100/180 mm PAPERLESS GRAPHIC RECORDER: USER GUIDE
HA028910
Issue 13 Sep 16
User Guide
Page 74
4.3.3 CHANNEL/ALARM CONFIGURATION (Cont.)
SCALE TYPE
This fi eld allows ‘None’, ‘Linear’ or ‘Log’ to be selected as scale type. For linear scales, the number of
major/minor scale divisions can be selected. This does not affect the ‘chart’ grid divisions, which is set up
as a part of Group confi guration (section 4.3.2). Figures 4.3.3b1 and 4.3.3b2 show various examples.
NONE
Channels with Scale Type selected to ‘None’, appear with no scale information in any display mode.
LINEAR
Channels with Scale Type = Linear, appear with scale information in all display modes (except numeric).
The number of major and minor divisions can be selected from subsequent fi elds. Examples are shown
in fi gure 4.3.3b1.
SCALE DIVISIONS - MAJOR
Appears for Linear Scale types only. Setting major divisions to 1, means that the scale consists only of
‘zero’ and full scale. Setting Major divisions to 2, means that the scale has divisions at zero, 50% and full
scale, and so on. Intermediate scale values appear at major divisions if there is suffi cient space. Default =
10 for large frame recorders or 5 for small frame units.
SCALE DIVISIONS - MINOR
Appears for Linear Scale types only. With minor divisions set to 1 (default), the scale major divisions are
not divided i.e. no minor division tick marks appear . Setting Minor divisions to 2, means that each major
scale division is divided into two, and so on. See fi gure 4.3.3b1 for an example showing fi ve minor divi-
sions.
LOG
For some input type selections, this appears only if ‘Scaled’ is ticked.
Channels with Scale Type = Log, appear with logarithmic scales. These scales have major divisions at
each decade boundary, and (space permitting), minor divisions for mantissa values 2 to 9. Examples are
shown in fi gure 4.3.3b1. Because of the nature of logarithms, neither negative values nor the value 0 can
be used as scale ‘zero’. Linear inputs are traced as exponental curves (fi gure 4.3.3b2).
LOG/LINEAR
For some input type selections, this appears only if ‘Scaled’ is ticked.
Channels with Scale Type = Log/Linear, appear with logarithmic scales. These scales have major divisions
at each decade boundary, and (space permitting), minor divisions for mantissa values 2 to 9. Examples
are shown in fi gure 4.3.3b1. Because of the nature of logarithms, neither negative values nor the value 0
can be used as scale ‘zero’. Linear inputs are traced as straight lines (fi gure 4.3.3b2).
