Troubleshooting - Craftsman 320.48252 Owner's Manual

6. Check the batteries regularly to avoid deterioration. ALWAYS remove the batteries from the
tool, if it is not going to be used for an extended period of time
7. Replace the batteries when the low battery icon is continuously displayed on the LCD.
8. DO NOT disassemble the tool This will expose the user to hazardous radiation exposure,
9. DO NOT use the tool in noisy conditions, especially if the frequency of the noise is
about 40 KHz
10_ DO NOT attempt to change any part of the laser lens_
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PROBLEM
In accu rate
measurement
Err appears on
the screen
CAUSE
Battery runs out.
Measured distance is out of the
specified range
(2 - 50 feet / .06 to 15m)
The tool is not held
perpendicularly to the target°
The tool was moved during the
measuring process.
The target surface does not
provide good reflection for the
ultrasonic pulse (i,,e,,soft and
irregular surface such as thick
carpet, curtain or irregular
wallpaper, etc.).
............ i .i H., HH,,, •
The target surface does not
provide good reflection for the
ultrasonic pulse (ioeosoft and
irregular surface such as thick
carpet, curtain or irregular
wallpaper, etc,).
Obstructions are within the
sound range,,
The tool is not held
perpendicularly to the target,
SOLUTION
Replace with fresh battery_
Adjust the distance to be within
the specified range.
Hold the tool perpendicularly to
the target.
Do not move and re-measure,,
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Cover the target surface with
cardboard or plywood,
Cover the target surface with
cardboard or plywood_
Remove the obstructions away
.......... .,, i,,uiu
Hold the tool perpendicularly to
the target.
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