User`s manual

ProScale M150, M250 with LCD Digital Displays Page 33 of 48
Primary Key Functions
ON/OFF
Momentarily pressing the ON/OFF key will cause the Display to turn on or off.
The Firmware Version is momentarily displayed on power-up. While on, if no
key presses or positional changes occur within 15 minutes*, the Display will
automatically turn itself off to conserve battery life. While off, if a position
change is detected (larger than .05mm or .002in), the Display will
automatically turn itself on with no loss of measurement information.
*(Programming Parameter Pr8)
Pressing and holding the ON/OFF key for 5 seconds while the Display is
turned on will display internal battery voltage.
MODE
The ProScale can display measurement information in Inch or Metric. To
change the 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) and metric (mm or cm based on setting of Programming
Parameter Pr5). * If enabled by Programming Parameter Pr6.
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 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.)