Grizzly H8131 Bedienungsanleitung
MODEL H8131
DIGITAL LEVEL BOX
INSTRUCTIONS
COPYRIGHT © APRIL, 2007 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#TR9206 PRINTED IN CHINA
Specifications
Angle Range ...................................180° to -180°
Resolution ......................................................0.1°
Repeatability ...............................................± 0.1°
Size .................................................2" x 2" x 1.3"
Basic Operations
ON/OFF: Turns the digital display ON and OFF.
The digital display will automatically shut off in 5
minutes if it is not manually turned OFF.
HOLD: Freezes the digital display.
ABS/ZERO: When pushed quickly, toggles the
digital display back-and-forth between the "ABS"
(absolute) mode and a relative display, which
zeros the current position of the box.
When pushed and held down for five seconds
in the "ABS" mode, the ABS/ZERO button cali-
brates the accuracy of the digital level.
DIGITAL ARROWS: The arrows on the digital
display indicate which direction the right side of
the box needs to be elevated to reach level.
Zeroing Relative Angles
Being able to zero the box is useful when setting
up machinery, because you can use any angle
as a starting point to indicate how much you've
moved a component during adjustments without
adding/subtracting angles from each other.
Example—If you need to drill holes at 15° with
your drill press: 1) Stick the magnetic bottom of
the box to a piece of round stock in the drill chuck.
2) Rotate the angle of the headstock until the
digital display reads 90°. 3) Push the ABS/ZERO
button to zero the digital display. 4) Now rotate the
headstock until the digital display reads 15°.
ABS
Figure 1. Model H8131.
ABS
Figure 2. Buttons.
Note: Complete calibration instructions are on
the back of this sheet. To ensure accurate results
from your level box, calibrate your level box before
putting it into regular operation.
If you need help with this item, call our Tech
Support at: (570) 546-9663.
-2- H8131 Digital Level Box
Calibration
The digital level box can be easily calibrated by
leveling the box with the liquid vial, then pressing
and holding the ABS/ZERO button while the dis-
play is in the "ABS" mode.
To calibrate the level box:
1. Place the level box on a flat surface and see
which way the surface slopes by looking at
the bubble position (see Figure 3).
ABS
Figure 3. Determining which way the calibration
surface slopes.
Figure 6. Battery replacement.
Battery Change
Battery Type Required ......................... CR2032
To change the battery, rotate the round cover on
the back of the digital level box counterclockwise.
After twisting the cover, lightly tap the back of the
box on your hand to get the cover off. Pry the bat-
tery out and replace it, as shown in Figure 6.
Note: Removing the battery resets the calibration
of the digital display.
2. Place a thin item (wood, paper, metal, etc.)
between the low side of the box and the sur-
face to act as a shim (Figure 4).
ABS
Figure 4. Shimming the low side of the box.
3. Adjust the shim until the air bubble is cen-
tered in the liquid vial (Figure 5). If you can-
not get the bubble centered, use a different
shim thickness.
ABS
Figure 5. Bubble is centered, indicating that the
box is level.
4. Carefully push and hold the ABS/ZERO but-
ton for five seconds until the digital display
shows all zeros. (Be careful not to move the
level box when pushing the button.)
5. Repeat Step 3 to verify that the digital display
is accurate when the bubble is centered.
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