scale calibration didn't work

[xiller8]

i have a tru weigh 100g digital scale ..i calibrated it with 100g and it said PASS.. now when i weigh a nickle it weighs 30 grams ...any idea how to fix?

 

[SmokinEdge]

What does the 100g weight weigh now? Or what did you use to calibrate the 100g?

 

[DougE]

If it was a 100g certified check weight that you calibrated it with, there is something wrong with the scale. A nickel should be 5g or less depending on pocket wear.

 

[voyager 663rd]

Battery failing maybe?

 

[radioguy]

Be sure it is sitting level on a hard surface.

RG