Frye FONIX FP40D - Manual (Page 40)

32 FONIX FP40 Portable Hearing Aid Analyzer
2.10 The Opening Screen
The Opening Screen of the FP40 (Figure 2.10) contains some useful information including:
• Software version of your analyzer,
• Option code of your analyzer,
• RS232 availability,
• Frye Electronics contact information.
In the Opening Screen, you can turn on and off the screensaver, and switch from LCD to VGA dis-
play mode. The screensaver turns off the LCD backlighting if the unit hasn’t been used in 15 min-
utes. You can deactivate it by pressing any key.
Figure 2.10—Opening Screen of the FP40
2.11 The Battery Option (not available on FP40-D)
FP40s that have a battery pack will have a “fuel gauge” on the main display reporting the state of
charge of the battery.
The reading on the fuel gauge will be accurate in a minute or two after pushing the OPERATE but-
ton. A new, fully charged battery will operate the instrument for approximately three hours. The
fuel gauge will be accurate plus and minus 20%. There is no way to completely predict how long
a charge will last because of all the variables of temperature, battery condition, power supply vari-
ance, and load.
Close examination of the fuel gauge will reveal an arrow pointing to the right when the battery
is being charged, while an inverse arrow pointing to the left will be displayed when the battery is
being discharged. If the fuel gauge is halfway between E and F, you have approximately half the
battery time left, and so on.