| SIMATIC S7, analog input SM 331, isolated, 8 AI thermocouples/4 AI Pt100, for signals from the hazardous area, diagnostics-capable, PTB tested 1 x 20-pole |
| Supply voltage |
| Load voltage L+ |
| ● Rated value (DC) | 24 V |
| Input current |
| from backplane bus 5 V DC, max. | 120 mA |
| Power loss |
| Power loss, typ. | 0.6 W |
| Analog inputs |
| Number of analog inputs | 8; 8x thermocouples; 4x RTD thermoresistors |
| Input ranges |
| ● Voltage | Yes |
| ● Current | No |
| ● Thermocouple | Yes |
| ● Resistance thermometer | Yes |
| ● Resistance | Yes |
| Input ranges (rated values), voltages |
| ● -1 V to +1 V | Yes |
| — Input resistance (-1 V to +1 V) | 10 MΩ |
| ● -25 mV to +25 mV | Yes |
| — Input resistance (-25 mV to +25 mV) | 10 MΩ |
| ● -250 mV to +250 mV | Yes |
| — Input resistance (-250 mV to +250 mV) | 10 MΩ |
| ● -50 mV to +50 mV | Yes |
| — Input resistance (-50 mV to +50 mV) | 10 MΩ |
| ● -500 mV to +500 mV | Yes |
| — Input resistance (-500 mV to +500 mV) | 10 MΩ |
| ● -80 mV to +80 mV | Yes |
| — Input resistance (-80 mV to +80 mV) | 10 MΩ |
| Input ranges (rated values), thermocouples |
| ● Type B | Yes |
| — Input resistance (Type B) | 10 MΩ |
| ● Type E | Yes |
| — Input resistance (Type E) | 10 MΩ |
| ● Type J | Yes |
| — Input resistance (type J) | 10 MΩ |
| ● Type K | Yes |
| — Input resistance (Type K) | 10 MΩ |
| ● Type L | Yes |
| — Input resistance (Type L) | 10 MΩ |
| ● Type N | Yes |
| — Input resistance (Type N) | 10 MΩ |
| ● Type R | Yes |
| — Input resistance (Type R) | 10 MΩ |
| ● Type S | Yes |
| — Input resistance (Type S) | 10 MΩ |
| ● Type T | Yes |
| — Input resistance (Type T) | 10 MΩ |
| ● Type U | Yes |
| — Input resistance (Type U) | 10 MΩ |
| Input ranges (rated values), resistance thermometer |
| ● Ni 100 | Yes |
| — Input resistance (Ni 100) | 10 MΩ |
| ● Pt 100 | Yes |
| — Input resistance (Pt 100) | 10 MΩ |
| ● Pt 200 | Yes |
| — Input resistance (Pt 200) | 10 MΩ |
| Cable length |
| ● shielded, max. | 200 m; TC: 50 m |
| Analog value generation for the inputs |
| Integration and conversion time/resolution per channel |
| ● Resolution with overrange (bit including sign), max. | 16 bit; 10 bit to 15 bit + sign |
| ● Integration time, parameterizable | Yes; 2.5 to 100 ms |
| ● Interference voltage suppression for interference frequency f1 in Hz | 10 to 400 Hz |
| Encoder |
| Connection of signal encoders |
| ● for current measurement as 2-wire transducer | Yes |
| ● for current measurement as 4-wire transducer | Yes |
| Errors/accuracies |
| Operational error limit in overall temperature range |
| ● Resistance thermometer, relative to input range, (+/-) | 0.04 %; 0.09 to 0.04% |
| Basic error limit (operational limit at 25 °C) |
| ● Resistance thermometer, relative to input range, (+/-) | 0.008 %; 0.018 … 0.008% |
| Interrupts/diagnostics/status information |
| Diagnostics function | Yes |
| Diagnostic messages |
| ● Diagnostic information readable | Yes |
| ● Overrange | Yes |
| ● Wire-break in signal transmitter cable | Yes |
| ● Short-circuit of the signal encoder cable | Yes |
| Diagnostics indication LED |
| ● Group error SF (red) | Yes |
| ● Channel fault indicator F (red) | Yes |
| Ex(i) characteristics |
| Module for Ex(i) protection | Yes |
| Maximum values of input circuits (per channel) |
| ● Co (permissible external capacity), max. | 43 µF |
| ● Io (short-circuit current), max. | 28.8 mA |
| ● Lo (permissible external inductivity), max. | 40 mH |
| ● Po (power of load), max. | 41.4 mW |
| ● Uo (output no-load voltage), max. | 5.9 V |
| Potential separation |
| Potential separation analog inputs |
| ● between the channels | No |
| ● between the channels and backplane bus | Yes |
| Standards, approvals, certificates |
| Use in hazardous areas |
| ● Type of protection acc. to EN 50020 (CENELEC) | [EEx ib] IIC |
| ● Type of protection acc. to FM | Class I, Division 2, Group A, B, C, D T4 |
| ● Test number PTB | Ex-96.D.2108X |
| Ambient conditions |
| Ambient temperature during operation |
| ● max. | 60 °C |
| Connection method |
| required front connector | 20-pin |
| Weights |
| Weight, approx. | 210 g |
|
Đánh giá
Chưa có đánh giá nào.