But can you TRUST it?

[Dag]

Can anyone suggest a good source for a NIST traceable thermometer?

 

[JER-Z]

<a href=showthread.php?s=&postid=7133191#post7133191 target=_blank>Originally posted</a> by Dag
Can anyone suggest a good source for a NIST traceable thermometer?

FLW does all of our NIST traceable calibrations...We buy alot of calibrated instrumentation from them as well.

http://flw.com/

 

[JB NY]

<a href=showthread.php?s=&postid=7133020#post7133020 target=_blank>Originally posted</a> by Dag
JB,

Will the Aquacontroller go down to 32 degrees?

Yes it will

 

[Dag]

I asked Curt at Neptune about calibrating the Aquacontroller by setting it at 32 degrees. He said it was a very bad idea. Not sure why.

 

[prop-frags]

As several of you had suggested, I used a two-point test to calibrate the new hannah unit, then used it to calibrate the others that we're using. Those that were off by more than a couple of degrees that cannot be adjusted, I'm going to use for something else like refrigerator or back porch

As for the other types of measurements (besides temp), I'm not real sure how to approach yet. I would love to calibrate some of my water parameter tests against lab-grade devices or tests. Has anyone else ever attempted to calibrate say, PO4, Alk, or Ca?

I know hannah makes a PO4 meter that is supposed to be highly accurate. Hmmm, the whole topic has me wondering now....