Fourier DataNet User Manual page 151

Transmission Interval
You can define how often the logger will actually transmit to
the network. You may wish to have the logger transmit with
every sample, if you have slower sampling rates, or less
frequently, if you have a fast sampling rate.
The transmission interval must be a multiple of the sampling
rate, so for example if the sampling rate is 3 seconds, then the
minimum transmission rate must be every 3 seconds, and
then every 6 seconds, 9 seconds, and so on.
This parameter was designed to ease the burden on the
network if you have many loggers as each logger can transmit
at different rates.
Averaging Points
You can choose have online averaging of up to 10 points
around the real value in order to smooth the data readings, if
they are a little noisy. The recommended averaging is 4
samples.
Temperature Units
Toggle between °C and °F. This applies to the readings
displayed on the logger LCD as well as in the software.
Active Sensors
Depending on the logger model, you can activate up to two
internal sensors and four external sensors. Simply select the
inputs you want to use and then select the sensor types from
the adjacent drop-down menu. You don't have to select the
external sensor input in any order. You may select only Input
4 if you desire.
Note: On the DNL920 you cannot run the humidity sensor
without running the temperature sensor in parallel.
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