We have completed a full characterisation of a PS0 Impact Pump at our U.K. test facility, gathering multi-period time-series traces from piezo-electric microphones at several input data points for each parametric variable. The raw data, hot off the press, shows excellent SNR, including a number of features of known or suspected origin, as well as some unknown periodicity. Post processing over the coming weeks and months will reveal more about what real-world information these encode, with a view to introducing on-site data processing and cheap and robust remote-monitoring in the longer term.