User`s manual

ProScale M150, M250 and all products with General Purpose LCD Digital Displays 30 of 44
MONitor
The Digital Display has the ability to monitor a position to detect position drift or
measurement variance. To activate the monitoring mode, position the readhead to the
desired location and momentarily press the MON key. The MON symbol will flash on the
display to indicate that the position monitor mode is active.
If the readhead moves outside the programmed tolerance the displayed reading flashes,
indicating a drift condition. When the readhead is moved back within the programmed
tolerance, the displayed reading will stop flashing.
To exit the monitor mode, momentarily press the MON key. The MON symbol will stop
flashing and the currently displayed position will also stop flashing.
NOTE: Position monitor mode can only be activated while in the ABS measuring mode.
If the ABS/INC key is depressed while monitoring, the position-monitoring mode is
automatically exited.
The display can be programmed to automatically enter or exit the MONitor mode based
on elapsed time or movement of the encoder.
If the programmable auto monitor is enabled (Programming parameter Pr19 set to 1), the
Digital Display will automatically enter monitor mode after either 30 or 60 seconds of no
encoder motion. If the programmable auto monitor is disabled, the ProScale will
automatically exit monitor mode if the encoder is moved beyond a programmable
distance from the monitored position. This option, in conjunction with auto monitor
activation, allows the ProScale to be kept in monitor mode without manually pressing the
monitor key.
(See Programming Parameters 19,20, 21. Factory default is OFF.)
SEND
The Digital Display provides an output port that can be used to send measurement
information to a compatible SPC device such as a printer or data acquisition unit. After
connecting the SPC device to the 10 pin connector on the display, the user may initiate
the data transmission by momentarily pressing the SEND key. This signals the SPC
device to acquire the data from the digital display.
Pressing the SEND key displays “ Snd ” on the display for 1 second to show activation of
the send function (even if no SPC device is attached to the ProScale).
The data format and connector style of the ProScale SPC output is the same as Mitutoyo
SPC. This is an industry standard that can be interfaced with most available SPC
products including multiplexers, RS232 converters and PC plug-in boards. Data from the
ProScale is sent to the SPC connector in either millimeters or decimal inches, whichever
is currently displayed on the LCD.
If no SPC device is attached to the display, the SEND key has no other function.
See Section 6 Accessories for interface and data acquisition products descriptions.
F1 / F2
These keys are used for special features and/or Custom programming functions.