Cm/ms meter

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Simu

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Hi guys, so I recently got my ec-meter (EC -963) and the instructions received is kinda confusing. What I want to know calibration I can't seem to adjust it. The reading in RO water stays on 0.01. is that normal. And then what would the correct ms/cm reading be?
 

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saltwater60

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It all depends on your water. My TDS was really low and I’d get down to 0 for some time. Then mi e would go up to about 5-6 and I’d change my filters. It can be correct. What’s your waters starting point
 
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Simu

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Not really sure how the calibrate it. And what water to use?
 

saltwater60

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There should be calibration solution to buy.
This is a high side calibration but you’ll want to find one that’s closest to 0 tds because that’s the range you’ll be working in.
https://www.amazon.com/HM-Digital-1000ppm-Calibration-Solution/dp/B001FD6WZ8

Since I see the screw driver I’m guessing there is a set screw you turn to calibrate it. Here are instruction I presume to be similar. If it’s new you should have the manual or can download it. You should do that and read the manual.
Calibrate TDS/EC Meter
 

saltwater60

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Simu

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Thank you I'll get some calibration liquid. Like recomended. Hopefully I'llcome right then.... The ppm meters were a bit more expensive so I was hoping this one will be good. #iguessnot. Thanks so much
 

saltwater60

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Simu said:
Thank you I'll get some calibration liquid. Like recomended. Hopefully I'llcome right then.... The ppm meters were a bit more expensive so I was hoping this one will be good. #iguessnot. Thanks so much
I looked and the TDS ones are like $15-$20. Honestly I’m not trying to be rude by saying this but if you’re worried about an extra $5 don’t get into a saltwater fish tank.
I did it and if you penny pinch you’ll end up buying equipment 2-3x’s over and it will cost you way more in the long run. Ask me how I know. I did it.
 
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Simu

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I know. Been doing well so far. Going for a bigger tank in the new year. I'll look in to one of those refractometer one I've use it before.
 
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