| Model | UN 231 8TC-PID |
| Order number | UN 231-8PH22-0XA0 |
| Dimension(WxHxD) | 71.2x80x62mm |
| Power consume | 2.1w |
| Power characteristics | |
| From bus current consumption | 107mA |
| From L+ current consumption | 60mA |
| Voltage range | 20.4~28.8V DC |
| Optical isolation（field to logic） | >500V |
| Analog input characteristics | |
| Analog input | 8 |
| Type | Floating thermocouple |
| Common mode rejection | >12dB@120V AC |
| Lead length to the sensor（Max.） | 100meter |
| Circuit loop resistance | 100Ω |
| Noise suppression | 85dB@ 50Hz/60Hz/400Hz |
| Input resistance | ≥1MΩ |
| Inputvoltage（Max.) | 30V DC |
| Module refresh cycle | 580ms |
| Data word format | Temperature data format：Actual temperature x10 |
| Input range | TC type：J、K |
| Measuring principle | Sigma→Delta |
| Resolution | Voltage：15+1Sign bit Temperature：0.1℃/0.1℉ |
| Basic error | 0.1%FS |
| Repeatability | 0.05%FS |
| Cold-side error | ±1.5℃ |
| Address range | VW |
| PID characteristics | |
| PID algorithm | PID parameters self-tuning, temperature linkage |
| Sampling time | 1second |
| PID type | P、PI、PD、PID |
| PID output type | Analog or PWM pulse width control |
| PID output polarity | Bipolar or unipolar |
