Edwards ELD500 Series

D135-10-880C - Operation
Page 53
Display-range auto/manual
Main menu > View > Display range auto/manual
The upper limit of the displayed leak rate range can be set manually or automatically. These
settings apply to the bar graph (= bar underneath the digital figures in the measurement
mode and y-axis in the trend mode).
With the upper limit defined here the lower limit is set to a value based on the number of
decades.
If linear scale is selected, the lower limit is always zero. The upper limit is only a default value.
This can be changed on the measurement screen with the Softkey 6 and 7 if manual display
ranging has been selected.
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 minimum 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 decades. Only available if
log (softkey 6) was chosen.
Softkey 2: Manual
The upper limit of the displayed range can be set manually.
Softkey 3: 
Decrease the upper limit if manual is chosen. The minimum value is 10
-11
mbar l/s
Softkey 5: ?
Help text
Softkey 6: Automatic
The limit of the displayed range will be chosen automatically.
Softkey 7: 
Increase the upper limit if manual is chosen. The maximum value is 10
3
mbar l/s
Softkey 8:
Save the settings and return to the previous menu.