T B M
PILOT’S INFORMATION MANUAL 700
SECTION 7
DESCRIPTION
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Page 7.8.10
Rev. 5
INDICATING (Figure 7.8.4)
Electrical system indicating consists of a voltmeter and an ammeter located
on the upper panel, as well as warning lights grouped on advisory panel.
The voltmeter indicates the voltage with generator connected to main bus
bar. When the starter generator or stand–by generator are operating
normally, the voltmeter needle will be in green sector.
The ammeter, graduated from - 200 to + 200 amperes, indicates the battery
charge and discharge. The needle indicates a positive value when battery
and starter generator (or stand–by generator) are connected to main bus bar.
Indications provided by warning light illumination are as follows :
”BAT OVHT” : Overheat inside the battery
”BAT OFF” : Battery is not connected to main bus bar and the latter is
supplied by another power source
”MAIN GEN” : Starter generator is not connected to main bus bar
”LO VOLT” : Battery voltage is below the minimum value and main bus
bar is supplied
”GPU” : Ground power receptacle access door is not closed
Moreover, the indicating system may be completed by a battery temperature
indicator located on the R.H. lower part of the R.H. instrument panel. This
indicator is connected to a probe installed on the battery. A ”BAT TEMP
TEST” push–button located near the indicator allows to test the illumination
of the ”BAT OVHT” warning light and to check simultaneously, on the
indicator, the increase of the indicated temperature.
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