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