David White AutoLaser 3110-GR Instruction Manual page 16

3. Replace the battery tray. Make sure the battery contacts between the battery pack
and the instrument compartment are aligned.
NOTE: Do not mix old and new batteries. Replace all batteries at the same time with new batteries.
Remove batteries before storage of the instrument.
Rechargeable Battery Pack
If you are using a rechargeable battery pack (Cat #57-NB700), your instrument will provide
approximately 14 hours of intermittent use with each full charge. The batteries will begin to
perform optimally after five full charges and discharges. You may charge the battery pack within
the instrument.
Ensure the power is off, and connect the charging plug to the appropriate charging jack on the
bottom of the battery pack. Then plug the charger into the appropriate 120/230V AC outlet. Charge
time is typically around 8 hours . The instrument can be charged and used at the same time, but
only a minimal charge will be applied to the battery pack.
CALIBRATION
Your 3100 Series Self-Leveling Laser is a sealed instrument and is calibrated to precise accuracies
at the factory. However, a calibration check is recommended before the initial use of your laser,
and then periodically from that point forward. Be sure to allow time (up to 60 seconds) for the
instrument to completely self-level before each check.
Upright Position Peg Test – X axis (All models)
1. To test the X axis, mount the laser on a tripod or a level, sturdy surface and place
100 feet (30m) away from a wall. Face the "X+" side of the instrument to the wall (Fig. 16).
2. Press the "A" button and allow the instrument to self-level. Using the laser detector, locate
and mark the position of the laser line on the wall Position "A").
3. Loosen the instrument from the tripod and rotate the instrument 180°. Ensure that the height
of the tripod does not change, as this will affect your results. Secure and re-level
the instrument.
4. Again, using the laser detector, locate and mark the position of the laser on the
wall (Position "B").
5. Mark the centerline between Position A and Position B (Position C). Callibration is necessary
if the vertical difference between Position A and Position C or Position B and Position C is
greater than the specified accuracy.
Repeat the above steps to ensure a correct reading. If the distance is greater than specified
accuracy, you will need to calibrate the X axis.
NOTE: For 3150 and 3175 Spot Mode can be used without detector if designed
16 • 3100 SERIES