Recharging the Battery
To recharge the MicroTymp2 battery, place the MicroTymp2 Handle in the
Printer/Charger well with the LCD and buttons facing you. See Figure 39.
NOTE: Charge only with the MicroTymp2 Printer/Charger (#71170,
#71175) or special AudioScope Charging Stand (#71126).
The 2.4 V nickel-cadmium battery used in the MicroTymp2, when fully
charged, provides a full day of operation without the need for recharging —
yielding a minimum of 300 double ear tests. This makes the MicroTymp2
instrument optimal for mass screening or off-site situations where there
may not be a need to print, but there is a need for continuous operation.
The LOW BATT message will appear on the LCD when the battery voltage
is too low to provide reliable operation. All buttons are automatically disabled
when the battery is low to prevent inaccurate results due to inadequate
battery voltage. However, results which were previously stored may be
recalled or printed when the battery is recharged or replaced.
A fully drained battery should be recharged overnight (14-16 hours).
NOTE:
• The MicroTymp2 Handle may be charged indefinitely with-
out damage to the battery.
• Slight heating of the MicroTymp Handle during charging
is normal.
• The battery must be removed if the MicroTymp2 Handle
is going to be stored or placed anywhere other than in the
powered Printer/Charger for more than one month. Failure
to do this can result in damage to the battery and to the
instrument.
• The battery will self-discharge gradually over a period of
approximately 60 days when stored at room temperature
(70˚F/21˚C); storage at higher temperatures accelerates the
discharge rate.
C-46
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