Emerson Rosemount 935, Справочное руководство

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6 Maintenance
6.1 General maintenance
Keep the viewing windows on the source and detector as clean as possible.
The frequency of cleaning operations depends on the existing environmental conditions
and the applications used.
6.2 Periodic maintenance
Keep the viewing windows on the source and detector as clean as possible. Clean the
optical surfaces periodically.
Note
The frequency of cleaning operations is ultimately dependent upon the existing
environmental conditions and the applications used.
When performing periodic maintenance:
• Proper maintenance will allow the system to retain maximum performance and
reliability.
• Align the detector each time that the source or the detector has been opened or
moved for any reason.
• The signal verification check corroborates the current signals from the flash source
compared to that of previous alignments. We recommend performing this check every
six to twelve months. Check the signal according to threshold levels.
• Zero calibrate every time the detector or source is realigned or the windows are
cleaned.
6.2.1 Clean viewing windows
Procedure
1. Turn off the power to the detector and source.
2. In places where dust or dirt has accumulated on the windows, clean them with a
small, soft bristle brush.
3. Wash the windows thoroughly with water and a mild non-abrasive detergent.
4. Thoroughly rinse the glass surface with clean water, ensuring that no residue is left
behind.
5. Dry the glass with a clean, dry, soft cloth.
6. Enter the date and the names of the person and company who performed the
maintenance service in the maintenance logbook.
7. Turn on power to the detector and source.
8. Verify the signal.
9. Zero calibrate.
Reference Manual Maintenance
00809-0100-4035 May 2022
Rosemount 935 47