Endress+Hauser Levelflex FMP50 Bedienungsanleitung Seite 28

XA00518F-E
28
Ex nA
Basic specification, Position 1, 2 (Approval) = BG, IG
Power supply and signal circuit with protection type: not intrinsically safe.
Basic specification, Position 3 (Power Supply, Output) = E, G
The power consumption of I/O modules with passive PFS output can be limited for certain
applications.
• Recommended: Power consumption = 1 W. This is obtained for a supply voltage at the terminals of
27 V .
DC
• For higher supply voltages (U
consumption, see table below.
Table for the PFS serial resitance (R
Power consumption
Total power consumption
Internal resistance R
I
U [V]
max
35
34
33
32
31
30
29
28
27
For values associated with a higher or lower internal power consumption please contact
Endress+Hauser.
Terminal 1 (+), 2 (–)
Power supply:
U = 32 V
N DC
U = 250 V
m
Levelflex FMP50/51/52/53/54/55/56/57
): Insert a serial resistance (R
max
):
V
1.0 W
1.88 W
760 Ω
R min
V
205 Ω
177 Ω
150 Ω
122 Ω
95 Ω
67 Ω
39 Ω
12 Ω
0 Ω
Terminal 3 (+), 4 (–)
Switch output (PFS):
U = 35 V
N DC
U = 250 V
m
) in order to limit the power
V
Endress+Hauser