3
ELECTRICAL CONNECTIONS
20
OPTIFLUX 4000
www.krohne.com
10/2021 - 4003872405 - QS OPTIFLUX 4000 R08 en
3.3 Virtual reference option
for:
- IFC 300 (C, W and F version)
- IFC 400 (C and F version)
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:
t
DN10 / 3/8"
•
Electrical conductivity:
t
200
μ
S/cm
•
Signal cable: max. 50 m / 164 ft, type DS
3.4 Connection diagrams
Figure 3-3: Virtual reference
INFORMATION!
For the connection diagrams refer to the documentation of the applicable signal converter.
INFORMATION!
Virtual reference cannot be activated when the IFC 400 is in the SIL mode.
