Page 1 Kongsberg EM 304 MKII NEL Multibeam Echo Sounder Installation manual Image: Black Mud Canyon, courtesy of Ifremer. Kongsberg product: EM 304 bathymetry. Location: North Atlantic Ocean. Depth:200 - 4100 m 480282/A June 2021 © Kongsberg Maritime AS...
Page 2 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 Kongsberg Maritime’s...
Page 3: Table Of Contents
Receiver Unit description ..................14 Processing Unit description..................14 Hydrographic Work Station description..............15 Support information ......................16 PREPARATIONS ..............17 Tools, equipment and consumables required for EM 304 MKII NEL installation ...17 Personnel qualifications ....................18 Sonar room requirements....................19 Environmental requirements ..................19 Size and access requirements .................19 Requirements for insulation, heating and ventilation..........20...
Page 4 Installing the TX transducers into the mounting frames..........61 Rules for transducer handling ..................64 Painting the transducer face .....................66 Approved anti-fouling paints ...................68 INSTALLING THE EM 304 MKII NEL SYSTEM HARDWARE UNITS ................70 Transmitter Unit.......................71 Installing the Transmitter Unit ................72 RIO-P board - dip switch setting ................74...
Page 5 Installation manual External synchronization ....................114 Cable drawings and specifications ................. 117 RS-232 serial line using three wires and RJ45 connector ........118 RS-422 serial line using five wires and RJ45 connector ........119 Clock synchronization (1PPS) using a coax cable ..........120 External synchronization cable ................121 Remote control .....................122 Remote Control using K-Rem ................123...
Page 6 Kongsberg EM 304 MKII NEL 461497 TX mounting frame - 1.2 degrees ..............169 465094 TX mounting frame - 2 degrees ................170 464698 TX mounting frame - 2.75 degrees ..............171 499–133996 RX mounting frame - 1 degree ..............172 860–210592 RX mounting frame - 2 degrees..............173 860–210446 RX mounting frame- 4 degrees..............174...
Page 7: About This Manual
We assume that you are familiar with the basic acoustic principles of sound in water. We also expect that you have some experience with multibeam and/or single beam echo sounders in hydrographic applications.. Online information For information about the EM 304 MKII NEL and other products from Kongsberg Maritime, visit our website. • https://www.kongsberg.com/maritime/ Registered trademarks Observe the registered trademarks that apply.
Page 8: Kongsberg Em 304 Mkii Nel
The EM 304 MKII NEL is designed to perform seabed mapping with an unsurpassed resolution, coverage and accuracy. The system is cost effective, reliable and easily operated. The design of the EM 304 MKII NEL is based on more than 50 years of hydrographic experience with echo sounders, sonars and underwater positioning for civilian and military use.
Page 9: Commercial Export Classification
A sound speed profile should be used to update the systems absorption coefficient through the water column. Commercial Export Classification EM 304 MKII NEL uses a fixed sound speed through the entire water column and is classified as commercial equipment without potential for military use. 480282/A...
Page 10: Technical Details
In shallow waters due care is taken to the near field effects through nearfield focusing individually applied in the different sectors. EM 304 MKII NEL applies one focus range for each of the transmit sectors which are used for shallow water environment. Dynamic beam focusing is used for the reception beams.
Page 11: System Diagram 0.5 X 0.5 Degrees System
Kongsberg EM 304 MKII NEL System diagram 0.5 x 0.5 degrees system The system diagram identifies the main components of a basic EM 304 MKII NEL system. Only the main connections between the units are shown. Detailed interface capabilities and power cables are not shown.
Page 12 Kongsberg EM 304 MKII NEL Installation manual Hydrographic Work Station Interfaces: • Sound speed sensors • Tide • Centre depth output Processing Unit Interfaces: • Positioning systems • Attitude (roll, pitch and heave) • Sound speed sensor • Velocity • Clock •...
Page 13: System Units
A transducer is a device that converts one form of energy to another. In an echo sounder system the transducer converts between electric energy and sound. The EM 304 MKII NEL uses separate transducer arrays for transmitting and receiving sound pulses. Both transducer arrays can have one or more modules which are assembled in mounting frames.
Page 14: Transmitter Unit Description
For systems with more than 8 receiver modules, two Receiver Units are used. Processing Unit description The EM 304 MKII NEL Processing Unit is provided to process the signals to and from the Transmitter and Receiver Units. The EM 304 MKII NEL Processing Unit is an industrial computer using both COTS (commercial off-the-shelf) components and custom made components.
Page 15: Hydrographic Work Station Description
The unit can also be placed in the "survey room" or on the bridge. Hydrographic Work Station description The Hydrographic Work Station is the operator station of the EM 304 MKII NEL system. A dedicated maritime computer is provided. It is set up with all necessary software. The Hydrographic Work Station is based on the Microsoft ®...
Page 16: Support Information
Kongsberg EM 304 MKII NEL Installation manual Support information Should you need technical support for your EM 304 MKII NEL system you must contact a Kongsberg Maritime office. A list of all our offices is provided on our website. You can also contact our main support office in Norway.
Page 17: Preparations
Tools, equipment and consumables required for EM 304 MKII NEL installation In order to do the EM 304 MKII NEL installation, all necessary tools and equipment for mechanical work, cabinet installation and electrical wiring must be available. It is not practical to provide a detailed list of all necessary tools and equipment. You must be equipped with a standard set of tools.
Page 18: Personnel Qualifications
Personnel qualifications The installation of the EM 304 MKII NEL is a demanding task. It is very important that the personnel involved in the installation tasks are competent and experienced craftsmen. As a minimum, the following certified craftsmen must be available.
Page 19: Sonar Room Requirements
It is important that the sonar room is kept dry. The EM 304 MKII NEL units must not be exposed to excessive temperatures, dust, moisture or humidity. Such conditions can cause corrosive attacks and subsequent failures to the electronic circuitry.
Page 20: Requirements For Insulation, Heating And Ventilation
Heating is an effective method for reducing humidity. The heater in the sonar room must be dimensioned to maintain the equipment within its environmental tolerances. Observe the environmental specifications related to the EM 304 MKII NEL units. Ventilation requirements The sonar room should be connected to the vessel's ventilation system to ensure a supply of cooling air.
Page 21 A minimum number of additional electrical outlets must be provided for other equipment. Cabling requirements The sonar room units are connected to other EM 304 MKII NEL units located in different compartments on the vessel. The units may also be connected to peripheral devices. If these cables pass through hatches or areas where they may be damaged, they must be run in conduits.
Page 22: Where To Install The Transducer
Kongsberg EM 304 MKII NEL Installation manual Where to install the transducer Topics Introduction to transducer location, page 22 Mount the transducer deep, page 22 Avoid protruding objects near the transducer, page 23 Keep the transducer far away from the propellers, page 24...
Page 23: Avoid Protruding Objects Near The Transducer
The effect of slamming can be reduced by mounting the transducer as deep as possible on the hull. Note Kongsberg Maritime AS takes no responsibility for any damages to the transducer, the cable or the mounting arrangement, caused by slamming. Avoid protruding objects near the transducer Objects protruding from the hull will generate turbulence and flow noise.
Page 24: Keep The Transducer Far Away From The Propellers
When in operation, the noise and cavitation bubbles created by the thruster may make your EM 304 MKII NEL transducer useless, almost no matter where it is installed. When the bow thrusters are not in operation, the tunnel creates turbulence. If your vessel is pitching, the tunnel may be filled with air or aerated water in the upper position and release this in the lower position.
Page 25 Preparations Transducer Inclination angle Hull length at water line Maximum 1/3 of the hull length at water line (C) If the vessel hull has a bulbous bow, this may well be a good transducer location, but also in this case the flow pattern of the aerated water must be taken into consideration. The foremost part of the bulb is often a good location.
Page 26 Kongsberg EM 304 MKII NEL Installation manual Important The transducer must not have a negative inclination angle compared to water flow. Do not place a transducer near protruding objects, and especially not close behind them. Make sure that the surface of the resulting installation is as smooth and streamlined as possible.
Page 27: Acoustic Noise
Preparations Acoustic noise As with any other hydroacoustic systems, the quality of the EM 304 MKII NEL echo data and presentations are subject to unwanted acoustic noise. The echoes from any large and small target must be detected inside the noise.
Page 28: Self Noise
Kongsberg EM 304 MKII NEL Installation manual expressed in decibels. A ratio higher than 1:1 (greater than 0 dB) indicates more signal than noise. While SNR is commonly quoted for electrical signals, it can be applied to any form of signal [...].
Page 29 Preparations Machinery noise The main contributor to machinery noise is usually the main engine on board the vessel. The contribution from auxiliary machinery may, however, be considerable, especially if it is in poor shape. The machinery noise can be transmitted to the transducer as: •...
Page 30 Kongsberg EM 304 MKII NEL Installation manual Flow noise The upper water layers of the sea contain a myriad of small air bubbles created by the breaking waves. When the hull moves through water it will cause a disturbance, and this will generate friction.
Page 31: Ambient Noise
Preparations nearly the same frequency. Interference effects can be observed with all types of waves, for example, light, radio, acoustic, surface water waves or matter waves. https://en.wikipedia.org/wiki/Wave_interference — April 2016 Ambient noise Ambient noise is usually not a limiting factor to the performance of sonars and echo sounders.
Page 32 Kongsberg EM 304 MKII NEL Installation manual Note The information here must be considered as general advice. Each system installation must be handled separately depending on the hull design and the other electrical and mechanical systems installed on the vessel.
Page 33 • Use shielded cables with correct grounding. • Separate the cables used by the EM 304 MKII NEL system from other cables with high voltages, large currents or transients. • Place all high voltage power cables in metal conduits.
Page 34: Installing The Transducer
Kongsberg EM 304 MKII NEL Installation manual Installing the transducer Topics Transducer description, page 35 Transducer installation principles, page 38 Transducer installation summary, page 44 Manufacturing and installing the casings, page 47 Designing, manufacturing and mounting the steel conduits, page 49...
Page 35: Transducer Description
Installing the transducer Transducer description The EM 304 MKII NEL uses separate transducer arrays for transmitting and receiving sound pulses. Both transducer arrays have several modules which are assembled in mounting frames. The transducer arrays are modular and flexible and can be tailored to almost any required size.
Page 36 Kongsberg EM 304 MKII NEL Installation manual Transducer orientation The two transducer arrays are normally mounted as “T” or “L” configurations under the vessel’s hull (Mills Cross configuration). The transmit transducer array should be aligned parallel to the vessel’s keel. The receive transducer array should be aligned 90 degrees on the keel.
Page 37 Installing the transducer Orientation of transducer modules, top view, 0.3 x 0.5 degrees system. Transmit transducer module number 1 Transmit transducer module number 24 Receive transducer module number 1 Receive transducer module number 16 480282/A...
Page 38: Transducer Installation Principles
Kongsberg EM 304 MKII NEL Installation manual Transducer installation principles Topics Introduction, page 38 Gondola, page 40 Blister, page 41 Flush mounted, page 42 Externally mounted with fairings, page 42 Introduction The transducer can be installed using different installation principles.
Page 39 Once the installation method is defined, the installation shipyard must provide the necessary drawings. These drawings must be approved by the vessel’s classification authority. If required, Kongsberg Maritime AS can assist with the required engineering. 480282/A...
Page 40: Gondola
Kongsberg EM 304 MKII NEL Installation manual Gondola A gondola is a streamlined pod mounted under the hull of the ship. It can either be welded or bolted under the hull plates. It is well suited for refitting a vessel with an EM 304 MKII NEL system.
Page 41: Blister
A blister is well suited for refitting a vessel with an EM 304 MKII NEL system. The blister can also be used for other sonar and echo sounder transducers.
Page 42: Flush Mounted
Kongsberg EM 304 MKII NEL Installation manual Flush mounted With the flush mount method the transducers are installed inside the ship's hull. This method exposes the transducers to passing air bubbles which might affect the system performance. The benefit of a flush mounted installation is that nothing protrudes from the keel.
Page 43 Installing the transducer Note The installation shipyard must provide all necessary installation drawings. If required, all drawings and documents must be approved by the vessel’s national registry and corresponding maritime authority and/or classification society. Such approval must be obtained before the installation can begin. The shipowner and shipyard doing the installation are responsible for obtaining and paying for such approval.
Page 44: Transducer Installation Summary
The installation of the EM 304 MKII NEL transducer requires careful planning and preparations. It is a key task for successful use of the EM 304 MKII NEL Multibeam Echo Sounder. An overall installation procedure is provided.This procedure does not describe any detailed tasks.
Page 45 Installing the transducer Procedure Determine the physical location of the transducer. Note It is important to minimize the alongship gap between the receiver and tranceiver arrays to improve the performance at very shallow water (to get overlap between RX and TX footprints). Make sure that all possible considerations are made to reduce noise.
Page 46 Kongsberg EM 304 MKII NEL Installation manual 10 Consider applying a thin layer of anti-fouling paint to the transducer face. Marine growth (biological fouling) on the transducer face reduces the performance. We recommend that you paint the transducer face immediately after installation, and then again as often as required to maintain the protection.
Page 47: Manufacturing And Installing The Casings
Installing the transducer Manufacturing and installing the casings The transducer mounting frames needs to be mounted into a solid base construction also called casing. The casings can be integrated in different kind of installation types like a gondola, blister or flush in the hull. Prerequisites You must be equipped with a standard set of tools.
Page 48 Kongsberg EM 304 MKII NEL Installation manual Procedure Manufacture the casings according the production drawings. Alter the drawings and the design as required to fit the vessel and the chosen installation principle. Install the casings under the hull in either the blister, the gondola or into the hull.
Page 49: Designing, Manufacturing And Mounting The Steel Conduits
Installing the transducer Designing, manufacturing and mounting the steel conduits Steel conduits are used to protect the transducer cables. They should be filled with water up to the waterline. Prerequisites You must be equipped with a standard set of tools. This tool set must comprise the normal tools for mechanical tasks.
Page 50 Kongsberg EM 304 MKII NEL Installation manual Note Make sure that there are no spatter, sharp edges or protruding objects that can damage the transducer cables. All necessary precautions must be made to avoid damage to the cables while pulling them through the steel conduit.
Page 51 Installing the transducer Vessel’s hull Ice and debris knife Casings for the transducer arrays frames and modules Support framework inside the casing or blister must not block for the transducer cables Water filled blister. With air outlet towards the hull One or more water filled steel conduit for the RX Transducer array One or more water filled steel conduit for the TX Transducer array Waterline...
Page 52 1 " pipe routed above the deck. Seal the top of the steel conduits with a class approved cable sealing system. Kongsberg Maritime recommends the use of sealing from Roxtec, Brattberg or similar. If relevant, allow the maritime authority and/or classification society to inspect and approve the design and the installation of the steel conduit.
Page 53: Installing The Rx Mounting Frame
EM 304 MKII NEL transducers. Prerequisites Note Engineers from Kongsberg Maritime must be present to install the transducer mounting frames. • The casings have been installed and machined according to the requirements. • All relevant vessel and transducer drawings must be available.
Page 54 Kongsberg EM 304 MKII NEL Installation manual Procedure Mount the frame in the casings. The mounting frame must be bolted onto the flat bars inside the casing. The number of flat bars depends on the length of the transducer array. There are three (3) holes in each flat bar.
Page 55: Installing The Tx Mounting Frames
EM 304 MKII NEL transducers. Prerequisites Note Engineers from Kongsberg Maritime must be present to install the transducer mounting frames. • The casings have been installed and machined according to the requirements. • All relevant vessel and transducer drawings must be available.
Page 56 The mounting frame should be aligned parallel to the vessel’s keel. Drawings for EM 304 MKII NEL mounting frames • 465329 - TX mounting frame - 0.5 degrees • 462762 - TX mounting frame - 0.6 degrees • 411996 - TX mounting frame - 1 degree •...
Page 57 Installing the transducer Related topics Transducer array flatness, page 136 Checking the transducer array flatness and correcting deviations, page 137 Dimensional survey accuracy requirements, page 159 Alignment specifications, page 161 Drawing file, page 162 480282/A...
Page 58: Installing The Rx Transducers Into The Mounting Frames
When all the preparations have been made, the transducers must be installed into the mounting frames. Prerequisites Note Engineers from Kongsberg Maritime must be present to supervise installation of the transducer modules. • The mounting frames has been installed. • The steel conduit is mounted with all installation work finalized.
Page 59 Pull out the transducer cable, and guide it out through the side of the mounting frame. EM 304 MKII NEL transducer cables have a minimum bending radius of 105 mm. Note Ensure that minimum bending radius is not exceeded and that no damage is inflicted to the cables during the pull.
Page 60 Kongsberg EM 304 MKII NEL Installation manual Check that the transducer cables pass through the casing in such a way that they are not exposed to wear and tear. Secure as required. Related topics Cable plan - Receiver Unit, page 99...
Page 61: Installing The Tx Transducers Into The Mounting Frames
Prerequisites Note Engineers from Kongsberg Maritime must be present to install the transducer modules. Before you can do this task, the following prerequisites must be met: • The mounting frames has been installed. • The steel conduit is mounted with all installation work finalized.
Page 62 The TX cables must point towards the starboard side. Pull out the transducer cables, and guide them out through the side of the mounting frame. EM 304 MKII NEL transducer cables have a minimum bending radius of 105 mm. Each TX module has two cables. Note Ensure that minimum bending radius is not exceeded and that no damage is inflicted to the cables during the pull.
Page 63 Installing the transducer Mount the next transducer module next to the previous. Repeat until all modules have been installed. Check that the transducer cables pass through the casing in such a way that they are not exposed to wear and tear. Secure as required. Related topics Cable plan - Transmitter Unit, page 90 Weights and outline dimensions, page 149...
Page 64: Rules For Transducer Handling
Kongsberg EM 304 MKII NEL Installation manual Rules for transducer handling To secure long life and accurate results, the transducer must be handled correctly. A transducer must always be handled as a delicate instrument. Incorrect actions may damage the transducer beyond repair. Observe these transducer handling rules: Do not activate the transducer when it is out of the water.
Page 65 Installing the transducer Approved anti-fouling paints Because some paint types may be aggressive to the polyurethane in the transducer, consult our list of approved paints. Observe the relevant instructions and safety information provided by the paint manufacturer. Non-permanent transducer installations For non-permanent installations, rinse the transducer with fresh water every time you take it out of the water.
Page 66: Painting The Transducer Face
The anti-fouling paint will reduce the acoustical performance of the transducer. The surface roughness of the transducer substrate and the thickness of the paint may also influence the performance. Kongsberg Maritime cannot be held responsible for any negative consequences of the anti-fouling paint.
Page 67 Installing the transducer Abrade the transducer surface using a sanding paper with 240 inch grit size. Do not exceed a surface roughness (R ) of 35 microns as this can influence the transducer performance. Remove all dust. Apply the primer, and let it dry. Apply the paint.
Page 68: Approved Anti-Fouling Paints
Kongsberg EM 304 MKII NEL Installation manual Approved anti-fouling paints This is our list of approved antifouling paints for all transducer types. Always refer to the manufacturer's documentation and data sheets for a complete procedure and for relevant safety information.
Page 69 Apply 40 µm dry film thickness. – : Intersmooth 7465Si SPC Paint Apply 100 µm dry film thickness. Online information The list can also be found on Kongsberg Maritime (https://www.kongsberg.com/maritime/). • : 420527 Painting instructions - Kongsberg echo sounder transducers 480282/A...
Page 70: Installing The Em 304 Mkii Nel System Hardware Units
Kongsberg EM 304 MKII NEL Installation manual Installing the EM 304 MKII NEL system hardware units Topics Transmitter Unit, page 71 Receiver Unit, page 75 Processing Unit, page 79 Installing the Hydrographic Work Station, page 84 480282/A...
Page 71: Transmitter Unit
Installing the EM 304 MKII NEL system hardware units Transmitter Unit Topics Installing the Transmitter Unit, page 72 RIO-P board - dip switch setting, page 74 480282/A...
Page 72: Installing The Transmitter Unit
Kongsberg EM 304 MKII NEL Installation manual Installing the Transmitter Unit The Transmitter Unit is normally located in a "sonar room" close to the transducer arrays. The physical length of the cables limit the distance between the transducers and the Transmitter Unit.
Page 73 Installing the EM 304 MKII NEL system hardware units Mark the location of the holes for the upper and lower shock absorber on the bulkhead. Drill eight (8) 11-mm holes for each shock absorber. Note Always check on the other side of the bulkhead before drilling holes.
Page 74: Rio-P Board - Dip Switch Setting
Kongsberg EM 304 MKII NEL Installation manual RIO-P board - dip switch setting The dip switch setting on the RIO–P board has to be correct. Transmitter Unit 1 (MASTER): All switches must be set to ON. The position of the dip switches are shown with...
Page 75: Receiver Unit
Installing the EM 304 MKII NEL system hardware units Receiver Unit Topics Installing the Receiver Unit, page 76 Receiver Unit - dip switch setting, page 78 480282/A...
Page 76: Installing The Receiver Unit
Kongsberg EM 304 MKII NEL Installation manual Installing the Receiver Unit The EM 304 MKII NEL Receiver Unit is normally located in a "sonar room" close to the transducer arrays. The physical length of the cables limit the distance between the transducers and the Receiver Unit.
Page 77 Installing the EM 304 MKII NEL system hardware units Drill three (3) 9-mm holes for each shock absorber. Note Always check on the other side of the bulkhead before drilling holes. Mount the cabinet to the bulkhead with six (6) M8 bolts.
Page 78: Receiver Unit - Dip Switch Setting
Kongsberg EM 304 MKII NEL Installation manual Receiver Unit - dip switch setting The dip switch setting in the Receiver Unit has to be correct. The software in the Processing Unit must know the identification of the Receiver Unit(s). A switch on the processing board inside the Receiver Unit is used for this.
Page 79: Processing Unit
Installing the EM 304 MKII NEL system hardware units Processing Unit Topics Installing the Processing Unit, page 79 Processing Unit rear panel description, page 81 Processing Unit circuit boards and modules, page 82 CBMF board - dip switch setting, page 83 Installing the Processing Unit The Processing Unit is designed to be installed in a 19"...
Page 80 Kongsberg EM 304 MKII NEL Installation manual Note In order to allow for future maintenance, you must mount the unit with its cables and connectors available for easy access. Make sure that the chosen location meets the installation requirements. Mount the Processing Unit using four bolts through the front panel. The mounting bolts and nuts are supplied with the unit.
Page 81: Processing Unit Rear Panel Description
Installing the EM 304 MKII NEL system hardware units Processing Unit rear panel description The rear panel of the Processing Unit holds all the connectors used to communicate with external devices and the power input socket. It also holds a fuse for the power input.
Page 82: Processing Unit Circuit Boards And Modules
The Processing Unit has two fan units for cooling purposes. • Power supply One power supply unit is used in the EM 304 MKII NEL Processing Unit for supply of 5, 24 and 48 VDC. The Excelsys XLB power supply is located inside the Processing Unit, and is not visible from the outside.
Page 83: Cbmf Board - Dip Switch Setting
Installing the EM 304 MKII NEL system hardware units CBMF board - dip switch setting The dip switch setting on the CBMF board has to be correct. All the dip switches on all the CBMF boards in the Processing Unit should be set to OFF.
Page 84: Installing The Hydrographic Work Station
Kongsberg EM 304 MKII NEL Installation manual Installing the Hydrographic Work Station Topics Installing the HWS - MC330 - Rack model, page 85 480282/A...
Page 85: Installing The Hws - Mc330 - Rack Model
Installing the EM 304 MKII NEL system hardware units Installing the HWS - MC330 - Rack model The MC330 computer is available as a rack model and a desktop model.Follow this procedure to install the rack model of the computer.
Page 86 Kongsberg EM 304 MKII NEL Installation manual The power-button is in the front, and one USB-C and one USB-B are also in the front. If a wireless mouse is used, it may be better to insert the radio transmitter in the front than inside the cabinet.
Page 87: Cable Layout And Interconnections
Cable layout and interconnections Cable layout and interconnections Topics Cable plans, page 88 List of cables, page 108 Clock synchronization (1PPS), page 112 External synchronization, page 114 Cable drawings and specifications, page 117 480282/A...
Page 88: Cable Plans
Kongsberg EM 304 MKII NEL Installation manual Cable plans Topics Cable plan, Processing Unit, page 89 Cable plan - Transmitter Unit, page 90 Cable plan - Receiver Unit, page 99 Synchronization overview, 2 Transmitter Units 2 Receiver Units, page 105...
Page 89: Cable Plan, Processing Unit
Cable layout and interconnections Cable plan, Processing Unit The Processing Unit cables include those used to connect the EM 304 MKII NEL Processing Unit to AC mains power, and to the transmitter and receiver units. One Ethernet cable is used to connect the Processing Unit to the Hydrographic Work Station.
Page 90: Cable Plan - Transmitter Unit
Kongsberg EM 304 MKII NEL Installation manual Cable plan - Transmitter Unit The transmitter (TX) Unit cables include those used to connect the EM 304 MKII NEL TX Unit(s) to AC mains power, to the receiver (RX) Unit, to the Processing Unit and to the transducers.
Page 91 Cable layout and interconnections Transmitter Unit 1 Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 304 MKII NEL delivery. 480282/A...
Page 92 Kongsberg EM 304 MKII NEL Installation manual Transmitter Unit 1 RIO-P board TX RIO board 1 TX RIO board 12 Transmit transducer module number 1 Transmit transducer module number 12 Transmit transducer module number 13 Transmit transducer module number 24...
Page 93 Cable layout and interconnections Transmitter Unit 2 Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 304 MKII NEL delivery. 480282/A...
Page 94 Kongsberg EM 304 MKII NEL Installation manual Transmitter Unit 2 RIO-P board TX RIO board 13 TX RIO board 24 Transmit transducer module number 1 Transmit transducer module number 8 Transmit transducer module number 9 Transmit transducer module number 16...
Page 95 Cable layout and interconnections Table 1 Cable identification TX Posi- Soc- Transducer serial number (fill in) Cable Size of system tion boar- 480282/A...
Page 96 Kongsberg EM 304 MKII NEL Installation manual Posi- Soc- Transducer serial number (fill in) Cable Size of system tion boar- 480282/A...
Page 97 The transducer arrays are modular and flexible and can be tailored to almost any required size. With all possible configurations of the EM 304 MKII NEL system, the number of TX transducers in the array can vary from 1 to 24.
Page 98 Kongsberg EM 304 MKII NEL Installation manual Example A system with 13 TX transducer modules will need two Transmitter Units. To distribute the transducers evenly, Transmitter Unit 1 will have 7 transducer modules connected and Transmitter Unit 2 will have 6.
Page 99: Cable Plan - Receiver Unit
Cable layout and interconnections Cable plan - Receiver Unit The receiver (RX) Unit cables include those used to connect the EM 304 MKII NEL RX Unit(s) to AC mains power, to the transmitter (TX) Unit, to the Processing Unit and to the transducers.
Page 100 Kongsberg EM 304 MKII NEL Installation manual Receiver Unit 1 Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 304 MKII NEL delivery. 480282/A...
Page 101 Cable layout and interconnections Receiver Unit 1 Socket RX 1 Socket RX 8 Receive transducer module number 1 Receive transducer module number 16 Cables from Receive Transducer modules 1 to 8 are connected to Receiver Unit 1 according to the cable identification table Cables from Receive Transducer modules 9 to 16 are connected to Receiver Unit 2 according to the cable identification table 480282/A...
Page 102 Kongsberg EM 304 MKII NEL Installation manual Receiver Unit 2 Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 304 MKII NEL delivery. 480282/A...
Page 103 Cable layout and interconnections Receiver Unit 2 Socket RX 1 Socket RX 8 Receive transducer module number 1 Receive transducer module number 16 Cables from Receive Transducer modules 9 to 16 are connected to Receiver Unit 2 according to the cable identification table Cables from Receive Transducer modules 1 to 8 are connected to Receiver Unit 1 according to the cable identification table Marking of RX transducer cables...
Page 104 Kongsberg EM 304 MKII NEL Installation manual Connection of RX transducer cables Note It is essential to connect all RX cables successively to the sockets in the Receiver Unit(s). During the installation of the RX array, you must fill in the serial number in the cable identification table .
Page 105: Synchronization Overview, 2 Transmitter Units 2 Receiver Units
Receiver Unit 2 Cables identified with an asterisk (*) are system cables. These cables are supplied with the EM 304 MKII NEL delivery. The fibre optic cable and the cable for remote control between the Transmitter Units and Receiver Units are delivered as a kit. The standard cable length is 10 metres.
Page 106: Remote On/Off Overview, 2 Transmitter Units 2 Receiver Units
Kongsberg EM 304 MKII NEL Installation manual Remote on/off overview, 2 Transmitter Units 2 Receiver Units The EM 304 MKII NEL system can be switched on/off via the Processing Unit. Processing Unit Transmitter Unit 1 Transmitter Unit 2 Receiver Unit 1 Receiver Unit 2 Cables identified with an asterisk (*) are system cables.
Page 107: Cable Plan - Hydrographic Work Station
Computer keyboard Computer mouse or trackball Cables identified with an asterisk (*) are system or commercial cables. These cables are supplied with the EM 304 MKII NEL delivery. Related topics List of cables, page 108 480282/A...
Page 108: List Of Cables
Kongsberg EM 304 MKII NEL Installation manual List of cables A set of cables is required to connect the system units to each other, and to the relevant power source(s). Type Cable From/To Minimum requirements Video cable From computer to display This is a commercial cable.
Page 109 Cable layout and interconnections Cable Type From/To Minimum requirements C29–C32 Serial cable From Processing Unit to external device(s) Ethernet cable From Processing Unit to external CAT5-E STP (Shielded Twisted device(s) Pair) Attitude Velocity sensor Coax cable From Processing Unit to the global positioning system (GPS) The software clock can be synchronized to an external 1PPS (Pulse per second) signal.
Page 110 EM 304 MKII NEL system. The EM 304 MKII NEL system is often a part of a project delivery. For such deliveries, specific project cable drawings are established to show all the main cables, and how the various products are connected.
Page 111 Cable layout and interconnections Related topics Cable plan, Processing Unit, page 89 Cable plan - Transmitter Unit, page 90 Cable plan - Receiver Unit, page 99 Cable plan - Hydrographic Work Station, page 107 480282/A...
Page 112: Clock Synchronization (1Pps)
The Processing Unit has a 1PPS (one pulse per second) input for clock synchronization. This is a generic photo. The CBMF board used by the EM 304 MKII NEL may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 113 Cable layout and interconnections Two examples are shown to clarify. • Using +4.5 V input signal the input current will be as required (~10 mA). No additional resistance required. • An added resistor of 750 Ω and minimum 0.1 W must be used. Related topics Clock synchronization (1PPS) using a coax cable, page 120 480282/A...
Page 114: External Synchronization
The Processing Unit is has a connection for interface to an external synchronization system. This is a generic photo. The CBMF board used by the EM 304 MKII NEL may look slightly different due to minor design changes on the protective lid and/or the front panel.
Page 115 TRIG OUT Trigger out - Open collector output Output to external from isolation unit synchronization system, active while the EM 304 MKII NEL is transmitting TRIG IN Trigger in - Input to Optical isolated input High EM 304 MKII NEL...
Page 116 Kongsberg EM 304 MKII NEL Installation manual Two examples are shown to clarify. • Using +4.5 V input signal the input current will be as required (~10 mA). No additional resistance required. • An added resistor of 750 Ω and minimum 0.1 W must be used.
Page 117: Cable Drawings And Specifications
Cable layout and interconnections Cable drawings and specifications Topics RS-232 serial line using three wires and RJ45 connector, page 118 RS-422 serial line using five wires and RJ45 connector, page 119 Clock synchronization (1PPS) using a coax cable, page 120 External synchronization cable, page 121 Remote control, page 122 Remote Control using K-Rem, page 123...
Page 118: Rs-232 Serial Line Using Three Wires And Rj45 Connector
Kongsberg EM 304 MKII NEL Installation manual RS-232 serial line using three wires and RJ45 connector An RS-232 serial line connection using three (3) wires is a common way to connect the EM 304 MKII NEL system to external devices. Local connection RJ45 connector...
Page 119: Rs-422 Serial Line Using Five Wires And Rj45 Connector
RS-422 serial line using five wires and RJ45 connector An RS-422 serial line connection is a common way to connect the EM 304 MKII NEL system to external devices. An RS-422 serial line connection can transmit data at rates as high as 10 million bits per second, and may be sent on cables as long as 1500 meters.
Page 120: Clock Synchronization (1Pps) Using A Coax Cable
Kongsberg EM 304 MKII NEL Installation manual Clock synchronization (1PPS) using a coax cable The Processing Unit is equipped with a 1PPS signal input for clock synchronization. Male BNC connector Ground 1PPS signal This cable must be provided by the installation shipyard.
Page 121: External Synchronization Cable
The connector is RJ45 type. Local connection The connector is RJ45 type. Note Pin 3 and 6 is used by Kongsberg Maritime only. Connection on remote device Unless otherwise specified, this cable must be provided by the installation shipyard.
Page 122: Remote Control
Kongsberg EM 304 MKII NEL Installation manual Remote control The Processing Unit can be switched on/off with a remote switch. This switch is connected to a 9–pin D-connector on the Processing Unit. Local connection, male 9–pin D-connector Connection to remote lamp and on/off switch Female 9–pin D-connector...
Page 123: Remote Control Using K-Rem
Cable layout and interconnections Remote Control using K-Rem The Processing Unit can be switched on/off with a remote switch. This switch is connected to a 9–pin D-connector on the Processing Unit. A dedicated junction box with on/off switches and light indication has been designed for this purpose (K-Rem). Local connection, male 9–pin D-connector Connection at the terminal strip in Remote Control Unit (K-Rem )
Page 124: Dummy Plug For Not Using Remote Control
Kongsberg EM 304 MKII NEL Installation manual Dummy plug for not using remote control The Processing Unit can be switched on/off with a remote switch. If remote control is not used, the enclosed remote control dummy plug has to be inserted in the Remote Control connector in the Processing Unit.
Page 125: Remote Control Of Transmitter Unit
Transmitter Unit from the Processing Unit. Processing Unit end, male 4–pin Lemo connector. Lemo part number: FGG.3B.304.CLAD62Z . Kongsberg Maritime part number: 348015 Transmitter Unit end, male 9–pin D-connector Processing Unit end Pin layout male 4–pin Lemo connector.
Page 126 Kongsberg EM 304 MKII NEL Installation manual Transmitter Unit end Pin layout male 9–pin D-connector. Connects to on the RIO-P board REMOTE ON/OFF IN at the bottom of the Transmitter Unit. Minimum cable requirements • : 2 x 0.5 mm²...
Page 127: Remote Control Of Receiver Unit
Cable layout and interconnections Remote control of Receiver Unit Cable for switching on/off the Receiver Unit from the Processing Unit. This cable between the Transmitter Unit and the Receiver Unit is required if you want to switch on and off the Receiver Unit from the Processing Unit. The fibre optic cable and the cable for remote control between the Transmitter Units and Receiver Units are delivered as a kit.The standard cable length is 10 metres.
Page 128 Kongsberg EM 304 MKII NEL Installation manual Connects to at the bottom of the Receiver Unit. REMOTE ON/OFF IN Minimum cable requirements • : 2 x 0.5 mm² Conductors • : Overall braided Screen • : 60 V Voltage •...
Page 129: Remote Control Overview
The EM 304 MKII NEL system can be switched on/off with a central control switch. An EM 304 MKII NEL system has several hardware units, and to make it easier to switch on/off the system it is prepared for remote control. There are several methods to do this: •...
Page 130 Kongsberg EM 304 MKII NEL Installation manual Receiver Unit 2, connector marked REMOTE ON/OFF OUT Note The number of Transmitter Units and Receiver Units depends upon the chosen system configuration. The diagram shows the principle for a maximum possible solution, with two Transmitter Units and two Receiver Units.
Page 131: Transmit Transducer Cable
Cable layout and interconnections Transmit Transducer cable The transducer cables are moulded to the transducer modules and connect in the other end to the Transmitter Unit (TXU) with connectors. The standard length of the transducer cables is 15 or 25 metres. Each TX module has two cables.
Page 132: Receive Transducer Cable
Kongsberg EM 304 MKII NEL Installation manual Receive Transducer cable The transducer cables are moulded to the transducer modules and connect in the other end to the Receiver Unit (RXU) with connectors. The standard length of the transducer cables is 15 or 25 metres. Each RX module has one cable.
Page 133: Dimensional Surveying And Alignment
Dimensional surveying and alignment Dimensional surveying and alignment Topics About dimensional surveying and alignment, page 134 Dimensional surveying, page 134 Alignment, page 135 Transducer array flatness, page 136 Checking the transducer array flatness and correcting deviations, page 137 Calibration, page 138 Vessel coordinate system, page 138 480282/A...
Page 134: About Dimensional Surveying And Alignment
Kongsberg EM 304 MKII NEL Installation manual About dimensional surveying and alignment The EM 304 MKII NEL Multibeam Echo Sounder is a precision instrument for high quality data collection. In order to obtain precision data that are both detailed and correct, it is necessary to align the transducer, measure the location and offset of each sensor in relation to the vessel’s...
Page 135: Alignment
Dimensional survey accuracy requirements, page 159 Alignment To ensure a successful installation of the EM 304 MKII NEL system, all alignment and measurements must be done to the highest possible accuracy. The alignment tasks required for EM 304 MKII NEL include: •...
Page 136: Transducer Array Flatness
Kongsberg EM 304 MKII NEL Installation manual Transducer array flatness To avoid unwanted acoustic effects caused by misalignment of the transducer elements the transducer array must be installed with a flat surface. It may be most practical to perform these measurements on the transducer mounting frames before installation of the transducer modules.
Page 137: Checking The Transducer Array Flatness And Correcting Deviations
Dimensional surveying and alignment Checking the transducer array flatness and correcting deviations An overall procedure specifying the main tasks is provided. The detailed knowledge about how to do the measurements is offered by the consultants doing the work. Prerequisites In some occasions a flatness survey of the frame mounting foundations can be recommended.
Page 138: Calibration
During the sea trials, calibration surveys are required as described in the EM 304 MKII NEL end user documentation. In order to check and verify the performance of the EM 304 MKII NEL system, we strongly recommend that calibration surveys are done at regular intervals, or prior to any large survey.
Page 139 Dimensional surveying and alignment In order to establish a system to measure the relative distance between sensors, a virtual coordinate system is established. This coordinate system uses three vectors; X, Y and Z. The X-axis is the longitudinal direction of the vessel, and in parallel with the deck.
Page 140: Technical Specifications
Kongsberg EM 304 MKII NEL Installation manual Technical specifications Topics Performance specifications, page 141 Interface specifications, page 142 Weights and outline dimensions, page 149 Power requirements, page 154 Environmental requirements, page 156 Dimensional survey accuracy requirements, page 159 Alignment specifications, page 161...
Page 141: Performance Specifications
140°. The intensity level may be lowered by 10 or 20 dB by the operator. The EM 304 MKII NEL may be set in a mode to begin pinging with a flexible soft-start as a possible means of inducing marine mammals to leave the area of high intensity sound.
Page 142: Interface Specifications
Kongsberg EM 304 MKII NEL Installation manual Interface specifications Topics Datagram formats, page 143 Interface specifications - Processing Unit - KMall format, page 143 External sensors requirements, page 147 Interface specifications - Hydrographic Work Station - KMall format, page 148...
Page 143: Datagram Formats
Interface specifications - Processing Unit - KMall format The EM 304 MKII NEL system will interface with peripheral systems and sensors using standard and/or proprietary datagram formats. This is a description of available datagram formats for EM multibeams using the KMall format.
Page 144 This third party datagram format is used to transfer latitude and longitude of vessel position, time of position fix and status from a global positioning system (GPS). Supported datagram formats for external clock The EM 304 MKII NEL supports the following datagram format from an external clock. • NMEA ZDA The NMEA ZDA datagram contains the universal time code (UTC), day, month, year and local time zone.
Page 145 Technical specifications Supported datagram formats for motion information including velocity The EM 304 MKII NEL system supports the following datagram format from a motion sensor: • KM Binary KM Binary is a generic datagram format defined by Kongsberg Maritime. This format has very high resolution on timing and sensor parameters.
Page 146 Sound speed probe can be interfaced directly to the Processing Unit and configured in K-Controller or interfaced to the Hydrograpic Work Station and configured in SIS 5. The EM 304 MKII NEL supports the following datagram format from a sound speed probe.
Page 147: External Sensors Requirements
In the FM mode, the Doppler shift made by the movements of the survey vessel relative to the bottom, causes a range error. This error must be corrected. Kongsberg supports a large range of sensor suppliers in addition to our own Kongsberg Seatex systems.
Page 148: Interface Specifications - Hydrographic Work Station - Kmall Format
Interface specifications - Hydrographic Work Station - KMall format The EM 304 MKII NEL system will interface with peripheral systems and sensors using standard and/or proprietary datagram formats. This is a description of available datagram formats for EM multibeams using the KMall format.
Page 149: Weights And Outline Dimensions
Technical specifications Weights and outline dimensions These weights and outline dimension characteristics summarize the physical properties of the EM 304 MKII NEL system. Transmit transducer module • Outline dimensions – : 423.2 mm Length – : 197 mm (217 mm depending on frame size) Width –...
Page 150 Kongsberg EM 304 MKII NEL Installation manual – Approximate weight ∗ : 900 kg 0.3 degree ∗ : 600 kg 0.5 degree ∗ : 300 kg 1 degree ∗ : 150 kg 2 degrees ∗ : 80 kg (Approximately) 4 degrees Receive transducer module •...
Page 151 1 degree – : 3 modules required 2 degrees – : 2 modules required 4 degrees Processing Unit • : Kongsberg Maritime, EM PU Make and model • Outline dimensions – : 424 mm Depth – : 482.5 mm (19" rack) Width –...
Page 152 Kongsberg EM 304 MKII NEL Installation manual Receiver Unit • Outline dimensions – : 285 mm Height – : 488 mm Width – : 420 mm Depth • : 21 kg Weight Hydrographic Work Station HWS Desktop version • : MC330 Make and model •...
Page 153 Technical specifications Related topics Drawing file, page 162 480282/A...
Page 154: Power Requirements
Kongsberg EM 304 MKII NEL Installation manual Power requirements These power characteristics summarize the supply power requirements for the EM 304 MKII NEL system. Transmitter Unit • : 230 VAC, 47 to 63 Hz Voltage requirement • : 15 % Maximum voltage deviation •...
Page 155 Technical specifications Display • : Isic MD22/24/27 (DuraMON WS 22/24/27) Make and model http://www.isic-systems.com Manufacturer’s website • Voltage requirement – : 90 to 264 VAC, 50 to 60 Hz Standard – : 18 to 36 VDC Optional • : 40 W Maximum power consumption 480282/A...
Page 156: Environmental Requirements
Kongsberg EM 304 MKII NEL Installation manual Environmental requirements These specifications summarize the temperature requirements and other environmental standards for the EM 304 MKII NEL system. Transducers • : -5 to 50 °C Operating temperature • : -30 to 70 °C Storage temperature •...
Page 157 Storage temperature • : 5 to 95% Non-condensing Relative humidity • Certificates – IEC 60945 – IACS E10 More technical information is stated in the data sheet for the Hydrographic Work Station. Visit our website for this information: https://www.kongsberg.com/maritime/ 480282/A...
Page 158 Kongsberg EM 304 MKII NEL Installation manual Display • : Isic MD22/24/27 (DuraMON WS 22/24/27) Make and model http://www.isic-systems.com Manufacturer’s website • : -15 to +55 °C Operating temperature • : -25 to +70 °C Storage temperature • : 8 to 95% Non-condensing Relative humidity •...
Page 159: Dimensional Survey Accuracy Requirements
Technical specifications Dimensional survey accuracy requirements Minimum accuracy requirements are defined for the dimensional survey. Higher accuracy will provide better survey results. Note The following accuracy requirements are minimum requirements. Higher accuracy will provide better results and should therefore always be aimed at. Transducer •...
Page 160 Kongsberg EM 304 MKII NEL Installation manual Heading sensor Note These spesifications are minimum requirements. Consult the installation manual for each sensor for how it is to be aligned and how accurately the location needs to be measured. • : ± 0.10 degrees...
Page 161: Alignment Specifications
Technical specifications Alignment specifications These alignment specifications summarize the alignment accuracy requirements of the EM 304 MKII NEL system. Note The following accuracy requirements are minimum requirements. Higher accuracy will provide better results and should therefore always be aimed at.
Page 162: Drawing File
Kongsberg EM 304 MKII NEL Installation manual Drawing file Topics 463055 TX module outline dimensions, page 164 834–211475 RX module outline dimensions, page 165 465329 TX mounting frame - 0.5 degrees, page 166 462762 TX mounting frame - 0.6 degrees, page 167 411996 TX mounting frame - 1 degree, page 168 461497 TX mounting frame - 1.2 degrees, page 169...
Page 163 Drawing file 426226 Transmitter Unit dimensions, page 188 426264 Receiver Unit dimensions, page 189 385422 Processing Unit dimensions, page 190 464618 HWS dimensions - MC330 - Rack model, page 191 409067 Fibre cable kit, page 192 370275 Remote Control Unit (K-REM) dimensions, page 193 373962 Remote Control Unit (K-REM) wiring diagram, page 194 480282/A...
Page 164: 463055 Tx Module Outline Dimensions
Kongsberg EM 304 MKII NEL Installation manual 463055 TX module outline dimensions 480282/A...
Page 165: 834-211475 Rx Module Outline Dimensions
Drawing file 834–211475 RX module outline dimensions 480282/A...
Page 166: 465329 Tx Mounting Frame - 0.5 Degrees
Kongsberg EM 304 MKII NEL Installation manual 465329 TX mounting frame - 0.5 degrees 480282/A...
Page 167: 462762 Tx Mounting Frame - 0.6 Degrees
Drawing file 462762 TX mounting frame - 0.6 degrees 480282/A...
Page 168: 411996 Tx Mounting Frame - 1 Degree
Kongsberg EM 304 MKII NEL Installation manual 411996 TX mounting frame - 1 degree 480282/A...
Page 169: 461497 Tx Mounting Frame - 1.2 Degrees
Drawing file 461497 TX mounting frame - 1.2 degrees 480282/A...
Page 170: 465094 Tx Mounting Frame - 2 Degrees
Kongsberg EM 304 MKII NEL Installation manual 465094 TX mounting frame - 2 degrees 480282/A...
Page 171: 464698 Tx Mounting Frame - 2.75 Degrees
Drawing file 464698 TX mounting frame - 2.75 degrees 480282/A...
Page 172: 499-133996 Rx Mounting Frame - 1 Degree
Kongsberg EM 304 MKII NEL Installation manual 499–133996 RX mounting frame - 1 degree 480282/A...
Page 173: 860-210592 Rx Mounting Frame - 2 Degrees
Drawing file 860–210592 RX mounting frame - 2 degrees 480282/A...
Page 174: 860-210446 Rx Mounting Frame- 4 Degrees
Kongsberg EM 304 MKII NEL Installation manual 860–210446 RX mounting frame- 4 degrees 480282/A...
Page 175: 462326 Tx Casing With Frame - 0.6 Degrees
Drawing file 462326 TX Casing with frame - 0.6 degrees 480282/A...
Page 176: 461995 Tx Casing With Frame - 1 Degree
Kongsberg EM 304 MKII NEL Installation manual 461995 TX Casing with frame - 1 degree 480282/A...
Page 177: 461342 Tx Casing With Frame - 1.2 Degrees
Drawing file 461342 TX Casing with frame - 1.2 degrees 480282/A...
Page 178: 464947 Tx Casing With Frame - 2 Degrees
Kongsberg EM 304 MKII NEL Installation manual 464947 TX Casing with frame - 2 degrees 480282/A...
Page 179: 464947 Tx Casing With Frame - 2 Degrees
Drawing file 464947 TX Casing with frame - 2 degrees 480282/A...
Page 180: 437524 Tx Casing With Frame - 0.5 Degrees - Ice Protected
Kongsberg EM 304 MKII NEL Installation manual 437524 TX Casing with frame - 0.5 degrees - Ice protected 480282/A...
Page 181: 392136 Tx Casing With Frame - 1 Degree - Ice Protected
Drawing file 392136 TX Casing with frame - 1 degree - Ice protected 480282/A...
Page 182: 434910 Rx Casing With Frame - 2 Degrees - Ice Protected
Kongsberg EM 304 MKII NEL Installation manual 434910 RX Casing with frame - 2 degrees - Ice protected 480282/A...
Page 183: 440455 Rx Casing With Frame - 1 Degree - Ice Protected
Drawing file 440455 RX Casing with frame - 1 degree - Ice protected 480282/A...
Page 184: 330881 Rx Casing With Frame - 1 Degree - Cover Plates
Kongsberg EM 304 MKII NEL Installation manual 330881 RX Casing with frame - 1 degree - Cover plates 480282/A...
Page 185: 440413A Rx Casing With Frame - 1 Degree - Ice Protected
Drawing file 440413A RX Casing with frame - 1 degree - Ice protected 480282/A...
Page 186: 440413B Rx Casing With Frame - 1 Degree - Ice Protected
Kongsberg EM 304 MKII NEL Installation manual 440413B RX Casing with frame - 1 degree - Ice protected 480282/A...
Page 187: 440433 Rx Casing With Frame - 1 Degree - Ice Protected
Drawing file 440433 RX Casing with frame - 1 degree - Ice protected 480282/A...
Page 188: 426226 Transmitter Unit Dimensions
Kongsberg EM 304 MKII NEL Installation manual 426226 Transmitter Unit dimensions 480282/A...
Page 189: 426264 Receiver Unit Dimensions
Drawing file 426264 Receiver Unit dimensions 480282/A...
Page 190: 385422 Processing Unit Dimensions
Kongsberg EM 304 MKII NEL Installation manual 385422 Processing Unit dimensions 480282/A...
Page 191: 464618 Hws Dimensions - Mc330 - Rack Model
Drawing file 464618 HWS dimensions - MC330 - Rack model 480282/A...
Page 192: 409067 Fibre Cable Kit
Kongsberg EM 304 MKII NEL Installation manual 409067 Fibre cable kit 480282/A...
Page 193: 370275 Remote Control Unit (K-Rem) Dimensions
Drawing file 370275 Remote Control Unit (K-REM) dimensions 480282/A...
Page 194: 373962 Remote Control Unit (K-Rem) Wiring Diagram
Kongsberg EM 304 MKII NEL Installation manual 373962 Remote Control Unit (K-REM) wiring diagram 480282/A...
Page 195 68 document downloads ........7 International Marine Coatings ......68 electrical noise ........29, 31 Jotun ............68 EM 304 MKII NEL........8 audience flow noise ..........22, 30 this manual..........7 interference ..........30 auxiliary machinery machinery noise..........
Page 196 Kongsberg EM 304 MKII NEL Installation manual RS-422 ..........119 transducer ..........156 cables descriptiom list of system interconnection cables ....108 NEL (No Export Licemse) ......9 casings description installation ..........47 ambient noise..........31 cavitation bow thruster noise ........24 acoustic noise........
Page 197 Index 1 pulse per second (1PPS) ......120 heading sensor Hydrographic Work Station ......191 accuracy requirements for dimensional survey Processing Unit ........190 measurements ......... 160 remote control Processing Unit ...... 122 heating requirements remote control Receiver Unit ......127 sonar room ..........
Page 198 Kongsberg EM 304 MKII NEL Installation manual casings............. 47 Processing Unit .......... 82 mounting frames ........53, 55 monitor Receiver Unit..........76 environmental requirements......158 insulation requirements outline dimensions........152 sonar room ..........20 power requirements........155 intercom requirements weight ........... 152 sonar room ..........
Page 199 Index Transmitter Unit........154 installing the MC330 ........85 TX Unit ..........154 installing the mounting frames....53, 55 origin installing the Processing Unit ......79 vessel coordinate system......139 installing the RX transducer into the mounting outline dimensions frame ............. 58 display ...........
Page 200 Kongsberg EM 304 MKII NEL Installation manual storage temperature........157 power requirements........154 vibration..........157 shock............. 157 weight ........... 152 storage temperature........157 remote control vibration..........157 connection overview ........129 weight ........... 152 connection Processing Unit......122 connection Receiver Unit ......127 installing ..........
Page 201 Index TX transducer cable ........131 telephone requirements weight ........... 149 sonar room ..........20 steel conduit temperature design, manufacture and mount......49 requirements ..........156 minimum dimensions ........49 this manual storage temperature purpose ............. 7 Receiver Unit........... 157 target audience ..........
Page 202 Kongsberg EM 304 MKII NEL Installation manual cable plan ..........90 TX Unit brief description.......... 14 dimensions ..........151 environmental specifications ......156 installation ..........72 operating humidity........156 operating temperature ......... 156 operating voltage........154 power consumption........154 power requirements........154 shock.............

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