CN 2110 Temperature Controller
Troubleshooting
continued
| Symptom | Probable Cause | Correction Steps | ||
|
|
|
|
|
|
| Process not | 1. | Incorrect settings | 1. | Check Proportional |
| in control | 2. | Thermocouple |
| Band setting and |
|
|
| Automatic Reset | ||
|
|
| Wiring |
| |
|
|
|
| setting | |
|
|
|
|
| |
|
|
|
| 2. | Check thermocouple |
|
|
|
|
| polarity |
|
|
|
|
|
|
| Instrument continu- | 1. | Severe electrical | 1. | Separate sensor wiring |
| ally goes through |
| noise |
| from other wiring |
|
|
| 2. | Apply power line filter | |
|
|
|
| 3. | Contact Omega |
|
|
|
|
| |
| Display reads | 1. Fan for T10 output | 1. | Check for and clear any | |
| FAn FAIL, CN |
| has failed |
| obstruction in fan, then |
| 2110 disables |
|
|
| power unit up and |
| control output |
|
|
| check display |
|
|
|
| 2. | Discontinue operation, |
|
|
|
|
| replace fan assembly, |
|
|
|
|
| or return to Omega for |
|
|
|
|
| replacement |
Section | 23 | CN 2110 |