Spectra Precision Survey Pro v4.5 Recon and Nomad Reference Manual - Manual (Page 45)

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Note: When editing an existing instrument profile, you cannot modify
the instrument brand or model.
Create New Instrument : opens the next Instrument Settings screen
where you can configure the settings for a new instrument and create
a new instrument profile.
Activate : activates the selected instrument profile.
GeoLock : opens the GeoLock Settings screen (Page R-165).
Delete : deletes the selected instrument profile.
Import : imports an instrument profile from an instrument profile
file that was previously loaded on the data collector.
Export : saves the selected instrument profile to a file, which can
then be transferred to another data collector and then imported.
Warning: Performing a hard reset on the data collector will result in
all the user-created instrument profiles to be deleted. It is
recommended that all instrument profiles be exported to files so in
the event of a hard reset they can be recovered using the Import
routine.