Does grant funded equipment result in authorship? Just a quick question regarding authorship. Recently, a PI won a grant, which was used to buy some computer equipment (~$1000 piece of computation equipment along with some other equipment not relevant to the post).

I am a student that has been using the piece of equipment, as it was not being used by their students.

I am now going to be submitting a manuscript, which used the equipment as mentioned above. Does this entail the PI who won the funds to pay for it authorship? Or, as I believe, just acknowledgment (for both the grant and the PI who won it)?

EDIT 1: I should note, my research has nothing to do whatsoever with the PI's grant or their research.

EDIT 2: I found this interesting paper on the subject.
Authorship, no, not if the only contribution was a piece of equipment. Authorship at a minimum requires an intellectual contribution to the project.

Acknowledgment, perhaps. $1000 sounds like a fairly minimal investment for an acknowledgment even, but the standards for what is worthy of acknowledging are much more up to the authors of a given paper. If the work truly would not have been possible without the equipment, then it may certainly be appropriate. If you were just borrowing someone's unused computer, that doesn't sound acknowledgment-worthy to me.

On a brief note in the other direction: some people come here and ask authorship questions where they feel someone (usually an advisor) doesn't deserve authorship, but in reality they made a substantial intellectual contribution to the project. Norms for this vary by field, but make sure when you are assessing answers you get here that you are describing this PI's complete contribution accurately.