How to Calibrate??? Does anyone know if this can be calibrated and how ? No adjustments found on circuit board.
2068150
I was wondering the same thing. i bought FIVE of them, and they are all different. For example temp 72 72.5 73 72.8 or 74.2 similar within 8% on humidity, which to me is quite a difference. I let them sit in the same room for five days and they did get a little closer, within 5% of each other.
730698
So far, I cannot get it calibrated. They are sending a new replacement meter.
1265565
Hi Harold - there must be a defect then. I set mine for 345 and it stops at that - it will fluctuate a few degrees down when in use - but nothing major. I would contact them and have it replaced
180742
You can purchase some calibration solution at almost any gardening/hydroponics shop. The solution is a perfect 4.0. You put a little in a cup (about an inch) and place the tester in there, in the on position. If you don't read 4.0, you can turn that little screw in the back until you do. Thats it. Calibrated.
1392307
I found no calibration feature. You can contact the manufacturer and they will answer your question further.
15779
I didn't find it hard at all. That said all of our Now Boards are mounted to the ceiling. If you have them on a table and the table gets bumped that will force you to recalibrate. There is another possibility. Check the resolution setting of your computer. Often times it is set way to high. In the materials there is a maximum setting for your computers resolution which is 1024X768 if you go higher than that calibration can be a chore.
820492
you need to calibrate with solution to 1000 small screw driver hole in back of unit. good to go. if you want ec instead of ppm divide by 50 150ppm is .3 ec every 50 ppm is .1 ec.
1142641
I used it right out of the box, no adjustment or calibration. This was with Windows 7 and Nvidia GTX 550 Ti.
1757541
Honestly I'm not to sure. Possibly. I'm not that good with Chinese circuitry. But my best advice is that if your the only one that looks at, if you know how much it's off by... Just factor that in. I knew it was gonna be a little off anyway. Hope I helped you. Good luck
469683
Jordan: Thanks for taking the time to reply: I must admit I knew NONE of the things U mentioned. I think I may try to find a calibration disk, or wud setting up my TV via the THX method set it for all input sources?
1160519
I'm not aware of a calibration function to it. It's simply quite accurate out of the package.
794110
the calibration packet I ordered never made it here so I was unable to calibrate it unfortunately and that is likely the problem....I thought that they may be also calibrated from the factory so I did not worry when my calibration packet didn't come but I guess they must not calibrate at the manufacturing place?
751234
I bought this scale about a month ago. I also wanted to calibrate it. As I have background in electronics, I took the back over off to look for a way to adjust it. I could find no mechanical adjustment anywhere. There is soldered pin sticking out of the printed circuit board with the label "cal", which is almost certainly an electronic calibration connection. As there is no physical adjustment capability apparent, I suspect that adjustment is done electronically at the factory. Just my opinion.
1396587
I checked it with my other meter and it appears to be already calibrated. Both of my meters match.
2277921
There is no place to use an AC adapter, so I would say no to that. So far it hasn't needed calibration and we have owned ours for almost two years.
918115
Mine has been rock solid at 110v. My source voltage varies between 121v and 128v so correction is always on. Sounds like you may suffer from a low voltage source, which if you're set at 110v the device would not compensate for since that variation is below it's threshold. Have you tried setting to 120v and seen if it brings that voltage up to a stable value? too much load could also be an issue....
826816
I do not recall anything about calibration and I no longer have it. After spending two days with very unusual readings, I threw it in the trash. I purchased a used military compass which still works after 30 years.