KROHNE OPTIFLUX 1000 EN - Manual (Page 21)

ELECTRICAL CONNECTIONS
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OPTIFLUX 1000
www.krohne.com 04/2014 - 4000846303 - HB OPTIFLUX 1000 R03 en
Grounding ring number 1 (optional for DN25...150):
• Thickness: 3 mm / 0.1" (tantalum: 0.5 mm / 0.02")
Note: Note: Note: Note: For diameter DN10 and DN15, grounding rings are integrated as standard in the flow
sensor construction.
4.3 Virtual reference for IFC 300 (C, W and F version)
The virtual reference option on the IFC 300 flow converter provides complete isolation of the
measurement circuit.
Benefits of virtual reference:
• Grounding rings or grounding electrodes can be omitted.
• Safety increases by reducing the number of potential leakage points.
• The installation of the flowmeters is much easier.
Minimum requirements:
• Size: ≥ DN10
• Electrical conductivity: ≥ 200 µS/cm
• Electrode cable: max. 50 m / 164 ft, type DS
4.4 Connection diagrams
Figure 4-2: Grounding ring number 1
Figure 4-3: Virtual reference
INFORMATION!
For the connection diagrams, please refer to the documentation of the applicable converter.