FnIO module - 2-channel resistance thermometer input module ST3702
allows the direct connection of resistance thermometers (RTD) in 2-/3-wire connection technology
Delisting
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- The analog input module processes signals from resistance thermometers and resistors
- Galvanic isolation of the input signal from the system level with a resolution of 12 bits
- Power supply via internal system voltage
- Common ground potential of the input channels
The 2-channel resistance thermometer input module allows the direct connection of Pt resistance sensors and resistors and can be connected using 2-/3-wire technology, with linearization over the entire temperature range performed by the bus terminal. A short circuit or interruption of the sensor cable as well as an out-of-range condition is indicated by a red error LED.
Power supply:
via system voltage 5 VDC
Power consumption:
max. 70 mA at 5 VDC
Sensor connection type:
2- or 3-wire connection technology
Cross sections:
I/O cable max. 2 mm²
Connection technology:
Removable connection level (terminal blocks)
Dimensions (LxHxW):
12 mm x 99 mm x 70 mm
Operating temperature:
0 °C to 60 °C
Operating altitude:
max. 2,000 m
Assembly:
DIN rail
Number of inputs:
2 channels single ended, no isolation between the channels.
Indicators:
2 x green/red for status, 1 x green/red for FnBus status
Sensor types:
Pt50, Pt100, Pt200, Pt500, Pt1000, JPt100, JPt200, JPt500, JPt1000, Ni100, Ni200, Ni500, Ni1000, Ni120, Cu10, resistance (100 mOhm/bit, 10 mOhm/bit, 20 mOhm/bit).
Resolution:
0.1 °C or 10 mOhm (see Table 1 on page 2 in the data sheet)
Conversion time:
200 ms/all channels
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