Chapter 10 Technical appendix
Device description HE 5697 MFC
41
Version 1.4
10.1.2
I/O card type 2
10.1.2.1 Analogue inputs
The I/O card is equipped with two completely independent analogue universal inputs:
One input is equipped with two channels.
10.1.2.2 Universal input
Channel 1 is used to process signals from RTD sensors, thermocouples, resistors, voltage sources
up to 1000 mV and current sources up to 20 mA.
The input type is selected via a parameter.
RTD measurement
Thermocouple measurement
Converter resolution:
24 Bit
Cycle time:
50 ms
Galvanic isolation:
Input type:
Resistance
Connection type:
3-conductor
Measuring ranges:
Pt100/1000
-200 to 850°C
Ni100/1000
-60 to 300°C
KTY 11-6
-50 to 125°C
Measuring current:
Pt100/Ni100
I < 0.5 mA
Pt1000/Ni1000
I < 50 µA
KTY 11-6
I < 50 µA
Accuracy:
≤1K
Temperature drift:
≤0.08% / 10K
Measuring circuit monitoring:
Short circuit, interruption
Input type:
Voltage
Connection type:
2-conductor
Input resistance:
>10 MΩ
