ELECTRICAL CONNECTIONS
3
49
OPTIFLEX X200
www.krohne.com
09/2018 - 4006564001 - AD IECEX OPTIFLEX x200 R01 en
Level transmitter with the PROFIBUS PA or FOUNDATION fieldbus output option
For more data, refer to
Maximum intrinsically-safe values for the electrical circuit
on page 45.
3.8 Ex ic equipment
3.8.1 How to connect the electrical cables
Refer to the handbook for data about the device terminals.
Cable glands are supplied on customer demand. If you supply the cable glands, this part must
have a degree of ingress protection IP
≥
6X (IEC 60529). We recommend that you use a part that
has a degree of ingress protection IP
≥
67. Make sure that the cable gland is sealed.
Obey the instructions that follow:
•
Electrical wires must agree with applicable standards (e.g. IEC 60079-14).
•
Use the electrical connection procedure in the Handbook.
•
Put the electrical wires in position and safely attach them to prevent damage. The electrical
wires must also be a sufficient distance from hot surfaces.
•
Make sure that unused electrical wires are safely connected to the ground potential of the
hazardous area. If this is not possible, make sure that each of the unused electrical wires are
safely isolated (other electrical wires, ground etc.) and rated for a test voltage
≥
500 V
RMS
.
•
If it is necessary, make sure the electrical wire insulation gives good protection from
corrosion.
•
Connect only to separate certified, intrinsically-safe circuits. Make sure that the electrical
circuit characteristics are not more than the values that follow.
•
Do not remove more than 6 mm / 0.2
¨
of insulation from the wire.
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 IECEx applications. The signal cable cannot be changed by the user. For more
data, speak to the supplier.
Terminals
Minimum voltage at
output terminals
Maximum voltage at
output terminals
[V DC]
I/O 1 (Entity)
9
24
I/O 1 (FISCO)
9
24
WARNING!
You must always connect fieldbus devices to an intrinsically-safe barrier or a FISCO system.