The resistance of the cone, as it is pushed in the ground, is measured, and recorded in the memory of the cone pentrometer as cone index values (kg). The depth of the cone below soil surface is also measured (mm) and recorded in memory.
The model CP40-II has an optional GPS that records the global or local coordinates at each insertion site. Ultrasonic depth sensing, coupled with a fully integrated GPS, makes both this unit and the data collected extremely accurate.
The CP40II is equipped with a graphical LCD that is used to display useful information while making insertions, or for easy reviewing of stored data. Simplified onscreen prompts are displayed to guide the user, making use of the CP40II as easy as possible.
The CP40-II constantly monitors the penetration speed, displaying this number onscreen for the user to see. In addition to monitoring insertion speed, the CP40II can alert the users if they exceed the set maximum insertion speed, and can automatically abort an insertion if this speed is exceeded. These features ensure that the collected data is as accurate as possible. If an insertion is aborted (for example by hitting a rock), the user is given the option to save or discard the collected data for that insertion.
The CP40II comes bundled with its own retrieval software for computers running Microsoft Windows operating systems, including Windows 98 and Windows XP. This software has the ability to graph up to 9 individual insertions on the same plot, and allows one to display the average of those nine insertions. All information, like GPS data, Time/Date, and Site name are displayed for each insertion and the software allows for saving to a data file for easy viewing later. Included in the software is the ability to export the data to a Comma Separated File (CSV), which will open in almost any spreadsheet program, or to export the data to an Excel XML File for Excel 2002 and above.
Weight (assembled without GPS)
Weight (in case)
Dimensions (assembled without GPS)
Maximum Small Cone Index
Maximum Large Cone Index
Maximum Insertion Depth
Memory Capacity (number of insertions)
Baud Rate/Download speed
Small Cone Size (diameter, area)
Large Cone Size (diameter, area)