Johnson 1880-2400 Manuale utente

24" and 48" Waterproof Electronic

Digital Level

Model Nos. 1880-2400 & 1880-4800

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.

7640H-English_Manuals 12/11/13 4:18 PM Page 1

Table of Contents

1. it Contents

2. Features and Functions

3. Location of Parts/Components

4. Operating Instructions

5. Using the Product

6. Self-Calibration

7. Technical Specifications

8. Care and Handling

9. Product Warranty

1. Kit Contents

Description Model Nos. 1880-2400 & 1880-4800 Qty.

Electronic Digital Level 1

Instruction Manual 1

Carrying Case 1

2. Features and Functions

• IP 65 dust and waterproof

• Extremely accurate with 0.05º at 0º and 90º

• Angle inclination in 5 construction languages - units of measure

(degrees, percent, in/ft (fractional), in/ft(decimal), mm/m)

• Self-calibrate

• Automatic digit inversion for overhead measurements

• Reference function making any slope “0.0”

• Hold function locks measurement on the LCD

• Working range on angle measurement 4 x 90º

• SurroundView®vials reflect ambient light for easy-read

7640H-English_Manuals 12/11/13 4:18 PM Page 2

• Two vials read plumb and level

• Bright LCD backlight

• Audible and visual plumb and level indicators

• Shock absorbing end-caps

• Large hand grips fastened with screws

• Rigid aluminum box frame profile

3. Location of Part/Components

LCD Display

Window

eypad

Hand Hole

End-cap

Plumb Vial

Level Vial

End-cap

7640H-English_Manuals 12/11/13 4:18 PM Page 3

4. Operating Instructions

Battery Installation

1. Turn the digital level off.

2. Open the battery panel by removing the battery panel screw.

3. Remove the old batteries and put in new ones.

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

Note:

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

batteries.

2. Take out the batteries if the digital level is not going to be used

for a long time.

IMPO TANT: It is the responsibility of the user to verify the

calibration of the instrument before each use.

Battery Panel Screw

7640H-English_Manuals 12/11/13 4:18 PM Page 4

5. Using the Product

Key Guide

ON/OFF Button

Push this button once to turn on the digital level. Push this button

again to turn the digital level off.

ES Button

Push this button once to switch the resolution of the digital level from

0.05º to 0.1º.

Mode Button

Push this button once to switch from one unit of measure to another.

This controls which unit of measure your digital level will measure in.

Your level has the capability to measure in degrees, percentage of

Direction

Arrow Symbol

On/Off Button

Mode Button

Sound Button Reference

Button

Hold

Button

Calibrate Button

LCD Backlight

Button

Sound Symbol Hold Symbol

Percent Symbol

Reference Symbol

Degree Symbol

Battery Symbol

RES Button

inch/feet

Symbol

millimeters/

meter Symbol

7640H-English_Manuals 12/11/13 4:18 PM Page 5

slope, inches/feet in fractions, inches/feet in decimal and millimeters/

meters. A symbol at the top of the LCD will show which unit of

measure you are currently in.

Push and hold this button in for 3 seconds and then release to enter

the automatic shut off mode (5 minutes or 2 hours). When the button

is held in for 3 seconds and released the LCD will show a “5”

blinking 3 times and then return to the regular display, the automatic

shut off is now set to 5 minutes. When the button is held in for

another 3 seconds and released the LCD will show a “2H” blinking

3 times and then return to the regular display, the battery symbol will

be displayed as a reminder that the digital level is now set for 2

hours. The default setting is for automatic shut off in 5 minutes.

NOTE: When the battery is low (less than 5%) the digital level will

default to 5 minute automatic shut off, the battery symbol will begin

to flash and there will be no response to pushing this button in for

3 seconds.

eference Button

Push this button once to enter Reference Mode. The reference

function allows for setting any angle or slope to “0.0”. This is very

useful for measuring the same slope continuously during a project

or finding the difference between two slopes. To set the reference

function, position the level at the desired angle you wish to measure.

Press and release the reference button. REF will appear on the

screen while in the reference mode and the numbers will go to 0.0.

Set the level on the second surface to measure the difference

between the first and second surface. To exit this reference mode,

press the reference button again.

7640H-English_Manuals 12/11/13 4:18 PM Page 6

Hold Button

Push this button once to enter hold mode. Pressing this button once

will lock the current angle reading displayed on the LCD. The word

HOLD will appear at the top of the display to remind you that you are in

the HOLD function. Press this button once again to exit the hold mode.

Sound Button

Push this button once to enter the sound function mode. The sound symbol

will appear on the LCD and there will be 4 different types of sound.

1. Between 10° - 5° or 80°- 85° there is a slow beep

2. Between 4.9° - 1° or 85.1° - 89° there is a faster beep

3. Between 0.9° - 0.1° or 89.1° - 89.9° there is a rapid beep

4. 0° and 90° there is a continuous sound

Press this button again to exit the sound mode.

The sound will turn off after 20 seconds of non-movement of the

digital level. The sound will return when the digital level is moved.

Backlight Button

Push this button once to turn on the backlight function. The LCD

backlight will stay on for approximately 30 seconds with no movement

of the level. Any push of a button or movement of the level will turn the

backlight back on. To exit the backlight function, push this button again.

Calibrate Button

Push this button to enter calibration mode. See Calibration section for

more information on how to calibrate this digital level.

7640H-English_Manuals 12/11/13 4:18 PM Page 7

Inclination Indication

The left and right arrows are displayed to indicate the inclination

direction of the digital level.

When the digital level is at the position of 0 degree, the horizontal

reference line will show as follows:

Auto Shut-Off

The digital level will automatically shut-off in 5 minutes if no key is

pressed.

NOTE: This can be changed to a 2 hour automatic shut-off, please

see MODE function.

“Erro” eading

An error reading on the LCD indicates the level is tipped too far

forward or backward to display an accurate reading.

7640H-English_Manuals 12/11/13 4:18 PM Page 8

6. Self-Calibration

To Calibrate this unit:

Quick Level Calibration

1. Turn the digital level on.

2. Hold the digital level against a wall making sure the level

bubble is centered in the vial.

3. While keeping the digital level in the level position push and

hold the CAL button in for 3 seconds.

4. “CAL” will flash on the LCD indicating the digital level is in the

calibration process.

5. If the digital level is not kept stable or if the digital level is

tipped to far forward or backward, “ERRO” will appear on the

LCD. Push the Calibration Button one time to exit calibration

mode and repeat the procedure.

6. If the calibration procedure is successful, the LCD will display

“rdy”. The calibration procedure is completed and the digital

level will exit the calibration procedure automatically.

Quick Plumb Calibration

1. Turn the digital level on.

2. Hold the digital level against a wall making sure the plumb

bubble is centered in the vial.

3. While keeping the digital level in the plumb position push and

hold the CAL button in for 3 seconds.

IMPO TANT: It is the responsibility of the user to verify the

calibration of the instrument before each use.

7640H-English_Manuals 12/11/13 4:18 PM Page 9

4. “CAL” will flash on the LCD indicating the digital level is in the

calibration process.

5. If the digital level is not kept stable or if the digital level is

tipped to far forward or backward, “ERRO” will appear on the

LCD. Push the Calibration Button one time to exit calibration

mode and repeat the procedure.

6. If the calibration procedure is successful, the LCD will display

“rdy”. The calibration procedure is completed and the digital

level will exit the calibration procedure automatically.

Calibration

1. Select a flat horizontal platform as a reference surface, like a

table surface.

2. With the digital level turned on, push the MODE button and

CAL button at the same time for 3 seconds the release.

3. The LCD will show “CAL1” indicating the digital level has

entered the calibration process.

4. Push the CAL button one time and the LCD will show a

flashing “CAL1”.

5. The LCD will then show a solid “CAL2”.

6. Rotate the level 180° putting it in the same position as it

was before.

7. Push the CAL button one time. The LCD will display a

flashing “CAL2”.

8. When the digital level is calibrated it will exit calibration

mode automatically.

7640H-English_Manuals 12/11/13 4:18 PM Page 10

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