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Operation (cont.)
To enter programming mode (500XP only): With the unit operat-
ing, press and hold both buttons for more than ten seconds. A
melody of three tones will be heard followed by a number of
beeps that represent the currently chosen setting. Pressing +
or – allows adjustment of the setting.
To confirm the setting, press and hold both buttons for more
than two seconds. A two tone melody will confirm exit of
programming mode.
Low Battery Warning
If the battery drops below 6.5 V, you will hear three tones of
falling frequency. Typically, with an alkaline battery, two hours
of use remain after the first warning is given.
Battery Saver Timeout
If the 500XP/FP is operating and neither button is pressed
for five minutes, the unit will switch off to save power. This is
preceded by three warning beeps and the power-off tone of
"beep-beep-beep-boop".
Power Off
Press the
button for more than 0.5 seconds. The unit will
produce a single lower pitched tone and switch off.
10
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