AccuLine 40-6620 Instruction Manual - Page 11

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Calibration
Re-calibration can be performed as described below.
1. Use a level to mark a horizontal reference line on the wall.
2. Power on the unit to compare the projected horizontal line with its references.
Compensator has to be locked before making calibration adjustments.
If it tilts, remove the side plastic screw/plug and use an allen wrench to
calibrate the unit through its side calibration hole. Rotate the allen wrench
clockwise when the horizontal line tilts right. Rotate the allen wrench
counter-clockwise when the horizontal line tilts to the left.
3. If the horizontal line is too low or too high, carefully disassemble the
window frame by removing the outer plastic screw/plug and the inner metal
screw. Use an allen wrench to calibrate the adjustment screws located between
the glass prisms. Rotate the allen wrench clockwise when the horizontal line is
too low. Rotate the allen wrench counter-clockwise when the horizontal line is
too high. Reassemble the window frame after completing the calibration.

9. Technical Specifications

Laser Wavelength
Laser Classification
Maximum Power Output
Accuracy
Interior Range
Self-Leveling Range
Power Supply
Battery Life
Dimensions
Weight
Working Temperature
Center Screw Thread
IP Protection Class
©2007 Johnson Level & Tool
635nm±10
Class II (40-6620)
Class IIIa (40-6625)
≤1mW (40-6620) ≤5mW (40-6625)
±1/8"/35 ft. (±3mm/10m)
Up to 100 ft. (30m) depending upon light
conditions (40-6620)
Up to 150 ft. (45m) depending upon light
conditions (40-6625)
± 5°
3 "AA" alkaline batteries
Approx. battery life 35 hours continuous use
2" x 5-1/4" x 6-1/4" (51x133x159mm)
2 lbs. (0.93 Kg)
14°F to 113°F (-10°C to +45°C)
5/8" – 11; 1/4" – 20
55
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