User`s guide

Baud Rate
Select the communication baud rate you wish to use. To send the
updated baud rate to the SS420x, click the Set Baud Rate button.
Base Frequency
Select the base frequency. The default setting for the SS420x is 10
Hz, which gives optimal signal to noise, and can be used in
countries using either 50Hz or 60Hz. The base frequencies
available will depend on the baud rate chosen. If the baud rate is
less than 38400bps, the base frequencies 100 and 120 will not be
available. If you choose a higher base frequency, you must select a
base frequency that can be evenly divided into your line
frequency (i.e. 30 for 60Hz countries and 25 for 50Hz countries).
If selected incorrectly, you may see line frequency noise on your
chromatogram. For best performance, select a base frequency
close to the maximum sampling frequency you will be using to
acquire data.
24 SS420x User’s Guide