PPM Meter wont calibrate right....

Hey I just got a new PPM meter and I put it in the 1382 PPM solution I got with it and the highest reading I can get by twisting the screw to calibrate is exactly 1082 PPM. I'll probably send it back but I'm lazy and wondering if I can just subtract 200PPM from any reading I get. Any input?

[AugustWest]

it depends on the conversion of your meter. Hannah meters read differently than others. Get some distilled water and turn the screw till it says 0.

i have a control wizard meter. i will try the distilled water thing.

August, I did what you said, but no matter how much or little i turn the screw (which happens to be a shitty plastic one that's being shredded) it always shows 0 in distilled water and constantly changes when I dip it into a solution.

I'm calling my guy at the Hydro Store tomorrow to get a new one sent out.

[AugustWest]

Originally Posted by hwhobbs

August, I did what you said, but no matter how much or little i turn the screw (which happens to be a shitty plastic one that's being shredded) it always shows 0 in distilled water and constantly changes when I dip it into a solution.

I'm calling my guy at the Hydro Store tomorrow to get a new one sent out.

cool man.. wasn't sure what meter you had (shoulda asked first).. distilled water may have been a bad idea anyway. Better off getting a new one.
BTW they should come pre calibrated from the factory.