DI-4730 Hardware Manual
Controls, Indicators, and Connections
12
Use the following diagram to connect Analog Input Channel 1.
Specify a full scale range for the channel in the menu item
Edit
>
Channel Settings
.
Scroll through all enabled channels with the
Next
and
Previous
buttons.
Low-pass Filter
Each analog channel employs a low-pass filter with automatic corner frequency selection. The filter is a CIC (cas-
caded integrator comb) type that uses as many as 512 samples per channel to calculate in real time as data is acquired.
Filter response is optimized when sampling frequency is set to ten times the highest frequency of interest.
The DI-4730 calculates its own Last Point, Maximum, Minimum, and Filter data making it available at the program-
ming level. Acquisition methods “RMS” and “Frequency” are permanently disabled for the DI-4730, as are Input
Types “Nonlinear” and “Thermocouple” and selections for “Unipolar” and “Fahrenheit.”
Please Note:
Last Point, Maximum, and Minimum modes utilize only 12-bit data as the CIC filter is not used.
Signal -
