Analytical Industries Sensors outperform Teledyne in six-year study

teksimple

You can't go wrong buying from Dive Rite Express. That being said...

EVERYTHING is via airmail from Hawaii, so shipping times via USPS are generally about the same or less than if you were being shipped stuff from California to say, Virginia.

To use the RBWmember coupon on CCRsense.com, you will need to create an account FIRST, then enter your coupon code. If you skip to Paypal Express Checkout, it will unfortunately (in the interest of an expedient shopping experience) also skip the ability to enter a coupon code. Nonetheless, I will refund that discount amount if omits that step by accident. I should have specified that on the checkout page, so my mistake.

I had no idea the response would be like this. I have a PILE of sensors to ship out tomorrow morning...

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teksimple

Not much to say on that subject other than the APD10 cell was specifically created for Vision electronics. Will have a better answer shortly.

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"I don't know the percentage of the Internet that's valid, do you? Jesus, it's scary." - Hunter S. Thompson

starfishdiving

[quote=n2diving;105969][quote=onetime]Just this morning I bought 3 from Dive Rite Express (ok, they're R22 and not AI). Whay not use the Aii model: PSR-11-39-MHD as the replacement for the Teledyne R22D? AII lists the PSR-11-39-MD as their replacement unit for the R-22D. However the MHD is listed as a Meg specific cell.
Do I assume (dangerous word) that there is a different voltage range between the two?

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Randy Williams
Seattle, WA USA

Con***ius say: "Man who say it cannot be done should not bother the man who is doing it."

Steve

[quote=starfishdiving;105979][quote=n2diving;105969] I asked them that very question a day or so ago. I will report back when I have an answer if someone else doesn't pipe up first.

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onetime

[quote=starfishdiving;105979][quote=n2diving;105969] Good question, I have no idea. I'll be interested in hearing the answer if someone finds it out.

Ben Field

The link provided is a bit misleading as it does not contain Teledynes results, its also abit hard in AII sensors in places... not sure its a great advertisment but your offer is!

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teksimple

[quote=Steve;105989][quote=starfishdiving;105979] The PSR-11-39-MHD is the exact same sensor as the PSR-11-39-MD, with the exception of testing with a slightly higher output during the QC checks at the end of the PSR-11-39 production run cycle. You might say it is like a an Intel CPU chip when it comes out of the clean room. Same chip, same manufacturing process, but the chip is rated for a higher clock rate based on some specific criteria. There is no difference in life, quality, or guarantee.

A more important decision is to replace your sensors regularly. I thought the very narrow low-end voltage criteria difference was not enough to make it worth stocking the MHD, but I can be convinced otherwise

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"I don't know the percentage of the Internet that's valid, do you? Jesus, it's scary." - Hunter S. Thompson

n2diving

Ah... the sensor output mv range issue, the spec is 8.5m to 13mv in air, new ones should actually be at the upper end of this range, not the lower end, in fact we recommend discarding any cell less than 8 mv in air.. the binning thing came around because a lot of the Teledynes were coming out of the bag in the 8mv range for air, right on the edge of the 8.5 mv spec.... some handsets have cutoffs below which they refuse to calibrate.... so a cell that for sure comes out at the nominal 10mv in air is, in theory, prefered. In practice since I switched to selling the AI's, I've never personally experienced one that came out of the bag at less than 10 (usually the come out new in range of 11-12 mv) and never had a customer return the AI's for less than 9... we used to have this problem all the time with the Teledynes. Sometimes if you let the Teledynes sit for a few days they would come up to 9mv, often just barely above 8.5 mv. So in my opinion AI is solving a problem they don't really have, just to appease the people burned by the Teledynes. I don't bother stocking the MHD version (which would be a very slow mover with slow turnover).... If a customer was concerned about it (I've had one or two) I offered to open the package, let them aclimate and test them myself before shipping. But frankly, I've never had the problem with the AI's anyway.

dave t

As far as I know the lower the Mv output (within reason) the more stable and longer lasting the cell will be. I had three teledyne r22d's that had a nominal output of 8.5mv and they were three of the most stable and long lasting cells I have ever used.

Not sure why though!!

Dave

schford

Thats what Leon told me as well Dave....

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