Connecting field wiring to Zone 1 Analog I/O cards
The Analog I/O card provides eight analog input channels and four
analog output channels. The analog input channels are Intrinsically
Safe 2-wire 4-20 mA with HART and the analog output channels are
Intrinsically Safe 4-20 mA with HART.
Figure: Field wiring connections for the Zone 1 Analog I/O card