Yokogawa Value Series FX1000 - Manual (Page 104)

Measurement Channels and
Alarms
IM 04L21B01-01EN
3-31
3
2
1
4
5
6
7
8
9
10
11
12
13
14
App
Index
When Mode is LogType2 (Log linear input)
You can set the settings so that Scale_L is less than Scale_U or so that Scale_L
is greater than Scale_U. Set the mantissas to values in the range of 1.00 to 9.99.
Set the mantissas using three digits. The mantissa that you set for Scale_L is
automatically set as the mantissa of Scale_U.
Mantissa of Scale_L Setting Range
1.00 1.00E–15 to 1.00E+15. However, the difference between the
exponents must be at least 1.
The scale width must be 15 decades or less.
Scale_L Scale_U Notes
Examples 1.00E+01 1.00E+02
1.00E+15 1.00E+00
Example of
invalid settings
1.00E–01 1.00E+15 The scale width
is greater than
15 decades.
A value other than 1.00 1.01E–15 to 9.99E+14. However, the difference between the
exponents must be at least 1.
The scale width must be 14 decades or less.
Scale_L Scale_U Notes
Examples 1.33E+01 1.33E+02
1.33E+00 1.33E+13
1.33E+13 1.33E+00
Examples of
invalid settings
1.33E–15 1.33E+00 The scale width
is greater than
14 decades.
1.33E+03 1.33E+15 The upper limit
is greater than
9.99E+14.
The scale displayed on the FX is zoomed in until the value that is
less than the lower scale limit and whose mantissa is 1.00 and the
value that is greater than the upper scale limit and whose mantissa is
1.00 are displayed. See Example 4 under Scale Examples.
3.13 Using the Log Scale to Perform Measurements (/LG1 Option)