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Online 2405 Operating Manual

Acoustic receiver self-contained rov held
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ONLINE ELECTRONICS LTD
Online Electronics Ltd
Online House
Blackburn Business Park
Woodburn Road, Blackburn
Aberdeen
AB21 0PS
UK
+44 (0)1224 714 714
2405_5001_A01
www.online-electronics.com
sales@online-electronics.com
ACOUSTIC RECEIVER
SELF-CONTAINED ROV HELD
OPERATING MANUAL
The 2405 is a standalone, battery powered, acoustic
receiver system which can be used by an ROV for
tracking and locating underwater acoustic pingers
Page 1 of 14

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Summary of Contents for Online 2405

  • Page 1 ONLINE ELECTRONICS LTD ACOUSTIC RECEIVER SELF-CONTAINED ROV HELD OPERATING MANUAL The 2405 is a standalone, battery powered, acoustic receiver system which can be used by an ROV for tracking and locating underwater acoustic pingers Online Electronics Ltd Online House Blackburn Business Park...
  • Page 2 (IF APPLICABLE) (IF APPLICABLE) Approved Date ca , 09:40:14, 06/10/2017 Date Summary of change 11/08/17 CR00485: Was 2405 ROV ACOUSTIC RECEIVER MANUAL RevA12. CR00380: Address change. CR00499: Front cover update. 06/10/17 CR00499: Cover page update COMMENTS: 2405_5001_A01 Page 2 of 14...
  • Page 3 CONFIGURE ....................11 3.5.6. SHUTDOWN ....................11 MAINTENANCE ....................12 4.1. BATTERY REPLACEMENT ................... 12 4.2. 2405 O-RING REPLACEMENT ................13 4.3. ROUTINE MAINTENANCE AND STORAGE ............. 13 DISPOSAL OF UNIT ....................14 WARRANTY ......................14 2405_5001_A01 Page 3 of 14...

  • Page 4: General Description

    The system consists of a 2405 unit and 2401 directional hydrophone. Acoustic signals are displayed as they are received by the 2405 unit on a 2.7” graphical display and three high brightness LEDs positioned below the display. The 2405 system requires no interface other than an ROV camera to observe the received signals on the display.

  • Page 5: Specifications

    2405 Bleedscrew material ........... ALLOY BRONZE CA104 EN 12163 2405 Window material ..................ACRYLIC 2405 Endcap O-rings ......... 2x BS 50-243 NBR70 with 2x 250-243 PTFE BURs 2405 Window O-rings ........1x BS 50-236 NBR70 / 1x BS 50-237 NBR70 2405 Bleedscrew O-ring ..............

  • Page 6: Operation

    As with all acoustic systems, the ambient acoustic noise existing in the environment will have a significant impact on the performance of the 2405 system. Some of the most common sources of ambient acoustic noise are vessel engines, water turbulence and rough weather.

  • Page 7: Self Test

    5 evenly spaced pulses should be visible on the screen and a 1SEC repetition rate should also be detected at the bottom right hand side of the screen as shown. The 2405 will remain in TEST MODE for 4 minutes or until the operator manually enters PINGER MODE.

  • Page 8: Turning On

    3.3. TURNING ON There is a hole on top of the frame that allows access to the control button of the 2405 module, to turn the unit on simply press and hold the control button until the COMPANY LOGO appears on the screen. This should take approximately 5 seconds.

  • Page 9: Operating Screen

    The operator can select and modify several items on this screen. Individual items are highlighted (MENU is shown highlighted here) by using long presses on the 2405 CONTROL BUTTON to move between items. Once the required item is highlighted a short press on the 2405 CONTROL BUTTON will select or modify the highlighted item.

  • Page 10: Single Button Menu Interface

    3.5.1. EXIT The first item on every page of the menu system is EXIT. If no other selection is made then EXIT is selected by default and the 2405 will exit the menu system and return to the OPERATING SCREEN.

  • Page 11: Leds On / Leds Off

    ON. It is imperative that the 2405 unit is turned OFF using this command rather than simply disconnecting the battery so any memory storage processes are allowed to terminate prior to turning OFF.

  • Page 12: Battery Replacement

    MINIMUM OF 6 HOURS PRIOR TO OPENING. 4.1. BATTERY REPLACEMENT Observe how the cable is routed between the 2405 unit and 2401 hydrophone before carefully loosening and detaching the cable connections at the 2405 and 2401 and feeding the cable through the forward hole in the mounting plate so that the mounting plate can be removed without damaging the cable.

  • Page 13: O-Ring Replacement

    ONLINE ELECTRONICS LTD Ensure that the 2405 is turned OFF before disconnecting the battery. The rubber battery cover is simply pulled over the battery guides. Replace the battery and ensure all wires are installed neatly and protected from accidental damage.

  • Page 14: Disposal Of Unit

    ONLINE ELECTRONICS LTD 5. DISPOSAL OF UNIT Online Electronics Ltd takes its responsibilities under the WEEE Regulations extremely seriously and has taken steps to be compliant in line with our corporate and social responsibilities. In the UK, OEL has joined a registered compliance scheme WeeeCare (registration number WEE/MP3538PZ/SCH).

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