Dakota Ultrasonics MINI--MAX - Manual (Page 174)

Dakota Ultrasonics
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Note: Refer to section 12.2 Display View, to toggle the view options.
5) The user may opt to clear a specific reading and save a new one at any
time. Press the CLR key in the appropriate cell location to clear the
reading, take a new measurement, and press the OK key to save the
new reading.
6) Abort the Group View Box by pressing the MEAS key at any time.