KROHNE IFC 020 K Installation And Operating Instructions Manual page 10

1.3.4 Cable lengths (max. distance between signal converter and primary head)
Abbreviations and explanatory notes
used in the following tables, diagrams and connection diagrams
A Signal cable A (type DS), with double shielding, see diagram A for max. length
B Signal line B (type BTS) with triple shielding, max. length see diagram B (IFC 020 E only)
C Field current cable min. cross-section (A
(with single shielding for IFC 020 F), see Table
D High-temperature silicone cable, 3 × 1.5 mm
max. length 5 m (16 ft)
E High-temperature silicone cable, 2 × 1.5 mm
A Cross section of field current line C in Cu, see table
F
L Cable length
κ κ Electrical conductivity of the process liquid
ZD Intermediate connection box required in connection with cables D and E for primary heads
ALTOFLUX IFS 4000 F, PROFIFLUX IFS 5000 F and VARIFLUX IFS 6000 F in cases where
process temperatures exceed 150 °C (302 °F)
Recommended length of signal cable A (Type DS) and B (Type BTS)
(Signal cable B, Type BTS, for IFC 020 E only)
Primary head
AQUAFLUX F
ECOFLUX IFS 1000 F
ALTOFLUX IFS 2000 F
ALTOFLUX IFS 4000 F
PROFIFLUX IFS 5000 F 002.5 -
VARIFLUX IFS 6000 F
ALTOFLUX M 900
Diagram A
Field current cable C: (for IFC 020 F single shielding!)
Length
0 - 150 m 5 - 500 ft
150 - 300 m 500 - 1000 ft
300 - 600 m 1000 - 1900 ft
1/5
Meter size
DN mm inch
010 - 1000 / - 40
3
8
010 - 15 / -
3 1
8
025 - 150 1 - 6
150 - 250 6 - 10
010 - 150 / - 6
3
8
200 - 1000 8 - 40
15 / -
1 1
10
025 - 100 1 - 4
002.5 - 15 / -
1 1
10
025 - 80 1 - 3
010 - 300 / - 12
3
8
Cross section A
2 × 0.75 mm
2 × 1.50 mm
2 × 2.50 mm
Installation and operating instructions IFC 020
) and max. length,
F
2 (14 AWG) Cu, (with single shielding,
2
(14 AWG) Cu, max. length 5 m (16 ft)
Signal cable
A B
A1 B1
/ A4 B3
2
A3 B2
A1 B1
A2 B2
A1 B1
/ A4 B3
2
A2 B2
/ A4 B3
2
A2 B2
A1 B1
Diagram B (for IFC 020 E only)
(Cu), minimum
F
Cu / 2 × 18 AWG
2
Cu / 2 × 14 AWG
2
Cu / 2 × 12 AWG
2