Greenlee 500XP Instruction Manual page 9

Operation (cont.)
• Precision tone (500XP only) – red and green LED brightness
is proportional to 577 Hz and 983 Hz, respectively.
acAlert Hazardous AC Voltage Warning
®
The 500XP is not an AC mains power detector. This warning
feature is included only as an aid to safety. This product is not
intended to be used with AC mains power but should indicate if
near a hazardous AC voltage.
Available in selected programs of the 500XP only (not 500FP),
the acAlert feature is important in the filtered modes where
®
there is little hum from the loudspeaker. Should AC at 50 Hz
or 60 Hz be detected, the probe will rapidly flash the red and
green LEDs alternately and generate a "booop-(audio)-booop"
warning sound. Pair tracing tones can be heard during the
pauses. The warning tone may be overridden for 30 seconds by
pressing both buttons while the tone is being generated.
Program Options
The configuration of the mains power hum and precision tone
filters and acAlert
are five settings; 1 is the default that should suit most situa-
tions. The chosen setting is stored in non-volatile memory.
Programming
Option
1
2
3
4
5
warning can be adjusted if required. There
®
Start-up
acAlert
Mode
Hum Lights only
rejection
Full
Basic Full
Power
Hum
®
Reject
(Hz)
Off
50 &
60
60
50
500XP • 500FP
Precision
Tones Comment
(Hz)
Default
acAlert
577 &
983
acAlert
577
983 200XP/50
®
muted
®
on
200XP
9