G-Tek Corporation Private Limited
15
The connection for 3-wire RTD sensor is shown in figure-10. Normally RTD sensor with 3 wires has two
similar color wire and other one different color. connect two similar color wires at
‘
-
’
and ‘
W
’.
Connect the remaining dissimilar color wire
at’
+'. Similarly connect for all other channels.
5.1.1.4
Sensor Wiring - RTD 2 Wire Input
Figure 11 Sensor Wiring - RTD 2 Wire Input
For 2 wire RTD sensor connect 2-
wires of the sensor at '+’ &’
-
’ and put an external short link between
'-
' and ‘
W
’ as shown in figure
-11. Similarly connect for all other channels.
Notes:
1.
When wiring RTDs, lead length and diameter must be chosen such that lead length are equal
and that each lead exhibits no more than 10 Ohms resistance between the LmNet and the
RTD.
2.
For Input connections, high quality, low resistance contacts must be used which are suitable
for dry operations.
Sensor connector
