±What does 1.5e mean?
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What does ±1.5e in question 10 mean?
The calibration division value for e-testing is indicated on the scale’s nameplate; generally, this value is the same as the display division value.
In other words, it refers to the error range and division value of this measuring instrument. Simply put, it indicates by how much the scale displays a change during use; if the change is 2 kilograms, then its error value e is 2 ±1.5e, meaning the error range is from -3 kilograms to 3 kilograms
The verification division value is used to determine the accuracy class of the scale and to calculate errors； If the calibration division value e is 20g and the maximum weighing capacity is 100kg, then: the number of calibration divisions n is 100kg/0.02kg = 5000. The minimum measurable amount for this scale is 20e = 400g, and the error is within 500n, i.e., ±0.5e = ±10g............ The actual division value represents the smallest value that can be displayed on the scale. In the parameter settings of many electronic scales, there is an option to set the number of decimal places, which allows the displayed division value to be made very small. This does not indicate high accuracy on the part of the scale, but it can give the impression of accuracy.
The e-calibration division value is indicated on the scale’s nameplate