Yokogawa Value Series FX1000 - Manual (Page 105)

3-32 IM 04L21B01-01EN
Scale Examples
Examples of scales are shown below.
Example 1
In this example, the mantissa of the scale lower limit and the mantissa of the scale
upper limit are both 1.
Lower Upper
Scale 1.00E+01 1.00E+04
Example 2
In this example, the mode is set to LogType1, and the mantissa of the scale lower
limit and the mantissa of the scale upper limit are both a value other than 1.
Lower Upper
Scale 5.00E+00 2.00E+04
The end points of the scale are displayed using single digits if there is space to
display them.
Example 3
In this example, the mode is set to LogType2, and the settings are set so that
Scale_L is greater than Scale_U. The input voltage (between Span_L and Span_U)
is between 1 V and 5 V.
Lower Upper
Span 1 V 5 V
Scale 1.00E+04 1.00E+01
1 V
Scale
5 V
Example 4
In this example, the mode is set to LogType2, and the mantissa of the scale lower
limit and the mantissa of the scale upper limit are both a value other than 1. 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. Only the scale is zoomed in.
Span_L equals Scale_L, and Span_U equals Scale_U.
Lower Upper
Span 1 V 5 V
Scale 1.33E+01 1.33E+04
Scale displayed on the FX 1.00E+01 1.00E+05
10
1
10
2
10
3
10
5
Pa 10
4
5 V (1.33E+04)
Scale
1 V (1.33E+01)
Note
Regarding Log Scale Over-range
A value less than –5% of the voltage span is a negative over-range, and a value greater than
105% of the scale is a positive over-range. They are displayed as –Over and +Over. The “Value
on over-range” setting (see section 3.11) is not applied to channels that are set to log scale.
Example: If the span lower limit is set to 0 V and the span upper limit is set to 10 V, a value less
than –0.5 V will result in “–Over” being displayed. A value greater than 10.5 V will result in
“+Over” being displayed.
3.13 Using the Log Scale to Perform Measurements (/LG1 Option)