Kongsberg Simrad EK80 Manuel utilisateur

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EK80 HAT procedure

Doc ID: 401925

Revision: D

Project:

Product:

Status: This document is under configuration control at Kongsberg Maritime.

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KONGSBERG PROPRIETARY – see Statement of Proprietary Information

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Document history

Revision

Description of Change

First Issue

General update, new standard structure

General update, EC150-3C now included

Rewrite and simplify the procedure

References

Doc No

Description

395234

EK80 Reference manual

394149

EK80 Installation manual

438371

EC150-3C Installation manual

401926

EK80 SAT procedure

N/A

Delivery system interconnection and setup documentation

(supplied by ship owner)

All the Kongsberg referenced documents can be found and downloaded from:

https://www.kongsberg.com/maritime/products/mapping-systems/fishery-

research/es_scientific/ek80/ek80docs/

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 unless and to the

extent otherwise is expressly agreed in writing between the parties under contract.

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Table of contents

1Introduction....................................................................................................................4

1.1 Personnel and location........................................................................................................ 4

1.2 Test equipment ................................................................................................................... 4

2HAT Procedure EK80 .......................................................................................................5

2.1 Hardware and Software registration ................................................................................... 5

2.2 Visual inspection.................................................................................................................. 5

2.3 Test Procedure .................................................................................................................... 5

2.3.1 Check installation................................................................................................. 5

2.3.2 Configuration of interfaces .................................................................................. 5

2.3.3 Dimensional survey.............................................................................................. 6

2.3.4 Functional test of Echosounders.......................................................................... 6

2.3.5 Functional test of ADCP ....................................................................................... 7

2.3.6 Noise measurements ........................................................................................... 8

2.3.7 Data download..................................................................................................... 9

3List of Items...................................................................................................................10

4Check List......................................................................................................................12

5Customer Acceptance Form ..........................................................................................15

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1INTRODUCTION

The purpose of this Harbour Acceptance Test (HAT) is to verify that the Echosounders and/or

the ADCPs in the EK80 system are correctly installed, and fully functional. It is then ready for the

Sea Acceptance Test (SAT).

After the HAT, the Customer Acceptance Form must be signed by the relevant parties. The

completed document then becomes the official report. Data logged during the HAT must be

downloaded and stored on KM internal servers for future reference.

1.1 Personnel and location

This Harbour Acceptance Test is done onboard the vessel, alongside the quay. The test is done

by personnel from Kongsberg Maritime, or by a representative from an authorized dealer or

distributor.

The personnel performing the HAT must be qualified operators of the system and have received

proper training.

1.2 Test equipment

The following test equipment is required to perform this test:

•453635 – Shielded dummy load WBT

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2HAT PROCEDURE EK80

2.1 Hardware and Software registration

In Table 3 List of Items, fill in the information for all the units supplied by Kongsberg Maritime.

The items supplied can be:

•Computer

•Network switch

•WBTs

•Transducers

2.2 Visual inspection

Perform a visual inspection of all the units in the system. Make sure that they are mounted

properly and do not have any physical damage or scratches.

Also, check that the equipment and the belonging cables are installed according to the

requirements in the installation manual. Check that the units and cables are located so that the

risk of electrical interference is kept at a minimum.

2.3 Test Procedure

To start testing the system, make sure all units are powered on.

2.3.1 Check installation

Open the installation menu in the EK80 software and verify:

•All WBTs and/or ADCP transceivers are installed, including proper licenses

•All transducers installed and connected to the correct transceiver (WBT).

2.3.2 Configuration of interfaces

Verify that all ship interfaces are turned on and operational.

In the Installation -> I/O Setup configure the required inputs and outputs. Configure both the

serial ports and the LAN ports according to the system interconnection and setup

documentation.

As a minimum the following inputs must be set up:

•GPS position

•Heading of the vessel

•Motion data of the vessel

Note! If an ADCP is included in the system, the motion data must be in the KM Binary

format.

Note! If an ADCP is included in the system, it is essential that the ADCP is synchronised to

an available NTP server for accurate timing. The time synchronisation settings can be

checked in the ADCP Editing menu.

Other examples of inputs and outputs may be:

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•Transmit synchronisation

•Sound velocity sensor

•NMEA outputs

•…

In the checklist enter OK for the interfaces that are configured and tested OK. For interfaces not

configured enter N/A.

2.3.3 Dimensional survey

A dimensional survey must be present for the HAT to be approved.

Note! The accuracy requirements for the dimensional survey are listed in the EK80

installation manual and the EC150-3C installation manual.

Note! Modest accuracy requirements apply when your EK80 system is only used to

investigate objects in the water column. When used for Acoustic Doppler current

profiler (ADCP) measurements the accuracy requirements are increased.

In the Installation menu, enter the lever arms and angular offsets for all the sensors.

2.3.4 Functional test of Echosounders

Note! Make sure the transducers are in water when pinging is activated. Pinging in air may

damage the transducers. This is especially important to pay notice if the vessel has a

drop keel.

2.3.4.1

Normal operation

Activate one frequency at a time and start pinging. Verify that the echogram looks normal and

that the system detects the bottom at all frequencies.

If EC150-3C is part of the installation, also run this in echosounder mode.

Test the systems with both CW and LFM pulses, where applicable.

If the water is very shallow it might be necessary to reduce the pulse duration and power.

2.3.4.2

Transducer measurements

Measure the impedance and phase for all the echosounder transducers.

Note! This section does not apply to the EC150-3C.

2.3.4.2.1 CW pulses

Make sure all frequencies are set to active and that CW is selected for all. Enter the Diagnostics

-> TRANSDUCER menu. Select one system at a time and verify that the impedances and phase

are according to acceptance criteria.

CW acceptance criteria: 60Ω < |Z| < 95Ωand -30° < φ < 30°.

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2.3.4.2.2 LFM pulses

Make sure all frequencies are set to active and that LFM is selected for all transducers where

this is possible. Enter the Diagnostics -> TRANSDUCER menu. Select one system at a time and

verify that the impedances and phase angle plots are as expected.

Verify that the plots look normal, and that there are no large deviations between the different

sectors.

2.3.5 Functional test of ADCP

Note! Make sure the ADCP is in water when pinging is activated. Pinging in air may

damage the transducer.

Configure the EC150-3C to ADCP mode. Set the power and cell size to minimum. Reduce the

colour span of the ADCP to minimum.

Operate the ADCP in both CW and LFM mode.

Verify that you see the bottom return in the echogram and that all beams detect the bottom.

Check if you measure any velocities in the water column.

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2.3.6 Noise measurements

To fully utilize the system’s capabilities, it is important to achieve the best possible Signal to

Noise ratio (SNR) for the installation. The first step is to follow the guidelines given in the

installation manual.

For a ship installation, there are other systems and noise sources that inevitably will influence

the SNR, but still, it is important to optimize the installation and keep the influence at a

minimum. KM can provide a report showing the achievable noise levels under ideal conditions.

During the tests, the vessel should have the generators operational and not be running on shore

power. It is important to have the conditions as realistic as possible so that they reflect the

normal operation as close as possible.

Note! Be aware that the lower frequencies can be affected by noise caused by construction

work in the port or background noise in the sea and the surroundings.

2.3.6.1

Setup of system for noise checks

Note! The EC150-3C must be configured in ES mode during the noise measurements.

Set up all the frequencies with the following pulse configurations and settings:

•LFM, passive mode, pulse length 2.048ms, max power, fast ramping

•For frequencies where LFM is not available:

oCW, passive mode, pulse length 1.024ms, max power, fast ramping

•For EC150-3C in ES mode:

oLFM, passive mode, depth cell size 2, max velocity 10m/s, max power

•Echogram range 2000 meters

•Ping mode maximum. Bottom detection should be turned off

•Select TVG to Sv (20 log) and echogram threshold -70 dB

Record data for 5 minutes.

2.3.6.2

Collecting and checking noise data

2.3.6.2.1 Noise data with transducer

Activate all the systems and log data for 5 minutes.

Check the noise estimate value for all the systems in the Diagnostics -> Noise menu. The values

will vary from ping to ping. Do an average over 10 pings and enter the value in the checklist.

2.3.6.2.2 Noise data with dummy load

Note! This section does not apply to the EC150-3C.

Disconnect the transducer cables from all the WBTs and connect the shielded dummy load (P/N

453635). Activate the system(s) with the dummy load connected and log data for 5 minutes.

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Check the noise estimate value for all the systems in the Diagnostics -> Noise menu. The values

will vary from ping to ping. Do an average over 10 pings and enter the value in the checklist.

2.3.7 Data download

If no restrictions exist, download the data to an external disk and bring it home for storage on

the KM local server. The data will be used for future reference.

Alternatively, the technical report must include screenshots of installation menus and

echograms for documentation.

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3LIST OF ITEMS

Fill in the units included in the delivery

Item Item Item no Item information

1 Computer Model:

Serial no.:

2 Network Switch Model:

Serial no.:

3 EK80 Software N/A Version:

WBT #1

FW version:

Serial no.:

5 WBT #2 FW version:

Serial no.:

6 WBT #3 FW version:

Serial no.:

7 WBT #4

FW version.:

Serial no:

8 WBT #5 FW version:

Serial no.:

WBT #6

FW version:

Serial no.:

Transducer #1

Model:

Serial no.:

11 Transducer #2 Model:

Serial no.:

12 Transducer #3 Model:

Serial no.:

Transducer #4

Model:

Serial no.:

14 Transducer #5 Model:

Serial no.:

15 Transducer #6 Model:

Serial no.:

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