Emerson Process Management ControlWave EFM 3808 - Manual (Page 84)

2-32 / Installation & Operation CI-ControlWave EFM
Each AI signal is channeled through signal conditioning circuitry (that provides a 2 Hertz
low pass filter), a transorb for surge suppression, multiplexer, and an A to D Converter
(ADC).
Figure 2-20 - Non-isolated AI/O & AI Module Configuration Diagram