You will need to get into the prism settings on it to check this. I suspect the mini-prism setting on your instrument may match the second type. There are 2 Leica mini prisms that look very similar/identical but have different prism constants.ġ) GMP111-0 (current model) has a Leica 0.0 constant (so -34 on other instruments)Ģ) GMP111 (older model) has a Leica +17.5 constant (so -17 on other instruments) Good luck, and please let us know how things go. We used zero offsets on that entire project.
I used the same method above when checking my prisms before starting a very large construction project.
If they are not, you should have the constant needed to adjust the shots.Īs I mentioned, it has been a long time since I have used Leica gear, so please double check the information I have stated regarding the Leica prism offsets. Shoot the distance with the mini prism, and then shoot the same distance with the larger prism. I would take the instrument outside, and set two points a known distance apart that you can measure with a tape. I would think that if you used a Leica mini prism with a zero offset setting, and then used a larger Leica prism with the same setting, you SHOULD be okay. I seem to remember that Leica 0mm offset settings in the software actually have a (-34mm offset) physically. Manuals for almost any other total station from Wild / Leica Geosystems explain the required prism constant settings.It has been about 7 years since I have used Leica equipment, so I am going off of memory. You might try for obtaining a printed manual for the TC1000. The mentioned types are from Leica, but other prisms will work just as well, just make sure you set the constant correctly in the instrument. +17.5 for mini prisms (GMP101/102) as are used commonly in construction and monitoring +34.4 for a true zero constant prism or reflective sticker This prism has an actual (true) prism constant of -34.4, which allows it to be put centred onto the pole avoiding errors when it's not exactly pointed right.Īs a consequence you need to set the prism constant to: Wild has from the very beginning used a standard round prism as a reference and this instrument must be set to a prism constant of zero for this standard round prism. The TC1000 can use any reflector you like.
0 kommentar(er)
