100 MM GRAPHICS RECORDER: USER GUIDE
User Guide
Page 45
HA027271
Issue 12 Mar 04
4.3.2 GROUP CONFIGURATION (Cont.)
TREND SPEED/TREND INTERVAL
Allows the 'chart' speed to be selected either as mm or in per hour, or as an interval. Entering a value in one field
automatically converts the value in the other field. A trend interval of N seconds is equivalent to 1200/N mm/hr chart
speed; a chart speed of P mm/hr is equivalent to a trend interval of 1200/P seconds.
If A/B switching is enabled, a second Trend Speed /Interval value can be entered. Trend Speed/Interval 'A' is used
during normal operation. Trend Speed/Interval 'B' is switched to by job action, as described in
GRID TYPE
Grid type allows the chart grid type to be defined for the group being configured. This is not necessarily related to
channel scale (
), 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 defined by the fields Grid Divisions - Major and Minor,
which appear if 'Linear' is selected as grid type.
Figure 4.3.2b, below, defines major and minor divisions.
LOG
This menu item appears only if the Log Scales option is fitted.
The chart grid is logarithmic, with the number of decades being selected in the 'Grid Decades' field which appears if
'Log' is selected as Grid Type. Figure 4.3.2b gives an example.
FROM POINT
This allows the chart grid to be aligned with the scale of a particular 'pont', selected in the 'from' field which appears if
'From Point' is selected as 'Grid Type'
Figure 4.3.2b Chart grid definitions
Five major divisions
Two minor divisions
Nine major divisions
Three minor divisions
Three decades
Linear scale
Linear scale
Log scale (option)
