without reliance on earlier exchanges
between this source and destination computer and the transporting network.
https://tools.ietf.org/html/rfc1594, April 2016
Several sensor are provided on the Sensor Configuration page, one for each type of
information. Select the sensor you wish to configure in the Sensor list. For each type, you
can define a priority sensor by rearranging the datagrams in a list. You can also define
manual values in case a sensor is unserviceable, or not installed.
Tip
The echo sounder system can communicate with several different sensor types. Use the
Sensor Installation page to define which external sensors your echo sounder system will
import information from. You must also specify which datagram formats to use. Open the
Sensor Installation page in the Installation dialog box.
Procedure
1
Open the Setup menu.
2
On the Setup menu, select Installation.
3
On the left side of the Installation dialog box, select Sensor Configuration.
4
Select the sensor you wish to configure in the Sensor list.
5
Select the datagram you want to use
6
Use the two large arrows to move the selected datagram up or down the priority list.
7
Place the following datagrams at the top of each respective list:
• Heading: HDT
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Simrad Echo sounder system Instruction manual
• Position: GGA
• Speed: VTG
Avoid the RMC datagram as position input, as it is less accurate than other position
datagrams.
8
At the bottom of the dialog box, select Apply to save your settings.
9
Repeat for each sensor interface that you need to set up.
10 Close the Installation dialog box.
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Inserting the installation parameters for the
global positioning system (GPS) antenna and
the transducer
The physical location of the global positioning system (GPS) antenna relative to the
transducer is required to allow the echo sounder to show the correct navigational information
in the echo sounder presentation. If you do not have a motion reference unit (MRU)
connected to your echo sounder system, you must establish an alternative origin to be
used during the calibration.
Prerequisites
For accurate ship dimensions you need the detailed vessel drawings. Neither tools nor
instruments are required. The echo sounder system is turned on and operates normally.
Context
When you have several different sensors and transducers on your vessel, and you wish each
of them to provide accurate data, you need to know their relative physical positions. The
antenna of a position sensor is typically mounted high above the superstructure, while a
motion sensor is located close to the vessel’s centre of gravity. Both of these are physically
positioned far away from the transducer, which may be located closer to the bow. Very often,
the information from one sensor depends on data from an other. It is then important that the
relevant measurements are compensated for these relative distances.
The origin is the common reference point where all three axis in the vessel coordinate
system meet. All physical locations of the vessel’s sensors (radar and positioning system
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Preparations
antennas, echo sounder and sonar transducers, motion reference units, etc.) are referenced to
the origin. In most cases, the location of the vessel’s "official" origin has been defined by
the designer or shipyard. This origin is normally identified with a physical marking, and
also shown on the vessel drawings.
If necessary, other origin locations may be defined for specific products or purposes. We
establish an alternative origin on the water line vertically under the GPS antenna for this
calibration.
Procedure
1
2
If you do not have a motion reference unit (MRU) connected to your echo sounder
system:
a
Define an alternate origin at the water level directly under the GPS antenna.
b
Measure the relevant distances between the transducer and the alternative origin.
c
Proceed to step: 3.
If you have a motion reference unit (MRU) connected to your echo sounder system:
a
Use the established Ship origin.
3
Open the Setup menu.
4
On the Setup menu, select Installation.
Observe that the Installation dialog box opens. This dialog box contains a number of
pages selected from the menu on the left side.
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Simrad Echo sounder system Instruction manual
5
On the left side of the Installation dialog box, select Sensor Installation.
Measure the vertical distance from the global positioning system (GPS) antenna
to the water level.
A
Vessel coordinate system alternative origin
B
GPS antenna
a
Under Installed Sensors, select the GPS sensor with the highest priority.
b
Select Edit to change the sensor parameters.
c
Measure the vertical distance from the global positioning system (GPS) antenna
to the water level.
d
Insert the measured value as a Z offset.
This is the alternative origin used during the calibration. The value is negative
because the sensor is physically located over the origin.
22
e
Set X Offset to 0 (zero).
f
Set Y Offset to 0 (zero).
g
Select Save to keep the changes you have made.
h
At the bottom of the page, select Apply to save your settings.
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Preparations
6
On the left side of the Installation dialog box, select Transducer Installation.
A
Vessel coordinate system alternative origin
B
Transducer
a
Under Installed Transducers, select the current indicator transducer.
b
Select Edit to change the transducer parameters.
c
Measure the vertical distance from the transducer face to the water level.
d
Insert the measured value as a Z offset.
The value is positive if the transducer is physically located under the origin.
e
Measure the horizontal distance from the transducer to the origin in parallel with
the vessel's centre line.
f
Insert the measured value as a X offset.
The value is positive if the transducer is physically located in front of the origin.
or:
The value is negative if the transducer is physically located behind the origin.
g
Measure the horizontal distance from the transducer to the origin across the
longitudinal direction of the ship.
h
Insert the measured value as a Y Offset.
The value is positive if the transducer is physically located on the starboard side
of the origin.
or:
The value is negative if the transducer is physically located on the port side of
the origin.
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Simrad Echo sounder system Instruction manual
7
i
Select Save to keep the changes you have made.
j
At the bottom of the page, select Apply to save your settings.
Close the Installation dialog box.
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Defining the file and folder settings for raw
data recording
Use the raw data recording functionality provided by the echo sounder system to save echo
data using the *.raw format. The data are saved on the hard disk, or on an external data
storage device, according to the preferences you have defined.
Context
Before you start recording, make sure that you have defined where you wish to store the
data files. If you wish to save your recorded data on an external hard disk, make sure that
it is connected to the computer.
The File Setup settings control how and where the recorded files are saved on the hard disk, or
on an external storage device. By adding a prefix to the file names you can identify the files
you have recorded during a specific trip. You can also define a maximum size of the files.
Note
The data files will normally become very large. If you wish to record large amounts of data,
make sure that you have enough space on your hard disk. The echo sounder system is not
provided with unlimited disk capacity. We recommend that you save the data files to an
external storage device.
Set up the recording parameters before you start the recording.
Procedure
1
Open the Operation menu.
2
Select Output.
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Preparations
Observe that the Output dialog box opens. This dialog box contains a number of pages
selected from the menu on the left side.
3
In the Output dialog box, select File Setup.
4
On the File Setup page, define the recording parameters.
a
Define the output directory for the recorded files.
b
Define a file name prefix.
c
Define the maximum amount of bytes to be contained in one data file.
Select Maximum for 100 Mb file size.
d
Under Raw Data, select Complex samples (Maximum information).
e
Under Motion Data Recording, select At Sensor Input Rate.
5
At the bottom of the page, select Apply to save your settings.
6
Select OK to close the dialog box.
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Defining the bottom detection parameters for
the calibration
Locating the bottom (seafloor) is important for the echo sounder system. The echo sounder
system needs this bottom lock to locate the correct depth, and to stay on this depth during
operation, even if the depth changes continuously.
Context
The Bottom Detection settings provide separate limits for minimum and maximum water
depth. These depth limits can be used to obtain a bottom lock on the current depth when the
echo sounder system transmits.
Procedure
1
Ensure you have a stable depth reading for all three ADCP beams.
a
Open the Depth information pane.
b
For each beam, verify that the information pane displays a valid depth.
c
Open the ADCP information pane.
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Simrad Echo sounder system Instruction manual
d
Verify that speed over ground (SOG) and course over ground (COG) data is
provided in the information pane.
The measurement is shown as a grey arrow. The length of the arrow indicates the
speed. The tip of the arrow indicates the course. The numerical values are shown
at the bottom of the information pane.
If you are unsure whether this is the case:
2
Open the Active menu.
3
Select Bottom Detection.
4
Set Minimum Depth and Maximum Depth to values fit for the depth at your current
location.
The Minimum Depth setting eliminates all unwanted bottom detections from the
transducer face and down to the depth you have chosen.
Note
If the Maximum Depth value exceeds 1500 metres the ping rate will be reduced.
5
a
Set Minimum Depth to approximately 50% of the expected minimum depth.
b
Set Maximum Depth to approximately 50% more than the expected maximum
depth.
Select OK to save the selected settings and close the dialog box.
Result
If the echo sounder system should loose bottom detection due to air in the water or other
disturbances, it will try to relocate the depth within the minimum and maximum depths you
have defined.
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
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Preparations
Preparing the echo sounder system for current
indicator calibration
Prior to velocity measurement calibration you must check that your echo sounder system
is fully functional.
Prerequisites
Neither tools nor instruments are required.
Context
A fully functional echo sounder system is vital for a successful calibration.
Procedure
1
Make sure that the echo sounder system with all transceivers and transducers are
installed correctly.
2
Turn on the echo sounder system.
3
a
Start pinging.
b
Make sure that the echo sounder system is fully operational on all channels.
On the Main menu:
a
4
5
Set Range to 25% more than the deepest location on your planned calibration lines.
Open the Operation menu.
a
Set Operation to Normal.
b
Select Ping Interval.
c
Set the following value: Maximum
Select the relevant operating parameters in the Normal Operation dialog box.
a
Select Normal Operation.
In the echo sounder parameters table:
a
Set Mode to Passive.
In the ADCP parameters table:
a
Set Mode to Active.
b
Set Pulse Type to LFM-Up.
In LFM Up the transmitted pulse starts using the lower frequency in the range, and
ends with the upper frequency. "LFM" means "Linear Frequency Modulated".
c
Set Power to: 1500 Watts
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Simrad Echo sounder system Instruction manual
6
d
Set Start Frequency to: 195 kHz
e
Set End Frequency to: 205 kHz
f
Set Max Current Speed to: 6 knots
g
Set Depth Cell Size to: 10 metres
h
Clear the checkbox for ACDP in separate ping.
i
Select OK to save the selected settings and close the dialog box.
Open the Active menu.
a
Select ADCP Editing to open the dialog box.
b
Activate Correlation and set the value to 40%.
c
Activate Percent Good and set the value to 40%.
d
Select OK to save the selected settings and close the dialog box.
Related topics
Preparations, page 12
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
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Calibrating the current velocity measurements
Calibrating the current
velocity measurements
Topics
Recording raw data, page 29
Collecting data for current indicator calibration, page 30
Processing data for current indicator calibration, page 34
Recording raw data
Use the raw data recording functionality provided by the echo sounder system to save echo
data using the *.raw format. The data files can be copied or moved to an external storage
device, or to another computer on the network. The recording is controlled by the Record
function.
Prerequisites
Before you start data recording, make sure that you have defined where to store the files. To
define which disks and folders to use to save the data files, use the File Setup page. The File
Setup page is located in the Output dialog box. If you wish to save your recorded data on an
external hard disk, make sure that it is connected to the Processor Unit.
Note
You need a dedicated software license to record raw data. The second software license is
time limited for this specific purpose.
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Simrad Echo sounder system Instruction manual
Procedure
1
Open the Operation menu.
2
To start data recording, open the Record button, and select On.
Alternatively, simply select the red circle on the right side of the button.
The Record indicator on the top bar changes its colour to reflect that recording is active.
3
If you wish to reduce the size of the data file you are recording, click the middle of the
Record button to open it, and select Split File.
The current file is closed, and a new file is automatically started.
4
To stop recording, open the Record button, and select Off.
Alternatively, select the black rectangle on the left side of the button to stop the
recording.
Related topics
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Collecting data for current indicator calibration
Data collection is done while using a specific sailing pattern that includes "Williamson"
turns. You must collect data from four survey lines. The data from each survey line can
be provided in any number of *.raw files.
Prerequisites
The following prerequisites must be met for a successful calibration:
• The relevant current indicator hardware has been installed in the echo sounder user
interface.
• A global positioning system (GPS) is connected to the echo sounder system. The input
from the GPS system is enabled and correct.
• A heading sensor (gyro compass) is connected to the echo sounder system. The sensor is
turned on and in normal operation.
• To prevent interference, all other hydroacoustic instruments must be turned off.
Before data collection can start the following additional prerequisites must be met:
• A suitable location is chosen.
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• All preparations are completed.
• The echo sounder system is fully operational. All the specific settings in the user
interface are selected.
• All raw data recording parameters are specified on the File Setup page.
Context
Data collection is done while using a specific sailing pattern that includes "Williamson"
turns. A"Williamson" turn means that you shall steer the boat around with the intent of
running alongside the location where the turn pattern was first initiated.
• Sail your vessel in a pattern resembling an "L".
• Sail each line in the pattern twice in opposite directions.
• Keep a constant speed.
• Sail each line with a steady course.
The following operating requirements must be met for each survey line:
• Vessel speed: 5 ‑ 8 knots
• Ping interval: Maximum
• Length: 1 ‑ 4 nautical miles
• Number of pings: Transmit a minimum of 500 pings on each survey line.
Note
A specific recording method is required if you do not have a motion sensor (MRU) connected
to your echo sounder system. Without a motion sensor you will get large errors when the
vessel turns. These errors will reduce the quality of the calibration. To rectify this, stop the
recording before each turn, and restart it when the turn has been made.
The result will be four lines of recorded data. This ensures no directional bias is introduced.
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Simrad Echo sounder system Instruction manual
A
Start raw data recording.
B
Line: 1 / Length: 1 ‑ 4 nautical miles
C
Stop the recording. Turn the vessel 180 H
I
degrees.
D
G
Start raw data recording.Start the next
J
survey line.
E
Line: 2
F
Stop the recording. Turn the vessel 90
degrees.
Start raw data recording. Start the
next survey line.
Line: 3 / Length: 1 ‑ 4 nautical miles
Stop the recording. Turn the vessel 180
degrees.
Start raw data recording. Start the
next survey line.
K
Line: 4
L
Stop the recording.
Tip
Annotation markers may be added to the ADCP readings to identify special echoes or
special events. Select Text or Line to allow annotation markers to be shown in the ADCP
readings. You can use these annotation lines to keep track of the survey lines. To activate
the annotation markers, click in the echogram view to make it active. Select Echogram
on the Active menu. Select the Lines tab to open the page. On the Lines page, enable the
annotation markers you wish to see.
Several tooltips can be shown in the echo presentation. When a tooltip is enabled, the cursor
location is detected and a small information box is shown. Use the Ping Number tooltip to
keep track of the number of pings for each survey line. The Tooltip page controls which
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Calibrating the current velocity measurements
tooltips that are shown. Open the Display menu. Select Display Options. Select Tooltip to
open the page. Enable the Ping Number tooltip.
Procedure
1
Make sure that all other hydroacoustic systems on the vessel are turned off.
2
Bring the vessel to the correct speed at the starting point of the first survey line.
3
Start raw data recording.
a
(Line: 1) Sail along the survey line using a steady course and with constant speed.
b
Stop the recording.
c
Turn the vessel 180 degrees.
d
Start raw data recording.
e
(Line: 2) Sail along the survey line using a steady course and with constant speed.
f
Stop the recording.
g
Turn the vessel 90 degrees.
h
Start raw data recording.
i
(Line: 3) Sail along the survey line using a steady course and with constant speed.
j
Stop the recording.
k
Turn the vessel 180 degrees.
l
Start raw data recording.
m
(Line: 4) Sail along the survey line using a steady course and with constant speed.
4
Stop the recording.
5
Stop pinging.
Related topics
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
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Simrad Echo sounder system Instruction manual
Processing data for current indicator
calibration
The Calibration Wizard allows you to process the velocity measurement calibration data and
adjust the calibration values for the echo sounder system. When the processing is finished,
you can save the results, and update the calibration data.
Context
The Calibration Wizard offers a set of dialog boxes to guide you through the calibration
process.
• The first page in the Calibration Wizard allows you to either start a new calibration
process, or return to a previous process by reusing saved data.
• The second page in the Calibration Wizard allows you to select the channel to be
calibrated.
• The third page in the Calibration Wizard allows you to import the calibration data into the
calibration process. The calibration data recorded are processed consecutively. Once the
processing is finished you can save the results, and update the calibration data used by
the echo sounder system.
Procedure
1
Save and process the calibration data.
a
Open the Setup menu.
b
Select Calibration.
c
On the first page in the wizard: Select New calibration from raw data (Real time or
Replay).
d
Select Next to proceed to the next page in the wizard.
e
On the second page in the wizard: Select which channel to calibrate.
Note
Make sure that you select the correct channel for calibration.
f
34
Select Next to proceed to the next page in the wizard.
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Calibrating the current velocity measurements
g
On the third page in the wizard: Select which replay files to use for the calibration.
The velocity measurements used in the calibration process are stored consecutively
as raw data files during the calibration survey.
For Line 1:
1
Select Select File to import all the raw data files.
2
Select Start.
A progress bar is visible during processing. It disappears when the processing is
finished. The following measurements are calibrated:
• Scale
• Yaw
Note
You are not updating the calibration values at this stage.
2
Finalize the calibration process.
a
Select Finish.
b
In the dialog box that opens, select Yes to acknowledge.
c
Select the file name and folder, then save the file.
The calibration data is now saved.
The Save As function allows you to save all data relevant to the calibration. This
function uses a standard operating system dialog box. You are not saving raw
echo data here. This is an XML file containing the information necessary to run
the actual calibration process.
d
Select Finish.
e
In the dialog box that opens, select Yes to acknowledge.
The echo sounder system is updated with the calibration values.
f
In the dialog box that opens, select Yes to acknowledge.
Close the Calibration Wizard dialog box.
3
Resume normal operation.
a
Select ACDP in separate ping to alternate between ADCP and normal echo sounder
transmissions.
b
On the Operation menu, set Operation to Normal.
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Simrad Echo sounder system Instruction manual
Related topics
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
36
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Functions and dialog boxes
Functions and dialog boxes
Topics
Calibration function, page 37
Calibration Wizard dialog box #1, page 38
Calibration Wizard dialog box #2, page 39
Calibration Wizard dialog box #3, page 40
Calibration function
The purpose of the Calibration button is to start the "wizard" that takes you through the
calibration process.
Prerequisites
Calibration can only be started with the echo sounder system in either Normal or Replay
mode.
How to open
This function is opened from the Setup menu.
Description
Calibrating the echo sounder system for velocity measurements ensures that the accuracy is
maintained. The calibration of the current indicator functionality is normally done at sea
immediately after leaving dry dock.
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Simrad Echo sounder system Instruction manual
Velocity measurement calibration is always done using previously recorded raw data. Data
collection is done while using a specific sailing pattern that includes "Williamson" turns.
A"Williamson" turn means that you shall steer the boat around with the intent of running
alongside the location where the turn pattern was first initiated. All echo data are stored in
RAW files. The actual calibration process is done after the data collection is completed.
The basic calibration of scale and yaw is made by comparing the Course Over Ground
(COG) and Speed Over Ground (SOG) data from the current indicator and the GPS.
Note
Velocity measurement calibration is always done using previously recorded raw data. You
must collect data from four survey lines. The data from each survey line can be provided in
any number of *.raw files.
The information provided by the calibration is entered into the echo sounder software as
operational parameters. This is done automatically.
Calibration Wizard
The Calibration Wizard offers a set of dialog boxes to guide you through the calibration
process.
1
The first page in the Calibration Wizard allows you to either start a new calibration
process, or return to a previous process by reusing saved data.
2
The second page in the Calibration Wizard allows you to select the channel to be
calibrated.
3
The third page in the Calibration Wizard allows you to import the calibration data into
the calibration process.
Related topics
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Calibration Wizard dialog box #1
The first page in the Calibration Wizard allows you to either start a new calibration process,
or return to a previous process by reusing saved data.
Prerequisites
The Calibration Wizard can only be opened from within the calibration process.
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Functions and dialog boxes
How to open
To open the Calibration Wizard, place the echo sounder system in either Normal or Replay
mode, then select Calibration on the Setup menu.
Description
The following options are available:
New calibration from raw data (Real time or
Replay)
Select this option to start a new
calibration process from scratch. The
calibration is always done using recorded
data, and not from "live" data.
Reprocess previous calibration data
Select this option when you have a
previous XML file with calibration data
available for reprocessing.
If you add a new transducer to a previously
calibrated echo sounder system, this new channel must be calibrated. If a calibrated
transducer is moved from one transceiver to another, you must still calibrate the transducer on
the "receiving" transceiver. If a calibrated transducer is removed, and then later reconnected
to the same transceiver, the calibration data exist. A new calibration is not required.
Related topics
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Calibration Wizard dialog box #2
The second page in the Calibration Wizard allows you to select the channel to be calibrated.
Prerequisites
The Calibration Wizard can only be opened from within the calibration process.
How to open
To open the Calibration Wizard, place the echo sounder system in either Normal or Replay
mode, then select Calibration on the Setup menu.
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Simrad Echo sounder system Instruction manual
On the first page in the wizard: Select New calibration from raw data (Real time or Replay).
Select Next. This opens page 2 in the wizard.
Description
Select which channel to calibrate. In
this context, the term channel is used
as a common term to identify the
combination of transceiver, transducer
and operating frequency. The velocity
measurement channels are by default
named ADCP.
Important
Velocity measurement calibration is
always done using previously recorded
raw data.
Enable the checkbox label if you want to use factory transducer parameters before
calibration. To use the last used transducer parameters, simply continue.
Related topics
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
Calibration Wizard dialog box #3
The third page in the Calibration Wizard allows you to import the calibration data into the
calibration process. The calibration data recorded are processed consecutively. Once the
processing is finished you can save the results, and update the calibration data used by
the echo sounder system.
Prerequisites
The Calibration Wizard can only be opened from within the calibration process.
How to open
To open the Calibration Wizard, place the echo sounder system in either Normal or Replay
mode, then select Calibration on the Setup menu.
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Functions and dialog boxes
On the first page in the wizard: Select New calibration from raw data (Real time or Replay).
Select Next. This opens page 2 in the wizard.
On the second page in the wizard: Select which channel to calibrate. Select Next. This
opens page 3 in the wizard.
Description
The velocity measurements used in the calibration process are stored consecutively as
raw data files during the calibration survey.
For Line 1:
1
Select Select File to import all the raw data files.
2
Select Start.
A progress bar is visible during processing. It disappears when the processing is finished.
The following measurements are calibrated:
• Scale
• Yaw
Details
Select File
Select Select File to import the relevant raw data file(s).
Start
Select Start to calculate the calibration values. A progress bar is visible during
processing. It disappears when the processing is finished.
Ping Count
Ping Count displays the number of pings that are processed. The number will
accumulate as you process the calibration data for the relevant survey line.
Scale
The basic calibration of scale and yaw is made by comparing the Course Over Ground
(COG) and Speed Over Ground (SOG) data from the current indicator and the GPS.
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Simrad Echo sounder system Instruction manual
Scale refers to the ratio of the Speed Over Ground (SOG) data from the GPS system
versus the measurement from the current indicator. Ideally this value will be close to 1.
Yaw
Yaw presents the adjustment values for the vessel's rotation about the vertical axis,
that is the change of heading. The value is based on the pings processed by the
calibration process.
Pitch
Pitch presents the adjustment values for the horizontal rotation around an axis going
from side to side of the vessel. The value is based on the pings processed by the
calibration process. A value is only provided if a motion reference unit (MRU) is
connected to the echo sounder system.
Roll
Roll presents the adjustment value for the horizontal rotation around the axis from
the bow to the stern of the vessel. The value is based on the pings processed by the
calibration process. A value is only provided if a motion reference unit (MRU) is
connected to the echo sounder system.
Average Scale
The basic calibration is made by comparing the Course Over Ground (COG) and
Speed Over Ground (SOG) data from the ADCP and the GPS. Scale refers to the ratio
of the Speed Over Ground (SOG) data from the GPS system versus the measurement
from the ADCP. This is the average value from all the survey lines. Ideally this value
will be close to 1.
Average Yaw
Yaw presents the adjustment values for the vessel's rotation about the vertical axis, that
is the change of heading. The value is based on the pings processed by the calibration
process. This is the average value from all the survey lines.
Average Pitch
Pitch presents the adjustment values for the horizontal rotation around an axis going
from side to side of the vessel. The value is based on the pings processed by the
calibration process. This is the average value from all the survey lines.
Average Roll
Roll presents the adjustment value for the horizontal rotation around the axis from
the bow to the stern of the vessel. The value is based on the pings processed by the
calibration process. This is the average value from all the survey lines.
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Functions and dialog boxes
Related topics
Calibrating the current velocity measurements, page 29
Functions and dialog boxes, page 37
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