Nutradip tri-meter 204 help!

[johnnycheech]

Hi to all, first time poster,

I have a nutradip trimeter 204 and I cannot work out all this ppm and EC business. I know it is measuring nutrient as microsiemen factor (1.0)X(microsiemen) but how do I turn this into ppm or EC. I was trying to calibrate it today and was using a solution with a ppm of 1820 and an EC of 2.8. My meter was reading 700us. Underneath the reading it says multiply by 10?

I f anyone can help I'd really appreciate it, i'm totally lost!

Thanks

JC

 

[Lazyman]

Uh, I have one of those but it reads in PPM, never even heard of a microsiemen. There are conversion charts online for anything though, just check out google and look up "convert ms to ppm" or whatever you want.

 

[Surrender]

no idea if this is right but I'm looking at the same thing with my "EC" tri-meter. It says "650" for the EC where I was expecting a number more like, say, .85.

1 millisiemen (mS) = 1000 microsiemen (µS) I have learned. This is on the back of the manual with the tri-meter too doh

Maybe 1 ppm TDS= 1.56 microS/cm.

This seems to confirm it

more than I really needed to know but I plan to re-read later

o here's a good one

 

[FreezerBoy]

All of our meters measure EC and nothing but EC. PPM and TDS are simply EC reduced to babel and in no way reflect Parts Per Million or Total Dissolved Solids.

More commonly written in mS/cm (millisiemens per centimeter) µS/cm (microsiemens per centimeter) is also used. 1mS/cm=1000µs/cm.

If your meter is measuring an EC 2.8 mS/cm solution then an EC display will read 2.8 or 2800. Those are the only two possibilities. Any other number means you're not displaying EC or the calibration fluid was mislabeled.

FWIW at a conversion factor of 700, 2.8 EC= 1960 ppm, not 1820.

Fortunately, plants are illiterate. They can't count. If you can track numbers up and down, that's all you need

 

[Lazyman]

Good info FB, thanks for the data!

 

[johnnycheech]

Thanks guys, think I got it now!