Doc. name : OP INST RI-F 00 OP
-V01(Page 6 of 6)
3
300
Rayleigh Instruments Ltd.
Raytel House, Cutlers Road,
South Woodham Ferrers, Essex,
CM3 5WA, UK
Tel. 0044(0)1245428500
www.rayleigh.com
(Specifications are subject to change, since development is a continuous process.)
WIRING INFORMATION
CONNECTION DIAGRAM FOR RS485
Master
RS485-RS232 Converter
Suggested terminating resistor
(120 ohm, ¼ watt)
P
Q
AVG
INT
Wh
0
2
5
50
75
100
1
0
2
5
50
75
100
2
0
2
5
50
75
100
3
k
Hz
A
kV
MkVAr
MkW
PF
S
P
Q
AVG
INT
Wh
0
2
5
50
75
100
1
0
2
5
50
75
100
2
0
2
5
50
75
100
3
k
Hz
A
kV
MkVAr
MkW
PF
S
P
Q
AVG
INT
Wh
0
2
5
50
75
100
1
0
2
5
50
75
100
2
0
2
5
50
75
100
3
k
Hz
A
kV
MkVAr
MkW
PF
S
A
P
PPLICATION OF
ULSE OUTPUT
P
:
ULSE OUTPUT
P
L
C
5 -27VDC
+
LOAD
L1
L2
L3
N
V2
V3
N
V1
V3
V1
N
Voltage
Input
Voltage Output
V2
CT Input
RS485
+
-
+
-
PULSE
O/P
Note: # All fuse types:
0.5A class CC UL type
0.5A fast acting 600V
!
The pulse output is of
semiconductor type and must be
supplied with a voltage.
!
The pulse output can be
interfaced into a process through
a PLC.
If the PLC has a self excited digital
input, external DC supply is
not necessary.
Supply to up to 31
additional meters
(Total 32 max.)
RJ45 Cable
L1
L2
L3
N
#