Endress+Hauser Levelflex FMP51 Operating Instructions Manual page 32

Electrical connection
3+
4-
1
2
1 Terminals switching output (Open collector)
2 Cable entry
Switching output
Function
Switching behavior
Failure mode
Eectrical connection values
Internal resistance
Insulation voltage
Switch point
Switching delay
Number of switching cycles
32
Open collector switching output
Binary (conductive or non-conductive), switches when the programmable switch
point is reached
non-conductive
U = 10.4 to 35 V , I = 0 to 40 mA
DC
< 880 W
R
I
The voltage drop at this internal resistance has to be taken into account on planning
the configuration. For example, the resulting voltage at a connected relay must be
sufficient to switch the relay.
floating, Insulation voltage 1 350 V
freely programmable, separately for switch-on and switch-off point
freely programmable from 0 to 100 sec. , separately for switch-on and switch-off
point
corresponds to the measuring cycle
Levelflex FMP51, FMP52, FMP54
to power supply aund 500 V
DC
3
A0013759
to ground
AC
Endress+Hauser