Mike Fort says: 'Zeiss and Spectra Precision have gone into partnership and it will be interesting to see whether they keep this instrument rather than the Constructor 100. Peter Lloyd says: 'Good distance accuracy and highly waterproof but lacks in angle accuracy, battery life, and has no guide light.' That is as good a recommendation as I can think of.' Mike Fort says: 'Laing has standardised on this instrument for use on their sites. Optical plummet is in the tribrach which is not so desirable.' Peter Lloyd says: 'Guide light is a useful feature but lacks in angle accuracy, range, battery life. Some regard the Geodimeter programs as unfriendly but once you get used to the logic they are quite easy to use.' Mike Fort says: 'A recent replacement for the Geodolite, it shares many features with the 600 series including the detachable keyboard/computer. Guide light for setting out: Though not essential, this device can speed up setting out by visually directing the chain man to the required position. Internal memory: The bigger the memory the more information you can store - classified in points stored.
Nikon dtm 520 battery plus#
In-built programs: Setting out, resection/free station and survey programs are essential and are available on all the total stations reviewed here, plus the ability to upload/download data from pc's. Weight: Lighter may not necessarily be better but who wants to end up with arms of simian proportions after lugging the instrument around site? Weight plus tribrach plus internal battery is listed. IPX- 6 provides the best rain resistance but IPX-4 and IPX-5 will work in heavy rainfall. Weather resistance: The IPX rating for the instrument is quoted.