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OPERATING POWER INFORMATION
Internal Battery Operation
The 212 is designed primarily for operation from the internal
rechargeable batteries.
internal batteries depends upon trace intensity, and battery charge
and discharge temperature.
charged batteries at maximum trace intensity when charged and
operated at +20°C to +30°C (+68°F to +86°F) is 4.5 hours. Longest
operating time is provided at lower trace intensity.
The POWER (BATTERY) indicator provides an indication of the
operating power. When the light extinguishes not more than 10
minutes of instrument operating power remains.
possesses an automatic battery protection circuit to prevent
excessive discharge and the resulting battery damage if the
instrument is operated below the battery charge level of
approximately 10 volts.
Battery Charging
The charging characteristics of the nickel-cadmium (Ni-Cd) cells
used in the 212 vary with the temperature at which they are
charged. Batteries charged at about +20°C to +30°C (+68°F to
+86°F) will deliver more energy than when the same batteries are
charged at a higher or lower temperature.
6
The operating time provided from the
Typical operating time from fully
212 Operators Handbook
The 212
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