ELECTRICAL CONNECTIONS
3
25
OPTIFLEX 2200 C/F
www.krohne.com
03/2019 - 4005066003 - AD NEPSI OPTIFLEX2200 R03 en
Remote (Field) version
Remote (Field) version
Remote (Field) version
Remote (Field) version
The signal cable (between the converter electronics and the probe electronics) is supplied by the
manufacturer for NEPSI applications. The signal cable cannot be changed by the user. For more
data, speak to the supplier.
Level transmitter with the 4...20 mA passive
–
HART output option
Figure 3-9: Electrical schematic for Ex d ia and Ex iaD tD-approved equipment (with galvanic isolation)
Figure 3-10: Electrical schematic for Ex d ia and Ex iaD tD-approved equipment (without galvanic isolation)
1
Galvanically-isolated power supply
2
Power supply
3
Resistor for HART
®
communication
4
Non-Ex zone
5
Ex zone
6
|U| < 13 V
7
Grounding wire
–
if the electrical cable is shielded (braided wire etc.)
Level transmitter with the FOUNDATION
™
fieldbus or PROFIBUS PA output option
Figure 3-11: Electrical schematic for Ex d ia and Ex iaD tD-approved equipment with the FOUNDATION
™
fieldbus or
PROFIBUS PA output option
1
Approved barrier with entity parameters or FISCO power supply. For more data, refer to
Maximum intrinsically-safe
values for the electrical circuit
on page 21.
2
Non-Ex zone
3
Ex zone
4
Grounding wire. NOTE: Shielded electrical cable is mandatory for fieldbus output options.
