Rtd Input - ero electronic MKS Manuel De Service

RTD INPUT

RTD INPUT RTD INPUT RTD INPUT RTD INPUT
RTD RTD
4 3 1 4 3
Fig. 3 RTD INPUT WIRING
Input circuit Input circuit: current injection (135 µA). Input circuit Input circuit Input circuit
Line resistance Line resistance Line resistance: automatic compensation up to 20 Ω/wire
Line resistance Line resistance
with no measurable error.
Calibration Calibration Calibration: according to DIN 43760 Calibration Calibration
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.
XKSser1-B0.PMD 2
LINEAR INPUT LINEAR INPUT LINEAR INPUT LINEAR INPUT LINEAR INPUT
1
3
1
1
3
Fig. 4 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.
Input type Input type impedance impedance impedance
Input type Input type Input type impedance impedance
13 0 - 60 mV 0 - 60 mV 0 - 60 mV 0 - 60 mV 0 - 60 mV
> 1 MΩ
14 12 - 60 mV 12 - 60 mV 12 - 60 mV 12 - 60 mV 12 - 60 mV
0 - 20 mA 0 - 20 mA
15 0 - 20 mA 0 - 20 mA 0 - 20 mA
16 4 - 20 mA 4 - 20 mA 4 - 20 mA 4 - 20 mA 4 - 20 mA
17 0 - 5 V 0 - 5 V 0 - 5 V 0 - 5 V 0 - 5 V
> 200 kΩ
18 1 - 5 V 1 - 5 V 1 - 5 V
1 - 5 V 1 - 5 V
19 0 - 10 V 0 - 10 V 0 - 10 V 0 - 10 V 0 - 10 V
> 400 kΩ
20 2 - 10 V 2 - 10 V 2 - 10 V 2 - 10 V 2 - 10 V
GB GB GB GB GB 2
12/09/2005, 9.46
mA,
+
mV
or
_
V
Shield
+
mA
mV
_
or
V
G
Accuracy Accuracy Accuracy Accuracy Accuracy
< 5 Ω
0.2 % + 1 digit
@ 25°C