Mid-Continent Instrument True Blue Power TB20 Series, Руководство по установке и эксплуатации

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36 Manual Number 9019286 • Revision E, January 06, 2022
Temperature Performance
The TB20 incorporates cell technology that performs well over temperature extremes. It can
support an engine start from as low as -5°C (23°F), depending upon the engine start profile.
Cold temperature performance is extended to as low as -40°C (-40°F) when using the
internally powered heater and allowing the appropriate pre-heat time. This feature prevents
the necessity to remove the unit from the aircraft when stored at extremely low temperatures
overnight or for longer periods of time. The battery also exhibits excellent high temperature
performance, rated for operation as high as 70°C (158°F). The data below demonstrates
expected pre-heat duration based on the battery starting at several different cold
temperatures.
Figure 4.4
Battery Heating Performance
‐40
‐30
‐20
‐10
0
10
0 2 4 6 8 10 12 14 16 18
Temperature
(°
C)
Time (Minutes)
Battery Heating Performance
‐40 C
Ambient
‐20 C
Ambient
0 C Ambient