Rtd Input - ero electronic MKS - mA Manuel De Service

RTD INPUT

RTD RTD
4 3 1 4 3
Fig. 3 RTD INPUT WIRING
Input circuit: current injection (135 µA).
Line resistance: automatic compensation up to 20 Ω/wire
with no measurable error.
Calibration: according to DIN 43760
NOTES:
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.
XKS-mA-1-A0.p65 2
LINEAR INPUT
1
3
1
1
3
Fig. 4 mA, mV AND V INPUTS WIRING
NOTES:
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.
Input type impedance
13 0 - 60 mV
> 1 MΩ
14 12 - 60 mV
15 0 - 20 mA
16 4 - 20 mA
17 0 - 5 V
> 200 kΩ
18 1 - 5 V
19 0 - 10 V
> 400 kΩ
20 2 - 10 V
GB 2
26/04/01, 16.46
mA,
+
mV
or
_
V
Shield
+
mA
mV
_
or
V
G
Accuracy
< 5 Ω
0.2 % + 1 digit
@ 25°C