The E-Saximeter registers all relevant pile driving parameters. It calculates the hammer operating rate in blows per minute and helps the piling inspector create a pile driving log. For single acting, open-end diesel hammers the E-Sax also displays the hammer potential energy and ram stroke. This measurement is important since excessive stroke can cause pile damage.

Depth Measurement Reel
The E-Sax is a handheld instrument. In its basic configuration, the pile inspector observes the driving process and pushes a button for every depth increment as driving progresses. Several accessories further enhance the functionality of this time-tested sound recognition device including:

Proximity switches installed on the driving hammer and a wireless transmission system (transmitter attached to the driving hammer and E-Sax internal transceiver) enable the E-Saximeter to compute the hammer kinetic energy. Kinetic energy may be input to the GRLWEAP pile driving simulation software to fine-tune the driving criteria.
A depth measurement reel with wireless transmission capabilities eliminates the need for manual depth increment input, automating the entire creation of the driving log.