KROHNE OPTIFLEX 2200 IECEX - Manual (Page 25)

ELECTRICAL CONNECTIONS
3
25
OPTIFLEX 2200 C/F
www.krohne.com 04/2013 - 4000861902 - AD IECEX OPTIFLEX2200 R02 en
3.6.2 How to connect the electrical cables
Cable entries are supplied on customer demand. If you supply the cable entries, this part must
have a degree of ingress protection IP≥6x (IEC 60529).
• Do not remove more than 6 mm / 0.2¨ of insulation from the wire.
• Connect the load resistor to the positive terminal of the power supply
• Ground the negative connection.
• If the load resistor has to be connected to the negative terminal, the loop resistance must not
be more than 350 ohms.
3.6.3 Supply voltage
Level transmitter with the 4...20 mA output option
Level transmitter with the PROFIBUS PA or FOUNDATION fieldbus output options
For more data, refer to Maximum intrinsically-safe values for the electrical circuit on page 22.
3.6.4 Electrical schematic
WARNING!
Use only Ex d-approved cable entries and plugs for Ex d applications. Use only Ex t-approved
cable entries and plugs for Ex t applications.
Do not remove more than 6 mm / 0.2
¨
of insulation from the wire.
CAUTION!
4...20 mA passive - HART output option:
4...20 mA passive - HART output option: 4...20 mA passive - HART output option: 4...20 mA passive - HART output option: Do not ground the positive connection.
INFORMATION!
For maximum intrinisically-safe values, refer to Maximum intrinsically-safe values for the
electrical circuit on page 22
.
Minimum voltage at output
terminal [VDC]
Maximum voltage at output
terminal [VDC]
Current output terminal 16 1 36 1
1 For a current output of 22 mA
Minimum voltage at output
terminal [VDC]
Maximum voltage at output
terminal [VDC]
Output terminal Entity 9 24
FISCO 9 17.5
DANGER!
Keep the grounding wire a minimum distance of 2 mm / 0.83
¨ away from the output terminal.
CAUTION!
Make sure that you connect the load resistor to the positive side.