Using 3D Guidance in the Field 5
Task When To learn how, see ...
Set GNSS accuracy
requirements
Every time you begin a new job
5.2.5 Setting GNSS
accuracy mode
Load a GNSS Geoid grid When the GNSS position is out of the
range of the loaded geoid grid
5.2.6 GNSS geoid grid
support
Initialize machine
orientation
Every time you change the location of
the machine
5.2.3 Initializing single-3D
excavator orientation
5.2.1 Benching a UTS target
You must bench the target if the UTS instrument was set up with Northing and
Easting values, but no Elevation was specified.
You may bench the target even if the UTS instrument’s location was specified with
an elevation value, in which case the benched elevation is used to calculate the
target location, not the entered elevation of the UTS.
The Height from field in the UTS dialog displays the origin of the UTS height. The
contents of the Height from field are shown below.
Height from
field Description
Benching The machine has been benched. Heights are in terms of the benchmark
the machine was benched over.
UTS The machine has not been benched. Heights are in terms of UTS height.
UTS setup has station elevation and instrument height entered.
No heights The machine has not been benched. No height information entered during
UTS set up.
If the Height from field displays “No heights”, you must bench the UTS target
before you can use the UTS system.
To bench the target:
1.
From any guidance screen, press and hold down \.
Note – Alternatively, to begin benching from the Setup Menu – Configuration
menu, select Bench.
GCS900 Grade Control System for Excavators Operator's Manual 109
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