The calibration of many handgrip instruments can be performed by loading it at the center with a series of weights. Hang the weight evenly across the dynamometer handle using velcro straps. Use the dynamometer to lift the weights slowly off the floor while they are strapped to the handle and record the value of the dial.

Calibration The instrument is calibrated at the factory by loading it at the center with weight and making the appropriate adjustment in the gauge. It is not recommended that the user perform this operation, but rather the instrument be returned for calibration. The calibration should be checked on a regular, annual basis.

Page 11: Calibration In the event that the Jamar Smart Hand Dynamometer displays a reading other than zero “0” at the start of a test, the zero point can be reset by performing the following procedure: (1) With the Jamar Smart unit powered on, press the “select test”...