34411A AGILENT TECHNOLOGIES, 34411A Datasheet - Page 12

MULTIMETER, DIGITAL, BENCH, 6-1/2 DIGIT

34411A

Manufacturer Part Number
34411A
Description
MULTIMETER, DIGITAL, BENCH, 6-1/2 DIGIT
Manufacturer
AGILENT TECHNOLOGIES
Datasheet

Specifications of 34411A

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
External DMM connected to switch
The fastest and most convenient
way to scan through a list of
channels is to hardware-couple
the DMM directly to a switch
instrument, like the Agilent
34980A switch/measure unit.
Once you start a scan, the
switch and DMM communicate
without any intervention from
the PC. This is much faster than
trying to sequence channels
using software commands.
Most switch instruments imple-
ment a channel closed output
and a channel advance input:
• Channel closed –
• Channel advance –
When using an external DMM,
the voltmeter complete line of
the DMM is connected to the
channel advance of the switch.
The external trigger input of
the DMM is connected to the
channel closed output of the
switch. A channel list is created
in the switch and is configured
to sequence through channels
when a pulse is received on its
channel advance. The channel
a pulse is output when a
channel is guaranteed closed
a pulse received advances to
the next channel in the list
Figure 8. Agilent 34980A switch/measure unit and 34410A DMM
list is initiated, and the switch
will close the first channel in
the list to begin the process.
When the first channel in the
list is guaranteed closed, the
switch instrument’s channel
closed output is pulsed. That
pulse triggers the DMM. When
the DMM is finished looking at
the input signal, it will pulse
its voltmeter complete output.
This causes the current channel
to open and the next channel
to close. The cycle is repeated
until all channels have been
scanned. Programming exam-
ples are included with the
34410A/ 34411A CD (and at
www.agilent.com/find/34410A
show how to use an external
DMM to scan channels with the
34980A switch/measure unit.
12
) that
The 34410A and 34411A use
a fast auto-ranging technique
that makes scanning a wide
variety of signal levels virtually
as fast as most switches can
scan. Voltmeter complete and
external trigger levels can be
set as positive- or negative-
going pulses to accommodate
virtually any external switch
instrument. If necessary, an
additional delay can be pro-
grammed into the sample rate
of the DMM in order to permit
additional time for input signals
to settle before the DMM
actually makes measurements.