Reverse Wiring a Vane on Symphonie

When a vane is wired "in reverse", that is vane (-) to logger excitation, vane signal to logger signal, and vane (+) to logger (-), the readings will mirror from east to west across the north-south axis.

For example, a reading of 80 degrees for a normally wired vane would become 280 in the reverse wiring case. Similarly, a reading of 100 would become 260.

If you have reverse wired your vane, this can be corrected in the SDR software by applying a negative scale factor (-0.351) and adding an offset of 360. This will get you back to "normal wiring".

If an additional offset needs to be accounted for, you will then need to add that offset on top of the 360 offset.

Example:

A vane is reverse wired and the vane reference is pointing exactly south instead of north.

With a normally wired vane, the user would enter an offset of 180 into SDR.

In the reverse wire case, the user would change the scale factor to -0.351 and add an offset of 540.