a question about calibrating a salinity monitor OR ...

[fcmatt]

a question about calibrating a salinity monitor OR
find the possible problem on marinedepot's webpage
when it comes to calibrating this device.

the url is:
http://www.marinedepot.com/md_viewItem. ... uct=AM1115

can anyone spot the problem when it comes to calibrating this
device with marinedepot's recommended solution?

thanks.

i think i made a mistake last week... trying to iron it out now by
contacting pinpoint and marinedepot.

 

[fcmatt]

Matt, I'll try to speak with Marine Depot about this. No It's not the
same....Lou Dell/AMI

i wonder how many people marinedepot led astray with their
mistake on their webpage.

i contacted them also, hopefully they change it.

 

[fcmatt]

> Hey Matt,
> I spoke with the proper people at Marine Depot and they will change the
> link to reflect the proper product. As a token of my thanks; send me your
> mailing address for some free salinity calibration fluid....Lou Dell/AMI

what a great guy. great product. great company.

 

[fcmatt]

There are a few issues with the 53, 000 uS fluid not the least of which it
is only 20 mL and the PINPOINT Fluid is packaged as 60 mL because that is
the minimum that one would need to calibrate the PINPOINT probe.
While it is true that 53,000 uS and 53.0 mS are the same equivalent
number you have to look at the intended use. The 53,000 uS fluid is made
from mostly KCL and NOT a balanced seawater standard. The PINPOINT Fluid
53.0 mS is esentially seawater. This becomes particularly important with a
refractometer or the PINPOINT Salinity Monitor.
Hope this was helpful....Lou Dell/American Marine Inc.

 

[fcmatt]

How did you feel about using ro/di water in a super clean container to
calibrate? that was marinedepot's suggestion?


In all fairness to Marine Depot that suggest is basically the manufacturers recommendation and it does not work unless
your objective is to measure RO/DI . Most people find that there is a significant salinity measurement difference if you
calibrate with RO/DI and then measure the 35 ppt standard fluid.
Many refractometers that claim "Automatic Temperature Compensation" and you can verify this by measuring any fluid with
the refractometer and then putting it in the fridge with the water sample. If it reads different; it's not temp
compensated.....Lou

 

[Len]

Hehe. It sounds like you're talking to yourself

 

[trido]

8) Ive never seen anyone work up questions and responses in a thread and get all the answers they needed. See, you didnt need any help in a forum at all.

A little creative thinking and you figured it out all on your own after just a couple hours. :wink:

RDO isnt one of the busiest forums on the net. Sometimes it takes more than an hour or two to get intelligent answers from people. I was at work and am very sorry I didnt have a computer beside my skill saw so I could help you with your problems. :lol:

Again, I am very impressed with the whole Q and A thing you did all on your own.

 

[fcmatt]

you would not be so impressed if you saw me cursing and
swearing for messing up my salinity on my tank. thankfully
i went about a whole 24-32 hours with high salinity before i
started the drip to correct it.

i am now concerned how many people, just like me, ignored
the word conductivity on the package and zeroed in on 53,000
uSiemens/cm, which i also know as 53.0 ms.