Tech Note
Troubleshooting & Maintenance

How many samples are collected when a measurement is taken and how long is the measurement window open?

  • The sample window is open for about 10mS - a small window is used in order to save battery power.
  • The input signal is filtered with a 2nd-order low pass filter with a 10Hz cutoff frequency, to prevent the input signal from varying much during the sampling window. Plus, the fastest logging rate is 1/s, so these channels are designed to look at slowly-varying signals.

Here is the resolution for the RX3000 analog inputs. Most customers ask ”What can you read? I need to read 100mV” meaning 0 to 100 mV. The 0 to 2.5V range is equal to 2500mV. The resolution on the low range is 78uV that’s .000078 or .078mv.

You can safely tell customers we can easily read the 0 to 100mv range.

More information can be found on the RXMOD-A1 web page and HOBO RX3000 User Guide

RXMOD-A1 Product Page