Agilent Technologies 34410A, Руководство пользователя

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34410A/11A User’s Guide 47
Features and Functions 2
Configuring Frequency and Period Measurements
For frequency and period measurements, your configuration menu choices
are:
CONFIGURE , GATE TIME , RANGE , AC FILTER , NULL and NULL VALUE .
• CONFIGURE
: Allows you to select either
FREQUENCY
or
PERIOD
as the
primary measurement.
• GATE TIME : Allows you to select one of four choices ( 0.001 , 0.01 , 0.1 or 1 )
for measurement gate time, in seconds.
• RANGE
: Allows you to let the multimeter automatically select the range
using the autoranging feature (select
AUTO
), or you may select a fixed
range using manual ranging (select MANUAL ).
• AC FILTER : Allows you to select one of three choices ( SLOW , MEDIUM or
FAST ) of bandwidth (ac signal filter), enabling you to optimize
low–frequency accuracy or achieve faster ac settling times.
• NULL : Allows you to enable (select ON ) or disable (select 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.
Configuring Temperature Measurements
For temperature measurements, your configuration menu choices are:
PROBE TYPE , OFFSET COMP , AUTO ZERO , INTEGRATION , NULL , NULL VALUE , and UNITS .
• PROBE TYPE : Allows you to select from four choices ( RTD – 4W, RTD – 2W,
THERMISTOR – 2W , or THERMISTOR – 4W ) of temperature probe type.
• OFFSET COMP
(
for RTD probes only
): Allows you to enable (select
ON
) or
disable (select
OFF
) the offset compensation feature. With offset
compensation enabled, the multimeter makes a normal temperature
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
( for 2 – wire thermistor probes only ): Allows you to enable
(select
ON
) or disable (select
OFF
) the auto zero feature, which subtracts
a subsequent zero reading from each measurement taken, to prevent
offset voltages in the multimeter’s input circuitry from affecting
measurement accuracy.