Do I need to purchase a calibration weight with the scale?
200147
Its always good to have a calibration weight just in case its jarred or dropped during shipping, as this will throw the calibration way off. Or if you want, use an american dollar bill or a jefferson nickel as these will weigh 1.0 and 0.5 respectively. I own one of these, bought it about 5 months ago. Its a lot smaller than it looks but the calibration was dead on accurate despite its cheap price and small size.
1875535
You should. It's calibrated from the factory but you won't know how long it's sat in some warehouse. If you care about getting the most from what you're weighing than definitely get the calibration weight.
1215964
No does not require calibration. I compared with another scale and it was accurate.
1310058
No Problems, If you adjust the small screw on the left of scale, you will get a proper weight. took me about 20 minutes to get it set right.
606307
Not necessary. Comes pre-calibrated. You get to pick between 4 weights: g, kg, oz, and one other that I can't remember (but description lists them all).
1892993
Its always best to calibrate to a known weight. I did not have any known weights, so I calibrated it to zero (ie no weight). For my purposes, this was sufficient.
587519
Mine was pretty well calibrated (within .02g for the 500g weight). It really depends on how accurate you want it to be. It is not "self calibrating". A set of calibration weights will help keep your scale as accurate as it can be.
1153535
No you don't need to use them. We have had our scale for over 2 years and have never used them. The purpose of the weights, my understanding anyway, is for weighing objects over 350 lbs. They are used for multipliers to go beyond the 350 limit of the scales. Hope this helps
1886142
The scale comes with an app that syncs via Bluetooth and imports your weight. I have not been able to sync to the Health app or to other fitness apps like LoseIt.
2015825
During the calibration procedure it only asked for the 200 gram weight, not the 100 gram one, so I don't know what others are talking about. BTW, I spent a bunch of time calibrating this down to .01, only to realize that it will vary depending where on the scale platform you place the idem being weighed, so it's kind of a waste of time.
1344563
Calibration certificate is a question for the manufacturer, however, you could go to a local independent certification vendor or send it to a business, such as Rice Lake who does these certifications. The scale is a rather inexpensive model ...and if I didn't need a calibration certificate, I would do my own calibration - using several other scales, and documenting the results, on a regular basis
2036096
you need to calibrate with something if you want to have a scale that measures properly; 1 of the 3 scales i've bought similar to this weighed accurately from the factory; one was 1.5% off the other was 3-4% off. I was able to calibrate one of my scales using 100ml and 200ml of water; however i was able to use a scale I knew was accurate to measure that water (since it really was maybe 95ml water and 5g of plastic cup). the nickel =5g does work pretty well but it would take 100 to get 500g; i've seen a batch of nickels off quite a lot but on average in my tests they come out very close to 5.0g (example 7 nickels should be 35g and was 33.5g but by the time I got to 10 it was 49.8g or 50.1g for example). You can get a few rolls of nickels or you can just buy a 500g weight for about the same price.
1733496
Sure. You don't need to mess with the nutritional functions if you just want to simply weigh something. The scale also provides a 'toggle' to choose between ounces/pounds and grams.
1854036
There is no initial calibration needed and I don't find anything regarding instructions on how to calibrate it should there be the need to in the future. I am assuming that since it works as most digital scales do, measuring changes in electrical resistance distributed to load cells, calibration is performed at the factory and would need to be performed by the factory in the future if there was a need to do so. I have had other digital scales which operated the same way and lasted for many years. It measures the same as a mechanical scale I have so I believe it is accurate from the factory. The only way to tell for sure is to locate a standard and periodically check to ensure it is calibrated against that standard.
862431
Does this need to be re-calibrated when you move it before you weigh yourself?
706094
I personally do not use calibration weights as 100% accuracy is not required for the reason I use the scale. That being said, if one requires accuracy, I would think 3 weights would suffice. One each at the low, middle and high points of the expected range of measurement. I hope this helps you.
1761778
Yes. It allows you to set up the container and reset it to zero. Then you can have an accurate weight.