ummm, ill take it but can i like get one that you didnt throw yet?
Picky, picky, picky.
ummm, ill take it but can i like get one that you didnt throw yet?
Beg to differ. My digital oakton can do .51 if I so choose. Also my truncheon is off by 100ppm at higher ecs, according to different calibration fluids I've used. My digital oakton stays calibrated. The truncheon boasts "no need to calibrate". My response is "yeah right, more like no WAY to calibrate". It works decent for what it is, although for the $100 I'd go for digital 4 in 1 oakton. Even the temperature correction is digital and therefore instant, contrasted with the truncheons 2 minute required temp acclimation.The Truncheon has .7 and .5 conversion. It owns all meters. Period.
Sgt.Stedenko,
The meter's estimation of PPM is not arbitrary, not at all.. it is the product of the EC and and a fixed (known) constant.
Yes that thing looks much better then a truncheon. Anything that can be calibrated is better, by definition ;-) .. the very definition of the word calibration uses "correctness" to define it.
my 4 in 1 oakton does micro semens too. micro semens is basically "double what your ppm would be on a .5 meter". so 1,000 micro semens = 1ec, or about 500ppm
The meter's estimation of PPM is not arbitrary, not at all..
mS/cm (micro siemens per centimeter) is 1/500th your "PPM" on the 500 scale. Example: 1mS/cm=500 "PPM". EC is like temperature. "1 temp" expresses nothing. The temperature must be measured on a scale such as 1º Kelvin, 1º Celsius, etc. As EC is most commonly denoted in mS/cm and you've used mS in your example, without further denotation, 1000mS=1000EC.
I think you've confused mS/cm with µS/cm or, milli siemens per centimeter. 1 mS=1000µS, 1000mS=1,000,000 µS.
It's completely arbitrary.
If I said that 500, 640, 650, 680, 700 and 768 were identical numbers you'd call me a moron. If I said 550 is a stronger solution than 750, you'd call me brain dead. Why does "PPM" get a break for so blatantly lying to you with arbitrary nonsense?
If "500" weren't arbitrary it would be the only conversion instead of 1 out of (at least) 8 different scales.
You counfused mS with ec! 500 ppm correspond to 1000 μS / cm or 1 ECmS/cm (micro siemens per centimeter) is 1/500th your "PPM" on the 500 scale. Example: 1mS/cm=500 "PPM". EC is like temperature. "1 temp" expresses nothing. The temperature must be measured on a scale such as 1º Kelvin, 1º Celsius, etc. As EC is most commonly denoted in mS/cm and you've used mS in your example, without further denotation, 1000mS=1000EC.
I think you've confused mS/cm with µS/cm or, milli siemens per centimeter. 1 mS=1000µS, 1000mS=1,000,000 µS.
According to you EC gets the same break because EC does not specify the units either.Why does "PPM" get a break for so blatantly lying to you with arbitrary nonsense?.
You counfused mS with ec!
I've confused nothing. mS/cm and uS/cm are the scales by which EC are measured. Without the scale, EC has the same numerical value as "temperature."
Straddle the border of Canada and the US with 2 glasses of 100º water. The US cup is body temp while the Canadian cup is boiling. This is because the US uses Fahrenheit and the rest of the world uses Centigrade.
1 mS=1000µS because that's how "milli" and "micro" relate by definition. It's not a lie to say 1 meter=1000 millimeters or that 1$=100¢. One meter IS 1000 millimeters, 1$ IS 100¢, and 1mS IS 1000µS. Those are their defined values.
PPM is Parts Per Million (a measurement our pens and meters cannot make) It means of 1,000,000 parts, X number of parts are whatever it is you're measuring. 500 PPM means 500 of 1,000,000 parts; 700 PPM means 700 of 1,000,000 parts. Those are two different values, they are not the same yet, PPM says they're identical. That's not true, that's nonsense. 550 is a smaller number than 750 yet, 550 PPM may or may not be a stronger solution than 750 PPM. That's as arbitrary as it gets.
Oh, I had no idea mS and µS meant different things, my mistake. Thanks for learning me!I've confused nothing. mS/cm and µS/cm are the scales by which EC are measured.
Without the scale, EC has the same numerical value as "temperature."
EC says 1µS and 1mS are identical, if the person doesn't state units.PPM says they're identical. That's not true, that's nonsense. 550 is a smaller number than 750 yet, 550 PPM may or may not be a stronger solution than 750 PPM. That's as arbitrary as it gets.
grnMtnGrower, stop cluttering the thread with posts that contain no content, please. If you want to thank someone I'd say thanking them once is reasonable.
EC says 1µS and 1mS are identical, if the person doesn't state units.
PPM says 700ppm and 500ppm are identical, if the person doesn't state the conversion factor
If I take RO water and mix in 500ppm of NaCi, my meter reads 500ppm, that's not nonsense.
Agreed. It makes estimations. You need a nutrient calculator and RO water to determine PPM of each element.Your meter does not measure PPM; It has no clue how many parts of anything are contained in your solution.