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Maxuum III Digital Electronic Indicator 2239028 Rev D
reading from full scale MIN to the MAX value. Use the RESET
button to clear the displayed Maximum value and start a new
Max measurement.
4.2.2.3 Total Indicated Reading
Displays the Total Indicated Reading (MAX-MIN)
Pressing the TIR button selects Total Indicated Reading. Both
tolerance limit arrows will be on and the fan reads the MAX to
MIN travel. Use the reset button to clear the displayed TIR value
and start a new TIR measurement. When TIR is reset it starts
from the center zero reading on the indicator. The analog fan
displays the min and max points and the digital value will be
the total indicated reading of maximum minus minimum.
4.2.2.4 Hold / Update
Freezes and unfreezes the live display reading.
In the Enhanced Mode, this pushbutton toggles between HOLD
and UPDATE. When in HOLD, the flashing segment in the FAN
Display stops blinking, but retains the last measurement; the
indicator does not update the reading. When pressed again,
thereby deactivating Hold, the indicator resumes operation.
When the Hold function is active, all other control buttons are
disabled.
4.2.2.5 Reset
Resets the Dynamic Function for its next measurement.
In the Dynamic Function, this button is used to reset the
Dynamic Measurement and sets the indicator to start the next
measurement. The displayed value becomes the Minimum and
Maximum values and the TIR becomes zero. In the Enhanced
Actual Mode and the Standard Mode, this button functions as a
zero button.
5.0 MAINTENANCE
5.1 Battery Signal
When the Low Battery Signal appears on the display (BAt), it
indicates that battery power is too low for dependable read-
ings. The indicator or indicating unit display continues to oper-
ate for a limited time (approximately a few hours). If used
continually during this warning period the unit eventually ceases
to display a reading and will only have the BAt indicated on it.
This feature assures that inaccurate readings do not occur due
to insufficient power.
Refer to section, ’6.0 Parts and Service’ on page 37 of this
instruction booklet for replacement battery part numbers and
ordering information.