Johnson Level & Tool Mfg. 40-6530 - Manual (Page 17)

©2005 Johnson Level & Tool 17
3. Adjust the adjusting screw to center the bubble.
4. Measure the distance H2 between the top laser beam and the
platform surface.
5. Mark out E in the position that is (H1 –H2 ) lower than point 0.
6. If e – point 0 < 0.394" (10mm), the accuracy is within tolerance.
Otherwise reference section 12 of this document.
9. Technical Specifications
Laser Wavelength 635nm±10nm
Laser Classification Class IIIa
Maximum Power Output
≤5mW
Accuracy Horizontal Rotation = ±3/8"/100 ft.
(±3mm/10m)
Vertical Rotation = ±5/8"/100 ft.
(± 5mm/10m)
Working Range Maximum 100 ft. (30m) depending upon
light conditions
Measuring Range 820 ft. (250m) radius with detector
Self-Leveling Range ±3.5°, Delivers an alarm if beyond range,
and stops rotation simultaneously
Power Supply 4 “C” alkaline batteries (not included)
Rechargeable battery pack, or 6V adapter
Dimensions 5-3/4" x 7-3/4" x 7-5/8" (146 x 197 x 194mm)
Weight 4.4lbs (2Kg)
Working Temperature 14°F to 113°F (-10°C to +45°C)
Center screw thread 5/8" – 11
Rotation Speed 300 rpm, 600 rpm, 900 rpm
Range Scan Area Continuous, small range, large range, point
Enclosure Dust and rain resistant
40-6520_6530 4/20/05 4:12 PM Page 17