| Items | Specifications | |
|---|---|---|
| Model | AAT141 | AAR181 |
| Number of input channels | 16, isolated (*7) | 12, isolated |
| Input signal | TC: JIS C1602:1995, IEC584:1995 Type J, K, E, B(*1), R, S, T, N mV: -100 to 150 mV, -20 to 80 mV |
RTD: JIS C1604:1997, IEC751:1995 Pt100 (3-wire type)(*6) |
| Switching input signals | TC/mV can be set individually for CH1 to CH16. | CH1 to CH12 are RTD inputs. |
| Allowable input voltage | ±5 V | ±5 V |
| Withstanding voltage | Between input and system: 1500 V AC, For 1 minute | |
| Input resistance | Power ON/Power OFF | 2 MΩ or more |
| Accuracy | TC: ±30 µV MV: ±80 µV for span (-100 to 150 mV) ±30 µV for span (-20 to 80 mV) |
RTD: ±120 mΩ |
| Allowable total resistance of signal source plus wiring |
1000 Ω or less | 40 Ω or less (wiring resistance per wire) (*2) |
| Effect of allowable signal source resistance (1000 Ω) |
±20 µV(*3) | — |
| Reference junction compensation accuracy |
Within ±1 °C (*4) (*5) | — |
| Measurement current | — | RTD: 1 mA |
| Temperature drift | ±80 µV/10 °C (-100 to 150 mV input) ±30 µV/10 °C (TC/-20 to 80 mV input) |
±120 mΩ/10 °C (RTD input) |
| Data update period | 1 s | |
| Burn-out | All channels can be set together. Setting: Not available/available (UP/DOWN) detection time: 60 s |
|
| Maximum current consumption | 450 mA (5 V DC) | 450 mA (5 V DC) |
| Weight | 0.2 kg | |
| External connection | Pressure clamp terminal | |
