BNC 1621M - Manual (Page 21)

1621M OPERATING MANUAL
3. MAINTENANCE
3.1 Maintenance involves preventive services, battery replacement and a
regular performance check (according to 2.4.3 - 2.4.5).
3.2 Preventive services include external examination, dusting
and
decontamination in the event of radioactive contamination.
For decontamination wipe the case of the dosimeter using a
cloth wetted with ethanol.
3.3 Battery replacement:
• Unscrew and remove the cover of the battery compartment;
• Remove the old battery;
• Insert the battery into the compartment making sure that
the positive (“+”) end of the battery is inserted fi rst;
• Replace the battery compartment cover.
After the battery is replaced, the LCD will display all segments,
and then the dosimeter should enter the measurement mode. All
the previous measurements and parameters necessary for proper
operation of the dosimeter are stored in its non-volatile memory.
NOTE: Insert a new battery before sending a dosimeter for
calibration.
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