Edgetech PPM1, Руководство оператора, Страница: 23 / 29

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6.0 MAINTENANCE
6.1 GENERAL
Very little maintenance is required for long term operation of the PPM1 and
PPM2 Trace Moisture Analyzers. They have been designed for continuous
operation over very long periods of time. The electronics unit needs no
maintenance. The trace moisture sensor may gradually get contaminated, and
may have to be returned to the Factory for cleaning after very long periods of
operation.
6.1.1 FILTERS
It is considered good practice to have an upstream particle filter in the line. It will
keep the moisture sensor clean and will keep dust and other contaminants out of
the cavity. The filter should be non-hygroscopic, and preferably should be made
of sintered stainless steel. A maintenance schedule should be set up to clean or
replace the element periodically. A clogged filter will retain moisture and slow
down the system.
6.1.2 BATTERY MAINTENANCE
The PPM2 Portable Analyzer contains a pair of gel call batteries. These must be
periodically recharged. A plug-in charger is included with the system. After a
few discharge cycles to determine available operating time, you should be able to
initiate a preventative maintenance program for periodic recharging that will keep
the unit ready for use. If desired, the battery charger may be plugged into the
PPM2 continuously without harm.
6.2 GASES
Certain gases must never be used with this system. See GASES TO AVOID in
the Introduction section of this manual. The use of these gases may damage or
contaminate the moisture sensor.