Johnson Level 40-6048 User Manual

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28” and 48” Digital Level

Model Nos. 40-6028 & 40-6048

Instruction Manual

Congratulations on your choice of this Digital Level. We suggest you read this instruction manual thoroughly before using the instrument. Save this instruction manual for future use.

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Table of Contents

1. Kit Contents

2. Features and Functions

3. Location of Parts/Components

4. Operating Instructions

5. Using the Product

6. Self-Check and Calibration

7. Technical Specifications

8. Care and Handling

9. Product Warranty

1. Kit Contents

Description Model No. 40-6028 & 40-6048 Qty.

Digital Level 1 “AAA” Alkaline Batteries 3 Instruction Manual 1 Carrying Case 1

2. Features and Functions

• LCD can rotate 180º

• 5 construction languages - units of measure (degrees, percent, mm/m, in/ft in decimal, in/ft in fractional)

• Self-calibrated

• 0º to 10º and 80º to 90º-position of inclination is confirmed by a signal tone

• Numbers invert for working overhead

• Reference function making any slope “0.0”

• Hold function locks measurement on the LCD

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3. Location of Part/Components

Handwheel

Display Window

Operation Buttons

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4. Operating Instructions

IMPORTANT: It is the responsibility of the user to verify the

calibration of the instrument before each use.

Battery Installation

1. Turn the electronic module off while taking out the old batteries

from the battery case.

2. Open the battery cap, remove the old batteries and put in new

ones.

3. Turn on the unit to see if all functions are correct.

Note:

1. Be careful to follow the polarity symbol when replacing the

batteries.

Take out the batteries if the electronic module is not going to

be used for a long time.

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5. Using the Product

Key Guide

Zero Calibration/ Reference

Mode

Sound/

Illumination

Hold

Power

Power Key

Turn on/off the electronic module. The electronic module will beep twice when turned on and beep once when turned off.

Hold Key

Pressing this key will lock the current angle reading displayed on the LCD.

At this time the measurement that you are measuring stays on your LCD. The arrows on each side of the digital readout blink in this function to remind you that you are in the HOLD function.

Sound and LCD Illumination Key

Press this key once to turn on/off the sound function. The electronic module will beep once. When sound function is on you will see the horn symbol on the LCD.

The level will not beep if the instrument is at 10º or more. The level will beep faster as you move closer to 0.0º. A solid tone will sound when level is at 0.0º or 90%. Press and hold this key for 3 seconds to turn on/off the LCD back light.

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Mode Key

Push the MODE button to switch from one dimension to another. This controls which dimension your electronic module will measure in. Your level has the capability to measure in Degrees, Percentage of slope, Millimeters per Meter, Inches per Foot (Slope, Pitch) in decimal form and Inches per Foot in fractions of an inch. A symbol on the upper right of the screen will explain which MODE you are currently in.

Zero Calibration Key

Please refer to Section 6 “Self-check and calibration”.

Auto Shut-off

The electronic module will automatically shut-off in 15-20 minutes if no key is pressed.

Low Battery Indicator

When the battery voltage is lo

w, the battery symbol will flash in the

LCD, the battery will need to be replaced.

Battery Symbol

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Inclination Indication

The triangle arrows displayed on the two ends of the LCD indicate the inclination direction of the digital level.

When the digital level is at the position of 0 degree, the two arrows will show as follows:

Rotating Display

The LCD of the instrument can rotate 180 degrees.

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6. Self-Check and Calibration

IMPORTANT: It is the responsibility of the user to verify the

calibration of the instrument before each use.

Checking the Horizontal Calibration

Select a flat and horizontal platform as a reference

like a table-surface.

surface,

1. Place the digital level on this reference surface, as shown in figure 1, and then record the measured angle reading. Record this as A1.

2. Turn the digital level 180 degrees, as shown in figure 2, and then record the measured angle reading. Record this as A2.

3. If A1-A2 is greater than .2º, it is necessary to calibrate the horizontal accuracy.

Checking the Vertical Calibration

Select a flat and vertical pla surface.

1. Place the digital level on this reference surface, as shown in figure 3, and then record the measured angle reading. Record this as A1.

2. Turn the digital level 180 degrees, as shown in figure 4, and then record the measured angle reading. Record this as A2.

3. If A1-A2 is greater than .2º, it is necessary to calibrate the vertical accuracy.

tform as a reference

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Horizontal Calibration

1. Press and hold the CAL/REF key for 3-plus seconds, unit will beep once. When the LCD shows -0-, the digital level has entered the calibration mode.

2. Place the digital level on the horizontal reference surface, as shown in figure 5, after 10 seconds, press the CAL/REF again, and the LCD shows -1-.

3. Turn the digital level 180 degrees, as shown in figure 6, and after 10 seconds, press the CAL/REF key again, and the LCD shows -2-. Wait for 2 seconds, and the digital level will show the angle reading. The horizontal calibration is now completed.

Vertical Calibration

1. Press and hold the CAL/REF key for 3-plus seconds, unit will beep once.

When the LCD shows -0-, the

digital level has entered the calibration mode.

2. Place the digital level on the vertical reference surface, as shown in figure 7, after 10 seconds, press the CAL/REF again, and the LCD shows -1-.

3. Turn the digital level 180 degrees, as shown in figure 8, and after 10 seconds, press the CAL/REF key again, and the LCD shows -2-. Wait for 2 seconds, and the digital level will show the angle reading. The vertical calibration is now completed.

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7. Technical Specifications

Range of Angle Measurement 360º, Display ± 90º

Definition Rate 0.1º

Accuracy ± 0.1º for 0º and 90º

± 0.2º for other angles

Power Supply 3 “AAA” alkaline batteries

Battery Life Approx. battery life 60 hours

continuous use

Working Temperature 14°F to 113°F (-10°C to +45°C)

8. Care and Handling

• This unit is a precision tool that must be handled with care.

• Avoid exposing unit to shock vibrations and extreme temperatures.

• Before moving or transporting the unit, make sure that the unit

is turned off.

• Remove the batteries when storing the unit for an extended time

(more than three months) to avoid damage to the unit should the batteries deteriorate.

• Always store the unit in its case when not in use.

• Avoid getting the unit wet.

• Keep the unit dry and clean. Remove any moisture or dirt with a

soft, dry cloth.

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Do not use harsh chemicals, strong detergents or cleaning solvents

•

to clean the unit.

9. Product Warranty

Johnson Level & Tool offers a one year limited warranty on each its products. You can obtain a copy of the limited warranty for a Johnson Level & Tool product by contacting Johnson Level & Tool's Customer Service Department as provided below or by visiting us online at www.johnsonlevel.com. The limited warranty for each product contains various limitations and exclusions.

NOTE: The user is responsible for the proper use and care of the product.

It is the responsibility of the user to verify the calibra instrument before each use.

For further assistance, or if you experience problems with this product that are not addressed in this instruction manual, please contact our Customer Service Department.

In the U.S., contact Johnson Level & Tool’s Customer Service Department at 800-563-8553.

In Canada, contact Johnson Level & Tool’s Customer Service Department at 800-346-6682.

tion of the

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Johnson Level 40-6048 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual