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GSM19 Series Magnetometers - Version 7
GEM Systems, Inc. Advanced Magnetometers
For more technical information, visit www.gemsys.ca
NOTE:
Depending on the survey mode, some files (like mobile and slow grad) are
reviewed from the last reading to the first. Some others (like base and walk
modes) are reviewed from the first to the last.
7.3 DATA RECALL IN GRAPH MODE
After selecting graph mode, you are prompted to set the increment (or the scroll jump) to use while
reviewing along the graph. Allowed increment values are 1 to 180. An increment of 1 represents
120 points of the graph (equals half a screen).
For example, with an increment of 1, the left half of the graph becomes the right half, and new data
is plotted on the left side. You is displaying half of the data already viewed on the right side of the
screen.
With an increment of 2, the last point at the left of the graph becomes the first point at the right and
a full new screen is plotted.
To recall data in text mode, start from Screen 75 above. Toggle to graph mode and then set the
increment using the screen below:
SCREEN 80
1
incr
F-ok C-change
Press
C-change
to set the increment and
F-ok
when ready
On survey modes other than base, you are prompted to select the value to graph. Depending on the
mode the options may be:
•
uncorrected field (normally lower channel)
•
corrected field (data available only after Mag-to-Mag diurnal correction)
•
grad (for grad or walkgrad modes)