Agilent 34401A Multimeter
Uncompromising Performance for Benchtop and System Testing
Product Overview
• Measure up to 1000 volts with
6 1 ⁄
2 digits resolution
• 0.0015% basic dcV accuracy
(24 hour)
• 0.06% basic acV accuracy
(1 year)
• 3Hz to 300kHz ac bandwidth
• 1000 readings/sec. direct to GPIB
Superior performance
The Agilent Technologies 34401A multimeter gives you the performance you need for fast, accurate bench and system testing. The 34401A provides a combination of resolution, accuracy and speed that rivals DMMs costing many times more. 6 1 ⁄
2
-digits of resolution, 0.0015% basic 24-hr dcV accuracy and 1,000 readings/sec direct to
GPIB assure you of results that are accurate, fast, and repeatable.
Use it on your benchtop
The 34401A was designed with your bench needs in mind. Functions commonly associated with bench operation, like continuity and diode test, are built in. A Null feature allows you to remove lead resistance and other fixed offsets in your measurements.
Other capabilities like min/max/avg readouts and direct dB and dBm measurements make checkout with the 34401A faster and easier.
The 34401A gives you the ability to store up to 512 readings in internal memory. For trouble-shooting, a reading hold feature lets you concentrate on placing your test leads without having to constantly glance at the display.
Use it for systems testing
For systems use, the 34401A gives you faster bus throughput than any other DMM in its class. The 34401A can send up to 1,000 readings/sec directly across GPIB in user-friendly
ASCII format.
You also get both GPIB and RS-232 interfaces as standard features.
Voltmeter Complete and External
Trigger signals are provided so you can synchronize to other instruments in your test system. In addition, a
TTL output indicates Pass/Fail results when limit testing is used.
To ensure both forward and backward compatibility, the 34401A includes three command languages
(SCPI, Agilent 3478A and Fluke
8840A /42A), so you don’t have to rewrite your existing test software. An optional rack mount kit is available.
Easy to use
Commonly accessed attributes, such as functions, ranges, and resolution are selected with a single button press.
Advanced features are available using menu functions that let you optimize the 34401A for your applications.
The included Agilent IntuiLink software allows you to put your captured data to work easily, using
PC applications such as Microsoft
Excel® or Word® to analyze, interpret, display, print, and document the data you get from the 34401A. You can specify the meter setup and take a single reading or log data to the
Excel spreadsheet in specified time intervals. Programmers can use
ActiveX components to control the
DMM using SCPI commands. To find out more about IntuiLink, visit www.agilent.com/find/intuilink
1-year Warranty
With your 34401A, you get full documentation, a high-quality test lead set, calibration certificate with test data, and a 1-year warranty, all for one low price.
Accuracy Specifications ± (% of reading + % of range)
[1]
Function dc Voltage
True rms ac Voltage [4]
Resistance [7] dc Current
True rms ac Current [4]
Frequency or Period [8]
Continuity
Diode Test [9]
254.4 mm
212.6 mm
Range [3]
100.0000 mV
1.000000 V
10.00000 V
100.0000 V
1000.000 V
100.0000 mV
1.000000 V to
750.000 V
100.0000 Ω
1.000000 k Ω
10.00000 k Ω
100.0000 k Ω
1.000000 M Ω
10.00000 M Ω
100.0000 M Ω
10.00000 mA
100.0000 mA
1.000000 A
3.00000 A
1.000000 A
3.00000 A
100 mV to
750 V
1000.0
Ω
1.0000V
103.6 mm
88.5 mm
Frequency, etc.
3 Hz - 5 Hz
5 Hz - 10 Hz
10 Hz - 20 kHz
20 kHz - 50 kHz
50 kHz - 100 kHz
100 kHz - 300 kHz [6]
3 Hz - 5 Hz
5 Hz - 10 Hz
10 Hz - 20 kHz
20 kHz - 50 kHz
50 kHz - 100 kHz [5]
100 kHz - 300 kHz [6]
1 mA Current Source
1 mA
100 µA
10 µA
5.0 µA
500 nA
500 nA || 10M Ω
<0.1 V Burden Voltage
<0.6 V
<1 V
<2 V
3 Hz - 5 Hz
5 Hz - 10 Hz
10 Hz - 5 kHz
3 Hz - 5 Hz
5 Hz - 10 Hz
10 Hz - 5 kHz
3 Hz - 5 Hz
5 Hz - 10 Hz
10 Hz - 40 Hz
40 Hz - 300 kHz
1mA Test Current
1mA Test Current
374.0 mm
348.3 mm
0.008 + 0.004
0.008 + 0.001
0.008 + 0.001
0.008 + 0.001
0.008 + 0.001
0.020 + 0.001
0.800 + 0.010
0.030 + 0.020
0.030 + 0.005
0.080 + 0.010
0.120 + 0.020
1.00 + 0.04
0.30 + 0.04
0.10 + 0.04
1.10 + 0.06
0.35 + 0.06
0.15 + 0.06
0.10
0.05
0.03
0.01
0.008 + 0.020
0.008 + 0.020
90 Day
23°C ± 5°C
0.0040 + 0.0035
0.0030 + 0.0007
0.0020 + 0.0005
0.0035 + 0.0006
0.0035 + 0.0010
1.00 + 0.04
0.35 + 0.04
0.05 + 0.04
0.11 + 0.05
0.60 + 0.08
4.00 + 0.50
1.00 + 0.03
0.35 + 0.03
0.05 + 0.03
0.11 + 0.05
0.60 + 0.08
4.00 + 0.50
0.0030 + 0.0030
0.0020 + 0.0005
0.0020 + 0.0005
0.0020 + 0.0005
0.002 + 0.001
0.015 + 0.001
0.300 + 0.010
0.005 + 0.010
0.010 + 0.004
0.050 + 0.006
0.100 + 0.020
1.00 + 0.04
0.30 + 0.04
0.10 + 0.04
1.10 + 0.06
0.35 + 0.06
0.15 + 0.06
0.10
0.05
0.03
0.006
0.002 + 0.010
0.002 + 0.010
24 Hour [2]
23°C ± 1°C
0.0030 + 0.0030
0.0020 + 0.0006
0.0015 + 0.0004
0.0020 + 0.0006
0.0020 + 0.0006
1.00 + 0.03
0.35 + 0.03
0.04 + 0.03
0.10 + 0.05
0.55 + 0.08
4.00 + 0.50
1.00 + 0.02
0.35 + 0.02
0.04 + 0.02
0.10 + 0.04
0.55 + 0.08
4.00 + 0.50
[1] Specifications are for 1hr warm-up and 6 1
2 digits, Slow ac filter.
[2] Relative to calibration standards.
[3] 20% over range on all ranges except 1000 Vdc and 750 Vac ranges.
[4] For sinewave input > 5% of range. For inputs from 1% to 5% of range and < 50 kHz, add 0.1% of range additional error.
[5] 750 V range limited to 100 kHz or 8 x107 Volt-Hz.
[6] Typically 30% of reading error at 1 MHz.
[7] Specifications are for 4-wire ohms function or 2-wire ohms using Math Null.
Without Math Null, add 0.2 Ω additional error in 2-wire ohms function.
[8] Input >100 mV. For 10 mV to 100 mV inputs multiply % of reading error x10.
[9] 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.
0.010 + 0.004
0.010 + 0.001
0.010 + 0.001
0.010 + 0.001
0.010 + 0.001
0.040 + 0.001
0.800 + 0.010
0.050 + 0.020
0.050 + 0.005
0.100 + 0.010
0.120 + 0.020
1.00 + 0.04
0.30 + 0.04
0.10 + 0.04
1.10 + 0.06
0.35 + 0.06
0.15 + 0.06
0.10
0.05
0.03
0.01
0.010 + 0.020
0.010 + 0.020
1 Year
23°C ± 5°C
0.0050 + 0.0035
0.0040 + 0.0007
0.0035 + 0.0005
0.0045 + 0.0006
0.0045 + 0.0010
1.00 + 0.04
0.35 + 0.04
0.06 + 0.04
0.12 + 0.04
0.60 + 0.08
4.00 + 0.50
1.00 + 0.03
0.35 + 0.03
0.06 + 0.03
0.12 + 0.04
0.60 + 0.08
4.00 + 0.50
0.0006 + 0.0005
0.0006 + 0.0001
0.0006 + 0.0001
0.0006 + 0.0001
0.0010 + 0.0002
0.0030 + 0.0004
0.1500 + 0.0002
0.002 + 0.0020
0.002 + 0.0005
0.005 + 0.0010
0.005 + 0.0020
0.100 + 0.006
0.035 + 0.006
0.015 + 0.006
0.100 + 0.006
0.035 + 0.006
0.015 + 0.006
0.005
0.005
0.001
0.001
0.001 + 0.002
0.001 + 0.002
Temperature
Coefficient
0°C – 18°C
28°C – 55°C
0.0005 + 0.0005
0.0005 + 0.0001
0.0005 + 0.0001
0.0005 + 0.0001
0.0005 + 0.0001
0.100 + 0.004
0.035 + 0.004
0.005 + 0.004
0.011 + 0.005
0.060 + 0.008
0.20 + 0.02
0.100 + 0.003
0.035 + 0.003
0.005 + 0.003
0.011 + 0.005
0.060 + 0.008
0.20 + 0.02
2
Measurement Characteristics
dc Voltage
Measurement Method:
Continuously Integrating Multi-slope III
A-D Converter
A-D Linearity:
0.0002% of reading + 0.0001% of range
Input Resistance:
10 M
Ω or 0.1V, 1V, 10 V ranges:
Selectable >10,000 M
Ω
100 V, 1000 V ranges:
10 M
Ω ± 1%
Input Bias Current:
< 30pA at 25° C
Input Protection:
1000 V all ranges dcV:dcV Ratio Accuracy:
V input
Accuracy + V reference
Accuracy
True rms ac Voltage
Measurement Method: ac coupled True rms – measures the ac component of the input with up to 400 Vdc of bias on any range
Crest Factor:
Maximum of 5:1 at Full Scale
Additional Crest Factor Errors (non-sinewave):
Crest Factor 1–2: 0.05 % of reading
Crest Factor 2–3: 0.15 % of reading
Crest Factor 3–4: 0.30 % of reading
Crest Factor 4–5: 0.40 % of reading
Input Impedance:
1 M
Ω ± 2% in parallel with 100 pF
Input Protection:
750 Vrms all ranges
Resistance
Measurement Method:
Selectable 4-wire or 2-wire Ohms.
Current source referenced to LO input.
Maximum Lead Resistance (4-wire):
10% of range per lead for 100
Ω and 1kΩ ranges. 1k
Ω per lead on all other ranges.
Input Protection:
1000 V all ranges dc Current
Shunt Resistance:
5
Ω for 10 mA,100 mA; 0.1 Ω for 1 A, 3 A
Input Protection:
Externally accessible 3 A 250 V Fuse
Internal 7 A 250 V Fuse
[1] For 1k Ω unbalance in LO lead.
[2] For power line frequency ± 0.1%.
[3] For power line frequency ± 1% use 40dB or
± 3% use 30dB.
[4] Reading speeds for 60Hz and (50Hz) operation.
[5] Maximum useful limit with default settling delays defeated.
[6] Speeds are for 4 1 and Display OFF.
2 digits, Delay 0, Auto-zero
True rms ac Current
Measurement Method:
Direct coupled to the fuse and shunt. ac coupled True rms measurement
(measures the ac component only).
Shunt Resistance:
0.1
Ω for 1 A and 3 A ranges
Input Protection:
ExternalIy accessible 3 A 250 V Fuse
Internal 7 A 250 V Fuse
Frequency and Period
Measurement Method:
Reciprocal counting technique
Voltage Ranges:
Same as ac Voltage Function
Gate Time:
1 s, 100 ms, or 10 ms.
Continuity / Diode
Response Time:
300 samples/s with audible tone
Continuity Threshold:
Selectable from 1
Ω to 1000 Ω
Measurement Noise Rejection 60 (50) Hz [1] dc CMRR: ac CMRR:
140 dB
70 dB
Integration Time and Normal Mode Rejection [2]
100 plc / 1.67 s (2 s): 60 dB [3]
10 plc / 167 ms (200 ms): 60 dB [3]
1 plc / 16.7 ms (20 ms): 60 dB
<1 plc / 3 ms or 800 µs: 0 dB
Operating Characteristics
Function dcV, dcI, and
Resistance acV, acI
Frequency or
Period
6 1
2
6 1
2
6 1
2
6 1
2
6 1
2
5 1
2
4 1
2
[4]
6 1
2
6 1
2
5 1
2
5 1
2
4 1
2
Digits Readings/s
0.6 (0.5)
6 (5)
60 (50)
300
1000
0.15 Slow (3Hz)
1Medium (20Hz)
10 Fast (200Hz)
50 [5]
1
9.8
80
System Speeds [6]
Configuration Rates: 26/s to 50/s
Autorange Rate (dc Volts): > 30/s
ASCII readings to RS-232: 55/s
ASCII readings to GPIB: 1000/s
Maximum Internal Trig. Rate: 1000/s
Max. Ext.Trig. Rate to Memory: 1000/s
Triggering and Memory
Reading HOLD Sensitivity:
10%, 1%, 0.1%,or 0.01% of range
Samples/ trigger:
1 to 50,000
Trigger Delay:
0 to 3600 s: 10 µs step size
External Trigger Delay:
< 1 ms
External Trigger Jitter:
< 500 µs
Memory:
512 readings
Math Functions
NULL, Min/Max/Average, dBm, dB,
Limit Test (with TTL output)
Standard Programming Languages
SCPI (IEEE-488.2), Agilent 3478A,
Fluke 8840A/42A
Accessories Included
Test Lead Kit with probe, alligator, and grabber attachments.
Operating Manual, Service Manual, test report, and power cord.
General Specifications
Power Supply:
100 V/120 V/220 V/240 V ±10%
Power Line Frequency:
45 Hz to 66 Hz and 360 Hz to 440 Hz
Automatically sensed at power-on
Power Consumption:
25 VA peak (10 W average)
Operating Environment:
Full accuracy for 0° C to 55° C
Full accuracy to 80% R.H. at 40° C
Storage Environment:
– 40° C to 70° C
Weight:
3.6 kg (8.0 Ibs)
Safety:
Designed to CSA, UL-1244, IEC-348
RFI and ESD:
MIL-461C, FTZ 1046, FCC
Vibration and Shock:
MIL-T-28800E, Type III, Class 5 (Sine Only)
Warranty:
1 year
3
Ordering Information
Agilent 34401A Multimeter
Accessories included
Test Lead Kit with probe, alligator, and grabber attachments, operating manual, service manual, calibration certificate, test report, and power cord.
Options
34401A-1CM
Rack Mount Kit* (P/N 5062-3972)
34401A-OBO
DMM without manuals
34401A-A6J
ANSI Z540 compliant calibration
Manual options (please specify one)
34401A-ABA US English
34401A-ABD German
34401A-ABE Spanish
34401A-ABF French
34401A-ABJ Japanese
34401A-ABZ Italian
34401A-AB0 Taiwan Chinese
34401A-AB1 Korean
34401A-AB2 Chinese
34401A-AKT Russian
Agilent Accessories
11059A Kelvin Probe set
11060A Surface Mount Device (SMD) test probes
11062A Kelvin clip set
34131 Hard transit case
34161A Accessory pouch
34171A Input terminal connector
(sold in pairs)
34172A Input calibration short
(sold in pairs)
34330A 30 A current shunt
E2308A 5K thermistor probe
* For racking two side-by-side, order both items below:
Lock link kit (P/N 5061-9694)
Flange kit (P/N 5063-9212)
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Agilent T&M Software and Connectivity
Agilent's Test and Measurement software and connectivity products, solutions and developer network allows you to take time out of connecting your instruments to your computer with tools based on PC standards, so you can focus on your tasks, not on your connections.
Visit www.agilent.com/find/connectivity for more information.
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Agilent Technologies aims to maximize the value you receive, while minimizing your risk and problems.
We strive to ensure that you get the test and measurement capabilities you paid for and obtain the support you need. Our extensive support resources and services can help you choose the right Agilent products for your applications and apply them successfully. Every instrument and system we sell has a global warranty. Two concepts underlie Agilent's overall support policy:
"Our Promise" and "Your Advantage."
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Our Promise means your Agilent test and measurement equipment will meet its advertised performance and functionality. When you are choosing new equipment, we will help you with product information, including realistic performance specifications and practical recommendations from experienced test engineers. When you receive your new Agilent equipment, we can help verify that it works properly, and help with initial product operation.
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Your Advantage means that Agilent offers a wide range of additional expert test and measurement services, which you can purchase according to your unique technical and business needs. Solve problems efficiently and gain a competitive edge by contracting with us for calibration, extra-cost upgrades, out-of-warranty repairs, and onsite education and training, as well as design, system integration, project management, and other professional engineering services. Experienced
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Get assistance with all your test and measurement needs at:
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Agilent's IO Libraries Suite ships with the 34401A to help you quickly establish an error-free connection between your PC and instruments – regardless of the vendor. It provides robust instrument control and works with the software development environment you choose.
For additional description of Agilent's
IO Libraries Suite features and installation requirements, please go to:
www.agilent.com/find/iosuite-datasheet
Product specifications and descriptions in this document subject to change without notice.
© Agilent Technologies, Inc. 1998, 2000, 2005
Printed in the U.S.A. May 1, 2005
5968-0162EN
