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GA10218_0101 - 5/2002
6.2.1 Scale linear/logarithmic
Main menu > View > Scale linear/logarithmic
These settings apply to the bargraph (= bar underneath the digital figures
in the measurement mode) and Y-axis in the trend diagram.
The scale of the bargraph can either be linear or logarithmic. With the
arrows (↑ and ↓) it can be determined how many decades the bargraph
and Y-axis arecovering.
Usually a logarithmic scale is recommended because leak rates may
change easily over several decades. Default setting is logarithmic with 4
decades.
Explanation to Fig. 18:
Key No. Name Description
1 Back Return to the main menu.
2 Scale linear/logarithmic Settings for bargraph and trend mode.
Please refer to Chapter 6.2.1.
3 Display-range auto/
manual
Manual or automatic scaling. Please
refer to Chapter 6.2.2
4 Time axis Time axis in trend. Please refer to
Chapter 6.2.3
5 Contrast Display contrast. Please refer to Chap-
ter 6.2.4
6 Background in Stand-
by
Background displayed or not. Please
refer to Chapter 6.2.5
8 Lower display limit Setting of the display limit. Please refer
to Chapter 6.2.6
Softkey 2: Linear
Pressing this key switches the display to a linear scale, starting at zero.
Softkey 3: ↓ (Number of decades)
Pressing this key reduces the number of displayed decades. The mini-
mum value is 2 decades. Only available if log (softkey 6) was chosen.
Softkey 6: Logarithmic
The scaling will be displayed logarithmically.
Softkey 7: ↑ (Number of decades)
Increase the number of displayed decades. Maximum value is 9 deca-
des. Only available if log (softkey 6) was chosen.
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