RT318
How to wire
Shielded twisted cable | Internal circuit side |
|
|
|
| nA |
|
RTD |
|
|
| nB |
|
(Pt100) |
|
|
| nC |
|
|
|
|
| AG | |
|
|
|
| nG | |
RTD | : | Resistance |
| ||
| FG | ||||
Temperature | Detector |
|
| ||
n | : | Channel | number |
|
|
AG | : | Analog | ground |
|
|
FG : Frame ground |
|
|
| ||
If measurement values are unstable due to noise influences, change the grounding for the shield in the following order for stable measurement.
(1)
RTD
(Pt100)
(2)
RTD
(Pt100)
(3)
RTD
(Pt100)
Shielded twisted cable | Internal circuit side |
nA |
| |
nB |
| |
nC | AG | |
nG | ||
FG | ||
|
Shielded twisted cable | Internal circuit side | |
| nA |
|
| nB |
|
| nC | AG |
| nG | |
| FG | |
|
| |
Shielded twisted cable | Internal circuit side |
nA |
| |
nB |
| |
nC | AG | |
nG | ||
FG | ||
|
Supplementary
To minimize the influences of the wire resistance, be sure the wire length to be same of each cable from the terminal nA , nB or nC to RTD.
4
