HEIDENHAIN ND 1100 - Manual (Page 10)

Introduction
ii
Conventions
Basic terms
Measurement polarity
Measurement resolution in
the guide
Chapter 4: System setup
System configuration instructions for technically qualified su-
pervisors and dealer representatives
Chapter 5: Options
Descriptions of QC100 series options
The terms Quadra-Chek 100 Quadra-Chek 100 Quadra-Chek 100 Quadra-Chek 100 Quadra-Chek 100, QC100 QC100 QC100 QC100 QC100 and system system system system system used in this guide
refer to the Quadra-Chek 100 digital readout. The term compara- compara- compara- compara- compara-
tor tor tor tor tor is used to refer to any device intended to measure parts in 2
dimensions. The term crosshairs
crosshairs crosshairs crosshairs crosshairs is used to refer to the targeting
portion of measuring machines.
It is assumed in all discussions of measurements that:
• Moving crosshairs to the right • Moving crosshairs to the right • Moving crosshairs to the right • Moving crosshairs to the right • Moving crosshairs to the right causes measure counts to
increase in a positive direction positive direction positive direction positive direction positive direction; 1 to 2 to 3 and so on.
• Moving crosshairs up • Moving crosshairs up • Moving crosshairs up • Moving crosshairs up • Moving crosshairs up causes measure counts to increase in a
positive direction positive direction positive direction positive direction positive direction; 1 to 2 to 3 and so on.
• Rotating crosshairs counterclockwise • Rotating crosshairs counterclockwise • Rotating crosshairs counterclockwise • Rotating crosshairs counterclockwise • Rotating crosshairs counterclockwise causes measure counts
to increase in a positive direction positive direction positive direction positive direction positive direction; 1 degree to 2 degrees to
3 degrees and so on.
• • • • • This count direction can easily be reversed if necessary.
Reversing the count direction is discussed later in Chapter 4:
System Setup.
In most cases the display resolution shown on screens in this guide
will be one ten-thousandths of an inch (0.0001) or two microns
metric (0.002). The display resolutions shown in this manual are
not meant to suggest resolutions that should be set on your sys-
tem for the instrument being used, they are only examples.