From 1990 the digital surface data acquisition unit was designed to work with a laptop computer. The Micrologger series of compact digital surface acquisition units, launched in 1997, followed this paradigm and still sets the standard to this day.
All Robertson Geo probes digitise their data within the probe itself and the winch system transmits only digital data. These digital systems are now extremely robust and can provide years of reliable and repeatable data with relatively little maintenance.
Apart from a few exceptions most probe repairs are best left to the OEM or their agents who have the requisite test and calibration equipment. Winches however require more routine inspection and maintenance. There are various routines to consider in regard to inspection and maintenance that should keep the equipment in optimum working order.
