Endress+Hauser Prosonic S FMU90 PROFIBUS DP - Connection of a Pt100 Temperature Sensor

Electrical connection Prosonic S FMU90 PROFIBUS DP
40 Endress+Hauser
PNP
FMU90 FMU90
FTL
A
B
FMU90
C
24 V
(24 V)
71 72 73
74 75 76
77 78 79
80 81 82
(24 V)
71
74
75 76
77 78 79
80 81 82
(24 V)
71 72
73
74 75 76
77 78 79
80 81 82
72 73
A0034904
 35 Connection of external switches
A Liquiphant connection
B Connection of external switches (passive)
C Connection of external switches (active)
Inputs for external switches
• External switch 1
• 0  < 8 V or 72 and 73 interconnected
• 1  > 16 V or 72 and 73 not interconnected
• External switch 2
• 0  < 8 V or 75 and 76 interconnected
• 1  > 16 V or 75 and 76 not interconnected
• External switch 3
• 0  < 8 V or 78 and 79 interconnected
• 1  > 16 V or 78 and 79 not interconnected
• External switch 4
• 0  < 8 V or 81 and 82 interconnected
• 1  > 16 V or 81 and 82 not interconnected
Maximum short-circuit current
24 V at 20 mA
6.3.9 Connection of a Pt100 temperature sensor
Valid for:
Order code 090 (additional input)
Option B (4 x point level switch + 1 x temperature)
L
WARNING
Explosion Hazard
It is not permitted to connect a Pt100 sensor in hazardous areas.
‣
In hazardous areas, use an Omnigrad S TR61 with an appropriate approval certificate.