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IMPACT SUBSEA
INNOVATIVE UNDERWATER PRODUCTS
Installation & Operation Manual
T. +44 (0) 1224 460 850
E. info@impactsubsea.co.uk
W. www.impactsubsea.com
ISS360 & ISS360HD
Imaging Sonar
Revision Number:
Date
I
mpact Subsea Ltd, Company Number: SC498003, Registered in Scotland, Registered
Office: Unit 10, Castle Street, Castle Road Industrial Estate, Ellon, AB41 9FR, UK
www.impactsubsea.com
2.1
th
26
September 2022
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Table of Contents
Related Manuals for Impact Subsea ISS360HD
Summary of Contents for Impact Subsea ISS360HD
- Page 1 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com ISS360 & ISS360HD Imaging Sonar Installation & Operation Manual Revision Number: Date September 2022 T. +44 (0) 1224 460 850 mpact Subsea Ltd, Company Number: SC498003, Registered in Scotland, Registered Office: Unit 10, Castle Street, Castle Road Industrial Estate, Ellon, AB41 9FR, UK E.
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Page 2: Table Of Contents
2.2 Dimensions ..........................5 2.3 Acoustic & Attitude ........................6 2.4 Communication, Power & Physical .................... 6 2.5 Acoustic Beam Pattern ....................... 7 3.0 ISS360HD Specification ........................8 3.1 Overview ............................ 8 3.2 Dimensions ..........................8 3.3 Acoustic & Attitude ........................9 3.4 Communication, Power &... - Page 3 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 5.1.6 Other Settings & Logging ....................28 5.1.7 Hot Keys ..........................29 6.0 Maintenance & Servicing ......................30 7.0 Theory of Operation ........................31 7.1 Sonar – Basic Principles ......................31 7.2 The Sonar Equation ........................33 7.2.1 Source Level (SL) .......................
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Page 4: Introduction
The ISS360 is a new generation of imaging sonar, providing exceptionally fast scanning capability. As a very compact imaging sonar, the ISS360 is an ideal navigation and obstacle avoidance sonar for the smallest to the largest underwater vehicles. The ISS360HD offers a further enhancement on image quality and range capability. -
Page 5: Iss360 Specification
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 2.0 ISS360 Specification 2.1 Overview Above: ISS360 Sonar 2.2 Dimensions The dimensions of the ISS360 sonar are shown below: All dimensions are in mm. Document No: 0000.1991 | Version No: 2.1 | 26 September 2022... -
Page 6: Acoustic & Attitude
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 2.3 Acoustic & Attitude Acoustic Attitude Frequency 700kHz Centre Pitch Range ± 90° 650 to 750kHz Optimal Bandwidth 600 to 900kHz Bandwidth Available Roll Range ± 180° Range 0.15 to 90 meters (4,000m depth rated unit) Accuracy 0.2°... -
Page 7: Acoustic Beam Pattern
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 2.5 Acoustic Beam Pattern The ISS360 sonar produces an acoustic fan beam which has been configured to provide optimal coverage for the purposes of ROV navigation, obstacle avoidance and identification. Document No: 0000.1991 | Version No: 2.1 | 26... -
Page 8: Iss360Hd Specification
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 3.0 ISS360HD Specification 3.1 Overview Above: ISS360HD Sonar 3.2 Dimensions The dimensions of the ISS360HD sonar are shown below: All dimensions are in mm. Document No: 0000.1991 | Version No: 2.1 | 26 September 2022... -
Page 9: Acoustic & Attitude
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 3.3 Acoustic & Attitude Acoustic Attitude Frequency 750kHz Centre Pitch Range ± 90° 600 to 900kHz Bandwidth Available Roll Range ± 180° Range 0.45 to 100 meters Accuracy 0.2° Range 2.5mm (300kHz CHIRP) Resolution 0.1°... -
Page 10: Acoustic Beam Pattern
3.5 Acoustic Beam Pattern The ISS360HD sonar produces an acoustic fan beam which has been configured to provide optimal coverage for the purposes of ROV navigation, obstacle avoidance and target identification. The ISS360HD has a narrow horizontal beam (1°) by a wide vertical beamwidth (30°). -
Page 11: Connector Pin Out
RS232 RX & RS485 B- Red/Black 4.1.2 Power The ISS360 & ISS360HD Sonar power input is polarity protected and can accept a DC voltage from 12 to 65V. Do not attempt to power the ISS360 with an input voltage out with this range. -
Page 12: Serial Interface
4.1.3 Serial Interface The ISS360 & ISS360HD sonars have in-line fuse protection on the serial lines. A prolonged transient voltage on these lines will blow the surface mount fuses which will require replacement by Impact Subsea or an approved service agent. -
Page 13: Rs485 Wiring
Note: The ISS360 & ISS360HD cannot be powered over an ethernet connection. Any attempt to use a power over ethernet connection will result in permanent damage to the ISS360/ISS360HD. Document No: 0000.1991 | Version No: 2.1 | 26 September 2022... -
Page 14: Establishing Communications
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 4.1.7 Establishing Communications The default dispatch serial settings are RS232, 115,200, N81. If the sonar is tilted from vertical to upside down at least 3 times within the first 10 seconds of power up then it will temporarily configure the serial interface to RS232, 9600, N81 and output an ASCII message displaying the settings. -
Page 15: Connector Cleaning
When operating with a central frequency of 700kHz, the ISS360 has a 23° horizontal beam (or 30° if using the ISS360HD). It is therefore important to ensure that no part of the sonar mount/vehicle passes within this 23° or 30° beam. If it does, the part will be shown on the sonar image and may reduce range performance. -
Page 16: Alignment With Vehicle
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 4.2.2 Alignment with Vehicle The standard installation is to install the ISS360 sonar with the boot end facing upwards, connector facing downwards. The sonar should be installed so that the top of the boot is perfectly level. -
Page 17: Mounting
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 4.3 Mounting The sonar should be mounted using clamps around the mid-section of the body. The body has a 20mm recess to allow a clamp to be tightened securely around the unit. A non-metallic clamp should be used. In the event this is not possible, effort should be made to electrically isolate the clamp from the sonar housing. -
Page 18: Operation
5.0 Operation 5.1 Use with seaView Software Shown above: seaView ISS360 Sonar Application The sonar is supplied with the intuitive Impact Subsea seaView software on USB. The latest version of seaView can be downloaded from www.impactsubsea.com seaView software works with all of the Impact Subsea range of underwater sensors. Single sensors can be operated or multiple sensors together. -
Page 19: Initial Connection
Left click once on the sonar then click on the ‘ISS360’ app at the left-hand side of the screen. This will open the ISS360 sonar application and the sonar will automatically start to scan. Both the ISS360 and ISS360HD make use of the same application. Document No: 0000.1991 | Version No: 2.1 | 26... -
Page 20: Iss360 Sonar Application
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 5.1.2 ISS360 Sonar Application Shown above: ISS360 Application Provided in this section is an overview of the key features of the application: Colour Pallet: To the left of the screen is the colour pallet selector, clicking on this will allow you to select various colour pallet options for the sonar data to be rendered in. - Page 21 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com Image Threshold & Contrast: Using the red handle on the upper and lower part of the colour pallet allows the data threshold and contract to be adjusted. This allows the sonar image to be adjusted to suit the requirements of the application at hand: •...
- Page 22 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com Regular Access Controls: Along the lower part of the screen, the controls which require most regular access are provided: • Gain Slider o The amount of amplification of the raw signal can be adjusted here •...
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Page 23: Iss360 Operational Settings
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 5.1.3 ISS360 Operational Settings Shown above: ISS360 Setup Clicking the Setup icon will allow access to the operational settings of the sonar. Shown above: ISS360 Setup In this tab, features such as the scan angle of the sonar (full 360 or user defined sector scan) can be configured. - Page 24 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com Note: Bins are the number of samples that the sonar sends to the seaView software for each ‘Ping’ that is makes. When set to ‘Auto’ seaView will read the number of pixels present on your display screen and request the sonar to send one sample per pixel.
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Page 25: Iss360 Sensor Settings
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 5.1.4 ISS360 Sensor Settings Clicking on the settings icon will allow configuration of the core settings of the sonar. These settings are divided into three pages: Connection, Orientation and Acoustics. Connection: Shown above: ISS360 Connection Settings In this window the serial mode of the sonar (RS232 or RS485) can be configured along with the desired baud rate. - Page 26 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com Orientation & Magnetic Calibration: Shown above: ISS360 Orientation Settings In this window the orientation of the sonar can be defined. Note: It is standard to have the boot end of the sonar orientated upwards (with the connector downwards).
- Page 27 It is recommended that these settings are only adjusted by a user with a high degree of experience with the ISS360 or if advised by an Impact Subsea Engineer. The default settings will provide optimal performance in the majority of applications.
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Page 28: Other Settings & Logging
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 5.1.6 Other Settings & Logging On the left-hand side are further controls for the sonar: The functions of the Settings and Setup buttons have been covered previously in this manual. The Run/Pause button will stop the sonar scanning. Pressing again will resume scanning. -
Page 29: Hot Keys
Shown above: Two ISS360 Sonar displays Clicking on the Impact Subsea logo will take you to the Impact Subsea website – ideal for downloading the latest version of the seaView software or accessing other technical information. -
Page 30: Maintenance & Servicing
The sonar should be stored in its original case, in a cool, dry place. It is recommended that the sonar be returned to Impact Subsea Ltd, on an annual basis to have a ‘health check’ and service conducted. Document No: 0000.1991 | Version No: 2.1 | 26... -
Page 31: Theory Of Operation
The ISS360 sonar emits a pulse of sound which is 23° high and 2.2° wide. The ISS360HD sonar emits a pulse of sound which is 30° high and 1° wide. Any item which falls within this pulse of sound will be detected and plotted on screen. - Page 32 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com The distance the acoustic pulse has travelled can then be calculated by this simple equation: Distance = Speed x Time In water, the speed of sound is typically around 1,500 meters per second. This is influenced by various factors (temperature, salinity &...
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Page 33: The Sonar Equation
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 7.2 The Sonar Equation Any equipment which relies on underwater acoustics for ranging purposes falls into the category of a Sonar, hence the operation is governed by the 'Sonar Equation'. A clear understanding of this Equation is essential in the design of any acoustic equipment, and is useful for those wishing to utilise acoustic equipment to its full potential. -
Page 34: Transmission Loss (Tl)
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 7.2.2 Transmission Loss (TL) As the acoustic pulse propagates through the water, it experiences spreading. This causes the energy of the signal to be dispersed over an ever-increasing area, diminishing the energy at any specific point as distance increases. -
Page 35: Directional Index (Di)
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 7.2.4 Directional Index (DI) The Directional Index gives a reduction in noise level, governed by the properties of the transmit/receive transducer. An omni-directional transducer will theoretically pick-up noise from all directions. A directional transducer will hear noise from only one direction. Thus, a method of reducing the apparent background noise is to utilise a highly directional transducer. -
Page 36: Warranty
INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 8.0 Warranty The ISS360 & ISS360HD Sonar is supplied with a Limited Warranty. This warranty applies solely to the ISS360 & ISS360HD Sonar and only if purchased directly from Impact Subsea Ltd. What does the limited warranty cover? This Limited Warranty covers any defects in material or workmanship under normal use during the Warranty Period. -
Page 37: Technical Support
E. support@impactsubsea.co.uk W. www.impactsubsea.com An out of hours emergency number is available via the Impact Subsea website. Utilising the above email address will ensure that a number of support engineers are copied into your support request, and will ensure a prompt response.
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