KROHNE IFC 020 Converter EN User Manual
Page 10
Installation and operating instructions IFC 020
Length
Cross section A
F
(Cu), minimum
0 - 150 m
5 - 500 ft
2
×
0.75 mm
2
Cu / 2 × 18 AWG
150 - 300 m
500 - 1000 ft
2
×
1.50 mm
2
Cu / 2 × 14 AWG
300 - 600 m
1000 - 1900 ft
2
×
2.50 mm
2
Cu / 2 × 12 AWG
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
F
) and max. length,
(with single shielding for IFC 020 F), see Table
D High-temperature silicone cable, 3 × 1.5 mm
2
(14 AWG) Cu, (with single shielding,
max. length 5 m (16 ft)
E High-temperature silicone cable, 2 × 1.5 mm
2
(14 AWG) Cu, max. length 5 m (16 ft)
A
F
Cross section of field current line C in Cu, see table
L Cable length
κκ
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)
1.3.4 Cable lengths (max. distance between signal converter and primary head)
Field current cable C: (for IFC 020 F single shielding!)
Primary head
Meter size
Signal cable
DN mm
inch
A
B
AQUAFLUX F
0
10 - 1000
3
/
8
- 40
A1
B1
ECOFLUX IFS1000 F
0
10 -
15
3
/
8
-
1
/
2
A4
B3
0
25 - 150
1 - 6
A3
B2
ALTOFLUX IFS 2000 F
150 - 250
6 - 10
A1
B1
ALTOFLUX IFS 4000 F
0
10 - 150
3
/
8
- 6
A2
B2
200 - 1000
8
- 40
A1
B1
PROFIFLUX IFS 5000 F
00
2.5 -
15
1
/
10
-
1
/
2
A4
B3
0
25 - 100
1
- 4
A2
B2
VARIFLUX IFS 6000 F
00
2.5 -
15
1
/
10
-
1
/
2
A4
B3
0
25 -
80
1
- 3
A2
B2
ALTOFLUX M 900
0
10 - 300
3
/
8
- 12
A1
B1
1/5
Diagram A
Diagram B (for IFC 020 E only)