LRC ADN Tanker Ship Loading


On loading of a tanker-ship the system controls automatically the limit probe of the tanker ship as well as the complete loading process, by being connected directly to the floater probe in the ships tank nose 10h. During the filling process it is possible to interrupt/stop the loading from 2 indipendent points with our EX-Remote-Systems (emergency stop/dead-man). On the land side the system is fix connected to the control system of the harbour and controls the complete filling process via radio-control.

An overfill is not possible.

The system works without cable connection between land and ship and increases therefore the safety of work process of the operator considerably.

To guarantee long loading times (up to 36 hours permanent) the LRC ADN battery case is used.


During loading and unloading from products of the classification

  • class 2 (gases) and
  • class 3 (flammable liquid products),
  • UN 1280 (Propylenoxid) and
  • UN 2983 (Ethylenoxid und Propylenoxid, mixture with maximum 30 % Ethylenoxid), 


  • Two different positions on the ship (front and back) and on
  • Two different positions on land (directly at the entrance to the ship and from  adequate distance)

the procedure of loading/unloading must be able to be immediately interrupted by a system. That means: the quick-action-stop-valve which is placed directly on the moveable connection-line between ship and land must be closed. 

Each loading tank must have the following equipment:


A limit-switch for the release of the overflow safeguard, which has to activate at a maximum level of 97,5%; 

The limit switch has to release on board 

  • one  optical and
  • one acoustic alarm and
  • at the same time activating an electrical contact, which can interrupt the current-line and can initiate an action on land against overflow on loading.

The signal has to be sent to the on-shore facility by a 

  • 2pin,
  • Waterproof plug according to standard EN 60309-2:1999 for,
  • DC 40 to 50 V,
  • colour wight,
  • Positioning of the nose 10h
  • The plug has to be close to the land-connections of the loading- and unloading-tubes fix mounted on the ship.
  • The limit switch must be in the position to switch-off the own unloading pump.
  • The limit switch must be independent of the level-warning-device, but could be coupled with the level-indicating device. 

During unloading of a ship the ship-boardown-pump is used. This pump has to have the possibility to be switched-off by the on-shore-site. This has to be reached by interrupting the intrisically safe current-loop on board from on-shore position.


  • Security & Electronic Technologies GMBH
  • Head Quarter/Entwicklung/Vertriebskoordination
  • Aumuehlweg 3/1
  • A-2544 Leobersdorf
  • Tel: +43 2256 20177
  • Fax: +43 2256 20177-11