An Auto Level should be checked at least every week or before any critical works.  This can be done easily and quickly by carrying out a two peg test.


The two peg test should be carried out by the team who will be undertaking the levelling task.  This has the added benefit of establishing the total ability of the levelling team.  If the team can’t accurately use the equipment, then even the most accurate of equipment will not yield satisfactory results.

Read more: How to Check an Auto or Dumpy Level

TopSurv Version Updates.

During November 2009 Topcon released the latest version of their TopSURV field controller software, TopSURV 7.3. Most users will only notice the changes within the menu system but there have been a substantial improvements hidden away that improve the tracking of prisms and satellites.

Read more: TopSurv Version Updates.

If you are seeing this page then you have probably followed an old link.  We have been updating this site recently so please make your way to the homepage from where you should be able to find the article you were looking for.