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  #1  
Old 09-12-09, 23:00
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Who calibrates their in line TDS meter?
Who does this, how often and is it a simple task of droppin the probes one by one into the solution?

Had my RO Man unit coming up a year and never calibrated the inline TDS meter, not ever sure if there is any dial to calibrate it

It's one these ones:

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Old 09-12-09, 23:07
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Posh git lol, I have the handheld RO-Man TDS
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Old 09-12-09, 23:56
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Hi Cav, same meter as mine, I haven't ever calibrated it but have been thinking about it recently as I saw some calibrating fluid for sale and figured it wouldn't do ant harm.
I couldn't find a calibrating thingy when I looked although that was when I got it a year ago-ish, Miles.
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Old 10-12-09, 00:03
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Quote:
Originally Posted by milo909 View Post
Hi Cav, same meter as mine, I haven't ever calibrated it but have been thinking about it recently as I saw some calibrating fluid for sale and figured it wouldn't do ant harm.
I couldn't find a calibrating thingy when I looked although that was when I got it a year ago-ish, Miles.
I know them come factory calibrated but I recall a thread on here once about calibrating in lines. I will have to check on the back after I finish work on Sunday.
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Old 10-12-09, 00:16
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The instructions are here Wayne, according to the instructions there is a screw on the back.

Doesn't answer your question really but may help.

http://www.ro-man.com/instructions/dm1.pdf
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Old 10-12-09, 00:29
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Quote:
Originally Posted by rattters View Post
The instructions are here Wayne, according to the instructions there is a screw on the back.

Doesn't answer your question really but may help.

http://www.ro-man.com/instructions/dm1.pdf
Well aint you just the font of all knowledge
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Old 10-12-09, 00:35
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Likewise, i've depended on mine being factory preset. Only about a month old so far so when should I start to recalibrate it ???
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Old 10-12-09, 05:10
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As far as i am aware TDS meters are like Refractometers they need calibrating on a regular basis ie every time they are used. If they get knocked they can go out of sinc and give a false reading. Not a lot of folk do calibrate them on a regular basis as a lot dont know you can.Eric
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Old 10-12-09, 07:12
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Trust me...its worth doing at least every couple of months....better still, add a second single inline meter as a backup.

http://www.manhattanreefs.com/forum/...es-callin.html


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Old 10-12-09, 07:19
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Quote:
Originally Posted by simon garratt View Post
Trust me...its worth doing at least every couple of months....better still, add a second single inline meter as a backup.

http://www.manhattanreefs.com/forum/...es-callin.html


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Just ordered some calibration solution from Osmotics as I also needed some DI resin
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