Endress+Hauser Liquiphant M FTL51C - Output Signal; Signal on Alarm; Connectable Load

Liquiphant M FTL51C
14 Endress+Hauser
Switching behavior of the connected device:
Please note this switching response and function of the plant especially when replacing a Liquiphant
incorporating electronic insert EL17Z or FEL37 with a Liquiphant M incorporating electronic insert
FEL57.
Output signal
Signal on alarm Output signal on power failure or in the event of damaged sensor: 0 Hz
Connectable load • Floating relay contacts in the connected switching unit Nivotester FTL325P, FTL375P
• For contact load, see the Technical Data of the switching unit.
L00-FTL5xxxx-05-05-xx-en-000
* De-energized on power supply failure
Fail-safe mode
set at
switching unit
MAX
MAX
MAX
MAX
MIN
MIN
MIN
MIN
Setting
at FEL57
STD
EXT
STD
EXT
STD
EXT
STD
EXT
Fork
free
free
covered
covered
free
free
covered
covered
Switching status of relay in switching unit
on = energised off = de-energised
Tes t start End of t
est start
(power off) (power on)
> 3 s
on
on
off
off
off
off
on
on
off
off
off
off
~ 3 s on
~ 3 s on
~ 3 s on
~ 3 s on
~ 5 s off
~ 5 s off
off
off
~ 5 s off
~ 7 s off
~ 5 s off
~ 5 s off
~ 2 s on
~ 2 s on
~ 3 s on
on
~ 35 s on
~ 3 s off
~ 2 s off
~ 35 s off
off
~ 30 s on
on
on
on
off




Safety mode Level Output signal
(PFM)
LEDs
green yellow
L00-FTL2xxxx-07-05-
xx-xx-000
= lit
= unlit
L00-FTL5xxxx-04-05-xx-xx-008
150 Hz
50 Hz