Prosonic S FMU90
Endress + Hauser 17
Synchronization line
Connection of the separate
display and operating module
L00-FMU90xxx-04-00-00-xx-005
For the version of the Prosonic S with a separate display for panel mounting, a pre-assembled connecting cable
(3 m) is supplied. The cable must be connected to the display plug of the Prosonic S.
!
Note!
Minimum diameter for cable bushing: 2 cm
• If wiring several Prosonic S (FMU90/FMU95)
which are mounted in a common cabinet and if the
sensor cables run in parallel, the synchronization
terminals (39 and 40) must be interconnected.
• Up to 20 instruments can be synchronized in this
way.
• If there are more than 20 instruments, groups must
be formed, each containing a maximum of 20
instruments. For the instruments within each
group, the sensor cables may run in parallel. The
sensor cables of different groups must be seperated
from each other.
• Usual commercial screened cable can be used for
synchronization
– max. length: 10 m between the individual
instruments
– cross section: 2 x (0.75 - 2.5 mm
2
)
– for lengths up to 1 m, an unscreened cable can
be used; for lenghts exceeding 1 m, screening is
required. The screen must be connected to
ground
• Instruments of the Prosonic FMU86x family can be
connected to the synchronization line as well. In
this case a maximum of 10 instruments can be
connected to each synchronisation line.
L00-FMU90xxx-04-00-00-xx-004
L00-FMU90xxx-04-00-00-xx-017
Prosonic S
FMU90/95
39 40
1
23
20
……
FMU90 FMU90 FMU90
Prosonic S
FMU90/95
39 40
Prosonic S
FMU90/95
39 40
Prosonic S
FMU90/95
39 40
Prosonic
FMU860/861/862
63 64
1
2
10
……
FMU90
VH
Display
POWER
HART
0/4…20mA
Sync
Fuse
I
1
FDU-
Sensor
RD
11
BK
10
YE
9
40
39
5
4
6
7
8
1
1
Service
Relay
3
2
1
3 m
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