HEIDENHAIN ND 2100G - Manual (Page 104)

104 2 Installation and Specifications
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p Specifying units of measure
The Units field is used to specify channel input units of measure.
Displacement units of measure can be inches, millimeters, angular or
numeric. Thermocouple units of measure can be Celsius, Fahrenheit
or numeric.
To specify the units of measure:
U Press the LIST soft key. This displays a list of units of measure.
U Highlight the desired unit of measure
U Press the ENTER key to select the unit
U Press the ENTER key to advance to the next parameter
Reversing channel input polarity
The Reversed field is used to reverse the direction of all specified
channel input counts, and will reverse the polarity of serial inputs.
Normally, displacement counts increase as the device is compressed
or rotated clockwise. Serial input polarity can be reversed to suit the
requirements of the application.
To reverse channel input polarity:
U Highlight the Reversed field
U Press the YES soft key
U Press the ENTER key