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Trimble S5 HA/VA Collimation & Survey Pro’s Collimation Values
I’m a new user of a Trimble S5 robot. I have recently ran the instrument through an HA/VA Collimation routine using the instrument’s own menu screen. My result was correction values of HA:0.0001 and VA: 0.0008. In the data collector running Survey Pro, I went to “Manage Instrument” and to the “Collimation” menu and that displays: Current Collimation Errors: HA: 0″, VA: 2″, Trunnion Axis Tilt: 0″.
My question is this, are those correction values in Survey Pro being added onto the correction values in the instrument itself? Is there a way for me to clear the correction values in Survey Pro? (There is nothing on the screen to indicate that I can.)
Thanks!
-Garry -
4 Replies
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Well, my dealer says the data collector does not store any correction values, that they are stored in the gun and therefore it should be displaying the values the gun has stored in it. Maybe in this case the data collector hadn’t retrieved the latest values from the gun? Hmm. . .
Another question, how do you test the trunnion axis that it is in adjustment or if out and needs run through a trunnion axis calibration routine? Is it as simple as sighting an object at a steep VA in Face 1, zero the HA, then flop the scope, sight the same object in Face 2 and compare the two HA??s to see how far off 180-00-00 it is? I’ve been doing HA/VA collimation’s (calibrations) in Topcon & Nikon total stations for years, but have never done a trunnion axis calibration. I guess I figured if the gun got to the point of needing that done that it was time for dealer service. Now with the S5 the dealer is recommending the user run through all the “adjustments: Compensator Calibration, HA/VA collimation, Trunnion Axis collimation, & tracker collimation. These dealers & manufacturers must think us surveyors always survey on nice flat solid ground (concrete), with good sharp targets available, with no wind, and plenty of spare time!
-Garry
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Around here, getting a couple of hours without sunshine (heat shimmer) is the issue.
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Might be a units thing. 0.0008 decimal degrees is 2″ of angle, in which case you’re in good shape. 0.0001 decimal degrees is 0.36″, so would round down to 0″. I think you’re golden.
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I was assuming it’s in the format: D.MMSS, but I’m only assuming! The manual doesn’t say.
-Garry
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