Good morning. I'm not sure if this has ever been addressed, but I need some help from the Trimble 5600 users. I recently purchased a Geodimeter Remote Target 602, Part No. 571 202 220. The prism works great except for one issue. I don't know the prism offset.
I have searched the internet and called a local Trimble dealer and have had no success. I am hoping that someone on this site can help.
Here is what I know.
There is a diagram on the back of the prism that shows the unit being approximately 20mm thick and approximately 130mm tall. The actual prism glass screws into the RMT unit and approximately 60mm in diameter.
Any help would be great and thanks in advance.
Hi,
ours was set at 2 mm on the controller,
5600 with Trimble survey controller software
Chr.
yup 2.0 mm is correct. Deceiving though with the diagram!
Thanks. And this for the Super Long Range Version? Just confirming.
Thanks again for the quick response.
2mm is for the 360° prism part 571 204 312
Indeed the mini prism,
did not know there was a 360° long range version.
Chr.
This is not 360° prism. It looks more like a standard prism.
zero
2mm equals Zero (in my world) for 360 and zero for long range, plus, if you are using any aftermarket prisms for traversing, use the zero offset side and you never have to worry about busted prism constants again. My 2 cents, Jp
Sorry,
my mistake.
This manual does not mention a prism constant but the prism that fits the RMT602 is listed here (in dutch) with a zero offset.
Chr.
I have been searching for a used one (we have worked without it, but would like one) - do you mind me asking what you paid for this, and was it new? from my understanding, the prism holder/diode portion is part # 571-202-220 - the actual prism is # 571-126-061.
thanks. you can send an email is you wish - email is in profile.
The brick prisms are definitely 0 offset. 360 is 2 mm.
I wrote the prism constant on my prisms because it wasn't on there anywhere. I knew what I purchased so I wrote it on there. I had some old prisms that I couldn't tell what they were so I tested them on a 50' baseline then wrote the constant on there.
Beware of the Leica 360 with 23.1 written on it, it is really -11.3 which totally makes sense.
Do the textbook check with 3 points in a straight line and 3 measured distances.
(AB+const) + (BC+const) = (AC+const)
so
const = AC -(AB+BC)