Johnson 40-6060 User manual
©2007 Johnson Level & Tool
1
Electronic Level - Inclinometer
Model No. 40-6060
Instruction Manual
Congratulations on your choice of this Electronic Level - Inclinometer.
We suggest you read this instruction manual thoroughly before using
the instrument. Save this instruction manual for future use.
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©2007 Johnson Level & Tool
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 Qty.
“AAA” Alkaline Batteries 3
Carrying Case 1
2. Features and Functions
• Displays degree or percent inclination
• Small and handy
• Working range of angle measurement 4 x 90º
• 0º and 90º - position of inclination is confirmed by a signal tone
• Automatic digit inversion for overhead measurements
• Hold-function to freeze measurement
• Magnetic base
• 1/4” - 20 thread for connection to tripod
©2007 Johnson Level & Tool
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3. Location of Part/Components
LCD Display
Battery Compartment
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©2007 Johnson Level & Tool
4. Operating Instructions
Battery Installation
1. Make sure the instrument is turned off.
2. Turn the battery compartment cover screw counter-clockwise
to remove the cover. Remove the old batteries, and install the
new batteries.
3. Turn on the level to see if all functions are correct.
Note:
1. Be sure to match up polarities when replacing the batteries.
2. Always remove the batteries before storing the instrument.
IMPORTANT: It is the responsibility of the user to verify the
calibration of the instrument before each use.
©2007 Johnson Level & Tool
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5. Using the Product
Key Guide
There are four key-presses in this instrument, they are (from right
to left): power on/off key, switch from degree to percent, zero
calibration/horn key and the hold key.
Power On/Off Key
Power on and off the instrument by pressing this key.
Degree/Percent Key
This key will switch between degree and percent.
Zero Calibration/Horn Key
Periodic checking should be conducted to this instrument. If it
is out of alignment, recalibration will be necessary. This key is
used for calibration to absolute horizontal and absolute vertical of the
instrument. See the “Self-Check and Calibration” in section 6.
Horn Function
Push the Zero/Horn key once to turn on the horn (symbol should be
displayed). Push again to turn off. Horn will start a slow beep at 10º
or 17.5% and beep faster the closer you get to 0º or 0%. Once the
instrument hits 0º or 0%, you will get a steady tone.
Power
On/Off
Display
Hold Key Zero Key/
Horn Degree/Percent
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©2007 Johnson Level & Tool
Hold Key
Set the level in place and press this key to enter into the hold
status, record the current angle of the flashing display, the
displayed value will not change. Press this key again to release the
hold and the data will vary according to slope.
Automatic Shut-off
This instrument will shut-off automatically if no operation is received
within six minutes.
Low-power Indication
When voltage is low, battery symbol will flash in the left LCD as shown
below. When this is flashing, batteries need to be replaced.
The figure below shows the left side of the digital level needs to be
moved up to achieve level.
©2007 Johnson Level & Tool
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Shows that the digital level is level.
Shows the measurement of the slope.
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©2007 Johnson Level & Tool
6. Self-Check and Calibration
Horizontal Accuracy Check
1. Turn on the digital level and put it on a smooth and level surface as
shown in figure 1. Wait 10 second until the display digits are sta-
ble and record the degree value.
2. Rotate the digital level 180º in the same plane, see figure 2, wait 10
seconds until the display data is stable then record the second
degree value.
3. Turn over the digital level in the same plane, figure 3, wait 10
seconds and record the third degree value when it is stable.
4. Rotate the digital level 180º in the same plane, figure 4, wait 10
seconds and write down the fourth degree value when stable.
5. Of the four degree readings, if any two of the values have a differ-
ence over 0.1º, the unit must have a new Zero plumb recalibration.
Figure 1 Figure 3
Figure 2 Figure 4
IMPORTANT: It is the responsibility of the user to verify the
calibration of the instrument before each use.
©2007 Johnson Level & Tool
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Vertical Accuracy Check
1. Turn on the digital level and put it on a smooth and vertical plane as
shown in figure 5. Wait 10 seconds until the data reading is stable
and then record the angle degree.
2. Rotate the digital level 180º on the same plane, see figure 6, wait
10 seconds until the display data is stable then record the second
degree value.
3. Turn over the digital level in the same plane, figure 7, wait 10
seconds and record the third degree value when it is stable.
4. Rotate the digital level 180º in the same plane, figure 8, wait 10
seconds and write down the fourth degree value when stable.
5. Of the four degree readings, if any two of the values have a differ-
ence over 0.1º, the unit must have a new Zero plumb recalibration.
Horizontal Calibration
1. Turn on the instrument and put it on a smooth and horizontal sur-
face, figure 9. Press and hold in for 5 seconds the Zero Calibration
key, -0- will show on LCD display. Wait ten seconds then press
the Zero key again, the LCD will show -1-.
2. Rotate the digital level 180º on the same plane, figure 10, wait 10
seconds and press the Zero key until the LCD displays -2-.
Figure 5 Figure 6 Figure 7 Figure 8
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©2007 Johnson Level & Tool
3. Turn the unit over, still on the same plane making it upside down,
as in figure 11, then press the Zero key until the LCD displays -0-.
4. After 10 seconds, press the Zero key again until the LCD displays
-1-.
5. Turn the digital level 180º on the same plane, figure 12, wait 10
seconds, and press the Zero key again until the LCD displays -2-.
6. The horizontal calibration is complete.
Figure 9 Figure 10
Figure 11 Figure 12
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