10
Agilaire 8872 Manual
Chapter 1 Theory of Operation
Special Notes Regarding GSI / Modbus Channel Types (8872 vs. 8832)
Several improvements have been made regarding the handling of GSI and Modbus channels in
the 8872, compared to its Model 8832 predecessor:
Dongles are no longer required for Thermo analyzers and EcoTech analyzers
GSI-based met channels no longer use the two-channel setup (GSI channel, then type
V/W/7/8 channels)
Sigma-Theta channels now use the “Input Channel” to point to the WDR channel, rather
than having a duplicate analog input setup.
Analog inputs default to 10V scaling. Changing the volts full scale for accuracy purposes
requires the input to be changed manually through the input module’s setup software
(see page 44 - Standard (Analog) Channels).