Quickstart EN Instruction Manual

3 ELECTRICAL CONNECTIONS
24
IFC 300
www.krohne.com 08/2010 - 4000070303 - QS IFC 300 R06 en
3.4.6 Length of signal cable B
INFORMATION!
For temperatures of the medium above 150
° C / 300 ° F, a special signal cable and a ZD
intermediate socket are necessary. These are available including the changed electrical
connection diagrams.
Measuring sensor Nominal size Min. electrical
conductivity
[µS/cm]
Curve for signal
cable B
DN [mm] [inch]
OPTIFLUX 1000 F 10...150 3/8...6 5 B2
OPTIFLUX 2000 F 25...150 1...6 20 B3
200...2000 8...80 20 B4
OPTIFLUX 4000 F 2.5...6 1/10...1/6 10 B1
10...150 3/8...6 1 B3
200...2000 8...80 1 B4
OPTIFLUX 5000 F 2.5 1/10 10 B1
4...15 1/6...1/2 5 B2
25...100 1...4 1 B3
150...250 6...10 1 B4
OPTIFLUX 6000 F 2.5...15 1/10...1/2 10 B1
25...150 1...6 1 B3
WATERFLUX 3000 F 25...600 1...24 20 B1
Figure 3-8: Maximum length of signal cable B
1 Maximum length of signal cable B between the measuring sensor and signal converter [m]
2 Maximum length of signal cable B between the measuring sensor and signal converter [ft]
3 Electrical conductivity of the medium being measured [μS/cm]