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Trimble Mini Prism for Horizontal & Vertical Mount

Description

This prism from Trimble is a mini monitoring prism that can be mounted horizontally or vertically. Mounting can be done directly into a surface using screws such as tunnel convergence targets.

Prism diameter is 25mm, with an 86mm horizontal axis height from the mounting point.

Mounting nail for Wild/Trimble monitoring target. Mounting Screw

Specifications

Model:Mini prism for horizontal and vertical mount
Manufacturer:Trimble
MPN:46-MP-MON
Height Offset:86.0 mm
Absolute constant: -17.50 mm
Leica constant: +16.90 mm
Weight:100 g

Mini prism for horizontal and vertical mount FAQ

Below is a list of frequently asked questions about Mini prism for horizontal and vertical mount.

What is the prism constant for the Mini prism for horizontal and vertical mount?

The absolute prism constant (true value) for the Mini prism for horizontal and vertical mount is -17.5mm. The prism constant as defined for Leica instruments for Mini prism for horizontal and vertical mount is 16.9mm. For a more detailed explanation on prism constants please see this article.

Can I use the Mini prism for horizontal and vertical mount with a Leica instrument?

Yes, you can use the prism with a Leica instrument as long as you set up the correct prism constant in the instrument settings.

What is the prism constant value that I need to use with a Leica instrument?

In order to use the Mini prism for horizontal and vertical mount with a Leica instrument you should use 16.9mm as the prism constant value.

What is the height offset of the Mini prism for horizontal and vertical mount?

The Mini prism for horizontal and vertical mount height offset is 86.0mm. This is measured from the mounting point to the centre of the prism.