Johnson 40-6780 Manuals

Download this manual at www.johnsonlevel.com/manuals 40-6780 40-6780 Line Laser Detector Operator’s Manual INSERTING BATTERIES Thank you for purchasing this Johnson line laser detector, model 40-6780. This detector is the fastest way to locate red beam line laser signals in bright locations or over long distances where it’s difficult to see the laser beam with the naked eye. This laser detector features: • LCD display • LED indication of beam position • Audio indicator with volume control • Auto-off timer • Grade rod clamp • Dust and rain resistant construction High accuracy: • 0.019” from 0’ to 50’ • 0.039” from 50’ to 100’ • 0.059” > 100’ 1. Remove the battery cover by depressing the retaining tab on the bottom edge of the battery door and lifting the cover off. 2. Insert a 9V battery following the indicated polarity printed inside of the battery compartment. 3. Replace the battery cover and, if desired, replace the grade rod clamp. INTERPRETING THE LCD DISPLAY GETTING STARTED 1. Ensure the line laser you are using has a pulse mode operation; otherwise it will not be detectable. See your laser’s operator’s manual for details. Not all line lasers are compatible with laser detectors. 2. Insert the included 9V battery. See “INSERTING BATTERIES.” 3. Attach the detector to the included clamp (if using a grade rod) or remove the clamp if using the detector on a standalone basis. 4. Press to turn on the detector. 5. Enable or disable the audio indicator by pressing . 6. Operate the detector. See “USING THE DETECTOR.” 7. When you are finished using the detector, power it off by pressing . This detector will also automatically power off after 6 minutes of inactivity (no buttons pressed or laser signals received). NOTE: If the detector battery is low, the low battery indicator will flash to indicate the battery should be replaced soon. 1. POWER ICON - Indicates the detector is on and ready to receive laser signals. 2. LOW BATTERY INDICATOR - Indicates the battery needs to be replaced. 3. Used on select models only. This indicator is always illuminated on this model. 4. AUDIO - Indicates sound is enabled. 5. BEAM LOCATION INDICATOR - Indicates the direction to move the detector to find the laser beam. See “USING THE DETECTOR”.