Teledyne PEM-9002 - Digital flue gas analyzer - Manual (Page 46)

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Storing the instrument is only recommended if the NiCad battery is fully charged. If the instrument has to be
stored for a prolonged time (approx. 2 weeks or longer) it is recommended to leave the instrument connected to
the charger. The same applies to low-level discharge of the battery: leave the instrument connected to the
charger for a longer period (up to 12 hours).
If the instrument is operated at temperatures exceeding the admissible temperature range, if the NiCad battery is
older, or if incomplete charging cycles (charging/discharging) are performed, it is possible that the display no
longer corresponds to the current status of the battery.
In this case the display is corrected as follows: discharge the battery by switching on until the instrument switches
off automatically. After that, connect the instrument to the associated charger and wait until the end of the
charging period (max. 4 hours). When the charging process is completed, the
switches off
automatically.
PEM9002
Used or Dead Battery
For replacement of a Used or Dead battery, the analyzer has to sent back to the supplier / manufacturer.