34410A AGILENT TECHNOLOGIES, 34410A Datasheet - Page 10
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34410A
Manufacturer Part Number
34410A
Description
MULTIMETER, DIGITAL, BENCH, 6-1/2 DIGIT
Manufacturer
AGILENT TECHNOLOGIES
Datasheet
1.34410A.pdf
(20 pages)
Specifications of 34410A
Dmm Type
Bench
Voltage Measuring Range Dc
100mV To 1000V
Voltage Measuring Range Ac
100mV To 750V
Current Measuring Range Dc
100µA To 3A
Current Measuring Range Ac
100µA To 3A
Lead Free Status / RoHS Status
na
The 34411A level trigger is
specified in units of any mea-
surement function. In this case,
a DCV measurement is being
made at 50 k samples/s. With
1 million readings, 20 seconds
of data can be stored at this
rate. Pre- and post-triggering
allows you to create a scope-
like capture of the waveform
around an event. The DMM will
continuously make measurements
until the level trigger is met. It
will retain the pre-trigger count
of measurements and then begin
the count of post-trigger mea-
surements. This is an excellent
alternative to waiting for an
asynchronous event, and there
is no discontinuity of measure-
ments between pre- and post-
trigger counts.
Figure 5. Using a precision timer to sample signals
Trigger
Trigger
Delay
Sample #1
Interval
Sample #2
Interval
Delayed sampling from occur-
rence of an external trigger
In many applications, you need
to wait a period of time before
actually making a measurement,
as illustrated in the example
where we discussed precision
DC measurements of pulses.
There are many reasons for
delaying a measurement. You
may need to wait for the signal
to settle – as is typical when
you are measuring large resis-
tances in the presence of stray
capacitance. In the ballast
application we discussed earlier,
a delay is needed to make the
instrument wait until after the
initial high-voltage discharge
has taken place, so the quies-
cent AC voltage level can be
measured.
Sample #3
10
Interval
Both the 34410A and 34411A
have a hardware-coupled
external trigger input. A delay
can be inserted between the
external event and the start
of any measurement. This
delay can be zero, and the
measurement engine starts its
measurement in less than 1 µs
from the external trigger (DC
measurement). The delay can
also be up to 3600 seconds
(with 20 µs resolution).
Both the 34410A and 34411A
have a precision sample timer
with very little jitter (<100 ns).
An external trigger event can
start a single measurement
or a burst of measurements
spaced by the sample timer.
Figure 5 illustrates the concept
of a separate trigger delay
and sample intervals. Sample
intervals can be as low at
100 µs for the 34410A and
20 µs for the 34411A.