Part No. 502621 Issue 10
8
4.0: Installation (continued)
4.0: Installation (continued)
4.3: Electrical Connections
The OD4 requires three connections.
1. Transducer.
2.
Power Supply.
3.
Output Signal, Voltage or Current.
A small hole should be made in the grommet prior
to passing the wires through. If a screened cable
is to be used, an EMC cable gland is recommended
(see section 4.7).
For best performance in electrically noisy
environments, the case of the OD4 should be
connected to a local earth. This can be achieved
via the mounting bracket. This earth connection is
not a safety earth, but is part of the overall electrical
screening scheme.
The wiring layout arrangements are similar for OD4
fitted with EMC glands and screened cable.
Separate Power Supply and Signal Out wires
Power Supply and Signal Out wires from
one end only
Connections to the power supply should be
routed to one side as shown. This helps to reduce
interference between power supply wires and the
more sensitive parts of the circuitry.
A technical note explaining good practice
for cable installation and routing can be
downloaded from www.solartronmetrology.com
Transducer
0V
+
VE
V
O
U
T
0
V
I
O
U
T
C
O
AR
SE
G
AIN
1
2
3
4
5
6
(
7)
FINE GAIN
COARSE
OFFSET
-VE
+VE
5V
2.5V
FI
N
E
O
FF
SE
T
10
K
2K
- -
¦R
¦
|F
|
- -
D
IV
2
X2
(X
4)
G BK W B R
LO
H
I
Signal O ut
Power Supply
Transducer
0V
+
V
E
V
O
U
T
0
V
I O
U
T
C
O
A
R
S
E
G
A
IN
1
2
3
4
5
6
(
7)
FINE GAIN
COARSE
OFFSET
-VE
+VE
5V
2.5V
FI
N
E
O
FF
S
E
T
10
K
2K
- -
¦R
¦
|F
|
- -
D
IV
2
X
2
(X
4)
G BK W B R
LO
H
I
Signal Out
Power Supply
