so i got documentation on our pyroheliometers and pyranometers from the manufacturers, who knew the former professor. it's funny that some random slip of yellow paper had the guy who replied to the email on it, like a signposting. we cannot program the sun tracker that our pyroheliometer is mounted on because its set on automatic GPS tracking and there's really no reason to mess with the GPS or a consumer-end companion software for it. apparently our particular model was one of only a few that were ever manufactured.
i'm reading through the docs now, as they are quite brief and i hope to find some tangible insights.
"Please refer to the tracker instructions for installation and maintenance of the tracker. Ideally, the NIP is inspected daily for proper solar tracking using the diopter target. The window should be wiped clean with a lint-free soft cloth, being careful not to scratch the surface."
yeah i don't think anyone has ever cleaned this thing.