ELECTRICAL CONNECTIONS
3
23
OPTIWAVE X500
www.krohne.com
06/2017 - 4005809801 - AD ATEX OPTIWAVE x500 R01 en
3.6.4 Electrical schematic
DANGER!
Keep the grounding wire a minimum distance of 2 mm / 0.83
¨
away from the output terminals.
CAUTION!
Make sure that you connect the load resistor to the positive side.
Figure 3-4: Electrical schematic for Ex db ia- and Ex ia tb-approved equipment (with galvanic isolation)
Figure 3-5: Electrical schematic for Ex db ia- and Ex ia tb-approved equipment (without galvanic isolation)
1
Galvanically-isolated power supply
2
Resistor for HART
®
communication
3
Non-Ex zone
4
Ex zone
5
Grounding wire
–
if the electrical wire is shielded (braided wire etc.)
6
Power supply
7
|U| < 13 V
