870i-English_Manuals 3/22/17 1:58 PM Page 1 24″ and 48″ Electronic Digital Level Model Nos. 1760-2400 & 1760-4800 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.
1870i-English_Manuals 3/22/17 1:58 PM Page 2 Table of Contents 1. Kit Contents 2. Features and Functions 3. Location of Parts/Components 4. Operating Instructions 5. 6. 7. 8. 9. Using the Product Calibration Technical Specifications Care and Handling Product Warranty 1. Kit Contents Description Model Nos. 1760-2400 & 1760-4800 Electronic Digital Level Instruction Manual Carrying Case Qty. 1 1 1 2.
1870i-English_Manuals 3/22/17 1:58 PM Page 3 3.
1870i-English_Manuals 3/22/17 1:58 PM Page 4 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.
1870i-English_Manuals 3/22/17 1:58 PM Page 5 5. Using the Product millimeters/ meter Symbol Key Guide Reference Symbol Sound Symbol Hold Symbol inch/feet Symbol Percent Symbol Degree Symbol Battery Symbol Hold Button Mode Button Direction Arrow Symbol On/Off Button Sound Button Calibrate Button LCD Backlight Reference Button Button ON/OFF Button Push this button once to turn on the digital level. Push this button again to turn the digital level off.
1870i-English_Manuals 3/22/17 1:58 PM Page 6 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.
1870i-English_Manuals 3/22/17 1:58 PM Page 7 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.
1870i-English_Manuals 3/22/17 1:58 PM Page 8 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” Reading An error reading on the LCD indicates the level is tipped too far forward or backward to display an accurate reading. Inclination Indication The left and right arrows are displayed to indicate the inclination direction of the digital level.
1870i-English_Manuals 3/22/17 1:58 PM Page 9 6. Calibration IMPORTANT: It is the responsibility of the user to verify the calibration of the instrument before each use. To Calibrate this unit: 1. Select a flat horizontal reference surface, like a table or countertop. It should be fairly level, but need not be perfectly level. Position the level in the horizontal position with the LCD facing you, as pictured on the cover of this manual. 2.
1870i-English_Manuals 3/22/17 1:58 PM Page 10 7. Technical Specifications Display Range Resolution Accuracy Power Supply Battery Life Working Temperature Dimensions Weight IP Rating 4 x 90º 0.1º, 0.1%, 1/8″, .125″, 1 mm/m ± 0.1º for 0º and 90º ± 0.2º for other angles 2 “AAA” alkaline batteries (not included) 100 hours 32°F to 122°F 24″ x 1″ x 2.4″ (1760-2400) 48″ x 1″ x 2.4″ (1760-4800) 1.19 lbs (1760-2400) 2.30 lbs (1760-4800) IP54 8.
1870i-English_Manuals 3/22/17 1:58 PM Page 11 9. Product Warranty Johnson Level & Tool offers a limited lifetime warranty on each of 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.
1870i-English_Manuals 3/22/17 1:58 PM Page 12 12 ©2017 Johnson Level & Tool
