KROHNE OPTIFLEX 1300C ATEX EN - Manual (Page 17)

ELECTRICAL CONNECTIONS
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OPTIFLEX 1300 C
www.krohne.com 06/2010 - 4000091403 - AD ATEX OPTIFLEX 1300 R05 en
3.5.4 Electrical schema
Figure 3-2: Electrical schema for Ex i-approved equipment with the 4...20 mA output option
Figure 3-3: Electrical schema for Ex i-approved equipment with the FOUNDATION™ Fieldbus or PROFIBUS PA output
option
1 Intrinsically-safe power supply (use a second power supply for optional terminal 2 if the device has two 4...20 mA out-
puts)
2 Non-Ex zone
3 Ex zone
4 Resistor for HART
® communication
5 H1/HSE converter (FOUNDATION™ Fieldbus output option) or PA/DP link (PROFIBUS PA output option)
6 High Speed Ethernet (FOUNDATION™ Fieldbus output option) or PROFIBUS DP bus line (PROFIBUS PA output option)