Endress+Hauser Liquiphant M FTL51C - Electronic Insert FEL55 (8;16 Ma); Power Supply; Electrical Connection; Output Signal

Liquiphant M FTL51C
10 Endress+Hauser
Electronic insert FEL55 (8/16 mA)
Power supply Supply voltage: DC 11 to 36 V
Power consumption: < 600 mW
Reverse polarity protection
Overvoltage protection FEL55: overvoltage category III
Electrical connection Two-wire connection for separate switching unit
Output signal
Signal on alarm Output signal on power failure or in the event of damaged sensor: < 3.6 mA
Connectable load • R = (U - 11 V) : 16.8 mA
• U = connection voltage: DC 11 to 36 V (in wet environments DC 11 to 35 V)
Example: PLC with 250  with 2-wire version
250  = (U – 11V) / 16.8 mA
4.2 [/] = U – 11 V
U = 15.2 V
For separate switching unit.
Signal transmission 16/8 mA on two-wire cabling.
For connection to programmable logic controllers
(PLC) for example, AI modules 4 to 20 mA to
EN 61131-2.
Output signal jump from high to low current on
point level.
Fuse required for non-Ex applications!
Only use power units with safe galvanic isolation (e.g.
SELV).
L00-FTL5xxxx-04-05-xx-en-000
1 2
FEL55
–
Ex ia
+
E
X
E X
U 11...36 V DC
–
+
–
+
R
R =
max
U–11 V
16.8 mA
PLC/SPS,
AI-Modules, ...
F=T50mA
Safety mode Level Output signal LEDs
green red
~ 16 mA
~ 8 mA
L00-FTL2xxxx-07-05-
xx-xx-000
= 16 mA ± 5 %
= 8 mA ± 6 %
= lit
= unlit
L00-FTL5xxxx-04-05-xx-xx-006
MMAX
MIN
+
2 1
+
2 1
+
2 1
+
2 1
~16 mA
~8 mA
~8 mA
~16 mA