LSI LASTEM GRETA Installation Manual

Geo resistivimeter for time-lapse analysis

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Environmental monitoring solutions
Installation manual

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Summary of Contents for LSI LASTEM GRETA

  • Page 1 Environmental monitoring solutions Installation manual...
  • Page 2 Notes on this manual The information included in this manual is subject to changes without notice. No part of this manual may be reproduced in any form or by any electronic or mechanical means, for any use, without LSI LASTEM written permission.
  • Page 3: Table Of Contents

    GReTA – Installation manual Table of contents Safety requirements ..........................4 General requirements ........................4 Specific requirements ........................4 Pre-installation requirements ......................5 1.3.1 Power connection ........................5 1.3.2 Internet connection ........................5 Installation ..............................6 Plinth installation ..........................6 Excavation of the trench ........................
  • Page 4: Safety Requirements

    GReTA – Installation manual 1 Safety requirements Leggere le seguenti norme di sicurezza generali per evitare lesioni personali e prevenire danni al prodotto o ad eventuali altri prodotti ad esso connessi. Per evitare possibili danni, utilizzare questo prodotto unicamente nel modo in cui viene specificato.
  • Page 5: Pre-Installation Requirements

    LSI LASTEM has carefully considered the safety conditions for those working with GReTA-ONE, in particular the situation in which a subject could come into contact with the measuring electrodes. In this regard, the following should be considered: •...
  • Page 6: Installation

    GReTA – Installation manual If a local Ethernet network is available at installation site, the system can be connected through a LAN cable. In this case an Ethernet line should be laid in order to reach the plinth and have sufficient spare cable to reach the G.Re.T.A.
  • Page 7: Unwind Of The Cable

    GReTA – Installation manual 2.3 Unwind of the cable The two cables come rolled up on reels, start unwinding the cables starting from the end of the trench and coming towards the centre of the profile, where the plinth is installed. The first electrode must be positioned in correspondence of the m.
  • Page 8: Mount The Pole And The G.re.t.a. Box

    GReTA – Installation manual 2.5 Mount the pole and the G.Re.T.A. box Meanwhile preparing the cables, mount the pole, the box and possible additional sensors on pole. 2.6 Insert the cables in the trench and bury the electrodes When the trench is buried, insert the cables inside the trench, taking care of the distance of the central electrodes (last electrode of first cable and first electrode of second cable) from the pole, the must be cor- rectly spaced (e.g.
  • Page 9: Switch On The Device And Do The Contact Resistance Test

    GReTA – Installation manual Then cover only the electrodes with soil and press them to obtain a good contact, water and bentonite can be added the enhance the contact. 2.7 Switch on the device and do the contact resistance test Switch on the system and start the contact resistance test as described in Chapter 5 “Installation, first start-...
  • Page 10 GReTA – Installation manual LSI LASTEM SRL INSTUM_04546_en Pag. 10 / 10...

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