7640H-English_Manuals 12/11/13 4:18 PM Page 1
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.
©2013 Johnson Level & Tool - Rev. 1 1
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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-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
2 ©2013 Johnson Level & Tool - Rev. 1
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• 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
End-cap
Window
End-cap
Plumb Vial
Hand Hole
©2013 Johnson Level & Tool - Rev. 1 3
Keypad
Level Vial
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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 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.
Battery Panel Screw
4 ©2013 Johnson Level & Tool - Rev. 1