It is important to remember that not all calibration laboratories provide the same type of calibration service. For load cells calibrated in compression there may be a noticeable difference in output.
An article explaining the definitions of Primary Force Standards (As Defined per ASTM E74) and Secondary force standards. Primary standards are required to certify a force-measuring device with a Class AA verified range of forces.
When you make a first measurement, everything looks fine. It is when you make a second, repeated measurement and it is different from the first measurement that doubt begins to arise. Which one is the correct measurement?
Welcome to our first official blog post. I figured I'd start off by posting something that is becoming more common. I'm hoping to make a compelling argument against removing a load cell from a machine; and expecting to repeat the calibration results once the load cell is re-installed, post calibration.