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6240B DC Voltage Current Source/Monitor Operation Manual
4.2 Function Description
4-3
4.2
Function Description
This section describes the panel keys and the parameter functions in alphabetical order.
4.2.1
AUTO key (Measurement Range)
Switches between measurement auto range and fixed range.
Auto range:
Measures in the optimum range between the limiter range and the minimum range.
The AUTO indicator turns ON.
Fixed range:
The measurement range does not vary. The AUTO indicator turns OFF.
If the measurement function and the source function are different, the range is fixed
at the limiter range. If the measurement function and the source function are the
same, the range is fixed at the source range.
For more information on the measurement auto range, refer to Section 5.2.6.2, "Measurement Ranging."
4.2.2
DOWN Key (Source Range)
Decreases the source range by one step. However, it is impossible to decrease to the range that cannot out-
put the currently set source value. In this case, the source range setting mode is set to LOCK.
4.2.3
FIT Key (Source Range)
Switches the source range setting mode between FIT and LOCK.
The source range setting mode is retained at each source function.
FIT status:
Sets the optimal range for the input source value.
The FIT
indicator turns ON.
LOCK status: Fixes the present source range.
The FIT
indicator turns OFF.
NOTE:
Switching between FIT and LOCK does not change the source range.