My Tips for Neptune Trident Calibration

[MrWellington]

I'm not buying that a Trident is more accurate than Hanna. Hanna Instruments has decades of experience and a proven track record with the scientific community. In contrast, the Trident is trusted by -- Neptune and those who buy the Trident.

I've been through two Tridents and learned to use those readings as trend analysis only because the measurements are notoriously wrong - even after calibration. I add/subtract what I know to be the difference between Hanna and Trident. I haven't tried to calibrate using Hanna numbers, but that sounds like it would be worthwhile.

This would be a GREAT topic for a "BRS Investigation" video.

 

[Reefer Matt Verified Media Partner]

I'm not buying that a Trident is more accurate than Hanna. The scientific community trusts Hanna instruments. It has decades of a proven track record. Whereas, Trident is trusted by -- Neptune, and those who buy the Trident.

I've been through two Tridents and learned to use those readings as trend analysis only because the measurements are notoriously wrong - even after calibration. I simply add/subtract what I know to be the difference between Hanna and Trident. I haven't tried to calibrate using Hanna numbers, but that sounds like it would be worth a try.

To each their own. The Trident is very reliable for me, in fact I have two of them. They both consistently read within the margin of error when compared to other hobby grade instruments like Hanna Checkers.

 

[RagnarReef]

I'm curious about using reagents from a different batch than the calibration solution (or using calibration solution from a different batch than reagents). I recently calibrated my Trident but did not change out any reagents before or after and the calibration solution was from a different batch. Shortly thereafter all 3 readings went haywire and did not match manual testing using Hanna checkers. No other explanation for why the results changed so drastically. This from the Neptune webpage...

"With every 2-month reagent package is a calibration standard. In every 2-month package Neptune Systems guarantees the reagents are from the same “batch.” The calibration standard allows your Trident to calibrate to that batch. Generally we recommend that at least 2-3 tests are completed on the new batch of reagents before attempting a calibration."

In other words when calibrating, only use the calibration solution that came with the reagents currently in use?