Agilent Technologies | User manual | Agilent 3458A Multimeter

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Agilent Technologies | User manual | Agilent 3458A Multimeter | Manualzz

Shatters performance barriers of speed and accuracy!

Agilent 3458A Multimeter

Data Sheet

2

Performance Highlights

dc Volts

• 5 ranges: 0.1 V to 1000 V

• 8.5 to 4.5 digit resolution

• Up to 100,000 readings/sec

(4.5 digits)

• Maximum sensitivity: 10 nV

• 0.6 ppm 24 hour accuracy

• 8 ppm (4 ppm optional) / year voltage reference stability

Ohms

• 9 ranges: 10

Ω to 1 GΩ

• Two-wire and four-wire Ohms with offset compensation

• Up to 50,000 readings/sec

(5.5 digits)

• Maximum Sensitivity: 10 µ

• 2.2 ppm 24 hour accuracy

ac Volts

• 6 ranges: 10 mV to 1000 V

• 1 Hz to 10 MHz bandwidth

• Up to 50 readings/sec with all readings to specified accuracy

• Choice of sampling or analog true rms techniques

• 100 ppm best accuracy

dc Current

• 8 ranges: 100 nA to 1 A

• Up to 1,350 readings /sec

(5.5 digits)

• Maximum sensitivity: 1 pA

• 14 ppm 24 hour accuracy

ac Current

• 5 ranges: 100 µA to 1 A

• 10 Hz to 100 kHz bandwidth

• Up to 50 readings /sec

• 500 ppm 24 hour accuracy

Frequency and Period

• Voltage or current ranges

• Frequency: 1 Hz to 10 MHz

• Period: 100 ns to 1 sec

• 0.01% accuracy

• ac or dc coupled

Maximum Speeds

• 100,000 readings/sec at

4.5 digits (16 bits)

• 50,000 readings/sec at 5.5 digits

• 6,000 readings/sec at 6.5 digits

• 60 readings/sec at 7.5 digits

• 6 readings/sec at 8.5 digits

Measurement Set-Up Speed

• 100,000 readings/sec over

GPIB* or with internal memory

• 110 autoranges/sec

• 340 function or range changes/sec

• Post-processed math from internal memory

Access speed and accuracy through a powerful, convenient front panel.

Display

• Bright, easy-to-read, vacuum flourescent display

• 16 character alpha-numeric display to easily read data, messages, and commands

Standard Function/Range Keys

• Simple to use, for bench measurements of dcV, acV, Ohms, current, frequency and period

• Select autorange or manual ranging

Menu Command Keys

• Immediate access to eight common commands

• Shifted keys allow simple access to complete command menu

Numeric/User Keys

• Numeric entry for constants and measurement parameters

• Shifted keys (f 0 through f 9) access up to ten user-defined setups

Current Measurement Terminals

• Easy fuse replacement with fuse holder built into terminal

Guard Terminal and Switch

• For maximum common mode noise rejection

Volts/Ohms/Ratio Terminals

• Gold-plated tellurium copper for minimum thermal emf

• 2-wire or 4-wire Ohms measurements

• dc /dc or ac /dc ratio inputs

Front-Rear Terminal Switch

• Position selects front or rear measurement terminals

Rear Input Terminals for convenient system use

External Output

• Programmable TTL output pulse with

5 modes for flexible system interface

• Defaults to a voltmeter complete pulse

External Trigger Input

GPIB

Interface

Connector

3

Finally!

Contents

Test System Throughput

High Resolution Digitizing

/

6

Calibration Lab Precision

/

9

/

10

Technical Specifications

/

12

Specs Overview

/

12

Section 1: DC Voltage

/

13

Section 2: Resistance

/

14

Section 3: DC Current

/

16

Section 4: AC Voltage

/

17

Section 5: AC Current

/

22

Section 6: Frequency/ Period

/

23

Section 7: Digitizing

/

24

Section 8: System Specs

/

26

Section 9: Ratio

/

27

Section 10: Math Functions

/

27

Section 11: General Specs

/

28

Section 12: Ordering Information

/

29

Accessories

/

29

Other Meters

/

30

A system multimeter with BOTH high speed and high accuracy.

The Agilent Technologies 3458A

Multimeter shatters long-standing performance barriers of speed and accuracy on the production test floor, in R&D, and in the calibration lab. The 3458A is simply the fastest, most flexible, and most accurate multimeter ever offered by Agilent Technologies.

In your system or on the bench, the 3458A saves you time and money with unprecedented test system throughput and accuracy, seven function measurement flexibility, and low cost of ownership.

Select a reading rate of 100,000 readings per second for maximal test throughput. Or achieve highest levels of precision with up to 8.5 digits of measurement resolution and 0.1 part per million transfer accuracy. Add to this, programming compatibility through the Agilent Multimeter

Language (ML) and the 3458A’s simplicity of operation and you have the ideal multimeter for your most demanding applications.

High test system throughput

Calibration lab precision

High resolution digitizing

The 3458A

Multimeter for:

Faster testing

• Up to 100,000 readings /sec

• Internal test setups > 340/sec

• Programmable integration times from 500 ns to 1 sec

Greater test yield

• More accuracy for tighter test margins

• Up to 8.5 digits resolution

Longer up-time

• Two-source (10 V,10 k

Ω) calibration, including ac

• Self-adjusting, self-verifying auto-calibration for all functions and ranges, including ac

Superb transfer measurements

• 8.5 digits resolution

• 0.1 ppm dc Volts linearity

• 0.1 ppm dc Volts transfer capability

• 0.01 ppm rms internal noise

Extraordinary accuracy

• 0.6 ppm for 24 hours in dc Volts

• 2.2 ppm for 24 hours in Ohms

• 100 ppm mid-band ac Volts

• 8 ppm (4 ppm optional) per year voltage reference stability

Greater waveform resolution and accuracy

• 16 to 24 bits resolution

• 100,000 to 0.2 samples/sec

• 12 MHz bandwidth

• Timing resolution to 10 ns

• Less than 100 ps time jitter

• Over 75,000 reading internal memory

10

5

6

• Faster system start-up

Multimeter Language (ML) compatible

• Faster measurements and setups

100,000 readings/sec in 4.5 digits

50,000 readings/sec in 5.5 digits

340 function or range changes/sec

• Longer system up-time

For High Test System Throughput

The Agilent 3458A System Multimeter heightens test performance in three phases of your production test: faster test system start-up, faster test throughput, and lower cost of ownership through longer system uptime, designed-in reliability, and fast and easy calibration.

Faster system start-up

The value of a fast system multimeter in production test is clear. But it is also important that the dmm programs easily to reduce the learning time for new system applications.

The Agilent Multimeter Language

(ML) offers a standard set of commands for the multimeter user that consists of easily understood, readable commands. Easier programming and clearer documentation reduce system development time.

Faster measurements and setups

Now you can have a system dmm with both fast and accurate measurements. The 3458A optimizes your measurements for the right combination of accuracy, resolution, and speed. The 3458A

Multimeter fits your needs from

4.5 digit dc Volts measurements at 100,000 per second, to 8.5 digit dc Volts measurements at 6 per second, or anywhere in between in 100 ns steps.

Even the traditionally slower measurement functions, such as ac Volts, are quicker with the

3458A. For example, you can measure true rms acV at up to

50 readings per second with full accuracy for input frequencies greater than 10 kHz.

Besides high reading rates, the

3458A’s design was tuned for the many function and level changes required in testing your device. The

3458A can change function and range, take a measurement, and output the result at 340 per second.

This is at least 5 times faster than other dmms. In addition, the 3458A transfers high speed measurement data over GPIB or into and out of its 75,000 reading memory at

100,000 readings per second.

You can reduce your data transfer overhead by using the unique nonvolatile Program Memory of the

3458A to store complete measurement sequences. These test sequences can be programmed and initiated from the front panel for stand-alone operation without a controller.

Finally, the 3458A Multimeter makes fast and accurate measurements. Consider the 3458A’s

0.6 ppm 24 hour dc Volts accuracy,

100 ppm ac Volts accuracy and its standard functions of dcV, acV, dcI, acI, Ohms, frequency and period.

Greater measurement accuracy from your dmm means higher confidence and higher test yields.

More functions mean greater versatility and lower-cost test systems.

Longer system up-time

The 3458A Multimeter performs a complete self-calibration of all functions, including ac, using high stability internal standards. This self- or auto-calibration eliminates measurement errors due to time drift and temperature changes in your rack or on your bench for superior accuracy. When it’s time for periodic calibration to external standards, simply connect a precision 10 Vdc source and a precision 10 k

Ω resistor. All ranges and functions, including ac, are automatically calibrated using precision internal ratio transfer measurements relative to the external standards.

The 3458A’s reliability is a product of Agilent’s “10 X” program of defect reduction. Through extensive environmental, abuse, and stress testing during the design stages of product development, has reduced the number of defects and early failures in its instruments by a factor of ten over the past ten years. Our confidence in the

3458A’s reliability is reflected in the low cost of the option for two additional years of return-to-repair.

This option (W30), when combined with the standard one-year warranty, will give you three years of worry-free operation.

7

8

• 8.5 digits resolution

• 0.1 ppm dcV linearity

• 100 ppm acV absolute accuracy

• 4 ppm/year optional stability

For Calibration Lab Precision

In the calibration lab, you’ll find the 3458A’s 8.5 digits to have extraordinary linearity, low internal noise, and excellent short term stability. The linearity of the

3458A’s Multislope A to D converter has been characterized with state-of-the-art precision. Using

Josephsen Junction Array intrinsic standards, linearity has been measured within ± 0.05 ppm of 10 Volts.

The 3458A’s transfer accuracy for

10 Volts dc is 0.1 ppm over

1 hour ± 0.5°C. Internal noise has been reduced to less than 0.01 ppm rms yielding 8.5 digits of usable resolution. So, the right choice for your calibration standard dmm is the 3458A.

dcV stability

The long term accuracy of the

3458A is a remarkable 8 ppm per year — more accurate than many system dmms are after only a day.

Option 002 gives you a higher stability voltage reference specified to 4 ppm / year for the ultimate performance.

Reduced-error resistance

The 3458A doesn’t stop with accurate dcV. Similar measurement accuracy is achieved for resistance, acV, and current. You can measure resistance from

10 µ

Ω to 1GΩ with midrange accuracy of 2.2 ppm.

Finally, the 3458A, like its dmm predecessors, offers offset-compensated Ohms on the

10

Ω to 100 kΩ ranges to eliminate the errors introduced by small series voltage offsets. Usable for both two- and four-wire ohms, the

3458A supplies a current through the unknown resistance, measures the voltage drop, sets the current to zero, and measures the voltage drop again. The result is reduced error for resistance measurements.

Precision acV

The 3458A introduces new heights of true rms ac volts performance with a choice of traditional analog or a new sampling technique for higher accuracy. For calibration sources and periodic waveforms from 1 Hz to 10 MHz, the 3458A’s precision sampling technique offers extraordinary accuracy.

With 100 ppm absolute accuracy for 45 Hz to 1 kHz or 170 ppm absolute accuracy to 20 kHz, the

3458A will enhance your measurement capabilities. Accuracy is maintained for up to 2 years with only a single 10 Volt dc precision standard. No ac standards are necessary. For higher speed and less accuracy, the analog true rms ac technique has a midband absolute measurement accuracy of 300 ppm using the same simple calibration procedure. With a bandwidth of

10 Hz to 2 MHz and reading rates to 50 /second, the analog technique is an excellent choice for high throughput computer-aided testing.

Easy calibration

The 3458A gives you low cost of ownership with a simple, twosource electronic calibration. With its superior linearity, the 3458A is fully calibrated, including ac, from a precision 10 V dc source and a precision 10 k

Ω resistor. All ranges and functions are automatically calibrated using precise internal ratio transfer measurements relative to these external standards. In addition, the 3458A’s internal voltage standard and resistance standard are calibrated. Now you can perform a self-verifying, self- or auto-calibration relative to the

3458A’s low drift internal standards at any time with the ACAL command. So, if your dmm’s environment changes, auto-calibration optimizes your measurement accuracy.

Calibration security

Unlike other dmms, the 3458A goes to great lengths to assure calibration security. First, a password security code “locks” calibration values and the self-calibration function. Next, you can easily store and recall a secured message for noting items, such as calibration date and due date. Plus, the

3458A automatically increments a calibration counter each time you

“unlock” the dmm— another safeguard against calibration tampering. If you have a unique situation or desire ultimate security, use the internal dmm hardwired switch to force removal of the instrument covers to perform calibration.

9

• 16 bits at 100,000 samples/sec

• Effective rates to 100 Msamples/sec

• Signal bandwidth of 12 MHz

• 10 ns timing with <100 ps jitter

For High Resolution Digitizing

Easily acquire waveforms

Simple, application-oriented commands in the Agilent Multimeter

Language (ML) make the task of waveform digitizing as easy as measuring dcV. Simply specify the sweep rate and number of samples.

Integration or track-and-hold paths

The 3458A gives you the choice of two configurations for high speed measurements: a 150 kHz bandwidth integrating path with a variable aperture from 500 ns to 1 second or a 12 MHz bandwidth path with a fixed 2 ns aperture and

16-bit track-and-hold. Use the integration path for lower noise, but use the track-and-hold path to precisely capture the voltage at a single point on a waveform.

Direct sampling function

The 3458A has two sampling functions for digitizing wave-forms: direct sampling and sequential or sub-sampling. With direct sampling, the 3458A samples through the 12 MHz path followed by the

2 ns track-and-hold providing

16 bits of resolution. The maximum sample rate is 50,000 sample s / second or 20 µs between samples.

Samples can be internally paced by a 0.01% accurate timebase with time increments in 100 ns steps.

Data transfers directly to your computer at full speed or into the dmm’s internal reading memory.

Waveform reconstruction consists of simply plotting the digitized voltage readings versus the sampling interval of the timebase.

Sequential sampling function

Sequential or sub-sampling uses the same measurement path as direct sampling; however sequential sampling requires a periodic input signal. The 3458A will synchronize to a trigger point on the waveform set by a level threshold or external trigger. Once synchronized, the dmm automatically acquires the waveform through digitizing successive periods with time increment steps as small as

10 ns, effectively digitizing at rates up to 100 Msamples/second. All you specify is the effective timebase and the number of samples desired, the 3458A automatically optimizes its sampling to acquire the waveform in the least amount of time. Then, for your ease of use, the 3458A automatically re-orders the data in internal memory to reconstruct the waveform.

10

Digitizing Configurations

11

12

3458A Technical Specifications

Section 1: DC Voltage 13

Section 2: Resistance 14

Section 3: DC Current 16

Section 4: AC Voltage 17

Section 5: AC Current 22

Section 6: Frequency/Period 23

Section 7: Digitizing 24

Section 8: System Specifications 26

Section 9: Ratio 27

Section 10: Math Functions 27

Section 11: General Specifications 28

Section 12: Ordering Information 29

Introduction

The Agilent 3458A accuracy is specified as a part per million (ppm) of the reading plus a ppm of range for dcV, Ohms, and dcI. In acV and acI, the specification is percent of reading plus percent of range.

Range means the name of the scale, e.g. 1 V, 10 V, etc.; range does not mean the full scale reading, e.g. 1.2 V, 12 V, etc. These accuracies are valid for a specific time from the last calibration.

Absolute versus Relative Accuracy

All 3458A accuracy specifications are relative to the calibration standards. Absolute accuracy of the

3458A is determined by adding these relative accuracies to the traceability of your calibration standard. For dcV, 2 ppm is the traceability error from the factory. That means that the absolute error relative to the U.S. National Institute of Standards and

Technology (NIST) is 2 ppm in addition to the dcV accuracy specifications. When you recalibrate the

3458A, your actual traceability error will depend upon the errors from your calibration standards.

These errors will likely be different from the error of 2ppm.

EXAMPLE 1:

Relative Accuracy; 24 hour operating

temperature is Tcal ±1°C

Assume that the ambient temperature for the measurement is within ±1°C of the temperature of calibration (Tcal). The 24 hour accuracy specification for a 10 V dc measurement on the 10 V range is

0.5 ppm + 0.05 ppm. That accuracy specification means:

0.5 ppm of Reading + 0.05 ppm of Range

For relative accuracy, the error associated with the measurement is:

(0.5 / 1,000,000 x 10 V) + (0.05 / 1,000,000 x 10 V) =

± 5.5 µV or 0.55 ppm of 10 V

Errors from temperature changes

The optimum technical specifications of the

3458A are based on auto-calibration (ACAL) of the instrument within the previous 24 hours and following ambient temperature changes of less than

±1°C. The 3458A’s ACAL capability corrects for measurement errors resulting from the drift of critical components from time and temperature.

The following examples illustrate the error correction of auto-calibration by computing the relative measurement error of the 3458A for various temperature conditions. Constant conditions for each example are:

10 V DC input

10 V DC range

Tcal = 23°C

90 day accuracy specifications

EXAMPLE 2:

Operating temperature is 28°C; with ACAL

This example shows basic accuracy of the 3458A using auto-calibration with an operating temperature of 28°C. Results are rounded to 2 digits.

(4.1 ppm x 10V) + (0.05 ppm x 10V) = 42 µV

Total relative error = 42 µV

EXAMPLE 3:

Operating temperature is 38°C; without ACAL

The operating temperature of the 3458A is 38°C,

14°C beyond the range of Tcal ±1°C. Additional measurement errors result because of the added temperature coefficient without using ACAL.

(4.1 ppm x 10 V) + (0.05 ppm x 10 V) = 42 µV

Temperature Coefficient (specification is per °C):

(0.5 ppm x 10 V + 0.01 ppm x 10 V) x 14°C = 71µV

Total error =113µV

EXAMPLE 4:

Operating temperature is 38°C; with ACAL

Assuming the same conditions as Example 3, but using ACAL significantly reduces the error due to temperature difference from calibration temperature. Operating temperature is 10°C beyond the standard range of Tcal ±5°C.

(4.1 ppm x 10V) + (0.05 ppm x 10V) = 42µV

Temperature Coefficient (specification is per °C):

(0.15 ppm x 10V + 0.01 ppm x 10V) x 10°C = 16µV

Total error = 58µV

Example 5:

Absolute Accuracy; 90 Day

Assuming the same conditions as Example 4, but now add the traceability error to establish absolute accuracy.

(4.1 ppm x 10 V) + (0.05 ppm x 10 V) = 42 µV

Temperature Coefficient (specification is per °C):

(0.15 ppm x 10 V + 0.01 ppm x 10 V) x 10°C = 16 µV factory traceability error of 2 ppm:

(2 ppm x 10 V) = 20 µV

Total absolute error = 78 µV

Additional errors

When the 3458A is operated at power line cycles below 100, additional errors due to noise and gain become significant. Example 6 illustrates the error correction at 0.1 PLC.

Example 6: Operating temperature is 28°C; 0.1 PLC

Assuming the same conditions as Example 2, but now add additional error.

(4.1 ppm x 10 V) + (0.05 ppm x 10 V) = 42 µV

Referring to the Additional Errors chart and RMS

Noise Multiplier table, additional error at 0.1 PLC is:

(2 ppm x 10 V) + (0.4 ppm x 1 x 3 x 10 V) = 32 µV

Total relative error = 74 µV

Section 1 / DC Voltage

100 mV

1 V

10 V

100 V

1000 V

DC Voltage

Range Full Scale

120.00000

1.20000000

12.0000000

120.000000

1050.00000

Maximum

Resolution

10 nV

10 nV

100 nV

1 µV

10 µV

Input

Impedance

> 10 G Ω

> 10 G Ω

> 10 G Ω

10 M Ω ± 1%

10 M Ω ± 1%

Temperature Coefficient

(ppm of Reading + ppm of Range) / °C

Without ACAL

1

With ACAL

2

1.2 + 1 0.15 + 1

1.2 + 0.1

0.5 + 0.01

0.15 + 0.1

0.15 + 0.01

2 + 0.4

2 + 0.04

0.15 + 0.1

0.15 + 0.01

Range

100 mV

1 V

10 V

100 V

1000 V

6

Accuracy 3

[ppm of Reading (ppm of Reading for Option 002) + ppm of Range]

24 Hour 4

2.5 + 3

1.5 + 0.3

0.5 + 0.05

2.5 + 0.3

2.5 + 0.1

90 Day 5

5.0 (3.5) + 3

4.6 (3.1) + 0.3

4.1 (2.6) + 0.05

6.0 (4.5) + 0.3

6.0 (4.5) + 0.1

1 Year 5

9 (5) + 3

8 (4 )+ 0.3

8 (4) + 0.05

10 (6)+ 0.3

10 (6) + 0.1

2 Year 5

14 (10) + 3

14 (10) + 0.3

14 (10) + 0.05

14 (10) + 0.3

14 (10) + 0.1

Range

100 mV

1 V

10 V

100 V

1000 V

Transfer Accuracy/Linearity

10 Min, Tref ± 0.5°C

(ppm of Reading + ppm of Range)

0.5 + 0.5

0.3 + 0.1

0.05 + 0.05

0.5 + 0.1

1.5 + 0.05

Conditions

• Following 4 hour warm-up. Full scale to 10% of full scale.

• Measurements on the 1000 V range are within 5% of the initial measurement value and following measurement settling.

• Tref is the starting ambient temperature.

• Measurements are made on a fixed range (> 4 min.) using accepted metrology practices.

Settling Characteristics

For first reading or range change error, add 0.0001% of input voltage step additional error.

Reading settling times are affected by source impedance and cable dielectric absorption characteristics.

Additional Errors Noise Rejection (dB) 7

NPLC < 1

NPLC

1

NPLC

10

NPLC

100

NPLC = 1000

AC NMR

8

0

60

60

60

75

AC ECMR

90

150

150

160

170

DC ECMR

140

140

140

140

140

*RMS Noise

Range Multiplier

0.1V

x20

1V

10V x2 x1

100V

1000V x2 x1

For RMS noise error, multiply RMS noise result from graph by multiplier in chart.

For peak noise error, multiply RMS noise error by 3.

1 Additional error from Tcal or last

ACAL ± 1°C .

2 Additional error from Tcal ± 5°C.

3 Specifications are for PRESET;

NPLC 100.

4 For fixed range (> 4 min.), MATH NULL and Tcal ± 1°C.

5 Specifications for 90 day, 1 year and 2 year are within 24 hours and ± 1° C of last ACAL; Tcal ±5 °C; MATH NULL and fixed range.

ppm of Reading specifications for

High Stability (Option 002) are in parentheses.

Without MATH NULL, add 0.15 ppm of

Range to 10 V, 0.7 ppm of Range to 1 V, and 7ppm of Range to 0.1V. Without math null and for fixed range less than 4 minutes, add 0.25 ppm of Range to 10 V, 1.7 ppm of Range to 1 V and

17 ppm of Range to 0.1 V.

Add 2 ppm of reading additional error for factory traceability to US NIST.

Traceability error is the absolute error relative to National Standards associated with the source of last external calibration.

6 Add 12 ppm X (Vin / 1000)

2 error for inputs > 100 V.

additional

7 Applies for 1 k Ω unbalance in the LO lead and ± 0.1% of the line frequency currently set for LFREQ.

8 For line frequency ± 1%, ACNMR is

40 dB for NPLC ≥ 1, or 55 dB for NPLC

100. For line frequency ± 5%,

ACNMR is 30 dB for NPLC ≥ 100.

13

Section 1 / DC Voltage

Reading Rate

(Auto-Zero Off)

Temperature Coefficient

(Auto-Zero Off)

For a stable environment ± 1°C add the following additional error for AZERO OFF

Range Error

100 mV - 10 V

100 V - 1000 V

5 µV/°C

500 µV/°C

Selected Reading Rates 1

1

0.1

10

100

1000

NPLC

0.0001

0.0006

0.01

Aperture

1.4 µs

10 µs

167 µs 2

1.67 ms 2

16.6 ms 2

0.166 s 2

6.5

7.5

8.5

8.5

8.5

Digits

4.5

5.5

6.5

28

28

21

25

28

Bits

16

18

21

Readings / Sec

A-Zero Off A-Zero On

100,000

3

4,130

50,000

5,300

3,150

930

592

60

6

36 / min

3.6 / min

3

245

29.4

18 / min

1.8 / min

1 For PRESET;DELAY 0; DISP OFF; OFOR-

MAT DINT; ARANGE OFF.

2 Aperture is selected independent of line frequency (LFREQ). These apertures are for 60 Hz NPLC values where

1 NPLC = 1 / LFREQ. For 50 Hz and

NPLC indicated, aperture will increase by 1.2 and reading rates will decrease by 0.833.

3 For OFORMAT SINT.

4 >10

10 Ω LO to Guard with guard open.

5 >10

12 Ω Guard to Earth.

Maximum Input

HI to LO

LO to Guard

4

Guard to Earth

5

Rated Input

± 1000 V pk

± 200 V pk

± 500 V pk

Input Terminals

Terminal Material: Gold-plated Tellurium Copper

Input Leakage Current: <20 pA at 25°C

Non-Destructive

± 1200 V pk

± 350 V pk

± 1000 V pk

14

Section 2 / Resistance

Two-wire and Four-wire Ohms

(OHM and OHMF Functions)

Range Full Scale

Maximum

Resolution

Current 4

Source

Test

Voltage

10 Ω

100 Ω

1 k Ω

10 k Ω

100 k Ω

1 M Ω

10 M Ω

100 M Ω 7

1G Ω 7

12.00000

120.00000

1.2000000

12.000000

120.00000

1.2000000

12.000000

120.00000

1.2000000

10 µ Ω

10 µ Ω

100 µ Ω

1 m Ω

10 m Ω

100 m Ω

1 Ω

10 Ω

100 Ω

10 mA

1 mA

1 mA

100 µA

50 µA

5 µA

500 nA

500 nA

500 nA

5.0 V

5.0 V

5.0 V

5.0 V

5.0 V

0.1 V

0.1 V

1.0 V

1.0 V

12 V

12 V

12 V

5 V

5 V

12 V

12 V

12 V

12 V

Open

Circuit

Maximum

Lead Resistance

(OHMF)

20 Ω

200 Ω

150 Ω

1.5 k Ω

1.5 k Ω

1.5 k Ω

1.5 k Ω

1.5 k Ω

1.5 k Ω

Maximum

Series Offset

(OCOMP ON)

0.01 V

0.01 V

0.1 V

0.1 V

0.5 V

Temperature Coefficient

(ppm of Reading + ppm of Range) / °C

Without ACAL

5

With ACAL

6

3 + 1

3 + 1

3 + 0.1

3 + 0.1

3 + 0.1

3 + 1

20 + 20

100 + 20

1000 + 20

1 + 1

1 + 1

1 + 0.1

1 + 0.1

1 + 0.1

1 + 1

5 + 2

25 + 2

250 + 2

4 Current source is ± 3% absolute accuracy.

5 Additional error from Tcal or last

ACAL ± 1° C.

6 Additional error from Tcal ± 5 ° C.

7 Measurement is computed from

10 M Ω in parallel with input.

Section 2 / Resistance

Accuracy

1

(ppm of Reading + ppm of Range)

24 Hour 2 Range

10

100

1 k

10 k

100 k

1 M

10 M

100 M

1 G

5 + 3

3 + 3

2 + 0.2

2 + 0.2

2 + 0.2

10 + 1

50 + 5

500 + 10

0.5% + 10

90 Day 3

15 + 5

10 + 5

8 + 0.5

8 + 0.5

8 + 0.5

12 + 2

50 + 10

500 + 10

0.5% + 10

1 Year 3

15 + 5

12 + 5

10 + 0.5

10 + 0.5

10 + 0.5

15 + 2

50 + 10

500 + 10

0.5% + 10

Two-Wire Ohms Accuracy

For Two-Wire Ohms ( OHM ) accuracy, add the following offset errors to the Four-Wire Ohms ( OHMF ) accuracy.

24 Hour: 50 m Ω. 90 Day: 150 mΩ. 1 Year: 250 mΩ. 2 Year: 500 mΩ

2 Year

3

20 + 10

20 + 10

15 + 1

15 + 1

15 + 1

20 + 4

75 + 10

0.1% + 10

1% + 10

1 Specifications are for PRESET;

NPLC 100; OCOMP ON; OHMF.

2 Tcal ± 1°C.

3 Specifications for 90 day, 1 year, and

2 year are within 24 hours and ± 1°C of last ACAL; Tcal ± 5°C.

Add 3 ppm of reading additional error for factory traceability of 10 k Ω to US

NIST. Traceability is the absolute error relative to National Standards associated with the source of last external calibration.

Additional Errors Selected Reading Rates 4

NPLC

5

1

10

100

0.0001

0.0006

0.01

0.1

Aperture

1.4 µs

10 µs

167 µs

6

1.66 ms

6

16.6 ms

6

0.166 s

6

Digits

7.5

7.5

7.5

4.5

5.5

6.5

6.5

Readings / Sec

Auto-Zero Off Auto-Zero On

100,000 7

50,000

5,300

592

60

6

36 / min

4,130

3,150

930

245

29.4

3

18 / min

*RMS Noise

Range Multiplier

10 Ω & 100 Ω

1k Ω to 100 kΩ

1 M Ω

10 M Ω

100 M Ω

1 G Ω x10 x1 x1.5

x2 x120 x1200

Settling Characteristics

For RMS noise error, multiply

RMS noise result from graph by multiplier in chart. For peak noise error, multiply

RMS noise error by 3.

For first reading error following range change, add the total 90 day measurement error for the current range. Preprogrammed settling delay times are for

<200 pF external circuit capacitance.

Measurement Consideration

Agilent recommends the use of Teflon* cable or other high impedance, low dielectric absorption cable for these measurements.

Maximum Input

HI to LO

HI & LO Sense to LO

LO to Guard

Guard to Earth

± 1000 V pk

± 200 V pk

± 200 V pk

± 500 V pk

Rated Input Non-Destructive

± 1000 V pk

± 350 V pk

± 350 V pk

± 1000 V pk

Temperature Coefficient

(Auto-Zero Off)

For a stable environment ± 1°C add the following error for AZERO OFF. (ppm of Range) / °C

Range

10 Ω

100 Ω

1 k Ω

10 k Ω

100 k Ω 1

5

50

5

Error

50

Range

1 M Ω

10 M Ω

100 M Ω

1 G Ω

Error

1

1

10

100

4

5

6

7

For PRESET; DELAY 0; DISP OFF;

OFORMAT DINT; ARANGE OFF.

For OHMF or OCOMP ON, the maximum reading rates will be slower.

Ohms measurements at rates

< NPLC 1 are subject to potential noise pickup. Care must be taken to provide adequate shielding and guarding to maintain measurement accuracies .

Aperture is selected independent of line frequency (LFREQ). These apertures are for 60 Hz NPLC values where 1 NPLC = 1 / LFREQ.

For 50 Hz and NPLC indicated, aperture will increase by 1.2 and reading rates will decrease by

0.833.

For OFORMAT SINT.

* Teflon is a registered trademark of E.I. duPont deNemours and Co.

15

16

Section 3 / DC Current

DC Current

(DCI Function)

Range Full Scale

100 nA

1 µA

10 µA

100 µA

1 mA

10 mA

100 mA

1 A

120.000

1.200000

12.000000

120.00000

1.2000000

12.000000

120.00000

1.0500000

Range

100 nA 6

1 µA 6

10 µA 6

100 µA

1 mA

10 mA

100 mA

1 A

Accuracy 3

(ppm Reading + ppm Range)

24 Hour

4

10 + 400

10 + 40

10 + 7

10 + 6

10 + 4

10 + 4

25 + 4

100 + 10

1 pA

1 pA

1 pA

10 pA

100 pA

1 nA

10 nA

100 nA

Settling Characteristics

For first reading or range change error, add .001% of input current step additional error. Reading settling times can be affected by source impedance and cable dielectric absorption characteristics.

545.2 k

45.2 k

5.2 k

730

100

10

1

0.1

Additional Errors

Maximum

Resolution

Shunt

Resistance

Burden

Voltage

0.055 V

0.045 V

0.055 V

0.075 V

0.100 V

0.100 V

0.250 V

<1.5 V

Temperature Coefficient

(ppm of Reading + ppm of Range) / ° C

Without ACAL

1

With ACAL

2

10 + 200 2 + 50

2 + 20

10 + 4

2 + 5

2 + 1

10 + 3

10 + 2

10 + 2

25 + 2

25 + 3

2 + 1

2 + 1

2 + 1

2 + 1

2 + 2

90 Day

5

30 + 400

15 + 40

15 + 10

15 + 8

15 + 5

15 + 5

30 + 5

100 + 10

1 Year

5

30 + 400

20 + 40

20 + 10

20 + 8

20 + 5

20 + 5

35 + 5

110 + 10

2 Year

5

35 + 400

25 + 40

25 + 10

25 + 8

25 + 5

25 + 5

40 + 5

115 + 10

Measurement Considerations

Agilent recommends the use of Teflon cable or other high impedance, low dielectric absorption cable for low current measurements. Current measurements at rates < NPLC 1 are subject to potential noise pickup.

Care must be taken to provide adequate shielding and guarding to maintain measurement accuracies.

1 Additional error from Tcal or last ACAL ± 1° C .

2 Additional error from Tcal ± 5°C.

3 Specifications are for PRESET;

NPLC 100.

4 Tcal ± 1° C.

5 Specifications for 90 day, 1 year, and 2 year are within 24 hours and ± 1° C of last

ACAL; Tcal ± 5° C.

Add 5 ppm of reading additional error for factory traceability to US NIST. Traceability error is the sum of the 10 V and 10 k

Ω traceability values.

6 Typical accuracy.

NPLC

1

10

100

0.0001

0.0006

0.01

0.1

Selected Reading Rates 7

Aperture

1.4 µs

10 µs

167 µs 8

1.67 ms 8

16.6 ms 8

0.166 s 8

Digits

7.5

7.5

7.5

4.5

5.5

6.5

6.5

Readings / Sec

2,300

1,350

157

108

26

3

18 / min

7 For PRESET; DELAY 0; DISP OFF; OFORMAT

DINT; ARANGE OFF.

8 Aperture is selected independent of line frequency (LFREQ). These apertures are for 60 Hz NPLC values where

1 NPLC = 1 / LFREQ. For 50 Hz and NPLC indicated, aperture will increase by 1.2

and reading rates will decrease by 0.833.

*RMS Noise

Range

100 nA

1 µA

10 µA to 1 A

Multiplier x100 x10 x1

For RMS noise error, multiply RMS noise result from graph by multiplier in chart.

For peak noise error, multiply RMS noise error by 3.

Maximum Input

I to LO

LO to Guard

Guard to Earth

Rated Input

± 1.5 A pk

± 200 V pk

± 500 V pk

Non-Destructive

< 1.25 A rms

± 350 V pk

± 1000 V pk

Section 4 / AC Voltage

General Information

The Agilent 3458A supports three techniques for measuring true rms AC voltage, each offering unique capabilities. The desired measurement technique is selected through the SETACV command. The ACV functions will then apply the chosen method for subsequent measurements.

The following section provides a brief description of the three operation modes along with a summary table helpful in choosing the technique best suited to your specific measurement need.

SETACV SYNC Synchronously Sub-sampled Computed true rms technique.

This technique provides excellent linearity and the most accurate measurement results. It does require that the input signal be repetitive ( not random noise for example ). The bandwidth in this mode is from 1 Hz to 10 MHz.

SETACV ANA Analog Computing true rms conversion technique.

This is the measurement technique at power-up or following an instrument reset. This mode works well with any signal within its 10 Hz to 2 MHz bandwidth and provides the fastest measurement speeds.

SETACV RNDM Random Sampled Computed true rms technique.

This technique again provides excellent linearity, however the overall accuracy is the lowest of the three modes. It does not require a repetitive input signal and is therefore well suited to wideband noise measurements. The bandwidth in this mode is from 20 Hz to 10 MHz.

Selection Table

Technique

Synchronous Sub-sampled

Frequency Range

1 Hz - 10 MHz

Best

Accuracy

0.010%

Repetitive

Signal Required

Yes

Readings / Sec

Minimum Maximum

0.025

10

Analog

Random Sampled

10 Hz - 2 MHz

20 Hz - 10 MHz

0.03%

0.1%

No

No

0.8

0.025

50

45

Synchronous Sub-sampled Mode

(ACV Function, SETACV SYNC)

Range

10 mV

100 mV

1 V

10 V

100 V

1000 V

Full Scale

12.00000

120.00000

1.2000000

12.000000

120.00000

700.0000

AC Accuracy 2

24 Hour to 2 Year (% of Reading + % of Range)

Maximum Resolution

10 nV

10 nV

100 nV

1 µV

10 µV

100 µV

Range

10 mV

100 mV - 10 V

100 V

1000 V

1 Hz to 3

40 Hz

0.03 + 0.03

0.007 + 0.004

0.02 + 0.004

0.04+ 0.004

40 Hz to 3

1 kHz

0.02 + 0.011

0.007 + 0.002

0.02 + 0.002

0.04 + 0.002

Input Impedance

1 M

Ω ± 15% with <140pF

1 M

Ω ± 15% with <140pF

1 M

Ω ± 15% with <140pF

1 M

Ω ± 2% with <140pF

1 M

Ω ± 2% with <140pF

1 M

Ω ± 2% with <140pF

Temperature Coefficient

1

(% of Reading + % of Range) / °C

0.002 + 0.02

0.001 + 0.0001

0.001 + 0.0001

0.001 + 0.0001

0.001 + 0.0001

0.001 + 0.0001

1 kHz to 3

20 kHz

0.03 + 0.011

0.014 + 0.002

0.02 + 0.002

0.06 + 0.002

ACBAND

2MHz

20 kHz to 3

50 kHz

50 kHz to

100 kHz

0.1 + 0.011

0.03 + 0.002

0.5 + 0.011

0.08 + 0.002

0.035 + 0.002

0.12 + 0.002

0.12 + 0.002

0.3 + 0.002

100 kHz to

300 kHz

4.0 + 0.02

0.3 + 0.01

0.4 + 0.01

1 Additional error beyond ± 1°C, but within

+ 5°C of last ACAL.

For ACBAND > 2MHz, use 10 mV range temperature coefficient for all ranges.

2 Specifications apply full scale to 10% of full scale, DC < 10% of AC, sine wave input, crest factor = 1.4, and PRESET.

Within 24 hours and ± 1° C of last ACAL.

Lo to Guard Switch on..

Peak (AC + DC) input limited to 5 x full scale for all ranges in ACV function.

Add 2 ppm of reading additional error for factory traceability of 10 V DC to US NIST.

3 LFILTER ON recommended.

300 kHz to

1 MHz

1 + 0.01

1.5 + 0.01

1 MHz to

2 MHz

1.5 + 0.01

AC Accuracy continued on following page.

17

18

Section 4 / AC Voltage

AC Accuracy continued: 24 Hour to 2 Year (% of Reading + % of Range)

Range

45 Hz to

100 kHz

100 kHz to

1 MHz

10 mV 0.09 + 0.06

1.2 + 0.05

100 mV - 10 V 0.09 + 0.06

2.0 + 0.05

100 V

1000 V

0.12 + 0.002

0.3 + 0.01

ACBAND >2 MHz

1 MHz to

4 MHz

7 + 0.07

4 + 0.07

4 MHz to

8 MHz

20 +0.08

4 + 0.08

Transfer Accuracy

Range

100 mV - 100 V

% of Reading

(0.002 + Resolution in %)

1

8 MHz to

10 MHz

15 + 0.1

Conditions

• Following 4 Hour warm-up

• Within 10 min and ±0.5°C of the reference measurement

• 45 Hz to 20 kHz, sine wave input

• Within ±10% of the reference voltage and frequency

AC + DC Accuracy

(ACDCV Function)

For ACDCV Accuracy apply the following additional error to the ACV accuracy. (% of Range)

DC <10% of AC Voltage

Range ACBAND ≤ 2MHz

10 mV 0.09

100 mV - 1000 V 0.008

ACBAND > 2MHz

0.09

0.09

Temperature Coefficient

2

0.03

0.0025

DC >10% of AC Voltage

Range ACBAND

2MHz

10 mV 0.7

100 mV - 1000 V 0.07

ACBAND > 2MHz

0.7

0.7

Temperature Coefficient

2

0.18

0.025

Additional Errors

Apply the following additional errors as appropriate to your particular measurement setup. (% of Reading)

Source R

0

50

Terminated

75

Terminated

50

0 - 1 MHz

0

0.003

0.004

0.005

Input Frequency

3

1 - 4 MHz 4 - 8 MHz 8 - 10 MHz

2 5 5

0

2

3

0

5

7

0

5

10

Crest Factor

1 - 2

2 - 3

3 - 4

4 - 5

Resolution Multiplier

1

(Resolution in %) x 1

(Resolution in %) x 2

(Resolution in %) x 3

(Resolution in %) x 5

Reading Rates 4

ACBAND Low

1 - 5 Hz

5 - 20 Hz

20 - 100 Hz

100 - 500 Hz

> 500 Hz

Maximum Sec / Reading

6.5

2.0

1.2

0.32

0.02

% Resolution

0.001 - 0.005

0.005 - 0.01

0.01 - 0.05

0.05 - 0.1

0.1 - 1

> 1

Maximum Sec / Reading

32

6.5

3.2

0.64

0.32

0.1

Settling Characteristics

There is no instrument settling required.

Common Mode Rejection

For 1 k Ω imbalance in LO lead, > 90 dB, DC to 60 Hz.

1 Resolution in % is the value of RES command or parameter (reading resolution as percentage of measurement range).

2 Additional error beyond ± 1°C, but within

± 5°C of last ACAL. (% of Range) / °C. For

ACBAND >2MHz,use 10mV range temperature coefficient. Lo to Guard switch on.

3 Flatness error including instrument loading.

4 Reading time is the sum of the

Sec / Reading shown for your configuration. The tables will yield the slowest reading rate for your configuration. Actual reading rates may be faster. For DELAY-1; ARANGE OFF.

Maximum Input

HI to LO

LO to Guard

Guard to Earth

Volt - Hz Product

Rated Input

± 1000 V pk

± 200 V pk

± 500 V pk

1x10 8

Non-Destructive

± 1200 V pk

± 350 V pk

± 1000 V pk

Section 4 / AC Voltage

High Frequency Temperature Coefficient

For outside Tcal ±5°C add the following error.

(% of Reading) / °C

Frequency

Range

10 mV - 1 V

2 - 4 MHz

0.02

4 - 10 MHz

0.08

10 V - 1000 V 0.08 0.08

Analog Mode

(ACV Function, SETACV ANA)

Range

10 mV

100 mV

1 V

10 V

100 V

1000 V

Full Scale

12.00000

120.0000

1.200000

12.00000

120.0000

700.000

Maximum Resolution

10 nV

100 nV

1 µV

10 µV

100 µV

1 mV

Input Impedance

1 M Ω ± 15% with < 140pF

1 M Ω ± 15% with < 140pF

1 M Ω ± 15% with < 140pF

1 M Ω ± 2% with < 140pF

1 M Ω ± 2% with < 140pF

1 M Ω ± 2% with < 140pF

Temperature Coefficient

1

(% of Reading+ % of Range) / °C

0.003 + 0.006

0.002 + 0.0

0.002 + 0.0

0.002 + 0.0

0.002 + 0.0

0.002 + 0.0

1 Additional error beyond ± 1°C, but within

± 5°C of last ACAL.

2 Specifications apply full scale to 1/20 full scale, sinewave input, crest factor = 1.4, and PRESET. Within 24 hours and ± 1°C of last ACAL. Lo to Guard switch on.

Maximum DC is limited to 400V in ACV function.

Add 2 ppm of reading additional error for factory traceability of 10V DC to US NIST.

AC Accuracy 2

24 Hour to 2 Year (% Reading + % Range)

Range

10 mV

100 mV - 10 V

100 V

1000 V

10 Hz to

20 Hz

0.4 + 0.32

0.4 + 0.02

0.4 + 0.02

0.42 + 0.03

20 Hz to

40 Hz

0.15 + 0.25

0.15 + 0.02

0.15 + 0.02

0.17 + 0.03

40 Hz to

100 Hz

0.06 + 0.25

0.06 + 0.01

0.06 + 0.01

0.08 + 0.02

100 Hz to

20 kHz

0.02 + 0.25

0.02 + 0.01

0.03 + 0.01

0.06 + 0.02

20 kHz to

50 kHz

0.15 + 0.25

0.15 + 0.04

0.15+ 0.04

0.15 + 0.04

50 kHz to

100 kHz

0.7 + 0.35

0.6 + 0.08

0.6+ 0.08

0.6 + 0.2

100 kHz to

250 kHz

4 + 0.7

2 + 0.5

2 + 0.5

250 kHz to

500 kHz

3 + 0.6

3 + 0.6

500 kHz to

1 MHz

5 + 2

5 + 2

1 MHz to

2 MHz

10 + 5

AC + DC Accuracy (ACDCV Function)

For ACDCV Accuracy apply the following additional error to the ACV accuracy. (% of Reading + % of Range)

Range

10 mV

100 mV-1000 V

Accuracy

DC < 10% of AC Voltage

Temperature Coefficient

3

0.0 + 0.2

0.0 + 0.02

0 + 0.015

0 + 0.001

Accuracy

DC > 10% of AC Voltage

Temperature Coefficient

3

0.15 + 3

0.15 + 0.25

0 + 0.06

0 + 0.007

Additional Errors

Apply the following additional errors as appropriate to your particular measurement setup.

Low Frequency Error

( % of Reading )

Crest Factor Error

( % of Reading

)

ACBAND Low

Crest Factor Additional Error

1 - 2 0

Signal

Frequency

10 Hz - 1 kHz

NPLC >10

1 - 10 kHz

NPLC >1

> 10 kHz

NPLC > 0.1

2 - 3 0.15

10 - 200 Hz 0

3 - 4 0.25

200 - 500 Hz

500 - 1 kHz

0

0

0.15

0.015

0.9

4 - 5 0.40

1 - 2 kHz

2 - 5 kHz

5 - 10 kHz

0

0

0

0

0

0

0.2

0.05

0.01

3 Additional error beyond ± 1° C, but within

± 5°C of last ACAL.

(% of Reading + % of Range) / °C.

19

20

Section 4 / AC Voltage

Reading Rates 1

ACBAND Low

10 Hz

1 kHz

10 kHz

NPLC

10

1

0.1

Sec / Reading

ACV ACDCV

1.2

1

1

0.1

1 0.02

Settling Characteristics

For first reading or range change error using default delays, add .01% of input step additional error.

The following data applies for DELAY 0.

Function

ACV

ACDCV

ACBAND Low

≥ 10Hz

10 Hz-1 kHz

1 kHz - 10 kHz

≥ 10 kHz

DC Component

DC < 10% AC

DC > 10% AC

Settling Time

0.5 sec to 0.01%

0.9 sec to 0.01%

0.5 sec to 0.01%

0.08 sec to 0.01%

0.015 sec to 0.01%

Maximum Input

HI to LO

LO to Guard

Guard to Earth

Volt - Hz Product

Rated Input

± 1000 V pk

± 200 V pk

± 500 V pk

1 x10

8

Non-Destructive

± 1200 V pk

± 350 V pk

± 1000 V pk

Common Mode Rejection

For 1 k

Ω imbalance in LO lead, > 90 dB, DC - 60 Hz.

1 For DELAY-1; ARANGE OFF.

For DELAY 0; NPLC .1 , unspecified reading rates of greater than 500 / Sec are possible.

Random Sampled Mode

(ACV Function, SETACV RNDM)

Range

10 mV

100 mV

1 V

10 V

100 V

1000 V

Full Scale

12.000

120.00

1.2000

12.000

120.00

700.0

Maximum Resolution

1 µV

10 µV

100 µV

1 mV

10 mV

100 mV

Input Impedance

1 M

Ω ± 15% with < 140pF

1 M

Ω ± 15% with < 140pF

1 M

Ω ± 15% with < 140pF

1 M

Ω ± 2% with < 140pF

1 M

Ω ± 2% with < 140pF

1 M

Ω ± 2% with < 140pF

AC Accuracy

3

24 Hour to 2 Year (% of Reading + % of Range)

Range

ACBAND

2 MHz

20 Hz to 100 kHz to 300 kHz to 1 MHz to

100 kHz 300 kHz 1 MHz 2 MHz

10 mV

100 mV–10 V

100 V

1000 V

0.5+0.02

4+0.02

0.08+0.002 0.3+0.01

0.12+0.002

0.4+0.01

0.3+0.01

1+0.01

1.5+0.01

1.5+0.01

Temperature Coefficient

2

( % of Reading + % of Range ) / °C

0.002 + 0.02

0.001+ 0.0001

0.001+ 0.0001

0.001+ 0.0001

0.001+ 0.0001

0.001+ 0.0001

ACBAND > 2 MHz

20 Hz to 100 kHz to 1 MHz to 4 MHz to 8 MHz to

100 kHz 1 MHz 4 MHz 8 MHz 10 MHz

0.1+0.05 1.2+0.05

0.1+0.05

2+0.05

7+0.07

4+0.07

20+0.08

4+0.08

15+0.1

0.12+0.002

0.3+0.01

2 Additional error beyond ± 1°C, but within

± 5°C of last ACAL.

For ACBAND > 2 MHz, use 10 mV range temperature coefficient for all ranges.

3 Specifications apply from full scale to

5% of full scale, DC < 10% of AC, sine wave input, crest factor = 1.4, and

PRESET. Within 24 hours and ± 1°C of last ACAL. LO to Guard switch on.

Add 2 ppm of reading additional error for factory traceability of 10V DC to US NIST.

Maximum DC is limited to 400V in ACV function.

Section 4 / AC Voltage

AC + DCV Accuracy

(ACDCV Function)

For ACDCV Accuracy apply the following additional error to the ACV accuracy. (% of Range).

Range

10 mV

100 mV - 1 kV

ACBAND

2 MHz

0.09

0.008

DC

10% of AC Voltage

ACBAND

> 2 MHz

0.09

0.09

Temperature

Coefficient

1

0.03

0.0025

ACBAND

2 MHz

0.7

0.07

DC >10% of AC Voltage

ACBAND

> 2 MHz

Temperature

Coefficient

1

0.7

0.7

0.18

0.025

Additional Errors

Apply the following additional errors as appropriate to your particular measurement setup. (% of Reading)

Source R

0

50

Terminated

75

Terminated

50

0 - 1 MHz

0

0.003

0.004

0.005

Input Frequency

2

1 - 4 MHz 4 - 8 MHz

2

0

5

0

2

3

5

7

8 - 10 MHz

5

0

5

10

Crest Factor

1 - 2

2 - 3

3 - 4

4 - 5

Resolution Multiplier

(Resolution in %) x 1

(Resolution in %) x 3

(Resolution in %) x 5

(Resolution in %) x 8

Reading Rates

% Resolution

0.1 - 0.2

0.2 - 0.4

0.4 - 0.6

0.6 - 1

1 - 2

2 - 5

>5

3

1.4

0.8

0.4

0.32

ACV

Sec / Reading

ACDCV

40 39

11

2.7

9.6

2.4

1.1

0.5

0.1

0.022

High Frequency Temperature Coefficient

For outside Tcal ± 5°C add the following error. (% of Reading) / °C

Range

10 mV - 1 V

10 V - 1000 V

2 - 4 MHz

0.02

0.08

4 - 10 MHz

0.08

0.08

Settling Characteristics

For first reading or range change error using default delays, add 0.01% of input step additional error.

The following data applies for DELAY 0.

Function DC Component Settling Time

ACV

ACDCV

DC < 10% of AC 0.5 sec to 0.01%

DC > 10% of AC 0.9 sec to 0.01%

No instrument settling required.

Common Mode Rejection

For 1 k Ω imbalance in LO lead, > 90 dB, DC to 60 Hz.

Maximum Input

HI to LO

LO to Guard

Guard to Earth

Volt - Hz Product

Rated Input

± 1000 V pk

± 200 V pk

± 500 V pk

1 x 10 8

Non-Destructive

± 1200 V pk

± 350 V pk

± 1000 V pk

1 Additional error beyond ± 1°C, but within

± 5°C of last ACAL. (% of Reading) / °C.

For ACBAND > 2MHz, use 10mV range temperature coefficient for all ranges.

2 Flatness error including instrument loading.

3 For DELAY -1; ARANGE OFF. For DELAY 0 in ACV, the reading rates are identical to ACDCV.

21

22

Section 5 / AC Current

AC Current

(ACI and ACDCI Functions)

Range

100 µA

1 mA

10 mA

100 mA

1 A

Full Scale

120.0000

1.200000

12.00000

120.0000

1.050000

Maximum

Resolution

100 pA

1 nA

10 nA

100 nA

1 µA

Shunt

Resistance

730

100

10

1

0.1

Burden

Voltage

0.1 V

0.1 V

0.1 V

0.25 V

< 1.5 V

AC Accuracy 2

24 Hour to 2 Year (% Reading + % Range)

Range

100 µA

4

1 mA - 100 mA

1 A

10 Hz to

20 Hz

0.4+0.03

0.4+0.02

0.4+0.02

20 Hz to

45 Hz

0.15+0.03

0.15+0.02

0.16+0.02

45 Hz to

100 Hz

0.06+0.03

0.06+0.02

0.08+0.02

100 Hz to

5kHz

0.06 +0.03

0.03+0.02

0.1+0.02

5 kHz to

20 kHz 3

0.06+0.02

0.3 +0.02

AC + DC Accuracy (ACDCI Function)

For ACDCI Accuracy apply the following additional error to the ACI accuracy.

(% of Reading + % of Range).

DC ≤ 10% of AC

Accuracy

0.005 + 0.02

Temperature Coefficient

5

0.0 + .001

DC > 10% of AC

Accuracy

0.15 + 0.25

Temperature Coefficient

5

0.0 + 0.007

Temperature Coefficient

1

(% of Reading + % of Range) / °C

0.002 + 0

0.002 + 0

0.002 + 0

0.002 + 0

0.002 + 0

20 kHz to

50 kHz 3

0.4 +0.04

1 + 0.04

50 kHz to

100 kHz 3

0.55+0.15

Additional Errors

Apply the following additional errors as appropriate to your particular measurement setup.

Low Frequency Error

( % of Reading

)

Signal

Frequency

10 - 200Hz

200 - 500 Hz

500 - 1 kHz

1 - 2 kHz

2 - 5 kHz

5 - 10 kHz

10 Hz - 1 kHz

NPLC >10

0

0

0

0

0

0

ACBAND Low

1 - 10 kHz

NPLC >1

0.15

0.015

0

0

0

> 10 kHz

NPLC >0.1

0.9

0.2

0.05

0.01

Crest Factor Error

(% of Reading)

Crest Factor

1 - 2

2 - 3

3 - 4

4 - 5

Additional Error

0

0.15

0.25

0.40

Reading Rates 6

ACBAND Low

10 Hz

1 kHz

10 kHz

NPLC

10

1

0.1

Maximum Sec / Reading

ACI

1.2

ACDCI

1

1

1 0.1

0.02

1 Additional error beyond ± 1°C, but within

± 5°C of last ACAL.

2 Specifications apply full scale to 1/20 full scale, for sine wave inputs, crest factor =

1.4, and following PRESET within 24 hours and ± 1°C of last ACAL.

Add 5 ppm of reading additional error for factory traceability to US NIST. Traceability is the sum of the 10 V and 10 k

trace- ability values.

3 Typical performance.

4 1 kHz maximum on the 100 µA range.

5 Additional error beyond ± 1°C, but within ± 5 °C of last ACAL.

(% of Reading + % of Range) / °C.

6 For DELAY-1; ARANGE OFF. For DELAY 0;

NPLC .1, unspecified reading rates of greater than 500/sec are possible.

Section 5 / AC Current

Settling Characteristics

For first reading or range change error using default delays, add .01% of input step additional error for the

100 µA to 100 mA ranges. For the 1 A range add .05% of input step additional error.

The following data applies for DELAY 0.

Function

ACI

ACDCI

ACBAND Low

≥10 Hz

10 Hz-1 kHz

1 kHz - 10 kHz

≥ 10 kHz

DC Component

DC < 10% AC

DC > 10% AC

Settling Time

0.5 sec to 0.01%

0.9 sec to 0.01%

0.5 sec to 0.01%

0.08 sec to 0.01%

0.015 sec to 0.01%

Maximum Input

I to LO

LO to Guard

Guard to Earth

Rated Input

± 1.5 A pk

± 200 V pk

± 500 V pk

Non-Destructive

< 1.25 A rms

± 350 V pk

± 1000 V pk

Section 6 / Frequency/Period

Frequency / Period Characteristics

Frequency Range

Period Range

Input Signal Range

Input Impedance

Voltage (AC or DC Coupled)

ACV or ACDCV Functions

1

1 Hz – 10 MHz

1 sec – 100 ns

700 V rms – 1 mV rms

1 M

Ω ± 15% with < 140 pF

Accuracy

Range

1 Hz – 40 Hz

1 s – 25 ms

40 Hz – 10 MHz

25 ms – 100 ns

Measurement Technique:

Reciprocal Counting

Time Base:

10 MHz ± 0.01%, 0°C to 55°C

Level Trigger:

± 500% of Range in 5% steps

24 Hour – 2 Year

0°C – 55°C

0.05 % of Reading

0.01 % of Reading

Current (AC or DC Coupled)

ACI or ACDCI Functions

1

1 Hz – 100 kHz

1 sec – 10 µs

1 A rms – 10 µA rms

0.1 – 730

Ω 2

Reading Rates

Resolution

0.00001%

> 0.0001%

> 0.001%

> 0.01%

> 0.1%

Gate Time 3

1 s

100 ms

10 ms

1 ms

100 µs

Trigger Filter:

Selectable 75 kHz Low Pass Trigger Filter

Slope Trigger:

Positive or Negative

Readings/Sec 4

0.95

9.6

73

215

270

1 The source of frequency measurements and the measurement input coupling are determined by the FSOURCE command.

2 Range dependent, see ACI for specific range impedance values.

3 Gate Time is determined by the specified measurement resolution.

4 For Maximum Input specified to fixed range operation. For auto range, the maximum speed is 30 readings/sec for

ACBAND

1 kHz.

Actual Reading Speed is the longer of 1 period of the input, the chosen gate time, or the default reading time-out of 1.2 sec.

23

24

Section 7 / Digitizing

General Information

The Agilent 3458A supports three independent methods for signal digitizing. Each method is discussed below to aid in selecting the appropriate setup best suited to your specific application.

DCV

DSDC

DSAC

SSDC

SSAC

Standard DCV function.

This mode of digitizing allows signal acquisition at rates from 0.2 readings / sec at 28 bits resolution to

100 k readings/sec at 16 bits. Arbitrary sample apertures from 500 ns to 1 sec are selectable with 100 ns resolution. Input voltage ranges cover 100 mV to 1000 V full scale. Input bandwidth varies from 30 kHz to 150 kHz depending on the measurement range.

Direct Sampling DC Coupled measurement technique.

Direct Sampling AC Coupled measurement technique.

In these modes the input is sampled through a track / hold with a fixed 2 ns aperture which yields a 16 bit resolution result. The sample rate is selectable from 6000 sec / sample to 20 µs / sample with 100 ns resolution.

Input voltage ranges cover 10 mV peak to 1000 V peak full scale. The input bandwidth is limited to 12 MHz.

Sub-Sampling ( Effective time sampling ) DC Coupled.

Sub-Sampling ( Effective time sampling ) AC Coupled .

These techniques implement synchronous sub-sampling of a repetitive input signal through a track / hold with a 2 ns sample aperture which yields a 16 bit resolution result. The effective sample rate is settable from

6000 sec / sample to 10 ns / sample with 10 ns resolution. Sampled data can be time ordered by the instrument and output to the GPIB. Input voltage ranges cover 10 mV peak to 1000 V peak full scale. The input bandwidth is limited to 12 MHz.

Summary of Digitizing Capabilities

Technique

Standard

Direct-sampled

Sub-sampled

Function

DCV

DSDC / DSAC

SSDC / SSAC

Input Bandwidth

DC - 150 kHz

DC - 12 MHz

DC - 12 MHz

Best Accuracy

0.00005 - 0.01%

0.02%

0.02%

Sample Rate

100 k / sec

50 k / sec

100 M / sec (effective)

Standard DC Volts Digitizing

(DCV Function)

Range

100 mV

1 V

10 V

100 V

1000 V

Input

Impedance

>10 10 Ω

>10 10 Ω

>10 10 Ω

10 M

10 M

Offset

Voltage

1

< 5 µV

< 5 µV

< 5 µV

< 500 µV

< 500 µV

DC Performance

0.005 % of Reading + Offset 1

Maximum Sample Rate

(See DCV for more data.)

Readings / sec

100 k

100 k

50 k

Resolution

15 bits

16 bits

18 bits

Aperture

0.8 µs

1.4 µs

6.0 µs

Typical

Bandwidth

80 kHz

150 kHz

150 kHz

30 kHz

30 kHz

Settling Time to 0.01% of Step

50 µs

20 µs

20 µs

200 µs

200 µs

Sample Timebase

Accuracy: 0.01 %

Jitter: < 100 ps rms

External Trigger

Latency: < 175 ns 2

Jitter: < 50 ns rms

Level Trigger

Latency: < 700 ns

Jitter: < 50 ns rms

1 ±1°C of an AZERO or within 24 hours and

± 1°C of last ACAL.

2 < 125 ns variability between multiple

3458As.

Section 7 / Digitizing

Dynamic Performance

100 mV, 1 V, 10 V Ranges; Aperture = 6 µs

Test

DFT-harmonics

DFT-spurious

Differential non-linearity

Signal to Noise Ratio

Input (2 x full scale pk-pk)

1 kHz

1 kHz dc

1 kHz

Result

< -96 dB

< -100 dB

< 0.003% of Range

> 96 dB

Direct and Sub-sampled Digitizing

(DSDC, DSAC, SSDC and SSAC Functions)

Range

1

10 mV

100 mV

1 V

10 V

100 V

1000 V

Input

Impedance

1 M Ω with 140 pF

1 M Ω with 140 pF

1 M Ω with 140 pF

1 M Ω with 140 pF

1 M Ω with 140 pF

1 M Ω with 140 pF

DC to 20 kHz Performance

0.02 % of Reading + Offset 2

Maximum Sample Rate

Function

SSDC, SSAC

DSDC, DSAC

Readings / sec

100 M (effective)

4

50 k

Offset

Voltage

2

< 50 µV

< 90 µV

< 800 µV

< 8 mV

< 80 mV

< 800 mV

Resolution

16 bits

16 bits

Dynamic Performance

100 mV, 1 V, 10 V Ranges; 50,000 Samples/sec

Test

DFT-harmonics

DFT-harmonics

DFT-spurious

Differential non-linearity

Signal to Noise Ratio

Input (2 x full scale pk-pk)

20 kHz

1.005 MHz

20 kHz

20 kHz

20 kHz

Result

< - 90 dB

< - 60 dB

< - 90 dB

< 0.005 % of Range

> 66 dB

Typical

Bandwidth

2 MHz

12 MHz

12 MHz

12 MHz

12 MHz 3

2 MHz 3

Sample Timebase

Accuracy: 0.01 %

Jitter: < 100 ps rms

External Trigger

Latency: < 125 ns 5

Jitter: < 2 ns rms

Level Trigger

Latency: < 700 ns

Jitter: < 100 ps, for 1 MHz full scale input

1 Maximum DC voltage limited to 400 V DC in DSAC or SSAC functions.

2 ±1°C and within 24 hours of last ACAL

ACV.

3 Limited to 1 x 10 8 V-Hz product.

4 Effective sample rate is determined by the smallest time increment used during synchronous sub-sampling of the repetitive input signal, which is 10 ns.

5 < 25 ns variability between multiple

3458As.

25

26

Section 8 / System Specifications

Function-Range-Measurement

The time required to program via GPIB a new measurement configuration, trigger a reading, and return the result to a controller with the following instrument setup: PRESET FAST; DELAY 0; AZERO ON;

OFORMAT SINT; INBUF ON; NPLC 0 .

TO - FROM Configuration Description

DCV ≤ 10 V to DCV ≤ 10 V any DCV / OHMS to any DCV / OHMS any DCV / OHMS to any DCV / OHMS with DEFEAT ON

TO or FROM any DCI

TO or FROM any ACV or ACI

Selected Operating Rates 2

GPIB Rate 1

180 / sec

85 / sec

150 / sec

70 / sec

75 / sec

Subprogram Rate

340 / sec

110 / sec

270 / sec

90 / sec

90 / sec

DCV Autorange Rate (100 mV to 10 V)

Execute simple command changes (CALL, OCOMP, etc.)

Readings to GPIB, ASCII

Readings to GPIB, DREAL

Readings to GPIB, DINT

Readings to internal memory, DINT

Readings from internal memory to GPIB, DINT

Readings to GPIB, SINT

Readings to internal memory, SINT

Readings from internal memory to GPIB, SINT

Maximum internal trigger reading rate

Maximum external trigger reading rate

Rate

110 / sec

330 / sec

630 / sec

1000 / sec

50,000 / sec

50,000 / sec

50,000 / sec

100,000 / sec

100,000 / sec

100,000 / sec

100,000 / sec

100,000 / sec

Memory

Reading Storage ( 16 bit )

Non-volatile, for subprograms and / or state storage

Standard

Readings Bytes

10,240 20 k

14 k

Option 001

Readings Bytes

+65,536 +128 k

Delay Time

Accuracy

Maximum

Resolution

Jitter

±0.01% ± 5 ns

6000 s

10 ns

50 ns pk-pk

Timer

Accuracy

Maximum

Resolution

Jitter

±0.01% ± 5 ns

6000 s

100 ns

<100 ps rms

1 Using HP 9000 Series 350.

2 SINT data is valid for

APER ≤10.8 µs.

Type of Ratio 1

DCV / DCV

ACV / DCV

ACDCV / DCV

Ratio = (Input) / (Reference)

Reference: (HI Sense to LO) - (LO Sense to LO)

Reference Signal Range: ±12 V DC (autorange only)

Accuracy

± (Input error + Reference Error)

Input error = 1 x Total Error for input signal measurement function (DCV, ACV, ACDCV)

Reference error = 1.5 x Total error for the range of the reference DC input

Section 9 / Ratio

1 All SETACV measurement types are selectable.

LO Sense to LO limited to

± 0.25 V.

Section 10 / Math Functions

General Math Function Specifications

Math is executable as either a real-time or post processed operation .

Math function specifications do not include the error in X ( the instrument reading ) or errors in user entered values. The range of values input or output is + 1.0 x 10

-

37 to + 1.0 x 10 37 . Out of range values indicate OVLD in the display and 1 x 10 38 to

GPIB. The minimum execution time is the time required to complete one math operation after each reading has completed.

NULL:

X-OFFSET

Minimum Execution Time = 180 µs

PERC:

100 x (X-PERC) / PERC

Minimum Execution Time = 600 µs dB:

20 x Log (X/REF)

Minimum Execution Time = 3.9 ms

SCALE:

(X-OFFSET) / SCALE

Minimum Execution Time = 500 µs

PFAIL:

Based on MIN, MAX registers

Minimum Execution Time = 160 µs dBm:

10 x Log [(X 2 / RES) / 1mW]

Minimum Execution Time = 3.9 ms

RMS:

1-pole digital filter

Computed rms of inputs.

Minimum Execution Time = 2.7 ms

STAT:

MEAN, SDEV computed for sample population (N-1).

NSAMP, UPPER, LOWER accumulated.

Minimum Execution Time = 900 µs

CTHRM2K (FTHRM2K):

°C (°F) temperature conversion for

2.2 k Ω thermistor (40653A).

Minimum Execution Time = 160 µs

CRTD85 (FRTD85):

°C (°F) temperature conversion for

RTD of 100 Ω, Alpha = 0.00385

(40654A or 40654B).

Minimum Execution Time = 160 µs

FILTER:

1-pole digital filter

Weighted Average of inputs

Minimum Execution Time= 750 µs

CTHRM (FTHRM):

°C (°F) temperature conversion for

5 k Ω thermistor (40653B).

Minimum Execution Time = 160 µs

CTHRM10K (FTHRM10K):

°C (°F) temperature conversion for

10 k Ω thermistor (40653C).

Minimum Execution Time = 160 µs

CRTD92 (FRTD92):

°C (°F) temperature conversion for

RTD of 100 Ω, Alpha = 0.003916

Minimum Execution Time = 160 µs

27

28

Section 11 / General Specifications

Operating Environment

0 o C to 55 o C

Operating Humidity Range up to 95% RH at 40 o C

Physical Characteristics

88.9 mm H x 425.5 mm W x 502.9 mm D

Net Weight: 12 kg (26.5 lbs)

Shipping Weight 14.8 kg (32.5 lbs)

IEEE-4888 Interface

Complies with the following:

IEEE-488.1 Interface Standard

IEEE-728 Codes/Formats Standard

HPML (Multimeter Language)

Storage Temperature

-40 o C to + 75 o C

Warm-Up Time

4 Hours to published specifications

Power Requirements

100/120 V, 220/240 V ±10%

48-66 Hz, 360-420 Hz automatically sensed

< 30 W, < 80 VA (peak)

Fused: 1.5 @ 115 V or 0.5 A @230 V

Designed in Accordance with

Safety: IEC 348, UL1244, CSA

EMI:FTZ 1046, FCC part 15-J

Classification: Classified under MIL-T-28800D as Type III,

Class 5, Style E, and Color R.

Warranty Period

One year

Input Terminals

Gold-plated Tellurium Copper

Included with 3458A

Test Lead Set (34118B)

Power Cord

Operating Manual (P/N 03458-90004)

Calibration Manual (P/N 03458-90016)

Assembly Level Repair Manual (P/N 03458-90010)

Quick Reference Guide (P/N 03458-90005)

Field Installation Kits

Option 001

Option 002

Extended Reading Memory

High Stability Reference

Extra Keyboard Overlays (5 each)

Available Documentation

Product Note 3458A-1: Optimizing Throughput and Reading Rate

Product Note 3458A-2: High Resolution Digitizing with the 3458A

Product Note 3458A-3: Electronic Calibration of the 3458A

Extra Manual Set

Part Number

03458-87901

03458-80002

03458-84303

Part Number

5953-7058

5953-7059

5953-7060

03458-90100

Section 12 / Ordering Information

Agilent 3458A Multimeter

(with GPIB, 20k bytes reading memory, and 8 ppm stability)

Option 001

Option 002

Option 1BP

Option W30

Option W32

Option 907

Option 908

Option 909

Extended Reading Memory (Expands total to 148 k bytes)

High Stability (4 ppm/year) Reference

MIL-STD-45662A Certificate of Calibration - with data

Three year customer return repair coverage

Three year customer return calibration coverage

Front Handles Kit (P/N 5062-3988)

Rack Mount Kit (P/N 5062-3974)

Rack Mount Kit with handles (P/N 5062-3975)

Accessories

10833A

10833B

10833C

10833D

34118B

11053A

11174A

11058A

34301A

34300A

34119A

34302A

11059A

11062A

GPIB Cable (1m)

GPIB Cable (2m)

GPIB Cable (4m)

GPIB Cable (0.5m)

Test Lead Set

Low thermal test lead pair, spade lug to spade lug, 0.9 m

Low thermal test lead pair, spade lug to banana, 0.9 m

Low thermal test lead pair, banana to banana, 0.9 m

700 MHz Rf Probe

40 kV ac/dc High Voltage Probe

5 kV dc/ac 1 MHz High Voltage Probe

Clamp-on ac/dc Current Probe (100A)

Kelvin Probe Set (4-wires, 1 m)

Kelvin Clip Set (2 each)

Top: Low thermal test leads

Bottom: Kelvin probe and clip set

29

30

More High Performance Multimeters to Meet Your Needs

34401A Multimeter

• 6.5 digits of resolution

• 15 ppm basic 24-hr accuracy

• 11 measurement functions

• 1,000 readings per second

• GPIB and RS-232 standard

Agilent offers a full line of affordable, high performance DMMs from 3.5 digit Handhelds to the 8.5 digit 3458A. Please consult your T&M catalog or contact the nearest

Agilent Technologies sales office for more information.

The new standard in price /performance

If you are looking for an affordable, high performance DMM, look no further. The

34401A brings you all the performance you expect from Agilent Technologies, but at a price that will surprise you.

Uncompromised performance

The 34401A combines a powerful measurement engine with an advanced feature set.

The results are impressive: 6.5 digits of resolution, 1,000 readings per second,

11 measurement functions, standard

GPIB and RS-232, built-in limit test, and room for 512 readings in volatile memory.

The 34401A is at home either on your bench or in your test system.

Affordable workhorse

By leveraging 3458A measurement technology, replacing piles of discrete chips with custom ICs, and by designing for manufacturability, we have eliminated costs without sacrificing reliability. The

34401A has a proven track record, with tens of thousands of units in the field today and an actual MTBF of over 150,000 hours. With numbers like that, chances are you’ll retire before it does.

6.5 digit accuracy at a 5.5 digit price...

the 34401A

Multimeter

34420A

Nanovolt /Micro-ohm meter

• 7.5 digits of resolution

• 10 0 pV/100 n

Ω of sensitivity

• 8 nVpp noise

• Built-in two channel dcV scanner

• ITS-90 temperature, including SPRTs

Take the uncertainty out of your low-level measurements

When every nanovolt counts, look to the

34420A for its low-noise, accuracy, and reliability. Low-noise input amplifiers and a highly tuned input protection scheme bring reading noise down to 8 nVpp — half that of other nanovolt meters in its class.

Now add 100 pV/100 n

Ω of sensitivity, 2 ppm basic 24-hr dcV accuracy, and 7.5 digits of resolution, and you’ve got accurate, repeatable measurements you can rely on month after month.

More measurements for your money

Most existing nanovoltmeters measure only nanovolts. However, the 34420A provides a more complete solution for meeting your low-level needs. We’ve added a high precision current source to enable resistance measurements from 100 n

Ω to

1 M

Ω, all without the hassle and expense of an external supply. We’ve also included

ITS-90 conversion routines so you can read thermocouples, thermistors, and RTDs — even SPRTs — directly in degrees. And if that isn’t enough, a built-in two channel scanner allows automated dcV ratio and difference measurements. Better still, the 34420A offers all this functionality for less than what you are used to paying for nanovolt-only products.

Nanovolt performance at a Microvolt price...

the 34420A

Nanovolt /Micro-Ohm Meter

31

Agilent Technologies’ Test and Measurement

Support, Services, and Assistance

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. Support is available for at least five years beyond the production life of the product. Two concepts underlie Agilent’s overall support policy:

“Our Promise” and “Your Advantage.”

Our Promise

“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 use Agilent equipment, we can verify that it works properly, help with product operation, and provide basic measurement assistance for the use of specified capabilities, at no extra cost upon request. Many self-help tools are available.

Your Advantage

“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, extracost upgrades, out-of-warranty repairs, and on-site education and training, as well as design, system integration, project management, and other professional services.

Experienced Agilent engineers and technicians worldwide can help you maximize your productivity, optimize the return on investment of your Agilent instruments and systems, and obtain dependable measurement accuracy for the life of those products.

By internet, phone, or fax, get assistance with all your test and measurement needs.

Online Assistance www.agilent.com/find/assist

Phone or Fax

United States:

(tel) 1 800 452 4844

Canada:

(tel) 1 877 894 4414

(fax) (905) 206 4120

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(tel) (31 20) 547 2323

(fax) (31 20) 547 2390

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(tel) (81) 426 56 7832

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Product specifications and descriptions in this document subject to change without notice.

Copyright © 1996, 2000 Agilent Technologies

Printed in U.S.A. 8/00

5965-4971E

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