Installing The Connection Cables; Recommended Cables - ABB CoriolisMaster FCH400 Series Operating Instructions Manual

CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | OI/FCB400/FCH400-EN REV. E

Installing the connection cables

General information on cable installation
Ensure that a drip loop (water trap) is used when installing the
connecting cables for the sensor.
When mounting the sensor vertically, position the cable entries
at the bottom.
If necessary, rotate the transmitter housing accordingly.
1 Drip loop
Figure 29: Laying the connection cable
Change from two to one column
Signal cable specification
The signal cable used for the connection of the transmitter and
sensor must fulfill at least the following technical specifications.
Cable specification
Impedance 100 to 200 Ω
Withstand voltage 120 V
Outer diameter 6 to 12 mm (0.24 to 0.47 in)
Cable design Two wire pairs as a star-quad cable
Conductor cross-section Length-dependent
Shield Copper braid with approximately 85 % coverage
Temperature range Application-dependent, for use in potentially
explosive atmospheres, observe the information
in Temperature resistance for the connecting
cable on page 12!
Maximum signal cable length
2
0.25 mm (AWG 24)
2
0.34 mm (AWG 22)
0.5 mm 2 (AWG 20)
0.75 mm 2 (AWG 19)

Recommended cables

It is recommended to use an ABB signal cable for standard
applications. The ABB signal cable fulfills the above-mentioned
cable specification and can be utilized unrestrictedly up to an
ambient temperature of T
amb.
ABB signal cable
5 m (16 ft)
10 m (33 ft)
20 m (65 ft)
50 m (164 ft)
100 m (328 ft)
150 m (492 ft)
200 m (656 ft)
For marine applications, an appropriate certified signal cable
must be used. ABB recommends the cable HELKAMA RFE-FRHF
2×2×0,75 QUAD 250V (HELKAMA order number 20522).
50 m (164 ft)
100 m (328 ft)
150 m (492 ft)
200 m (656 ft)
= 80 °C (176 °F).
Ordering number
3KQZ407123U0500
3KQZ407123U1000
3KQZ407123U2000
3KQZ407123U5000
3KQZ407123U1H00
3KQZ407123U1F00
3KQZ407123U2H00
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