Yokogawa Button Operated DX2000 - Manual (Page 8)

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2.4. Computation Function (Option)
When a channel set to LOG is used in a computation, error data is used as its
measured value.
2.5. Report Function
Report computation results in error if a channel set to LOG is assigned to a report
channel.
2.6. Functions That Cannot Be Used
Partial expanded display
¾ Partial expanded display cannot be specified on a channel in LOG input
mode.
Difference computation between channels
¾ There is no limitation on setting a channel in LOG input mode as a reference
channel in a difference computation.
¾ However, if such difference computation is executed, the measured result of
the difference channel is error.
Calibration correction function
¾ Calibration correction cannot be specified on a channel in LOG input mode.
2.7. Number of Grids (Number of Divisions of the Scale Display)
The number of grids can be set in the range of 4 to 12 or auto (same as the
standard model).
If the number of grids is set to auto on a target channel set to LOG range, the
number of grids is equal to the number of decades. The display shows a LOG grid
in this case.
Channels set to LOG input mode is automatically set to LOG scale.