Endress+Hauser Micropilot FMR56 - Connection Data; Safety Instructions: Zone; Temperature Tables

XA00688F-A Micropilot FMR50/51/52/53/54/56/57
18 Endress+Hauser
Safety instructions:
Zone 0
• In the event of potentially explosive vapor/air mixtures, only operate the device under atmospheric
conditions.
– Temperature: –20 to +60 °C
– Pressure: 80 to 110 kPA (0.8 to 1.1 bar)
– Air with normal oxygen content, usually 21 % (V/V)
If no potentially explosive mixtures are present, or if additional protective measures have been taken
according to EN 1127-1, the device may also be operated under non-atmospheric conditions in accordance
with the manufacturer's specifications.
Temperature tables  ä 29
Connection data 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
max
): Insert a serial resistance (R
V
) in order to limit the power consumption
 table below.
Table for the PFS serial resitance (R
V
):
!
Note!
For values associated with a higher or lower internal power consumption please contact Endress+Hauser.
Basic specification, Position 1, 2 (Approval) = BC, IC
Connection compartment Ex d
Power consumption 1.0 W
Total power consumption 1.88 W
Internal resistance R
I
760 
U
max
[V] R
V
min
35 205 
34 177 
33 150 
32 122 
31 95 
30 67 
29 39 
28 12 
27 0 
Basic specification, Position 3 (Power Supply; Output) = E, G TRC [27]
Terminal 1 (+), 2 (–) Terminal 3 (+), 4 (–)
Power supply: Switch output (PFS):
U
N
= 32 V DC
U
m
= 250 V AC
U
N
= 35 V DC
U
m
= 250 V AC