R22 ???

SteveL

Alex,

A few questions if I may...

Just having a look a the AII site

Have you found a any anomalies between the R10DS and the PSR -11-33-NM and NM1 cells?

What which one is better suited to a MK15.5 ?

Is the **- NM really better for 6 more months?? do they pack more goop in the same area?

and finally I notice on the non magnetic version (I currently have the R10DV cells in my breather) have a much larger sensing membrane than the R10 DS how does this affect the readings - as it seems the larger surface area cells have the slower response times (the AII cells show the same characteristics)

Many thanks

Steve L

AD_ward9

R10 and PSRs, yes. PSRs seem to be better product than R10s, R17s or R22s. PSRs drift much less, have much better quality control in our view, less statistical spread and their design avoids many failure modes that the Teledynes exhibit with a high frequency of occurance.
Recommend going by the Navy report: I posted a link to it earlier in this thread.
It is not just a question of goop (KOH sol, electrode areas), but contamination. The Teledynes have a wider statistical spread and we found contamination problems repeatedly which cause drift and inconsistent readings in Teledyne sensors. The contamination is apparent if you take the sensor apart: the electrode near the front membrane is tarnished by the KOH acting on organic contaminants, reducing the electrode area and causing a drop in output. There are three sources we are aware of of that contamination in Teledyne's process: this is not present in the AI process. I should add that in trying to work with these different companies, AI came across as having a real passion for quality at every level of their company. This shows in the product we tested.

I should add that this is not the end of the story with our AI evals: we do have some further tests to do before we give a complete thumbs up, but what we have seen is enough to recommend them over the Teledynes.
Different cells have different response times because the thickness of the membrane is different: it is membrane thickness not area you need to watch. Hope that helps.
Cheers,

Alex