Chapter 8: Troubleshooting
PROBLEM | CAUSE | CORRECTIVE ACTION |
Airflow Monitor | Wrong alarm set | Airflow monitor was not properly |
Malfunction | point. | adjusted. Repeat calibration steps |
(Continued) |
| outlined in this manual in Chapter 6 |
|
| or in the supplied Digital 1000 |
|
| Monitor Manual. |
| Constant audible | Check airflow and calibration of |
| alarm. | airflow monitor. See Chapter 6. |
| Continuous alarm. | Check the face velocity of the |
|
| enclosure as the airflow of the |
|
| system may have changed. If |
|
| incorrect, adjust the speed control to |
|
| increase face velocity. The HEPA |
|
| filter may have become loaded. If |
|
| face velocity is correct, calibrate the |
|
| airflow monitor outlined in this |
|
| manual in Chapter 6. |
| Monitor alarms; air | Lightly clean the airway with clean |
| way to airflow | air. Be careful not to touch sensitive |
| monitor sensor is | electrical components. |
| blocked by insects, |
|
| dust or debris. |
|
| Audible disable | An alarm condition must be |
| will not stay | continuously present before the |
| operational. | audible alarm can be silenced. If |
|
| flow conditions fluctuate near the |
|
| alarm set point, the airflow monitor |
|
| will automatically reset it. Action |
|
| should be taken to bring the |
|
| enclosure airflow into proper |
|
| operating parameters or adjust the |
|
| alarm set point lower. |
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