ppbRAE 3000 User’s Guide
recharged. The internal charging circuit is designed to prevent
damage to alkaline batteries and the charging circuit when alkaline
batteries are installed inside the instrument. If you try to charge an
alkaline batteries installed in the instrument, the instrument’s display
will say, “Alkaline Battery,” indicating that it will not charge the
alkaline batteries.
Note:
When replacing alkaline batteries, dispose of old ones properly.
WARNING!
To reduce the risk of ignition of hazardous atmospheres, recharge the
battery only in areas known to be non-hazardous. Remove and replace
the battery only in areas known to be non-hazardous.
External Filter
The external filter is made of PTFE (Teflon
®
) membrane with a 0.45
micron pore size to prevent dust or other particles from being sucked
into the sensor manifold, which would cause extensive damage to the
instrument. It prolongs the operating life of the sensor. To install the
external filter, simply connect it to the instrument’s inlet tube.
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