IM 01C25R01-01E
7-6
7. WIRING
NOTE
Please note that a temperature error will occur
when you use a 2-wire RTD because of wiring
resistance.
Please do not ground the shield on the RTD side
of the cable.
CAUTION
Please use only the cables provided with this
instrument.
When wiring, be sure not to damage the cable's
insulation or its core.
All the cable cores must have sufficient insula-
tion around them.
Do not let the signal line contact the shield line.
Do not allow the shield line or the signal line to
come the earth potential voltage.
2-Wire
3-Wire
4-Wire
A
B A
B b A
B b
a
F0717E.EPS
Figure 7.11 The Method of Wiring for the RTD Side
Table 7.2 The Method of Wiring for the RTD Side RTD
Terminal
T0701E.EPS
RTD Terminal
B
A
2-Wire
3-Wire
4-Wire
White
White
White
a
-
-
open
b
-
Blue2
Blue2
Blue1 and Blue2
Blue1
Blue1
NOTE
The color display in the table shows the white
line of the cable.
The cable color could change depending on the
cable type.
Blue 1 and blue 2 allow changing places.
For 2-wire Type, connect either which is blue1 or
blue2, and give other side as OPEN.
7.7 Grounding
Grounding is always required for the proper operation
of transmitters. Follow the domestic electrical
requirements as regulated in each country. For a
transmitter with a built-in lightning protector,
grounding should satisfy ground resistance of 10
or
less.
Ground terminals are located on the inside and outside
of the terminal box. Either of these terminals may be
used.
Ground terminal
(inside)
Ground terminal
(outside)
F0718E.EPS
SUPP
LY
PU
LS
E
CHEC
K
ALAR
M
Figure 7.12 Ground Terminals
