KROHNE OPTIWAVE 8300C Marine ATEX EN - Manual (Page 14)

3
ELECTRICAL CONNECTIONS
14
OPTIWAVE 8300 C
www.krohne.com 02/2009 - 4000407102 - AD ATEX OPTIWAVE 8300 R02 en
3.5.4 Electrical schema
Without an external sensor
Figure 3-2: Electrical schema for Ex i-approved equipment without an external sensor
1 Intrinsically-safe power supply (use second power supply for optional terminal 2)
2 Non-Ex zone
3 Ex zone
4 Resistor for HART
® communication
With an external sensor
Figure 3-3: Electrical schema for Ex i-approved equipment with an external sensor
1 Intrinsically-safe power supply (use second power supply for optional terminal 2)
2 Non-Ex zone
3 Ex zone
4 Resistor for HART
® communication
5 External sensor
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AD_ATEX_OPTIWAVE8300_EN_090407_4000407102_R02_PRT.book Page 14 Tuesday, April 7, 2009 5:07 PM