Spectra Precision Survey Pro v5.3 - Manual (Page 29)

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NOTE: In surveying, the term "automatic level" refers to a level that can be
accurately plumbed without having to be accurately leveled.
All levels built in the last 40 years or so have been automatic levels. They are
automatic because the prism through which the light rays pass is suspended by a
pendulum. Therefore, as long as the instrument is close to level (which can be
achieved ± 60" using a bubble level), the pendulum mechanism ensures that the
light rays are always passing through perpendicular to actual gravity, and they are
very accurate.
This means that a digital instrument such as the Trimble Zeiss Dini level is called a
digital automatic level, and a non-digital instrument, such as the Nikon AL2s, is also
an automatic level.
• In the section above the Manage Instruments button is a list of all
instruments that have been added to Survey Pro for the currently selected
mode. The current active instrument is indicated with a check mark. An
additional option is available (“Manual Mode” for optical and leveling;
“Demo Mode” for GNSS) allowing you to use Survey Pro standalone.
In optical, you choose “Manual Mode” to manually enter horizontal angle,
vertical angle, and slope distance any time Survey Pro is triggered to take
an observation. This is useful for training and learning the software, and it
can also be used to enter survey measurement data into a job from written
field notes.
In GNSS, you can choose “Demo Mode” for demonstration and training
purposes only. The “Demo Mode” has no use for handling actual survey
measurements.
In leveling, you must choose “Manual Mode” if you wish to do single-wire
or three-wire leveling from rod readings.
The ”Manual Mode” and “Demo Mode” profiles cannot be deleted or
renamed.
In summary, tapping the Instrument icon allows you to:
• Select Optical, GNSS or Leveling mode
• Quickly activate an instrument for use in the selected operating mode
• Quickly access the Instrument Settings screen
• Add a new instrument supported in the selected operating mode.
Optical Mode -
Connecting Survey
Pro to an Optical
Instrument
• Tap the Instrument icon and select Switch to Optical
• Tap the Instrument icon and select Manage Instruments. This opens the
Settings screen listing all the current instrument profiles.