| Part Number: | UE20 | - | 4 | RTD |
|---|---|---|---|---|
| Explanation: |
Platform UE20 - UE20 I/O platform |
Inputs 4 - 4 input channels; fixed for this model |
Function RTD - Resistance temperature measurement; this breakdown covers UE20-4RTD only |
The UE20-4RTD measures four RTD inputs using two-, three- or four-wire sensor connections. It provides 16-bit resolution, temperature values in 0.1°C increments and eight bytes of process data. Magnetic isolation separates the internal bus from field inputs; channels are not isolated from each other.
| Sensor type | Configured temperature range |
|---|---|
| PT100 | -200°C to +800°C |
| PT200 | -200°C to +630°C |
| PT500 | -200°C to +630°C |
| PT1000 | -50°C to +300°C |
| Ni120 | -79°C to +309°C |
The module has an overall measuring envelope of -200°C to +850°C. Use the configured sensor ranges above for temperature selection; the overall envelope does not extend a sensor type beyond its configured limit.
| Characteristic | UE20-4RTD |
|---|---|
| Sensor category | RTD, resistance temperature detector |
| Channels | 4 |
| Process data | 8 bytes |
| Sensor wiring | Two-, three- or four-wire |
| Resolution | 16 bits; 0.1°C per count |
| Precision | ±0.3% |
| Isolation | Magnetic isolation between internal bus and field inputs; no channel-to-channel isolation |
| Fault diagnostics | Supported |
| Diagnostic conditions | Sensor disconnection and parameter assignment errors |
| Process alarms | Individual upper and lower limits for each channel |
| Characteristic | Specification |
|---|---|
| Internal bus supply | 5V DC nominal; 4.75-5.25V DC |
| Bus supply current | 190mA typical at 5V DC |
| Station field circuit voltage | 24V DC, +20%/-15% |
| Connection method | Spring terminal blocks |
| Conductor cross-section | 0.2-1.5mm² |
| AWG conductor range | AWG28-AWG16 |
| Stripping length | 8-9mm |
| Characteristic | Specification |
|---|---|
| Height × width × depth | 100mm × 12mm × 68mm |
| Mounting | 35mm DIN rail |
| Ingress protection | IP20 |
| Operating temperature for application | -10°C to +55°C |
| Storage temperature for application | -20°C to +60°C |
| Operating relative humidity | 5-95%RH, non-condensing |
| Storage relative humidity | Below 90%RH, non-condensing |
