Agilent L4411A Product Overview

Agilent L4411A
‘Low profile’ 6

1

⁄2 Digit Multimeter

Leading the industry in high-performance system test

Product overview

Agilent L4411A 61⁄2 Digit
High-Performance DMM

• 50,000 readings/sec @ 41⁄2 digits
direct to PC

• 10,000 readings/sec @ 5

1

⁄2 digits

direct to PC

• 1,000 readings/sec @ 6

1

⁄2 digits

direct to PC

• Analog level triggering

• Programmable pre/post triggering

• LAN Extensions for Instruments
(LXI), USB & GPIB standard

• 30 PPM 1 year basic DC accuracy

• DCV, ACV, DCI, ACI, 2-wire and
4-wire resistance, frequency,
period, and diode test

• Capacitance & temperature
measurements

• Expanded measurement ranges

A new standard for modular
system DMMs

The L4411A 61⁄2 digit high perfor-
mance DMM expands Agilent’s
industry leading offering of LXI
system products. For the test system
integrator looking for the next gener­ation modular DMM, this new meter
offers the industry’s best measurement
speed and throughput, a reduced size
(1 rack unit high), superior measure­ment performance, and a choice of
computer interfaces, including LXI,
providing high performance, easy to
use, economical I/O. A simple display,
including ‘latest reading’ and LAN
address, allows the system integrator
to quickly integrate and debug the
test system. And finally, the DMM
comes with a compatibility mode,
requiring little-to-no code change to
upgrade your test system with next
generation capabilities.

Dramatic system performance

Whether it’s raw reading speed or fast
system throughput, the L4411A sets
a new benchmark in performance.
Using a new A/D technology, the
L4411A achieves an impressive
50,000 readings a second at 4

1

⁄2 digits,
and can stream readings to your
computer at this same speed!
Transactional I/O (single reading—
measurement and PC transfer time)
is 3x faster than other popular
modular DMMs, significantly enhanc­ing your test throughput. Triggering
is fast and precise, with both trigger
latency and trigger jitter less than
1 µs, while bus query response is
less than 500 µs. ACV measurements
are faster as well thanks to a digital
measurement technique that addi­tionally improves accuracy at high
and low frequencies.

LXI—class C

LAN Extensions for Instruments (LXI)
provides the next generation I/O for
system applications requiring high
throughput. Transfer rates of over
250,000 readings/sec are attainable
ensuring even the most data intensive
measurements are fast, without the
overhead cost of an instrument
mainframe. LXI provides a built-in
Graphical Web Interface that allows
you to interactively control the DMM
without the hassle of programming,
great for debugging your system. The
L4411A DMM is LXI — Class C

compliant.

Enhanced measurement
capabilities

The L4411A offers Temperature and
Capacitance capabilities, in addition
to those measurements you have
come to expect, such as DCV, ACV,
DCI, ACI, 2-wire and 4-wire
Resistance, Frequency, Period and
Diode Test. You also get Offset
Compensated Ohms, allowing you to
accurately measure resistance in the
presence of voltages. Measurement
ranges have been expanded as well;
for example, DC and AC Current
Ranges now go down to 100 µA,
resulting in 100 pA resolution.
Real-time math and statistics are
included, and a peak-detect capability
allows you to capture peaks as short
as 20 µs.

System integration

When deciding on your next system
DMM you can’t go wrong with the
L4411A. Choose from LAN (LXI),
USB or GPIB interfaces, all standard
on the L4411A, to connect to your
computer. The 1U size is perfect for
space constrained applications like
Aerospace/Defense Depot Test.
Concerned about the viability of
your existing software programs?

This new DMM responds to Standard
Commands for Programmable
Instrumentation (SCPI). Additionally
there is a 34401A/E1412A Emulation
Mode to ensure the easiest upgrade
possible, virtually eliminating costly
software and documentation changes.
The autoranging power supply allows
you to connect to any input power
without selecting input voltages or
changing fuses. Agilent’s I/O Library
Suite ships with the L4411A to help
you quickly establish an error-free
connection between your PC and
instrument. It provides robust
instrument control and works with
the software development environ­ment you choose.

Companion LXI switch modules

Need a switch to route your signal
to the L4411A? Consider Agilent’s
LXI switch modules. Choose from
a 40-Channel Armature Relay
Multiplexer (L4421A), a Dual/Quad
4x8 reed relay matrix (L4433A) or a
32-channel Form A/C general purpose
relay switch module (L4437A).
Additionally, Agilent has LXI DAC,
Digital I/O and multi-function modules
to help complete your test system
requirements. All from the leader
in LXI instrumentation, Agilent
Technologies.

Built to last

Our new DMM was designed to high
standards of ruggedness and reliability.
From the robust, compact package to
careful selection of components and
conservative circuit design, this meter
is built to last. Calculated Mean Time
Between Failure (MTBF) is in excess
of 100,000 hours. Backed by a 1-year
warranty and a worldwide network
of service centers, you can buy with
confidence.

Go to the web

For the latest information on these
or other Agilent DMMs, go to

www.agilent.com/find/dmm

Accessories included:

Test report, power cord, LAN cross-over
interface cable.

Product Reference CD-ROM (34410-

13601)

• Software

- IntuiLink software

- IVI-COM driver

- LabView driver

- Example programs

• Online Documentation

- Programmer’s Reference

- Getting Started Guide

- User’s Guide

- Service Guide

- Localized Manuals

Agilent I/O Libraries CD-ROM
(E2094-60003)

2

DMM dimensions (mm)

212.3

363.2

40.9

3

Accuracy specifications ± (% of reading + % of range)

1

Function Range

3

Frequency, test 24 hour

2

90 day 1 year Temperature coefficient/°C

current or Tcal ± 1°C Tcal ± 5°C Tcal ± 5°C 0°C to (Tcal - 5°C)

burden voltage (Tcal + 5°C) to 55°C

DC voltage

100.0000 mV 0.0030 + 0.0030 0.0040 + 0.0035 0.0050 + 0.0035 0.0005 + 0.0005

1.000000 mV 0.0020 + 0.0006 0.0030 + 0.0007 0.0035 + 0.0007 0.0005 + 0.0001

10.00000 V 0.0015 + 0.0004 0.0020 + 0.0005 0.0030 + 0.0005 0.0005 + 0.0001

100.0000 V 0.0020 + 0.0006 0.0035 + 0.0006 0.0040 + 060.00 0.0005 + 0.0001

1000.000 V

4

0.0020 + 0.0006 0.0035 + 0.0006 0.0040 + 06 0.0005 + 0.0001

True RMS AC

3 Hz – 5 Hz 0.50 + 0.02 0.50 + 0.03 0.50 + 0.03 0.010 + 0.003

voltage

5

100.0000 mV 5 Hz– 10 Hz 0.10 + 0.02 0.10 + 0.03 0.10 + 0.03 0.008 + 0.003
to 10 Hz – 20 kHz 0.02 + 0.02 0.04 + 0.02 0.045 + 0.02 0.005 + 0.002

750.000 V 20 kHz – 50 kHz 0.04 + 0.025 0.08 + 0.025 0.090 + 0.025 0.010 + 0.0025
50 kHz – 100 kHz 0.10 + 0.040 0.20 + 0.040 0.200 + 0.040 0.020 + 0.0040

100 kHz – 300 kHz 1.00 + 0.250 1.20 + 0.250 1.200 + 0.250 0.120 + 0.0200

Resistance

6

100.0000 Ω 1 mA 0.0030 + 0.0030 0.008 + 0.004 0.010 + 0.004 0.0006 + 0.0005

1.000000 kΩ 1 mA 0.0020 + 0.0005 0.007 + 0.001 0.010 + 0.001 0.0006 + 0.0001

10.0000 kΩ 100 µA 0.0020 + 0.0005 0.007 + 0.001 0.010 + 0.001 0.0006 + 0.0001

100.0000 kΩ 10 µA 0.0020 + 0.0005 0.010 + 0.001 0.012 + 0.001 0.0006 + 0.0001

1.000000 MΩ 5 µA 0.0020 + 0.0010 0.030 + 0.001 0.040 + 0.001 0.0010 + 0.0002

10.00000 MΩ 500 nA 0.0100 + 0.0010 0.600 + 0.001 0.800 + 0.001 0.0030 + 0.0004

100.0000 MΩ 500 nA || 10 MΩ 0.200 + 0.001 6.000 + 0.001 8.000 + 0.001 0.1000 + 0.0001

1.000000 GΩ 500 nA || 10 MΩ 2.000 + 0.001 1.0000 + 0.0001

DC current

100.0000 µA < 0.03 V 0.010 + 0.020 0.040 + 0.025 0.050 + 0.025 0.0020 + 0.0030

1.000000 mA < 0.30 V 0.007 + 0.006 0.030 + 0.006 0.050 + 0.006 0.0020 + 0.0005

10.00000 mA < 0.03 V 0.007 + 0.020 0.030 + 0.020 0.050 + 0.020 0.0020 + 0.0020

100.0000 mA < 0.30 V 0.010 + 0.004 0.030 + 0.005 0.050 + 0.005 0.0020 + 0.0005

1.000000 A < 0.80 V 0.050 + 0.006 0.080 + 0.010 0.100 + 0.010 0.0050 + 0.0010

3.000000 A < 2.0 V 0.100 + 0.020 0.120 + 0.020 0.150 + 0.020 0.0050 + 0.002

True RMS AC

100.0000 µA to 3 Hz – 5 kHz 0.10 + 0.04 0.10 + 0.04 0.10 + 0.04 0.015 + 0.006

current

7

3.000000 A 5 kHz– 10 kHz 0.20 + 0.04 0.20 + 0.04 0.20 + 0.04 0.030 + 0.006

Frequency or

100 mV 3 Hz – 5 Hz 0.070 + 0.000 0.070 + 0.000 0.070 + 0.000 0.005 + 0.000

period

to 5 Hz – 10 Hz 0.040 + 0.000 0.040 + 0.000 0.040 + 0.000 0.005 + 0.000

750 V 10 Hz – 40 Hz 0.020 + 0.000 0.020 + 0.000 0.020 + 0.000 0.001 + 0.000

40 Hz – 300 kHz 0.005 +0.000 0.006 +0.000 0.007 +0.000 0.001 + 0.000

Capacitance

8

1.0000 nF 500 nA 0.50 + 0.50 0.50 + 0.50 0.50 + 0.50 0.05 + 0.05

10.000 nF 1 µA 0.40 + 0.10 0.40 + 0.10 0.40 + 0.10 0.05 + 0.01

100.00 nF 10 µA 0.40 + 0.10 0.40 + 0.10 0.40 + 0.10 0.01 + 0.01

1.0000 µF 10 µA 0.40 + 0.10 0.40 + 0.10 0.40 + 0.10 0.01 + 0.01

10.000 µF 100 µA 0.40 + 0.10 0.40 + 0.10 0.40 + 0.10 0.01 + 0.01

Temperature

9

RTD

-200°C to 600°C 0.06°C 0.06°C 0.06°C 0.003°C

Thermistor

-80°C to 150°C 0.08°C 0.08°C 0.08°C 0.002°C

Diode test

10

1.0000 V 1 mA 0.002+ 0.010 0.008+ 0.020 0.010+ 0.020 0.0010+ 0.0020

1

Specifications are for 90 minute warm-up and 100PLC.

2

Relative to calibration standards.

3

20% overrange on all ranges, except DCV 1000 V, ACV 750 V, DCI and ACI 3 A ranges.

4

For each additional volt over ± 500 V add 0.02 mV of error.

5

Specifications are for sinewave input > 0.3% of range and > 1 mVrms. Add 30 uV error for frequencies below 1 kHz.
750 VAC range limited to 8 x 10

7

Volts-Hz. For each additional volt over 300 Vrms add 0.7 mVrms of error.

6

Specifications are for 4-wire resistance measurements, or 2-wire using Math Null.
Without Math Null, add 0.2 Ω additional error in 2-wire resistance measurements.

7

Specifications are for sinewave input > 1% of range and > 10µArms. Frequencies > 5 kHz are typical for 1 A and 3 A ranges.

8

Specifications are for 1-hour warm-up using Math Null. Additional errors may occur for non-film capacitors.

9

For total measurement accuracy, add temperature probe error.

10

Accuracy specifications are for the voltage measured at the input terminals only. 1 mA test current is typical.
Variation in the current source will create some variation in the voltage drop across a diode junction.

4

A-to-D converter noise performance

Integration Resolution Normal mode Readings/

time (NPLC) (ppm of range)

1

rejection (dB)

2

second

4

0.001 30 0 50,000

0.002 15 0 25,000

0.006 6 0 10,000

0.02 3 0 3,000

0.06 1.5 0 1,000

0.2 0.7 0 300

1 0.3 55 60 (50)

2 0.2 110

3

30 (25)

10 0.1 110

3

6 (5)

100 0.03 110

3

0.6 (0.5)

1

Resolution is defined as the typical DCV 10V range RMS noise.
Auto-zero on for NPLC ≥ 1. See manual for additional noise characteristics.

2

Normal mode rejection for power line frequency ± 0.1%.

3

For power-line frequency ± 1% 75 dB and for ± 3% 55 dB.

4

Maximum rate with auto-zero off for 60Hz and (50Hz) operation.

100

10

1

0.1

0.01

0.001 0.01 0.1 1 10 100

Integration time (NPLC)

RMS noise (ppm of range)

DMM
input

DMM memory

50k readings

non-volatile

Path ‘A’

Path ‘C’ Path ‘B’

PC

USB

LAN

GPIB

ADC

L4411A/
34410A/
34411A
DMM

System reading architecture

System reading and throughput rates

DMM memory to PC (Maximum reading rate out of memory)

1

Drawing – Path B

Reading format GPIB USB 2.0 LAN (VXI-11) LAN (sockets)

readings/sec readings/sec readings/sec readings/sec

ASCII 4,000 8,500 7,000 8,500

32-bit binary 89,000 265,000 110,000 270,000

64-bit binary 47,000 154,000 60,000 160,000

Direct I/O measurements (single reading—measure and I/O time)

1

Drawing – Path C

Function Resolution (NPLC) GPIB USB 2.0 LAN (VXI-11) LAN (sockets)

msec msec msec msec

DCV/2-wire resistance 0.001 2.6 2.9 4.6 3.2 50,000

ACV/frequency Fast filter 10.0 10.0 10.0 10.0 500

1ms gate

1

1/2 scale input signal, immediate trigger, trigger delay 0, auto-zero off, auto-range off, no math, null off, 60 Hz line frequency.
See manual for performance on other functions.

System performance

Function change Range change Auto-range Maximum external Maximum internal

(msec)

1

LAN/GPIB (msec)

3

trigger rate trigger rate

(msec)

2

DCV/2-wire resistance 22 3.9/2.6 7.5 5,000/s 50,000/s

ACV/frequency 37 6.5/6.4 19 500/s 500/s

1

Time to change from 2-wire Resistance to this specified function,
or DCV to 2-wire resistance using the SCPI ”FUNC" command

2

Time to change from one range to the next higher range, ≤ 10 V, ≤ 10 MΩ

3

Time to automatically change one range and be ready for the new measurement, ≤ 10 V, ≤ 10 MΩ

Maximum reading rate

into memory or to direct I/O

(readings/sec)

Drawing – Path A or C

DC voltage

Measurement method:

Continuously integrating multi-slope IV A/D
converter

Linearity: 0.0002% reading
(10V range) + 0.0001% range

Input resistance:

0.1V, 1V, 10V 10 M

Ω

or > 10 G

Ω

Ranges (selectable)

100V, 1000V 10 M

Ω

±1%

Ranges (fixed)

Input bias current: < 50pA at 25°C

Input protection: 1000V

DC CMRR: 140 dB

1

True RMS AC voltage

Measurement method:

AC-coupled true RMS measurement.
Digital sampling with anti-alias filter.

Crest factor:

No additional error for crest factors < 10.
Limited by peak input and 300 kHz bandwidth.

Peak input: 300% of range or

1100V

Overload ranging:

Will select higher range if peak input
overload is detected during auto range.
Overload is reported in manual ranging.

AC CMR: 70 dB

2

Maximum input: 400 Vdc, 1100 Vpk

Input impedance:

1 M

Ω

± 2% in parallel with < 150 pF

Input protection: 750 Vrms all ranges

Resistance

Measurement method:

Selectable 2-wire or 4-wire.
Current source referenced to LO input.

Offset compensation:

Selectable on the 100

Ω

, 1 kΩ, and 10 k

Ω

ranges

Max. lead resistance (4-wire):

10% of range per lead for 100

Ω

, 1 kΩ.

1 k

Ω

per lead on all other ranges.

Input protection: 1000 V on all ranges

DC current

Current shunt: 200 Ωfor 100 µA, 1 mA

2

Ω

for 10 mA, 100 mA

0.1

Ω

for 1 A, 3 A

Input Protection: 3 A, 250 V fuse

True RMS AC current

Measurement method:

AC-coupled True RMS measurement.
Directly coupled to the fuse and shunt.
Digital sampling with anti-alias filter.

Current shunt: 200

Ω

for 100 µA, 1 mA

2

Ω

for 10 mA, 100 mA

0.1

Ω

for 1 A, 3 A

Maximum input:

The peak value of the DC + AC current must
be < 300% of range. The RMS current must
be < 3 A including the DC current content.

Input Protection: 3 A, 250 V fuse

Frequency and period

Measurement method:

Reciprocal-counting technique. AC coupled
input using the AC voltage measurement
function.

Input impedance:

1 M

Ω

± 2% in parallel with < 150 pF

Input protection: 750 Vrms all ranges

Capacitance

Measurement method:

Current input with measurement of
resulting ramp.

Connection type: 2-wire

Temperature

Thermistor: 2.2 kΩ, 5 kΩ, and 10 k

Ω

RTD: α = 0.00385

Rofrom 49

Ω

to 2.1 k

Ω

Diode test

Response time: 300 samples/sec

Continuity threshold: Fixed at 10 Ω

Operating characteristics

Maximum readings/second

Digits

Function

3

4.5 5.5 6.5
DCV 50k 10k 1k
2-wire Ω 50k 10k 1k
DCI 50k 10k 1k
Frequency 500 90 10
Period 500 90 10
Filter setting fast med slow
ACV 500 150 50
ACI 500 150 50

Additional specifications

Overall bandwidth, DCV & DCI:

15kHz typical @ 20µs aperture (-3 dB)

Triggering:

Pre/Post, Int/Ext, Pos/Neg

Timebase resolution:

19.9524 µs 0.01% accuracy

Trigger jitter:

2µs (p-p), 20µs (p-p) when pre-triggered

Spurious-free dynamic range and

signal to noise distortion ratio

Function Range Spur-free SNDR

DCV 1 V -75 dB 60 dB

10 V

4

-70 dB 60 dB

100 V -75 dB 60 dB

4

10 V range: 2 V (p-p) <signal< 16 V (p-p)

5

Measurement characteristics

1

For 1 kΩ unbalanced in LO lead, ± 500 V
peak maximum

2

For 1 kΩ unbalanced in LO lead and < 60
Hz, ± 500 V peak maximum

3

Maximum rate for DCV, DCI, and resis­tance functions (using zero settling delay,
autozero off, manual range)

Triggering and memory

Reading hold sensitivity:

1% of reading

Samples per trigger: 1 to 1,000,000

Trigger delay: 0 to 3600 sec

(20 µs step size)

External trigger:

Programmable edge,
Low-power TTL compatible

Delay: < 1 µs
Jitter: < 1 µs
Max rate: 5,000 / sec
Min pulsewidth: 1 µs
Voltmeter complete:

3V Logic output, 2 µs pulse with
programmable edge

Nonvolatile memory: 50,000 readings

Volatile memory: 1,000,000 readings

Sample timer:

Range: 0 to 3600 sec

(20 µs step size)

Jitter: < 100 ns

General specifications

Power supply: 90V – 264V @ 45-66 Hz

90V – 134V @ 360 – 440 Hz

Power line frequency:

Automatically sensed at power-on

Power consumption:

50 VA peak (18 W average)

Operating environment:

Full accuracy for 0°C to 55°C,
80% R.H. at 40°C non-condensing

Storage temperature: -40°C to 70°C

Weight: 1.9 kg (4.25 lbs)

Dimensions:

(WxHxD) 40.9mm x 212.3mm x 363.2mm

Safety:

IEC 61010-1, EN 61010-1, UL 61010-1,
CAN/CSA-C22.2 No. 61010-1, Refer to
Declarations of Conformity for current
revisions. Measurement CAT II 300V, CAT I
1000V. Pollution Degree 2

EMC:

IEC 61326, EN 61326, CISPR 11, ICES-001,
AS/NZS 2064.1, refer to Declaration of
Conformity for current revisions.

Vibration and shock:

MIL-T-28800E, Type III, Class 5 (Sine Only)

LXI compliance: LXI Class C, ver. 1.0

Warranty: 1 year

6

Ordering information
Agilent L4411A Multimeter

Accessories included:

Test report, power cord, LAN cross-over
interface cable.

Product reference CD-ROM (34410-13601)

• Software

- IntuiLink software

- IVI-COM driver

- LabView driver

- Example programs

• Online documentation

- Programmer’s reference

- Getting started guide

- User’s guide

- Service guide

- Localized manuals

Agilent I/O Libraries CD-ROM
(E2094-60003)

Options

Opt. STD

Rear measurement terminals

Opt. 001

Front measurement terminals

Opt. ABA

Printed manual set (English)

Opt. 0B0

Delete printed manual set
(full documentation included on
CD ROM)

Opt. A6J

ANSI Z540 compliant calibration

Agilent accessories

Y1133A

Measurement & trigger cable kit

Y1160A

Rack mount kit for L4400A series
instruments racks 1 or 2 instruments
side-by-side on sliding tray

11059A

Kelvin probe set

11060A

Surface mount device (SMD)
test probes

11062A

Kelvin clip set

34171B

Input terminal connector
(sold in pairs)

34172B

Input calibration short
(sold in pairs)

34330A

30 A current shunt

E2308A

5 kΩthermistor probe

7

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Revised: 02/05/07

Product specifications and descriptions in
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© Agilent Technologies, Inc. 2007
Printed in USA, March 8, 2007
5989-6303EN

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