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IMPACT SUBSEA
INNOVATIVE UNDERWATER PRODUCTS
Flooded Member Detection System
Installation & Operation Manual
T. +44 (0) 1224 460 850
E. info@impactsubsea.co.uk
W. www.impactsubsea.com
ISFMD
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
1.2
rd
23
April 2020
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Table of Contents
Summary of Contents for ImpactSubsea ISFMD
- Page 1 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com ISFMD Flooded Member Detection System Installation & Operation Manual Revision Number: Date April 2020 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
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 1.0 Introduction ............................2 2.0 Specification ............................3 2.1 Probe Overview ..........................3 2.2 Dimensions ............................. 3 2.2.1 Probe: ............................3 2.2.2 Probe Mount: ..........................4 2.3 Acoustic, Heading, Attitude & Temperature ................. 5 2.4 Communications, Power & Physical ....................5 3.0 System Components... -
Page 3: Introduction
INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 1.0 Introduction Suitable for Diver or ROV use the ISFMD system provides the most advanced and reliable acoustic Flooded Member Detection system available today. Utilising a detection probe with broadband composite transducer technology, together with an advanced digital acoustic engine ensures the highest level of accuracy and reliability in readings. -
Page 4: Specification
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 2.0 Specification 2.1 Probe Overview 2.2 Dimensions 2.2.1 Probe: All dimensions are in mm. Document No: 0000.1913 | Version No: 1.2 | 23 April 2020... -
Page 5: Probe Mount
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 2.2.2 Probe Mount: Top Down View Side View Front View All dimensions are in mm. Document No: 0000.1913 | Version No: 1.2 | 23 April 2020... -
Page 6: Acoustic, Heading, Attitude & Temperature
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 2.3 Acoustic, Heading, Attitude & Temperature Acoustic Attitude Frequency 500kHz Pitch Range ± 90° Roll Range ± 180° Range 0.1 to 30m (Maximum range Accuracy 0.2° dependant on member type) Resolution Resolution 0.1° Beam Angle 6°... -
Page 7: System Components
3.0 System Components 3.1 Probe The ISA500 probe is the core sensor used in the ISFMD system. The ISA500 is a hydro-acoustic device, which transmits pulses of sound and detects corresponding returning echoes. The probe operates at an acoustic frequency of 500kHz. The probe utilises a broadband composite transducer and electronics together with an advanced digital acoustic engine. -
Page 8: Topside Interface Box
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 3.4 Topside Interface Box A topside interface box is provided to enable quick connection of all system components. The supplied cable reel is terminated with a topside connector to connect to the 'ISA500' port. -
Page 9: Hardware Setup
Connect USB Cable to 'USB' Port. Connect other end of USB cable to • Connect Power Supply cable to 'PWR' port The ISFMD system is now physically connected and ready for operation. Document No: 0000.1913 | Version No: 1.2 | 23 April 2020... -
Page 10: Rov Deployed System
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 4.2 ROV Deployed System For ROV installation, the ISA500 Probe should be mounted in its protective holder as per section 4.1 and held in the ROV manipulator. The ISA500 is fitted with a SubConn MCBH8M-SS connector as standard. This will mate to a SubConn MCIL8F connector/cable assembly. -
Page 11: Power
4.2.3 Serial Interface The ISA500 serial communications protocol can be set to either RS232 or RS485. For use with the ISFMD Topside Interface box, the unit must be configured to RS485 communications. The RS232 and RS485 interface is isolated from the supply and has in-line fused protection on the serial lines. -
Page 12: Rs485 Wiring
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 4.2.5 RS485 Wiring The RS485 termination resistor is software selectable. The digital 0V must be connected on an RS485 interfaces, otherwise the voltage potential between one of the A+ or B- lines to ground could reach a damaging level 4.2.6 Establishing Communications... - Page 13 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 4.2.7 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. Molykote 44 Medium grease must be used.
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Page 14: Software Installation
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 5.0 Software Installation The seaView software requires a desktop PC or laptop running Windows 7, 8 or 10 operating system. For optimum performance, a wide screen monitor should be used. To install and run the software, please do the following: •... -
Page 15: Conducting An Fmd Test
6.0 Conducting An FMD Test Having completed the hardware setup (Section 4.0) and software setup (Section 5.0) the ISFMD system is now ready for operation. For certainty of operation, it is recommended that prior to testing members subsea, a known flooded member/non flooded member should be checked to ensure system is setup correctly and fully operational. - Page 16 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com Step 4: Add reading to on-screen display of Member • Click 'Add' to record a reading on the Member and to include in the final report. • The distance along the member/pipe that the reading was taken (in meters) can be entered at this point.
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Page 17: Understanding Fmd Readings
(under 'Setup' in the seaView FMD application). Please note, it is the responsibility of the user of the ISFMD system to satisfy him/herself as to the validity of readings. Document No: 0000.1913 | Version No: 1.2 | 23... - Page 18 INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com In conjunction with the reading window, which shows the reading the ISFMD system has used for range measurement, all other detected echoes can be viewed in the display to the left: Echo Detected at Member Diameter On the above display, the area where a return is expected to be received if a member is flooded is highlighted in blue.
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Page 19: Servicing
INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 7.0 Servicing The ISFMD system is a highly robust measurement device. The system has been designed to require minimal maintenance, and as such there are no user serviceable components within the system. The ISA500 probe should be rinsed in fresh water after each use to remove salt deposits. If required a light detergent (such as that used to clean household dishes) can be used. -
Page 20: Theory Of Operation
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 8.0 Theory of Operation 8.1 Flooded Member Detection - Basic Principles This section examines how Flooded Member Detection is achieved by the system. For the purpose of detecting Flooded Members, the ISA500 is a hydro-acoustic device, which utilises sound pressure waves in order to determine the presence of water or liquid in a member. - Page 21 IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com For example, if an acoustic pulse takes 0.001 seconds to return to the ISA500 after being sent, we can calculate its round-trip travel distance as: Distance = Speed x Time = 1,500 x 0.001 = 1.5m...
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Page 22: Common Questions & Answers
A. All marine growth must be removed prior to the ISA500 probe being coupled to the member under test. The ISFMD system operates through the use of acoustics and thus requires a good acoustic coupling to be made with the member under test. - Page 23 The system should then be tested against a known flooded/unflooded member in question to verify settings. Q. The ISFMD system appears to be for use only underwater. Can I use this system in air? A. The ISFMD system has been designed to work underwater, using the water as a coupling medium to the member to be tested.
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Page 24: Warranty
INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 10.0 Warranty The ISFMD System is supplied with a Limited Warranty. This warranty applies only to the ISFMD System and only if the ISFMD system is purchased from Impact Subsea Ltd or recognised distributor. What does the limited warranty cover? This Limited Warranty covers any defects in material or workmanship under normal use during the Warranty Period. -
Page 25: Technical Support
IMPACT SUBSEA INNOVATIVE UNDERWATER PRODUCTS www.impactsubsea.com 11.0 Technical Support Should you require technical support for your ISFMD System, our Support team can be contacted as follows: T. +44 (0) 1224 460 850 E. support@impactsubsea.co.uk W. www.impactsubsea.com An out of hours emergency number is available via the Impact Subsea website.
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