Johnson 1876-2400, 1876-4800 Quick Start Manual

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Thank you for purchasing this Johnson digital level! This level helps you accurately determine plumb, level or any angle in between perfect for building ramps, setting drainage pitches and more!

This digital level features:

• Accuracy of 0.10° (at 0°/90°)

• Accuracy of 0.20° for all other angles

• Reads in units of in/ft, mm/m, degrees and percent

• Angled backlit display for easy reading

• IP54 dust and water resistance

• Hold and reference modes

1876 Series Digital Levels Quick Start Guide (1876-2400 • 1876-4800)

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We want to get you up and running as quickly as possible - but this quick start guide is not a replacement for reading and understanding your operator’s manual! For complete safety & operating instructions, refer to the operator’s manual included with your tool or scan the QR code.

LCD SCREEN & BUTTON OVERVIEW

LEVEL INDICATORS (2)

SOUND INDICATOR

BATTERY INDICATOR

GETTING STARTED

1. Insert fresh batteries - see “INSTALLING THE BATTERIES”.

2. For best results, calibrate your level prior to each use. See “CALIBRATION PROCEDURE” for details.

3. Power on the digital level by pressing .

4. Enable or disable sound by pressing

5. Set your operating units by pressing

6. Enable the backlight by pressing

. The backlight will automatically turn o after 30 seconds of inactivity. Press any button or move the level to re-enable the backlight.

7. Set the desired auto shuto timer by pressing and holding

The LCD will indicate “5” for 5 minutes or “2H” for 2 hours.

8. Set a temporary zero reference by pressing

. See “SETTING A

ZERO REFERENCE”. To exit reference mode, press

again.

9. To hold a measurement, press

. To return to normal operation,

press

again.

10. During operation, the level indicators will show which direction the digital level must be tilted to achieve a reading of zero:

11. The audio alert will increase in speed as you approach closer to zero, and turn into a solid tone when you have achieved zero.

12. To power o the level, press

INSTALLING THE BATTERIES

1. Always use fresh batteries (2xAAA).

2. Use a #1 Philips screwdriver to remove the battery cover.

3. Insert the battery according to the polarity indicated on the level and in the diagram below.

4. Replace the cover - do not over-tighten the screw.

HOLD INDICATOR (2)

UNIT DISPLAY (2)

Powers on/o the level Enables/disables sound Sets the temporary zero reference Changes the displayed unit or auto shuto timer Enables/disables the backlight Freezes the current screen reading Initiates calibration mode

Move Left Side Up On Grade Move Right Side Up

REFERENCE INDICATOR (2)

MAIN DISPLAY

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TROUBLESHOOTING: “Erro” MESSAGE

If this digital level is tilted past approximately 30° forward or backward (in the non-operational direction), “Erro” will be displayed on the screen. To return to normal operation, bring the level back to within 30° of its standard operating position.

CALIBRATION PROCEDURE

Calibration is quick and easy, and is the best way to ensure your level is reading consistently every time you use it. We recommend calibrating at the start of each critical job, or when the level is subjected to drastic changes in temperature (such as going from a cold car to a warm jobsite).

To calibrate your digital level:

1. Place the level against a wall so that the bubble in the horizontal vial is in the center of the two indicator marks and the LCD is facing you.

2. With the level powered ON, press and hold

for three

seconds.

3. The LCD will ﬂash “CAL” while calibration is in progress.

4. If calibration is successful, the LCD will brieﬂy indicate “rdy” and return to normal operation.

5. If the level fails to calibrate, it will display “Erro” after the calibration process. If this happens, repeat the calibration procedure. The most common reasons the level will fail to calibrate include:

CALIBRATION POSITION

Reference mode temporarily sets the digital level’s current reading to zero without changing the calibration of the digital level.

Reference mode is ideal to speed up your work in a variety of scenarios:

1. When taking repeat measurements, such as checking multiple ramps for ADA compliance, setting a consistent drainage slope, or adjusting concrete formwork at multiple points, reference mode can be used to make the desired target “zero”. Then, a reading of “zero” in reference mode means you have achieved your desired slope.

2. When trying to ﬁnd the dierence between two slopes, reference mode can eliminate the mathematics and simplify the task. Set the level on the ﬁrst slope, enable reference mode, and read your second slope. The displayed value is the dierence between the angles.

3. When trying to ﬁnd a relative angle on an unlevel surface, such as setting a blade angle on a saw that is setting on non-level ground, reference mode can compensate for the angle of the ground. Using reference mode, you can set the blade angle directly without the need to compensate for the non-level ground.

To enter reference mode, press

. The digital level will set the current measurement to “0.0” or “0 in/ft”, and all measured angles will be relative to this setpoint.

To exit reference mode and return to normal operation, press

SETTING A ZERO REFERENCE

• Moving the level during calibration

• The level is too far from its factory zero-point (not leveled)