Prosonic S FDU91/92/93/95/96
6
E Hauser
Electrical connection
Connection to the transmitter
Prosonic S FMU90
L00-FMU90xxx-04-00-00-xx-002
(A):
Terminal box (recommended or cable lengths > 30 m);
(B):
Grounding at the terminal box;
(C):
Grounding at the
transmitter or in the control room;
(1):
Terminals for sensor input 1 at the FMU9x;
(2):
Terminals for sensor input at the
FMU9x (optional)
Terminal assignment
The strand-colour of the sensor cable must correspond to the terminal designation at the FMU90:
• RD: red
• BK: black (after shortening of the cable: braided wire screen)
• YE: yellow
• GNYE: green-yellow (for FDU93/95/96 and FDU83/84/85/86)
Connecting options
• up to 30 m: direct connection via tha sensor cable
• 30 ... 300 m: extension cable recommended; connection via a terminal box (A)
!
Note!
Terminal box and extension cable are not supplied.
"
Caution!
If the terminal box is installed in explosion hazardous areas, then all national guidelines applicable must be
observed.
"
Caution!
The cable screen serves as a return cable and must be connected to the transmitter without any electrical break.
This must be taken into account especially if the cable is shortened.
In the unshortened state, the cables are pre-assembled and the cable screen ends in a black strand (BK).
Cable specifications
Required properties of the extension cable
1
:
• Two core cable, with braided wire screen per core (no foil screen)
• Length: up to 300 m (sensor cable + extension cable)
• Cross section: 0,75 mm
2
to 2,5 mm
2
• up to 6
Ω
per core
• max. 60 nF
• for FDU93/95/96 and FDU83/84/85/86:
The earth lead must not be within the screening
YE
9
BK
10
RD
11
BK
YE
RD
YE
12
BK
13
RD
14
(1)
(2)
(A)
< 30 m
< 300 m
YE
9
BK
10
RD
11
BK
YE
RD
YE
12
BK
13
RD
14
(1)
(2)
(A)
< 30 m
< 300 m
GNYE
(B)
(C)
FMU9x
FMU9x
FMU9x
FMU9x
FDU91/92
FDU93/95/96
1)
for appropriate cable see chapter "Accessories"
