User`s manual

ProScale M150, M250 and all products with General Purpose LCD Digital Displays 25 of 44
ON/OFF
Momentarily pressing the ON/OFF key will cause the display to turn on or off. The
Firmware Version is displayed on power-up or when ON/OFF key is pressed. While on, if
no key presses or positional changes occur within 15 minutes, the Digital Display will
automatically turn itself off to conserve battery life. While off, if a position change is
detected (.05mm or .002in) or the ON/OFF button is pressed, the display will
automatically turn itself on with no loss of measurement information.
(Programming Parameter Pr8. Factory default set to 15 minutes.)
Battery voltage is displayed by pressing and holding the ON/OFF key for 5 seconds while
display is turned on.
CAUTION: Pressing and holding the ON/OFF and MODE key for 10
seconds while the display is turned off will perform a full segment LCD
test AND re-set all programming parameters to factory defaults
MODE
The digital display can show measurement information in Imperial or Metric. To change
the current display mode, momentarily press the MODE key. With each key press the
display will cycle through decimal inches, fractional inches (1/16), (1/32), (1/64) (If
enabled by Programming Parameter Pr6) and metric (mm or cm based on setting of
Programming Parameter Pr5).
When the display is in a decimal mode (mm, cm or in) it will auto-range to the next
resolution if the value is displayable in the next range. This allows the display to be used
with Mitutoyo Digimatic® products in inch mode or different resolutions other than 2
decimal places.
When the display is in 1/16 or 1/32 inch fraction mode, a series of “bars” in the upper
right corner of the LCD each represent an additional 1/64th of an inch measurement. ie.
When in 1/16 inch mode and three bars are showing, the measurement displayed is
rounded down to closest 1/16 inch and each illuminated bar indicates an additional 1/64
of an inch (“heavy”) measurement. For better resolution switch to 1/32 or 1/64 fraction
mode. For the best resolution switch to a decimal mode.
When the measurement is greater than + 99 63/64 inches, a +100 or +200 will show in
the upper right portion of the LCD to indicate this amount must be added to the displayed
reading. ie: if the measurement is 154 5/8 inches, 54 5/8 and +100 will be displayed on
the LCD. If the measurement is -307 23/64 inches - 7 23/64 , +100 and +200 will be
displayed on the LCD.
The Resolution of the display can be set for Normal; (.01mm or .001in), Reduced; (.1mm
or .01in) or Increased; (.01mm or .0005in) (Programming Parameter Pr4.)