Yokogawa Value Series FX1000 - Manual (Page 103)

3-30 IM 04L21B01-01EN
Setup Items
• Input Range
• First-CH, Last-CH
Select the target channels.
• Range > Mode
Setting Name
LogType1 Log input (Nonlinear log input is possible through the use of calibration correction.)
LogType2 Log linear input or pseudo log input.
• Range > Range
Set the range to
20mV, 60mV, 200mV, 2V, 6V, 20V, 50V, or 1V.
• Range > Span_L and Span_U
Set the settable range for the Range setting. You have to set these settings so that
Span_L is less than Span_U.
• Range > Scale_L, Scale_U
Set the values by specifying the mantissas and exponents. Set the mantissas with
two decimal places.
When Mode is LogType1
Set the settings so that Scale_L is less than Scale_U. Set the mantissas to values
in the range of 1.00 to 9.99. Set the mantissas using three digits.
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
Example 1.00E+01 1.00E+02
Examples of
invalid settings
1.00E+01 2.00E+01 The difference
between the
exponents is less
than 1.
1.00E–01 1.00E+15 The scale width
is greater than 15
decades.
A value other than 1.00 1.01E–15 to 1.00E+15. However, the difference between the
exponents must be at least 2.
The scale width must be 15 decades or less.
Scale_L Scale_U Notes
Examples 2.00E+01 1.00E+03
2.00E+00 5.00E+14
Example of invalid
settings
2.00E+01 7.00E+02 The difference
between the
exponents is less
than 2.
2.00E–01 1.00E+15 The scale width
is greater than 15
decades.
2.00E+03 2.00E+15 The upper limit
is greater than
1.00E+15.
3.13 Using the Log Scale to Perform Measurements (/LG1 Option)