Input – Span Calibration
To perform a span calibration on an input, verify that the “Span” option at the top is selected. Select the target millivolts that will be sourced. Note – For a span calibration, it is recommended that 90 % of the full range be sourced. The recommended millivolt source value will be displayed as well. The mV value will be displayed on the screen. Press the Calibrate button to begin the calibration. The calibration status will be displayed on screen. When it is over, the screen will display “idle” once again.