Measurement Definitions

Accuracy

The accuracy of a measurement system is the degree of closeness of measurements of some quantity to its actual (or true) value.
(
© Wikipedia®)

Repeatability

The precision of a measurement system, also called reproducibility or repeatability, is the degree to which repeated measurements under unchanged conditions show the same result.  (© Wikipedia®)

 

Inches:

 

Choose either hundredths or thousandths of an inch by setting a switch inside the digital readout.  The reading increments by 1 unit in either mode.  For example, when set to thousandths mode, moving away from the blade will display 0.001, 0.002, 0.003, 0.004, 0.005, etc.

 

Millimeters:

Choose either tenths or hundredths of a millimeter by setting a switch inside the digital readout.  The reading increments by 1 unit in either mode.  For example, when set to hundredths mode, moving away from the blade will display 0.01, 0.02, 0.03, 0.04, 0.05, etc.

 

Fractions:

Choose 16ths, 32nds, or 64ths. The digital readout automatically reduces fractional readouts to 4ths, 8ths, etc, in each mode.  Additionally, bars appear in the upper right corner to show extra 64ths when in 16ths or 32nds mode. For example, when set to 16ths mode at 19/64", the digital readout will show 1/4" and three bars appear in the upper right corner, each indicating an additional 1/64" distance.  In 32nds mode, the readout will show 9/32" and one bar appears in the upper right corner.  In 64ths mode, the readout will show 19/64.  This allows you to continue using the units you're familiar with, without making mistakes.  It also speeds up cutting parts 'heavy' or 'long' when intended.

NOTE: Fractions only appear when a particular dimension is reached.  For example, you must actually reach 0.500 for the readout to show 1/2" in fractions mode.  This prevents cutting parts too small -- especially important in work where parts stack or build together.

Absolute Measure:

Absolute measure is the distance from a fixed position.  On a table saw, this is typically the distance from the right edge of table saw blade.  For the best accuracy, this is the distance from the right edge of the running blade - accounting for any variance of blade flatness, or bearing run-out. The absolute distance can be set to zero, or to any other offset, quickly and easily using the keypad.  The absolute distance is retained when the readout is turned off.

Incremental Measure:

Incremental measure is the distance from a primary position.  On a table saw, this could be the distance to the edge of an inverted router bit.  It could also be the distance from the left edge of the saw blade.  It can even be used to account for the blade's kerf when making repeating cuts (where the strips cut to the left of the blade need to be the same width). The incremental distance can be set to zero, or to any other offset, quickly and easily using the keypad.  Changing between Absolute and Incremental modes is easily done by pressing a single key.  The incremental distance is retained when the display's power is off.

 

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