TSI Instruments dusttrak II 8530, Руководство по эксплуатации и обслуживанию

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Chapter 4 54
Replacing the Filters in the External Pump Module
The external pump module provided with Model 8530EP is designed to run
continuously for about a year (8760 hours). There are two HEPA filters that
protect the pump from contamination
—one on the suction side of the pump
and the other on the discharge side of the pump. The discharge side of the
pump collects particles shedding from the vanes of the pump and will turn
black over time. The HEPA filters will have to be replaced once a year.
To access the filters open the top cover of the pump module. The two HEPA
filters are identified in the figure below. The two filters can be replaced by
disconnecting the soft tubing between the filters, pump, and the casing
connectors.
C a u t i o n
When replacing the HEPA filters, make sure they are
oriented in the correction direction as shown in the picture
above.
Storage Precautions
When storing the DustTrak monitor for more than 30 days, you should charge
and remove the batteries. This prevents damage due to battery leakage.
This instrument must be stored in a location where the temperature remains
between
–20 and 60°C (–4 and 140°F).
User Replaceable HEPA Filters