| Error Code | Meaning | Solution | |------------|---------|----------| | Err2 | Sensor open circuit | Check thermocouple continuity. Replace if broken. | | Err3 | Sensor reverse polarity | Swap the two sensor wires. | | Err4 | Input signal out of range | Verify 4-20mA loop is not shorted. | | Err5 | Output current overload | Reduce load; check for short across output relay. | | EE.rr | EEPROM write failure | Contact manufacturer – internal hardware fault. |
There was a list of names. Most were crossed out. But the last one, written in fresh, wet red ink, made his blood freeze.
Document ID: MN-TEQD-2301B-EN Release Date: [Insert Date]
