24
Channel Configuration
“Channels” are the entities that tell a data logger (8832, 8872) how to acquire data in real-time
from an instrument to form averages, that are then passed on to
Parameters
in AirVision to store
the data. Channels represent the physical side (instruments, wires, RS-232 connections, etc),
while Parameters represent the logical side or “slots in the database.” It’s possible to have
Parameters
but not
Channels
if the data comes from some source other than being averaged by
the data logger, such as the File Import Tool, or direct instrument polling.
The information for
Channels
is set up in Data Source Details in AirVision (or “Logger
Channels” in the 8872 menu).
Basic Channel Information
In the setup of most of the channel types the Channel tab will have identical fields on the
Channel tab as the Standard channel setup has, except where noted in descriptions below
in this document.
Do not use spaces in the channel names and avoid using equation symbols in the channel
names as these can cause problems with math channels if such channel names are used in
a math equation.
When a Channel is first created the Channel Name will be displayed as Chan1, Chan2, etc.
If you have already configured a parameter (recommended), when you select the associated
Parameter in the top right, the name will automatically propagate over to the Channel Name
field once the next field has been selected. However, channel names are limited to 8 characters
(as a holdover from 8816s and 8832s), but the Channel Name can be edited.
The Channel Number will automatically be filled in with the next available number, but it
can be changed by using the radio buttons to select the logical number of the channel
being configured.
Agilaire 8872 Manual
Chapter 2 Configuration
