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Verfügbare Sprachen
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Exchange of electronics on Liquiphant M/S
1 2
EEx ia
–
+
FEL55
FEL56
U– 11...36 DC
Isolating amplifier
P < 600 mW
according to
i.e. PLC
NAMUR
1 2
EEx ia
PFM
50 /150 Hz
–
+
7
8
33
34
37
38
d4
d2
z4
z2
z6
d6
2
1
1 2
EEx ia
H
I
L
–
+
isolation amplifier
according to (NAMUR)
IEC 60947-5-6
Endress+Hauser Maulburg
E X
H
E X
I
L
E X
E X
FTL120Z,
FTL320
FTL325P 1CH
FTL325P 3CH
FTL170Z, FTL370/372
FTL375P 1CH (input 1)
FTL170Z, FTL372
FTL375P 2CH (input 2)
FTL375P 3CH (input 3)
SIF101, SIF111
Test button
E X
E X
FEL55
connection data
• for connection to programmable logic controllers
• AI-module 4 - 20 mA according to EN 61131-2
• load current 8 / 16 mA
FEL56
Connection data
• for connection to isolating amplifier according to NAMUR
• output signal current L/H-edge
FEL57
Connection data (PFM)
• several Nivotester with PFM evaluation and switching
contacts (relays)
• output signal PFM (pulse frequency modulation)
PFM-signal 150 Hz with free sensor
PFM-Signal 50 Hz with covered sensor
• required supply voltage 9.5 to 12.5 V DC
• current consumption 10...13 mA / P < 150 mW
FEL58
Connection data (load)
• Galvanically isolated switching amplifier according to
NAMUR (IEC 60947-5-6) i.e. FTL325N, FTL375N
• output signal current H/L-edge
• power consumption < 6 mW at < 1 mA or < 38 mW
at 2.2...4 mA
KA530F/00/a2/09.09
3
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