34410A-GSA AGILENT TECHNOLOGIES, 34410A-GSA Datasheet - Page 16

• Manufacturer Part Number: 34410A-GSA
• Description: MULTIMETER, DIGITAL, BENCH, 6-1/2 DIGIT
• Manufacturer: AGILENT TECHNOLOGIES

Specifications of 34410A-GSA

• 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

How to set up various
triggering scenarios
The 34410A and 34411A have two
triggering models. The models
are illustrated in Figure 10.
When you use the SCPI com-
mands shown in the previous
section, the count and delay
pacing model is implied. If
the trigger delay is zero, the
next measurement will begin
immediately after the previous
measurement. This model is
particularly useful for general-
purpose measurements –
especially if you want to use
autorange. That is, you set up
the DMM to run as fast as it
can, and you don’t worry about
how long each measurement
is taking. However, this model
is not good for waveform
capture, since the constant
trigger delay occurs after a
measurement is completed.
The precision sample timing
model is used to perform
waveform capture. In this case,
the sample period is set to a
value less than or equal to the
interval. As long as the sample
period does not exceed the
interval, predictable time
placement of measurements
takes place. Note that trigger
delay is now a separate para-
meter and is only used at the
beginning of the burst of
measurements. With this
model, using autorange is
[
Figure 10. Multimeters can pace samples by using just a delay (top), or by using a precise timer (bottom).
not a good idea, since you
don’t really know when the
measurement will begin or
end. Samples that exceed the
interval will cause a warning
that timing is not met, which
simply means you are no
longer precisely pacing all
measurements.
Here is an example of using
the precision sampling trigger
subsystem. All measurements
are stored in reading storage,
DCV at 50 k readings/s, an
initial 1 ms trigger delay,
and external trigger:
CONF:VOLT:DC
VOLT:ZERO:AUTO OFF
VOLT:RANGE 1.0
VOLT:APER 20e-6
TRIG:DELAY:AUTO OFF
TRIG:DELAY 1e-3
TRIG:SOUR EXT
SAMP:SOUR TIMER
SAMP:TIMER 20e-6
SAMP:COUNT 50000
INIT
Count and Delay Pacing
Precision Sample Timing
Trigger
Trigger
Trigger
Delay
Trigger
Delay
16
Sample #1
Sample #1
Interval
]
Trigger
Delay
Sample #2
The INIT command arms
the trigger system, and the
system is now waiting for an
external trigger. Notice that
the sample timer can equal
the aperture time.
This example can be modified
slightly to use level triggering
to trigger at 0.8 V.
TRIG:SOUR INT
TRIG:LEVEL 0.80
Adding the following command
to the level triggering changes
would allow 1,000 readings to
be taken in pre-trigger mode,
so that 49,000 readings will be
taken after the 0.8 V level is
exceeded. The SAMP:COUNT
is the overall number of read-
ings to be taken. PRET will
subtract from the 50,000.
SAMP:COUNT:PRET 1000
Sample #2
Interval
Trigger
Delay
Sample #3
Interval
Sample #3