100/180 mm PAPERLESS GRAPHIC RECORDER: USER GUIDE
HA028910
Issue 13 Sep 16
User Guide
Page 68
4.3.2 GROUP CONFIGURATION (Cont.)
CIRCULAR EXTENDED BACKFILL
When checked, this checkbox enables the Circular Extended Backfi ll function, which extends the chart
backfi ll to display chart data for multiple power cycles instead of only from the previous power up.
GRID TYPE
Grid type allows the chart grid type to be defi ned for the group being confi gured. This is not necessarily
related to channel scale (
section 4.3.3
), unless ‘From point’ is selected, when the grid matches the scale
of the selected point.
NONE
No chart grid is traced.
LINEAR
The chart grid is linear, with the major and minor divisions defi ned by the fi elds Grid Divisions - Major and
Minor, which appear if ‘Linear’ is selected as grid type. Figure 4.3.2c, below, defi nes major and minor
divisions.
LOG
The chart grid is logarithmic, with the number of decades being selected in the ‘Grid Decades’ fi eld
which appears if ‘Log’ is selected as Grid Type. Figure 4.3.2c gives an example.
Note: For the small frame recorder, the minor divisions within each decade are shown only for
groups with ‘Number of decades’ ≤ 5.
FROM POINT
This allows the chart grid to be aligned with the scale of a particular ‘point’, selected in the ‘from’ fi eld
which appears if ‘From Point’ is selected as ‘Grid Type’
Figure 4.3.2c Typical chart grid defi nitions
Five major divisions
Two minor divisions
Nine major divisions
Three minor divisions
Three decades
Linear scale
Linear scale
Log scale
