- 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.
- 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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