What is the sampling rate used for data logging?
The P-TRAK® ultrafine particle counter is always sampling at an internal rate of one data point per second. The operator can program the data logging function to continuously store data points in memory at any interval between 1 and 60 seconds. The data stored when the interval is more than one second will be an average of all the 1-second readings taken during the interval. For example, if the interval is set at 10 seconds, each stored data point will be an average of ten 1-second readings.
