Specifications
OWNER’S GUIDE SOFTWARE | 9193
Set the Sample Rate
You need to select a sample rate. This is the number of samples per second that DEWESoft will store for
each of your active analog channels. If you have four channels active, and you select a sample rate of 10
kS/s for example, DEWESoft will stored 10 thousand samples per second for each of the four channels. This
means that 40,000 samples will be stored each second. In a 16-bit system that means 80,000 bytes of data
per second. In a 22 or 24-bit system, it is 160,000 bytes of data per second.
- Note : Typically you should select a sample rate which is at least twice as high as the highest frequency that you
want to measure. The higher the rate, the more time axis resolution you will get, but the bigger the le will get!
You set the rate right here on the ANALOG setup screen, just above the channel list:
Use the Dynamic acquisition rate to set the sample rate. Using the small triangle at the bottom of the
eld you can change the units of the sample rate, as shown here. So if you think in kiloHertz, for example
(kSamples per second per channel), you can select that instead of Hz/ch). You can work in Hz, kHz, or even
MHz if you have a really fast system. When you change sample rate units, the value shown in the box will
also change accordingly.
To select a rate, either choose one from the list that drops down from the little triangle, or simply type one
into the eld and press ENTER on the keyboard. If DEWESoft cannot do this range, it will correct it and
show you what it can do:
There are several storing modes in DEWESoft, but in this rst example we are simply going to store manu-
ally, by pressing STORE then STOP. Later in this QuickStart guide we will come back and learn how to use
reduced storage mode and the triggered modes.