Snakeskins

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Oct 18, 2018

#1

I have a Etekcity tds meter which I'll use to measure my tap water with for my soil grows but I'm confused about the testing liquid I bought. I don't know what unit of measurement to look for when adjusting the actual device.
On the bottle it says:

1500 ppM (NaCI scale)
2190 ppM (442 scale)
2930 S (microSiemens)

Does anyone know what those numbers mean and what numbers I should calibrate to?

 

Bannacis

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Oct 21, 2018

#2

I believe the naci scale 1500 ppm. the meter is factory calibrated to 342 ppm naci.
What does your meter read when put in solution? it should be close to the calibration liquid. they do not stray to far off cal.

 

Snakeskins

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Oct 21, 2018

#3

Bannacis said:

I believe the naci scale 1500 ppm. the meter is factory calibrated to 342 ppm naci.
What does your meter read when put in solution? it should be close to the calibration liquid. they do not stray to far off cal.

Click to expand...

Since I last calibrated, it reads like 1499 or something when using the testing liquid. The lowest the numbers will go is to the 1400s.

 

Bannacis

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Oct 25, 2018

#4

Then 1500 is your calibration number