Johnson 40-6700 - User Manual

Thank you for purchasing this Johnson laser detector! This laser
detector locates red beam (635/650nm) rotary lasers and is ideal for
outdoor and indoor jobsites, large or small, where it’s dicult to see
the laser beam with the naked eye.
This detector features coarse and fine accuracy modes. For rough
work such as excavation, the coarse mode makes it quicker and
easier to detect the laser beam. For critical work such as checking
formwork or floor heights, the fine mode allows precise location of
the laser beam.
This laser detector features:
• Accuracy of 0.04” (fine mode)
• Accuracy of 0.1” (coarse mode)
• LCD display to show grade position
• Audio indicator with volume control
• 10-minute auto-o timer
• Grade rod clamp
• Dust and rain resistant construction
40-6700 Laser Detector Operator’s Manual
www.johnsonlevel.com/manuals
INSERTING BATTERIES
1. Remove the battery cover by depressing gently on the battery
door arrow and sliding the cover in the direction indicated by the
arrow. Lift the exposed end, and remove the cover.
2. Attach a 9V battery to the battery connector, and press the
battery into the housing.
3. Replace the battery cover.
INTERPRETING THE LCD DISPLAY
GETTING STARTED
1. Insert the included 9V battery. See “INSERTING BATTERIES.”
2. Attach the detector to the included clamp (if using a grade rod)
or remove the clamp if using the detector on a standalone basis.
3. Press
to turn on the detector.
4. Press
to enable or disable the audio indicator. When
enabled, the audio indicator icon will be displayed on the LCD.
5. Set coarse or fine accuracy by pressing
. The LCD will
indicate the accuracy mode as follows:
6. Operate the detector. See “USING THE DETECTOR.”
7. When you are finished using the detector, power it o by
pressing
. This detector will also automatically power o
after 10 minutes of inactivity (no buttons pressed or laser signals
received).
COARSE FINE
1. POWER ICON - Indicates the detector is on
and ready to receive laser signals.
2. LOW BATTERY INDICATOR - Indicates it is
time to change the battery.
3. ACCURACY - Indicates coarse or fine
accuracy mode. Coarse accuracy is +/-0.1”,
and fine accuracy is +/- 0.04”.
4. VOLUME - Indicates sound is enabled.
COARSE FINE
5. BEAM LOCATION INDICATOR - Indicates the direction to move
the detector to find the laser beam. If no laser beam is detected
in the detection window, this display will be blank.
MOVE UP MOVE DOWN ON GRADE
PRESS & SLIDE LIFT REMOVE

Summary

Getting Started

Powering On and Audio Indicator

Instructions for turning on the detector and enabling/disabling the audio indicator.

Setting Accuracy Mode

How to set the detector's accuracy mode (coarse or fine) using the LCD indicator.

Detector Operation and Auto-Off

Guidance on operating the detector and its automatic power-off feature after inactivity.

Inserting Batteries

Battery Removal and Insertion

Steps to remove the battery cover, attach a 9V battery, and replace the cover.

Interpreting the LCD Display

Power Icon

Indicates the detector is on and ready to receive laser signals.

Low Battery Indicator

Alerts the user when it is time to change the battery.

Accuracy Mode Indicator

Shows coarse (+/-0.1") or fine (+/-0.04") accuracy mode.

Volume Indicator

Confirms that the audio indicator is enabled.

Beam Location Indicator

Guides the user on the direction to move the detector to find the laser beam.

Using the Detector

Preparation and Positioning

Instructions for preparing the detector and positioning it to face the laser beam.

Locating the Laser Beam

Guidance on moving the detector to detect the laser beam using visual and audio cues.

Reading Grade Position

How to read grade position using indicators on a grade rod or the detector housing.

Johnson 40-6700 Specifications

General

Model	40-6700
Category	Measuring Instruments
Type	Digital Multimeter
Power Source	9V Battery
Operating Temperature	0°C to 40°C
Range	Varies by function, see documentation
Units of Measure	V, A, Ω
Display	LCD