| Part Number: | UF20 | - | 8 | TC |
|---|---|---|---|---|
| Explanation: |
Platform UF20 - UF20 I/O platform; this breakdown covers the two listed thermocouple modules |
Inputs 4 - 4 input channels |
Function TC - Thermocouple input |
Choose UF20-4TC for four thermocouple inputs or UF20-8TC for eight. Both models support K, J, T, E, N, S, R, B and C sensors, two-wire connections and internal or external cold junction compensation.
| Model | Channels | Process data | System feed current |
|---|---|---|---|
| UF20-4TC | 4 | 8 bytes | <70mA |
| UF20-8TC | 8 | 16 bytes | <100mA |
| Characteristic | Both models |
|---|---|
| Sensor category | Thermocouple |
| Sensor types | K, J, T, E, N, S, R, B, C |
| Sensor wiring | Two-wire |
| Cold junction compensation | Internal and external; accuracy ≤3K |
| Resolution | 16 bits; 0.1°C per count |
| Precision | ±0.5% |
| Temperature coefficient | ≤50ppm/K |
| Module measuring range | -100°C to +2320°C |
| Interference suppression frequencies | 10Hz, 50Hz, 60Hz and 400Hz |
| Reverse protection | Supported |
| Isolation method | Magnetic isolation |
| Fault diagnostics | Supported |
| Diagnostic conditions | Sensor disconnection and parameter assignment errors |
The overall module measuring range does not apply in full to every thermocouple type. Select the sensor and its usable temperature range for the measurement required.
| Characteristic | Both models |
|---|---|
| Operating voltage | 24V DC, +20%/-15% |
| Connection method | Push-in terminal blocks |
| Conductor cross-section | 0.34-1.5mm² |
| Conductor size | AWG22-AWG16 |
| Stripping length | 8-10mm |
| Height × width × depth | 75mm × 12mm × 105mm |
| Mounting | 35mm DIN rail |
| Ingress protection | IP20 |
| Operating temperature | -10°C to +55°C |
| Storage temperature | -20°C to +85°C |
| Relative humidity | 5-95%RH, non-condensing |
