5-12 | IPS-4 Dual Bench (UV / IR) Analyzer
To clean the Measuring Cell and replace its o-rings:
Hazardous Locations
Before proceeding, test the area around the analyzer for flammable
gases. If an explosive gas atmosphere is present, do not power down
the analyzer or any alternate power sources that supply power to the
analyzer components. Proceed only when the area is found to be safe.
1. Manually Zero the analyzer for 10 minutes.
2. After the Zero is complete, close the Sample Line and then the Vent
Line Shut Off valves (in the Oven/Sample System Enclosure) to isolate
the analyzer from the sample stream.
3. Power down the analyzer:
General Purpose (GP) applications:
Open the Electronics Enclosure door and disconnect AC power from
the analyzer and its temperature-control zone circuitry by opening the
Main AC Power, DC Power, Bench Heater, and Oven Heater (if used)
fuses. Refer to the Fuse Legend at the back of the Electronics Enclo-
sure for the locations of these fuses.
Purged Analyzers (Hazardous Locations):
Open the explosion-proof power-disconnect switch to disconnect
power from the analyzer and its temperature zone circuitry. If heated
Sample and Vent Lines are used, disconnect power to them. Open the
Electronics Enclosure.
Wait 5 minutes to allow the high-voltage capacitors in the source-
lamp power supply to discharge.
4. If the Oven/Sample System Enclosure is heated:
Wear insulated gloves and open the door to allow the Oven to cool
down enough to ensure safe handling.
The Oven enclosure and components within the Oven are hot; take
precautions to avoid burning yourself.
!
WARNING
!
WARNING
!
WARNING
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