Rtd Input - ero electronic LFS Manuel De Service

RTD INPUT

RTD INPUT RTD INPUT RTD INPUT RTD INPUT
RTD RTD
8 9 10 8 9 10
Fig. 5 RTD INPUT WIRING
NOTE NOTE NOTE:
NOTE NOTE
1) Don't run input wires together with power
cables.
2) Pay attention to the line resistance; a high line
resistance may cause measurement errors.
3) When shielded cable is used, it should be
grounded at one side only to avoid ground loop
currents.
4) The resistance of the 3 wires must be the
same.
LFS-1-CC.P65 4
LINEAR INPUT LINEAR INPUT LINEAR INPUT LINEAR INPUT LINEAR INPUT
10
9
10
9
Fig. 6 mA, mV AND V INPUTS WIRING
NOTE NOTE
NOTE NOTE NOTE:
1) Don't run input wires together with power
cables.
2) Pay attention to the line resistance; a high line
resistance may cause measurement errors.
3) When shielded cable is used, it should be
grounded at one side only to avoid ground loop
currents.
4) The input impedance is equal to:
< 5 Ω for 20 mA input
> 1 MΩ for 60 mV input
> 200 kΩ for 5 V input
> 400 kΩ for 10 V input
GB GB GB GB GB 4
13/07/2004, 14:40
mA,
+
mV
or
_
V
Shield
+
mA
mV
_
or
V
G