I get different readings depending upon where I put the scale. I'm not sure if it needs to be calibrated or zeroed, and I threw out the instructions.
503474
I tried several different surfaces to get it to work. I emailed back and forth with the seller. I finally had to return it. It was just too sensitive and I just wanted to weigh myself.
503475
The scale is self-calibrating (simply step on ,off and on again). It needs to be on a level hard floor (not carpeted). It is more accurate and consistent than several previous scales that we owned (both digital and analog). If it not as described, the unit might be defective. You can talk to customers' service which is supposed to be excellent per other veviewers.
503476
You have to recalibrated it. That should work. And try to put it in one place when you weigh yourself dont keep moving it to different places. I always take my scale in the bathroom and no where else, and I haven't had any problems since I purchased it. I had it for about 3 months Are you being careful how you handle it ? If not that could be the problem. And remember it has to be on a flat surface. You cannot weigh yourself on carpet or any surface that's not flat.
1864901
Lol.I haven't tried yet. As I stated,mine is off by 10lbs. I guess check on line and see if they have instructions on how to calibrate. Good luck
1056084
any scale can be at sometime. Have you been stepping on it so it registers some weight, then stepping off and waiting until it zeroes? That was my original mistake...not doing this. Was about to toss it, but now it works fine and is consistent
659112
Maybe you have a defective one. I am on my second and calibrate using a pH 7 neutral solution. Using the screwdriver provided and the little screw on the back I have no problem moving it up or down. This is my second one and both worked flawlessly.
910028
The instructions say it needs to recalibrate. That may be a hassle. But it is a good scale.
100772
There are different timing slots...keep hitting the on button & it moves up the scale to longer on times. You will see a small green light move up the timing scale to different levels.
1044606
I didn't calibrate mine. I haven't compared it with other thermometers, but it seems to be working just fine.
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.
877973
I don't believe the machine can be calibrated, at least I haven't noticed an option. Also the readings are not always consistent if you take a few back to back. Have others noticed this?
343090
I don't think you can calibrate it. I haven't seen anything on the device or the app that lets you do it. Myself and 3 other people I know use it on a regular basis and have never had this issue. You might have a defective unit.
910029
I recommend you move the scale out of the bathroom, to a location it doesn't have to be moved daily. It very clearly states you should avoid moving it, or you will need to calibrate it frequently. Also, it becomes less accurate with frequent movement. Can it go in your bedroom?
1726770
I'm sorry, I have not experienced this. I have tried the scale on carpet and tile and I get the same reading. Have you tried moving the scale to different spots on the linoleum or hardwood floor and see if you get different readings? Myself, I would use the lowest reading and feel better about myself.
99242
It sounds like it needs to be recalibrated. Take the batteries out, then reinsert them. Put it down in the flat hard spot where you want to keep it, moving it around will cause this. If you have a small level, you could check that. Then step on it several times, waiting a few seconds in between. i have done this 4-5 times when I get different readings, but then it settles. If this does not work, check your instructions again, if you follow all the instructions and it does not work, I would contact the company. Good Luck!
452665
Yes. For example, I put the plate on the scale then zero it out. If I remove the plate, the scale displays a negative number. I then repeat the process with each item I add--zero the current reading then add the next item. I hope this helps.
1743584
I have no idea how to adjust it but, honestly, I never assume that doctor's scales are correct. Any scale I've ever had at home has been different than when I go to the doctor.
305658
In my opinion I would return the scale to get your money back and spend it on another scale. This brand/model is not worth the time or money. It has to many glitches to even be useful and could detour your motivation if the reading is off to far (as was the case with mine - the 3rd one that is after returning the first 2!). Best of luck.
498656
It came calibrated but I also had an old school fool scale that I used to verify the digital scale was correct. There is also an instruction manual.