Johnson Level & Tool Mfg. 40-6550 - Manual (Page 21)

©2005 Johnson Level & Tool 21
9. If h
≤0.157" (4mm), the unit’s accuracy is within tolerance.
If h >0.157" (4mm), but <0.394" (10mm), OR h
≥0.394" (10mm),
please reference Section 12 of this document.
Note: The above procedure using a distance of 65 ft. (20m) from a
wall is suggested due to the difficulty of precisely marking the center
of laser points at shorter distances.
9. Technical Specifications
Laser Wavelength 532nm±10nm
Laser Classification Class IIIa
Maximum Power Output
≤5mW
Accuracy Horizontal Rotation = ±1/8"/100 ft.
(±0.1mm/10m)
Vertical Rotation = ±3/16"/100 ft.
(±1.5mm/10m)
Working Range Maximum 100 ft. (30m),
depending upon light conditions
Measuring Range 656 ft. radius (200m) with detector
33 ft. (10m) with remote
Auto-Leveling Range ±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 (included)
Dimensions 7.4" x 5.91" x 8.15" (188 x 150 x 207mm)
Weight 5.512 lbs. (2.5Kg)
Working Temperature 32°F to 104°F (0°C to 40°C)
Center Screw Thread 5/8" – 11
Rotation Speeds 200 and 600 rpm
Range Scan Area Continuous, small range, large range, point
Enclosure Dust and rain resistant
40-6540_6550 English 6/28/05 9:44 AM Page 21