DeWalt DW077 Guide D'utilisation page 9

conductive nature such as, but not limited to, steel wool, alu-
minum foil, or any buildup of metallic particles should be kept
away from charger cavities. Always unplug the charger from the
power supply when there is no battery pack in the cavity. Unplug
charger before attempting to clean.
6. Do not freeze or immerse charger in water or any other liquid.
WARNING: Shock hazard. Don't allow any liquid to get inside
charger. Electric shock may result.
CAUTION: Never attempt to open the battery pack for any rea-
son. If the plastic housing of the battery pack breaks or cracks,
return to a service center for recycling.
LASER OPERATION
• Ensure that the battery is properly charged. If the "Power" LED
light is flashing, the battery needs to be charged.
• To extend battery life per charge, turn the laser off when it is not
in use.
• To ensure the accuracy of your work, check the laser calibration
often. See the "Field Calibration Check" section of this manual.
• Before attempting to use the laser, make sure the tool is posi-
tioned on a relatively smooth,secure surface.
• Always mark the center of the laser line or dot. If you mark dif-
ferent parts of the beam at different times you will introduce
error into your measurements.
• To increase working distance and accuracy, set up the laser in
the middle of your working area.
• When attaching to a tripod or wall, mount the laser securely.
• When working indoors, a slow rotary head speed will produce
a visibly brighter line, a faster rotary head speed will produce
a visibly solid line.
• To increase beam visibility, wear the Laser Enhancement
Glasses provided and/or use the Laser Target Card to help find
the beam.
• Extreme temperature changes can cause movement or shifting
of building structures, metal tripods, equipment, etc.,which can
effect accuracy. Check your accuracy often while working.
• When working with the D
E
laser's rotation speed to the fastest setting.
• If the laser is dropped or has suffers a sharp blow, have the cal-
ibration system checked by a qualified service center before
using the laser.
SPECIFICATIONS
Light Source
Laser Wavelength
Laser Power
Rotation Speed
Self-Leveling Range
Indoor Visible Range
Range with Detector
Level Accuracy
Power Source
Operating Temperature
Storage Temperature
Usage
Altitude
Maximum Relative
Humidity
Rated Pollution Degree
7
WALT Digital Laser Detector, set the
Semiconductor laser diode
630 – 680nm Visible
<5mw, CLASS IIIa LASER
PRODUCT
0 – 800 rpm
± 5°
200' (61m) diameter
1500' (450m) diameter
± 1/8" per 100'
(± 3mm per 31m)
9.6V–18V D WALT batteries
E
23°F to 122°F (-5°C to 50°C)
-4°F to 158°F (-20°C to 70°C)
Indoor
Up to 6560' (2000m)
95%
2