KROHNE IFC 010 Converter Short EN - Manual (Page 5)

IFC 010 5
1.3 Electrical connection of
separate flow sensor
(W Versions)
1.3.1 General information on
signal cable A and field current
cable C Use of the KROHNE shielded signal cable type DS with foil screen and magnetic shield will ensure proper
operation of the equipment.
Signal cable to be permanently laid.
Connect shields via stranded drain wires.
Underwater and underground installation possible.
Insulating material is flame-retardant to IEC IEC 332.1 / VDE 0742.
Signal cables are low in halogen, unplasticized, and stay flexible at low temperatures.
Signal cable Type DS, with double shielding
1 Stranded drain wire, 1st shield, 1.5 mm 2 or AWG14
2 Insulation
3 Conductor 0.5 mm 2 or AWG 20 (3.1 red / 3.2 white)
4 Special foil, 1st shield
5 Inner sheath
6 Mu-metal foil, 2nd shield
7 Stranded drain wire, 2nd shield, 0.5 mm 2 or AWG 20
8 Outer sheath
Field current cable C with single shielding
Cross-section is dependent on required length of cable, see Table in Sect. 1.3.4.
1.3.2 Grounding of flow sensor All flowmeters must be properly grounded.
The grounding conductor should not transmit any interference voltages.
Do not ground any other electrical device together with this conductor.
The flow sensor is connected to ground by means of an FE functional ground conductor.
Special information on grounding various flow sensors is contained in the separate installation instructions for
flow sensors.
These instructions also contain detailed descriptions on how to use grounding rings and how to install flow
sensors in metal or plastic pipes or internally coated pipelines.
1.3.3 Cable preparation Customer-supplied materials
W Insulation tubing (PVC), Ø 2.0-2.5 mm (dia. 1")
X Heat-shrinkable tubing or cable sleeve
Y Wire end sleeve to DIN 41 228: E 1.5-8
Z Wire end sleeve to DIN 41 228: E 0.5-8
Preparation for connection to flow sensor
Length Ferrule
mm inch
a 55 2.17
b 10 0.39
c 15 0.59
d 8 0.30
DS signal cable
bending radius
≥ 50 mm (≥ 2")