3
ELECTRICAL CONNECTIONS
24
OPTIWAVE X400
www.krohne.com
06/2021 - 4006413503 - AD NEPSI OPTIWAVE x400 R03 en
Level transmitter with the PROFIBUS PA or FOUNDATION
™
fieldbus output option
For more data about intrinsically safe circuits, refer to
Maximum intrinsically safe values for the
electrical circuit
on page 21.
3.6.4 Maximum voltage for the electrical circuit
U
m
= 250 V AC/DC
For the minimum and maximum supply voltage at the terminals, refer to
Supply voltage
on page
23.
Terminals
Minimum DC voltage
at output terminals
Maximum DC voltage
at output terminals
[V]
Ter / -
9
24
WARNING!
Always connect fieldbus devices to an intrinsically safe barrier or a FISCO segment coupler.
