User`s guide

34410A/11A/L4411A User’s Guide 45
Features and Functions 2
Configuring AC Voltage and Current Measurements
For ac voltage and ac current measurements, your menu selections are:
AC FILTER, RANGE, NULL and NULL VALUE.
• AC FILTER: Allows you to select one of three choices (3 HZ : SLOW, 20 HZ :
MEDIUM, 200 HZ : FAST). The ac filter allows you to trade off low–frequency
bandwidth versus ac settling time.
• RANGE: Allows you to let the multimeter automatically select the range using
the autoranging feature (select AUTO), or you may select a fixed range
(select MANUAL).
• NULL: Allows you to enable (ON) or disable (OFF) the null measurement
feature, which measures the difference between a stored null value and the
input signal.
• NULL VALUE: Allows you to view and edit the null value (if enabled).
Configuring Resistance Measurements
For 2–wire and 4–wire resistance measurements, your menu selections are:
INTEGRATION, RANGE, OFFSET COMP, AUTO ZERO, NULL and NULL VALUE.
• INTEGRATION: Allows you to set the integration time for the measurement in
two ways; in power–line cycles (NPLC) or in seconds (APERTURE).
• RANGE: Allows you to let the multimeter automatically select the range using
the autoranging feature (select AUTO), or you may select a fixed range
(select MANUAL).
• OFFSET COMP: Allows you to enable (ON) or disable (OFF) the offset
compensation feature. With offset compensation enabled, the multimeter
makes a normal resistance measurement first, followed by a second
measurement to determine any offset voltage in the input circuitry. The
resultant displayed measurement corrects for this offset. Enabling offset
compensation increases measurement time.
• AUTO ZERO: Allows you to enable for all readings (ON), enable for one reading
(ONCE), or disable (OFF) the auto zero feature, which subtracts a subsequent
zero reading from each measurement.
• NULL: Allows you to enable (ON) or disable (OFF) the null measurement
feature, which measures the difference between a stored null value and the
input signal.
• NULL VALUE: Allows you to view and edit the null value (if enabled).
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