Endress+Hauser Prosonic S FMU90 - 4.2 Terminal assignment

Prosonic S FMU90 Flow Measurement PROFIBUS Wiring
Endress+Hauser 21
3.6 Connection of external switches (for FMU90-********B***)
L00-FMU90xxx-04-00-00-xx-021a
ALiquiphant
B External switch
C External switch with external supply voltage
The maximum short-circuit current at 24 V is 20 mA.
3.7 Connection of a temperature sensor
The Prosonic S FMU90 transmitter has an optional input for an external temperature probe (in
the product structure: feature 90 "Additional input", option B). The following probes can be
connected:
• A FMT131 temperature probe from Endress+Hauser
• A Pt100 temperature probe
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 72 73
74 75 76
77 78 79
80 81 82
(24 V)
71 72 73
74 75 76
77 78 79
80 81 82
Further information: Operating Instructions for Prosonic S FMU90, document number
BA00293F.