Note: If any bars display on the screen, metal is present. Small targets or
targets deep within the surface may only illuminate some of the bars and not
the centerline or audio tone. In this case, use the highest indication to
determine the metal position.
As with Metal Scan Mode, AC Scan Mode has interactive calibration and
works in the same manner.
SCANNING IN AC MODE
1.(Figure A) Press mode switch button to AC Scan mode. Press the tool flat
against the wall, then press and hold the Scan button. Wait for the beep to
confirm calibration has completed before moving the tool. Once calibration
has completed, slowly slide the scanner across the surface. Mark the location
where you get the highest AC indication (the most Middle bars on the screen).
If it is a strong target, the top indicated arrow will show, and a steady beep
will sound. Continue in same direction until display bars reduce. Reverse
direction and mark the spot where the display bars peak from the reversed
direction. The midpoint of the two marks is the location of the center of the
live AC wiring. If the unit indicates live electricity over a large area, you can
reduce the sensitivity of the tool to refine the scanning area and more
accurately locate the live AC wiring by following steps 2 and 3 below.
2.(Figure B) To further pinpoint the location of the live AC wiring, scan the
area again. Release the Scan button and then turn the unit back on, this time
starting on the wall over one of the previous marks. This will reset the tool to
a lower sensitivity and narrow the scan area.
3.(Figure C) Scan in both directions as in Step 2. The area indicated should
become smaller so you can more precisely identify the location of live AC
wires. This procedure can be repeated to narrow the field even further.
Note: AC Scan will only detect live (hot) unshielded AC wiring. Please
refer to the WARNING statement , AC WARNING Detection, for more
important details and warnings about AC detection.
BENCHMARK WARRANTY
If this Benchmark tool fails due to a defect in material or workmanship within five
years from the date of purchase, return it to any Home Hardware store with the
original bill of sale for exchange. 3-year warranty for the battery and charger.
This warranty does not include expendable parts including but not limited to
blades, brushes, belts, light bulbs. This warranty covers defects in material or
workmanship only. It does not cover normal wear and tear, failure due to
abuse/misuse, or defects caused by careless or accidental mishandling. If this
Benchmark product is used for commercial or rental purposes, this warranty
does not apply.
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