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IMPACT SUBSEA

 

INNOVATIVE UNDERWATER PRODUCTS

 

 

 

 

          

www.impactsubsea.com

   

       

 

 

Document No: 

0000.1991 | 

Version No: 

1.6 | 6

th

 October 2020

 

 

 

 

 

 

23

 

Acoustics: 

 

 

Shown above: ISS360 Acoustic Parameters Settings

 

 

In the above window, the acoustic settings of the sonar can be adjusted.

 

 

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. 

 

 

The one value on this page which will require to be adjusted for new location deployments 
is the speed of sound setting.  An accurate speed of sound should be entered to ensure that 
all range readings are correct. 

 

 

Once configured, clicking the OK tick button will save the settings to the sonar firmware. 

 

 

 

 

 

 

 

 

Summary of Contents for ISS360

Page 1: ...ct Subsea Ltd Company Number SC498003 Registered in Scotland Registered Office Unit 10 Castle Street Castle Road Industrial Estate Ellon AB41 9FR UK E info impactsubsea co uk W www impactsubsea com IS...

Page 2: ...1 7 Establishing Communications 10 3 1 8 Connector Mating 10 3 1 9 Connector Cleaning 10 3 2 Installation Location 11 3 2 1 Acoustics Image Performance 11 3 2 2 Alignment with Vehicle 12 3 2 3 Magnet...

Page 3: ...UNDERWATER PRODUCTS www impactsubsea com Document No 0000 1991 Version No 1 6 6th October 2020 3 6 2 3 Noise Level NL 30 6 2 4 Directional Index DI 31 6 2 5 Detection Threshold DT 31 7 0 Warranty 32...

Page 4: ...lly the ISS360 can be provided with an integrated Attitude and Heading Reference System AHRS This provides highly stable Heading Pitch and Roll readings The ISS360 imaging sonar utilises a broadband c...

Page 5: ...ER PRODUCTS www impactsubsea com Document No 0000 1991 Version No 1 6 6th October 2020 5 2 0 Specification 2 1 Overview Above ISS360 Titanium 2 2 Dimensions The dimensions of the ISS360 sonar are show...

Page 6: ...Beam Angle 23 Vertical 2 2 Horizontal Heading Signalling CHIRP Continuous Wave Accuracy 1 Step Size 0 225 0 45 0 9 1 8 3 6 7 2 Resolution 0 1 Scan Angle 360 Continuous or Sector Scan 2 4 Communicatio...

Page 7: ...SS connector as standard This will mate to a SubConn MCIL8F connector cable assembly 3 1 1 Connector Pin Out The standard connector pinout is provided below Male Connector on ISS360 Sonar Pin Functio...

Page 8: ...12 to 65V 3 1 3 Serial Interface Both the RS232 and RS485 interfaces are isolated from the supply and the sonar has in line fused protection on the serial lines A prolonged transient voltage on these...

Page 9: ...a com Document No 0000 1991 Version No 1 6 6th October 2020 9 3 1 5 RS485 Wiring The digital 0V must be connected on an RS485 interface otherwise the voltage potential between one of the A or B lines...

Page 10: ...ed configuration 3 1 8 Connector Mating When mating the cable to the SubConn connector to maximise the life of the connector it is important to observe the following Always apply grease before mating...

Page 11: ...he sonar contains a single transducer mounted to a stepper motor This transducer rotates through a 360 rotation in order to provide a 360 image of the sonar s surroundings When operating with a centra...

Page 12: ...the boot end facing downwards In this installation orientation ensure that the Sonar is Inverted box is ticked in the seaView ISS360 Orientation settings window This will automatically correct the ima...

Page 13: ...he ISS360 ensure excessive mounting force is not used 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 ISS360 hous...

Page 14: ...mpactsubsea com seaView software works with all of the Impact Subsea range of underwater sensors Single sensors can be operated or multiple sensors together The ISS360 sonar will operate with seaView...

Page 15: ...been detected via an Ethernet connection and has an IP address of 192 168 1 200 Should a sonar be connected after running the software the search button should be pressed to search for the newly conn...

Page 16: ...f 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 t...

Page 17: ...o be adjusted This allows the sonar image to be adjusted to suit the requirements of the application at hand Weaker targets can be removed from screen by raising the lowest red handle Higher contrast...

Page 18: ...can be adjusted CHIRP o Turn CHIRP signalling On Off or set to Auto based on range input Speed Quality Slider o The resolution and scanning speed of the sonar can be set here o Speed Moving towards S...

Page 19: ...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 Fly...

Page 20: ...alues which can physically be shown on screen at any one time If operating on a low baud rate serial connection and also using a very high resolution monitor you may wish to disable the Auto feature a...

Page 21: ...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 RS2...

Page 22: ...e connector downwards If the boot end of the sonar is facing downwards with the connector upwards this is considered to be inverted in which case the Sonar is Inverted box should be checked If the son...

Page 23: ...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 Th...

Page 24: ...ter clockwise The Clear Image button will erase all sonar image data currently on the display providing a blank sonar screen The Display Options button has been covered previously in this manual The R...

Page 25: ...will put the application into full screen mode The View Layout button will allow multiple sonars to be displayed on screen at the same time instead of having individual tabs for each sonar Shown above...

Page 26: ...d in fresh water to remove particles and salt deposits If required a light detergent such as that used to clean household dishes can be used DO NOT USE SOLVENTS TO CLEAN THE UNIT Following rinsing the...

Page 27: ...sten Step processes a 2D top down image is produced on screen There are a number of books and resources available online which explore sonar image interpretation in detail It is assumed the user of th...

Page 28: ...perature salinity pressure However for the purpose of this explanation we will assume a speed of sound of 1 500m s If an acoustic pulse takes 0 1 second to return to the ISS360 sonar after being sent...

Page 29: ...ential The Sonar Equation is a fundamental equation which is at the heart of all hydro acoustic systems SL TL NL DI DT SL Source Level TL Transmission Loss NL Noise Level DI Directional Index DT Detec...

Page 30: ...Level NL Noise level is environment specific which can often be the reason for acoustic systems experiencing different levels of performance in different locations or even when operating at different...

Page 31: ...operation of the unit 6 2 5 Detection Threshold DT The Detection Threshold is a property of the acoustic system It is defined as the minimal signal to noise ratio required in order to detect the acou...

Page 32: ...Impact Subsea Ltd will either replace or repair the Product at no charge using new or refurbished replacement parts Replacement or repair is at the discretion of Impact Subsea Ltd How long does the co...

Page 33: ...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 When contacting our Support team please...

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