Download of Cpt-log 4.1 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. This program is an intellectual property of Geotech AB. Cpt-log relates to Office Tools.
From the developer:
User friendly software which logs point resistance (qc), sleeve friction (fs), pore pressure (u),tilt angle, electric conductivity, temperature, penetration speed and dissipation test in the "Penetration Module". It furthermore calculates in semi-real time the friction ratio Rf. On the screen up to four graphs can be displayed. The choice of displayed channels can be changed during a sounding.
You may want to check out more software, such as A-Converter or Mark's Adding Machine, which might be similar to Cpt-log.