Anyone have experience working with or alongside a Ziplevel 2000? I'm helping a buddy determine difference in elevation from alley to his back door, he mentioned hearing about this Ziplevel that will report real world elevations and differences. I looked it up, it's a pressurized hydrostatic altimeter. It has some pretty amazing specs (2mm tolerance or better for differential leveling). Just seeing if anyone has seen them at work. We will just be using a good old fashioned auto level & Philadelphia rod.
Clear plastic tubing filled with water (colored if you like) is cheaper than all of those.
Huh, interesting.
I went to the website to see what it was about.?ÿ I don't know much about atmospheric pressure but I didn't think there would be a lot of difference in 5 or 10 feet.?ÿ I guess this gadget can measure well enough to do that though.
We use a zip level sometimes.
They can be very handy for getting into tight places. They are useful for doing floor level surveys in earthquake damaged houses
But they need to be used with a lot of care to get the accuracies quoted.
Calibrate at the start
Make sure the line is full supported along its length, and that it is not in both the sun and the shade
Check back on your calibration point at the end.
?ÿ
@dave-lindell, I tried to tell them that. You know how people are now days though... they need the data in an excel file to understand it.
@jimcox good to know. I was hoping to tell him that it's a piece of junk and to always use a surveyor...