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Terms
 
199 Memory Positions (DP900, C80)
Allows the operator to enter up to 199 (C80 - 99) pre-set positions into memory for quick recall.  Memory positions can be grouped under specific job numbers.
99 Tool Offsets (DP900, C80)
Store up to 99 tool lengths and offsets in non-volatile memory.  Simple prompts guide operators through tool setup and recall.  Multiple part runs become simple and consistently accurate.  Decrease scrap and increase accuracy when changing tools.
Absolute/Incremental (All)
In incremental mode the display is used to show each new position relative to the previous position (this is also know as point-to-point use).   In absolute mode the display will show the position relative to the original datum point (0,0).
Accuracy (General)
Accuracy is the maximum permissible deviation within a predetermined measuring range.  It is usually quoted as a +/- value or as TIR (total indicator reading).  Accuracy is usually related to length and is measured at a particular calibration temperature.
Arc Contouring (DP900, C80)
Calculates an arc or radius, eliminating the need for a rotary table when machining a rough arc.
Axis Summing (DP900, C80)
Combines the movements of any two selected axes (Available on a 3-axes display only).
Bolt Hole Calculator (DP900, C80)
Calculates up to 999 (C80 - 99) equally spaced holes around a complete or partial circle and guides operator to each hole location.
Digifind (All)
This feature is unique to Newall digital readout products.   Digifind eliminates the risk of losing your position when the display is switched off either intentionally or accidentally (i.e., a power failure).  When the display is powered on, it displays the position at power off (compensating for any movement of a Spherosyn scale up to 1/4" and a Microsyn scale up to 0.1" in either direction since the unit was last used).  If the machine has moved beyond 1/4" or 0.1", Digifind allows a quick means to find datum if lost.  The display will maintain the position for at least 30-days, the life of the battery back-up.
Line Hole Calculator (DP900, C80)
Calculates up to 999 (C80 - 99) equally spaced holes along a straight line of any angle and guides operator to each hole location.
Linear Error Compensation (All)
Allows the operator to apply a constant correction factor to all measurements displayed.  Linear error may occur if the axis of the machine is not running perfectly parallel to the scale (cosine error) or if the machine is moving in an arc (Abbé error).  Some causes may be: machine wear, deflection of the machine due to weight acting on an overhanging section, or misalignment of the scale due to poor installation.
Polar Coordinates (DP900, C80)
Enables operator to convert the displayed data from the conventional Cartesian coordinates (X,Y,Z) to Polar coordinates (length + angle) for any plane (XY, XZ, or YZ).  When the axes are moved, the display shows the length of the vector and the angle of the coordinates in decimal form.  Example: diagram showing both Cartesian and Polar plot.
polar.JPG (35399 bytes)
Segmented Error Compensation (All)
Allows the operator to break down the scale travel into a number of user-defined segments.  The operator can, in each segment, set its own correction factor.
Linear error may occur if the axis of the machine is not running perfectly parallel to the scale (cosine error) or if the machine is moving in an arc (Abbé error).  Some causes may be: machine wear, deflection of the machine due to weight acting on an overhanging section, or misalignment of the scale due to poor installation.
Sleep Mode (Data Hold) (All)
Allows the operator to disable the display/keypad but retain power to the scales and memory circuits.  You can use data hold to prevent unauthorized or accidental use whilst unattended.
Switchable Resolutions (All)
Resolution is the smallest increment that can be obtained or distinguished on the digital readout unit.  It is possible to have a highly accurate scale reading through a display unit with low resolution.  In this case, the benefits of the scale are obviously eliminated by the display unit.  Conversely, a display unit capable of obtaining high a resolution readout does not necessarily mean that the scales are able to measure with the same accuracy.  Beware of the tendency within the industry to quote the resolution of the display as the accuracy of the scales.  Display resolution may be switched depending on which scales are used: Spherosyn/Microsyn 10 scale: 0.002"/0.001"/0.0005"/0.0002"; Microsyn 5 scale: 0.0005"/0.0002"/0.0001"/0.00005".
Taper Calculations (DP900, C80)
Interactive message screen displays angle of X,Z movement so that a taper can be cut without the use of a mechanical taper attachment.
Vectoring (DP900, C80)
After entering the angle of the compound, the unit will display true X,Z position of the tool when the compound is moved (Available on a 3-axes display only)
Zero Approach Warning (All except A50)
The leftmost character of the axis display flashes when the machine position is within the predefined envelope.  The flash rate increases as zero is approached.
 
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