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| Model number | SM331 8AI current/Voltage/Hot resistance | |
| Article No. | H7 331-1KF02-0AB0 | |
| Product description | 8-channel analog input, current/voltage/thermal resistance temperature measurement module; Resolution 13 bits | |
| Conventional norm | Dimensions W x H x D | 40 x 125 x 117 |
| Power dissipation | Typical value 1 W | |
| Backplane bus current | 120mA | |
| Backplane bus current | / | |
| Front connector | 40Front connector |
| Input path | Standard | 8 |
| Resistive sensor | 8 |
| Constant current of resistive sensor | Resistance thermometers and resistance measurements from 0 Ω to 600 Ω | 0.8mA |
| Resistance measurement 0 to 6 kΩ, PTC, silicon temperature sensor | 0.2mA |
| Input type and range | voltage | ±50mV、±500mV、0V到10V、±1V±5V、±10V、1V到 5V |
| current（4wires） | ±20mA、0mAto20mA、4mAto20mA | |
| Current (2wires) | / | |
| Resistor /PTC | 0kΩto6kΩ、0Ωto600Ω、PTC | |
| Hot resistance | Pt100（Standard/climate）、Ni100（Standard/climate）、Ni1000（Standard/climate）、LG-Ni1000（Standard/climate）、 KTY83/110、KTY84/130 | |
| Thermocouple | non |
| Basic error limitation（Operating limit at 25°C） | voltage | ± 0,3 % |
| current | ± 0,3 % | |
| Resistance | ± 0,3 % | |
| temperature | RTDStandard form：±1K、RTDclimatic type：±2 K |
| Temperature compensation | Internal temperature compensation | non |
| External temperature compensation by compensating the socket | non | |
| Temperature compensation of 0°C reference contact | non |
Short/diagnostic /status information | Overrun interrupt | non |
| Diagnostic interrupt | non | |
| The diagnostic information is readable | have | |
| Resolution | 12+ symbol bits |
| Electrical isolation | Between channels | none |
| Between the channel and the backplane bus | support | |
| Conductor length | 200m; At 50 mV, up to 50m |
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