Damage caused by overheating may occur if the area around the fan is restricted, the intake air is too warm, or the air filter becomes clogged.
The air filter must be removed and cleaned at least every 30 days, or more frequently if the calibrator is operated in a dusty environment. The air filter is accessible from the rear panel of the Calibrator. To clean the air filter:
1. Disconnect line power.
2. Remove the filter by pulling the filter's retainer downwards (it hinges at the bottom) and removing the filter element.
3. Clean the filter by washing it in soapy water. Rinse and dry it thoroughly before reinstalling.
4. Reinstall the filter.
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