Once the peak value is established at 40, set the Alert threshold to trigger at a value slightly above this peak to ensure you are notified of actual knock events. 3. Using the GP-03 Component

Adjust the settings until the peak readings display approximately 40 on the device's scale.

If a "Bump Fail" screen appears, the instrument cannot be used until a successful calibration is performed. GP-03 Operator's Manual - Geotech Environmental Equipment