58 34410A/11A/L4411A User’s Guide
2 Features and Functions
Ranging
Applies to all measurements except continuity and diode test, which use a fixed range.
Temperature measurements always use autoranging.
You can let the multimeter automatically select the range using autoranging, or you can
select a fixed range using manual ranging. Autoranging is convenient because the
multimeter automatically selects the appropriate range for sensing and displaying each
measurement. However, manual ranging results in better performance, since the
multimeter does not have to determine which range to use for each measurement.
• Autorange thresholds – The multimeter will shift range as follows:
Down range at <10% of present range
Up range at >120% of present range
• Ranging is local to the selected function; the multimeter remembers the selected
ranging method (auto or manual) and selected manual range when you switch
between measurement functions.
• For frequency and period measurements, the selected range is for the ac voltage level
of the input signal.
• For temperature measurements, the multimeter uses autoranging, as appropriate for
the probe type.
• For continuity tests, the multimeter range is fixed at 1 kΩ. For diode tests the range is
fixed at 1 Vdc with a 1 mA current source output.
• Front Panel Operation: For applicable measurement functions, the ranging method
and manual range may be selected by front panel shortcuts
(see “Ranging.” on page 41).
Or, use the configuration menu for the selected function. For the latter method. Press
as required:
...
> RANGE > AUTO or
...
> RANGE > MANUAL (select the desired range.)
Then step through or exit the menu.
For manual ranging: If the input signal is greater than can be measured on the
selected range, the multimeter provides these overload indications:
± OVLD from the front panel or “±9.9E+37” from the remote interface.
(The sign is ±
or +, whichever is appropriate.)
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