Tektronix DMM6500 User manual

Download

Model DMM6500 6½-Digit Multimeter with Scanning

Calibration and Adjustment Manual

DMM6500-905-01 Rev. E June 2022

tek.com/keithley

*DMM6500-905-01E*

DMM6500-905-01E

6½-Digit Multimeter with Scanning

DMM6500

Calibration and Adjustment Manual

Cleveland, Ohio, U.S.A.

Any unauthorized reproduction, photocopy, or use of the information herein, in whole or in part,

without the prior written approval of Keithley Instruments, LLC, is strictly prohibited.

These are the original instructions in English.

TSPTM and TSP-LinkTM are trademarks of Keithley Instruments, LLC. All Keithley Instruments

product names are trademarks or registered trademarks of Keithley Instruments, LLC. Other brand

names are trademarks or registered trademarks of their respective holders.

PUC-Rio. Terms of license for the Lua software and associated documentation can be accessed at

the Lua licensing site (http://www.lua.org/license.html).

Microsoft, Visual C++, Excel, and Windows are either registered trademarks or trademarks of

Microsoft Corporation in the United States and/or other countries.

Document number: DMM6500-905-01 Rev. E June 2022

Safety precautions

The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with nonhazardous voltages, there are situations where hazardous conditions may be present.

This product is intended for use by personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer to the user documentation for complete product specifications.

If the product is used in a manner not specified, the protection provided by the product warranty may be impaired.

The types of product users are:

Responsible body is the individual or group responsible for the use and maintenance of equipment, for ensuring that the equipment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.

Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the instrument. They must be protected from electric shock and contact with hazardous live circuits.

Maintenance personnel perform routine procedures on the product to keep it operating properly, for example, setting the line voltage or replacing consumable materials. Maintenance procedures are described in the user documentation. The procedures explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.

Service personnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained service personnel may perform installation and service procedures.

Keithley products are designed for use with electrical signals that are measurement, control, and data I/O connections, with low transient overvoltages, and must not be directly connected to mains voltage or to voltage sources with high transient overvoltages. Measurement Category II (as referenced in IEC 60664) connections require protection for high transient overvoltages often associated with local AC mains connections. Certain Keithley measuring instruments may be connected to mains. These instruments will be marked as category II or higher.

Unless explicitly allowed in the specifications, operating manual, and instrument labels, do not connect any instrument to mains.

Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30 V RMS, 42.4 V peak, or 60 VDC are present. A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring.

Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is capable of operating at or above 1000 V, no conductive part of the circuit may be exposed.

Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance-limited sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card.

Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.

When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input power disconnect device must be provided in close proximity to the equipment and within easy reach of the operator.

For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test. ALWAYS remove power from the entire test system and discharge any capacitors before connecting or disconnecting cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.

Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured.

For safety, instruments and accessories must be used in accordance with the operating instructions. If the instruments or accessories are used in a manner not specified in the operating instructions, the protection provided by the equipment may be impaired.

Do not exceed the maximum signal levels of the instruments and accessories. Maximum signal levels are defined in the specifications and operating information and shown on the instrument panels, test fixture panels, and switching cards.

When fuses are used in a product, replace with the same type and rating for continued protection against fire hazard.

Chassis connections must only be used as shield connections for measuring circuits, NOT as protective earth (safety ground) connections.

If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use of a lid interlock.

screw is present, connect it to protective earth (safety ground) using the wire recommended in the user documentation.

If a

The

symbol on an instrument means caution, risk of hazard. The user must refer to the operating instructions located in the

user documentation in all cases where the symbol is marked on the instrument.

The

symbol on an instrument means warning, risk of electric shock. Use standard safety precautions to avoid personal

contact with these voltages.

The

If this

symbol on an instrument shows that the surface may be hot. Avoid personal contact to prevent burns.

symbol indicates a connection terminal to the equipment frame.

symbol is on a product, it indicates that mercury is present in the display lamp. Please note that the lamp must be

properly disposed of according to federal, state, and local laws.

The WARNING heading in the user documentation explains hazards that might result in personal injury or death. Always read the associated information very carefully before performing the indicated procedure.

The CAUTION heading in the user documentation explains hazards that could damage the instrument. Such damage may invalidate the warranty.

The CAUTION heading with the

symbol in the user documentation explains hazards that could result in moderate or minor injury or damage the instrument. Always read the associated information very carefully before performing the indicated procedure. Damage to the instrument may invalidate the warranty.

Instrumentation and accessories shall not be connected to humans.

Before performing any maintenance, disconnect the line cord and all test cables.

To maintain protection from electric shock and fire, replacement components in mains circuits — including the power transformer, test leads, and input jacks — must be purchased from Keithley. Standard fuses with applicable national safety approvals may be used if the rating and type are the same. The detachable mains power cord provided with the instrument may only be replaced with a similarly rated power cord. Other components that are not safety-related may be purchased from other suppliers as long as they are equivalent to the original component (note that selected parts should be purchased only through Keithley to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement component, call a Keithley office for information.

Unless otherwise noted in product-specific literature, Keithley instruments are designed to operate indoors only, in the following environment: Altitude at or below 2,000 m (6,562 ft); temperature 0 °C to 50 °C (32 °F to 122 °F); and pollution degree 1 or 2.

To clean an instrument, use a cloth dampened with deionized water or mild, water-based cleaner. Clean the exterior of the instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that consist of a circuit board with no case or chassis (e.g., a data acquisition board for installation into a computer) should never require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board should be returned to the factory for proper cleaning/servicing.

Safety precaution revision as of June 2018.

Introduction ............................................................................................................... 1-1

Welcome .............................................................................................................................. 1-1

Introduction to this manual ................................................................................................... 1-1

Extended warranty ............................................................................................................... 1-2

Contact information .............................................................................................................. 1-2

Performance verification .......................................................................................... 2-1

Introduction .......................................................................................................................... 2-1

Verification test requirements .............................................................................................. 2-2

Environmental conditions .......................................................................................................... 2-2

Warmup period .......................................................................................................................... 2-2

Line power................................................................................................................................. 2-3

Recommended test equipment ................................................................................................. 2-3

Calibration verification limits ................................................................................................ 2-4

Example reading limit calculation .............................................................................................. 2-4

Calculating resistance reading limits ......................................................................................... 2-4

Performing the verification test procedures ......................................................................... 2-5

Test summary ........................................................................................................................... 2-5

Test considerations ................................................................................................................... 2-6

Front-panel calibration verification ....................................................................................... 2-6

DC voltage verification .............................................................................................................. 2-6

AC voltage verification ............................................................................................................ 2-10

Digitize dc voltage verification ................................................................................................. 2-14

Frequency verification ............................................................................................................. 2-17

Simulated thermocouple type J temperature verification ......................................................... 2-18

Simulated RTD temperature verification ................................................................................. 2-20

Resistance verification ............................................................................................................ 2-24

DC current verification ............................................................................................................. 2-29

Digitize current verification ...................................................................................................... 2-33

AC current verification ............................................................................................................. 2-36

Capacitance verification .......................................................................................................... 2-39

Verifying zero values using a 4-wire short ............................................................................... 2-41

Rear-panel verification ....................................................................................................... 2-43

DC current 10 A range verification .......................................................................................... 2-43

Digitize current 10 A range verification .................................................................................... 2-45

AC current 10 A verification..................................................................................................... 2-47

Adjustment ................................................................................................................ 3-1

Introduction .......................................................................................................................... 3-1

Environmental conditions ..................................................................................................... 3-2

Temperature and relative humidity ............................................................................................ 3-2

Line power................................................................................................................................. 3-2

Warmup period ..................................................................................................................... 3-2

Adjustment overview ............................................................................................................ 3-3

Recommended test equipment ............................................................................................ 3-3

Table of contents

Calibration and Adjustment Manual

DMM6500 6½-Digit Multimeter with Scanning

General adjustment considerations ..................................................................................... 3-4

Initial instrument setup ......................................................................................................... 3-5

Select the correct terminals ....................................................................................................... 3-5

Select the TSP command set .................................................................................................... 3-5

Verify instrument date and time ................................................................................................. 3-6

Set up remote connections........................................................................................................ 3-6

Unlock calibration ...................................................................................................................... 3-6

Disable temperature correction ................................................................................................. 3-7

Remote calibration adjustment procedures ......................................................................... 3-7

Disable temperature correction ................................................................................................. 3-7

Front-terminal adjustment with a 4-wire short ........................................................................... 3-7

Rear-terminal adjustment with a 4-wire short .......................................................................... 3-10

Front-terminal adjustment with open circuit inputs .................................................................. 3-13

Rear-terminal adjustment with open circuit inputs ................................................................... 3-14

Resistance adjustment ............................................................................................................ 3-15

DC voltage adjustment ............................................................................................................ 3-18

DC current adjustment ............................................................................................................ 3-20

DC current 10 A range adjustment .......................................................................................... 3-24

AC voltage adjustment ............................................................................................................ 3-26

AC current adjustment ............................................................................................................ 3-29

AC current 10 A range adjustment .......................................................................................... 3-31

Frequency adjustment ............................................................................................................. 3-32

Complete list of calibration commands .................................................................................... 3-34

Enable temperature correction ........................................................................................... 3-46

Save calibration and set the adjustment dates .................................................................. 3-46

Setting time, adjustment, and verification dates ................................................................ 3-47

Adjustment command timing and error checking ............................................................... 3-47

Handling events ................................................................................................................. 3-48

TSP command reference .......................................................................................... 4-1

TSP commands .................................................................................................................... 4-1

Introduction ............................................................................................................................... 4-1

cal.adjust.count ......................................................................................................................... 4-2

cal.adjust.date ........................................................................................................................... 4-3

cal.adjust.step.setup() ............................................................................................................... 4-4

cal.adjust.step.execute() ........................................................................................................... 4-5

cal.lock() .................................................................................................................................... 4-6

cal.password ............................................................................................................................. 4-7

cal.save()................................................................................................................................... 4-8

cal.unlock() ................................................................................................................................ 4-9

cal.verify.date .......................................................................................................................... 4-10

In this section:

Contact information .................................................................. 1-2

Welcome

The DMM6500 is a 6½ digit graphical sampling multimeter that expands standard DMM functions with high-speed digitizing and large graphical color touchscreen display.

This manual provides information on completing verification and adjustment procedures for your DMM6500.

Section 1

Introduction

Welcome .................................................................................. 1-1

Introduction to this manual ....................................................... 1-1

Extended warranty ................................................................... 1-2

Introduction to this manual

This manual provides instructions to help you calibrate and adjust your DMM6500. In this manual, calibration refers to the process of verifying that the accuracy of the instrument is within its one-year accuracy specifications. Also, adjustment refers to the process of changing the calibration constants so that the accuracy of the instrument is within its one-year accuracy specifications.

This manual presents calibration information, adjustment information, and command descriptions for the calibration and adjustment commands.

For additional command descriptions, refer to the DMM6500 Reference Manual available on the

Product Support and Downloads web page (tek.com/en/support/product-support). Additionally,

refer to the release notes for your instrument that contains relevant information on

improvements, changes, and known issues.

Section

ation and Adjustment Manual

1: Introduction DMM6500 6½-Digit Multimeter with Scanning Calibr

Extended warranty

Additional years of warranty coverage are available on many products. These valuable contracts protect you from unbudgeted service expenses and provide additional years of protection at a fraction of the price of a repair. Extended warranties are available on new and existing products. Contact your local Keithley Instruments office, sales partner, or distributor for details.

Contact information

If you have any questions after you review the information in this documentation, please contact your local Keithley Instruments office, sales partner, or distributor. You can also call the Tektronix corporate headquarters (toll-free inside the U.S. and Canada only) at 1-800-833-9200. For worldwide contact numbers, visit tek.com/contact

1-2 DMM6500-905-01 Rev. E June 2022

Rear-panel verification ........................................................... 2-43

In this section:

Introduction .............................................................................. 2-1

Verification test requirements ................................................... 2-2

Calibration verification limits ..................................................... 2-4

Performing the verification test procedures .............................. 2-5

Front-panel calibration verification ........................................... 2-6

Introduction

Use the procedures in this section to verify that DMM6500 accuracy is within the limits stated in the instrument’s one-year accuracy specifications. Specifications and characteristics are subject to change without notice; refer to the Product Support and Downloads web page (tek.com/en/support/product-support) for the most recent specifications.

Section 2

Performance verification

You can use these verification procedures to:

• Make sure that the instrument was not damaged during shipment.

• Verify that the instrument meets factory specifications.

• Determine if adjustment is required.

• Verify that adjustment was done properly.

The information in this section is intended for qualified service personnel only, as described by the types of product users in the Safety precautions pages, provided at the beginning of this document. Do not attempt these procedures unless you are qualified to do so.

Some of these procedures may expose you to hazardous voltages, that if contacted, could cause personal injury or death. Use appropriate safety precautions when working with hazardous voltages.

Section

Calibration and Adjustment Manual

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

If the instrument is still under warranty and its performance is outside specified limits, please contact your local Keithley Instruments office, sales partner, or distributor. You can also call the Tektronix corporate headquarters (toll-free inside the U.S. and Canada only) at 1-800-833-9200. For worldwide contact numbers, visit tek.com/contact

Verification test requirements

Be sure that you perform these verification tests:

• Under the proper environmental conditions.

• After the specified warmup period.

• Using the correct line voltage.

• Using the proper test equipment.

• Using the specified output signal and reading limits.

Environmental conditions

Conduct the calibration verification procedures in a test environment with:

• An ambient temperature of 18 °C to 28 °C.

• A relative humidity of less than or equal to 80 percent, unless otherwise noted.

• No direct airflow on the input terminals.

Warmup period

Allow the DMM6500 to warm up for at least 30 minutes before conducting the calibration verification procedures.

If the instrument has been subjected to temperature extremes (more than 5 °C above or below T allow additional time for the internal temperature of the instrument to stabilize. Typically, allow an additional 30 minutes to stabilize an instrument that is 10 °C outside the specified temperature range.

Also allow the test equipment to warm up for the time recommended by the manufacturer.

CAL

2-2 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

Fluke

5720A or 5730A

High-Performance

DCV, ACV, ACI, and

See following Fluke

5725A

Amplifier

DCI and ACI

See following note.

Fluke

8508A or 8588A

8.5-Digit Reference Multimeter

DCI

See following note.

Keithley Instruments

3390

Function/Arbitrary Waveform Generator

Frequency

See following note.

IET Labs, Inc.

HACS-Z-A-2E-1uF

Series HACS-Z High

Capacitance Box

Capacitance, 1 µF to

See following Keithley Instruments

8610 or 8620

4-Wire DMM Shorting Plug

DCV, digitize DCV, and resistance

See following note.

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Line power

The DMM6500 requires a line voltage of 100 V to 240 V and a line frequency of 400 Hz, 50 Hz or 60 Hz. Calibration verification tests should be performed within this range.

The instrument automatically senses the line frequency at power-up.

Recommended test equipment

The following table summarizes the recommended calibration verification equipment. You can use alternate equipment if that equipment has specifications that meet or exceed those listed in the table below. Test equipment uncertainty adds to the uncertainty of each measurement. Generally, test equipment uncertainty should be at least four times more accurate than corresponding DMM6500 specifications.

In this manual, the Model 8610 shorting plug is shown in the figures. However, you can use either the Model 8610 or the Model 8620 shorting plug.

Manufacturer Model Description Used for Uncertainty

Multifunction Calibrator

IET Labs, Inc. 1423-A Precision Decade

Capacitor

Accuracy Decade

resistance

Capacitance, 1 nF to 1 µF

100 µF

note.

See following note.

note.

Refer to the manufacturer's specifications to calculate the uncertainty, which varies for each function and range test point.

DMM6500-905-01 Rev. E June 2022 2-3

Section

Calibration and Adjustment Manual

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

Calibration verification limits

The calibration verification limits stated in this section have been calculated using only the DMM6500 one-year accuracy specifications and ambient temperature ±5 °C from T the instrument was calibrated). They do not include test equipment uncertainty. If a particular measurement falls outside the allowable range, recalculate new limits based on both the DMM6500 specifications and corresponding test equipment specifications.

Specifications and characteristics are subject to change without notice; please refer to

tek.com/keithley

Example reading limit calculation

Assume you are testing the 10 V dc range using a 10 V input value. Using the DMM6500 one-year accuracy specification for 10 V dc of ± (25 ppm of reading + 5 ppm of range), the calculated limits are:

• Reading limits = 10 V ± [(10 V × 25 ppm) + (10 V × 5 ppm)]

for the most recent specifications.

(the temperature at which

CAL

• Reading limits = 10 V ± (0.00025 + 0.00005) V

• Reading limits = 10 V ± 0.00030 V

• Reading limits = 9.99970 V to 10.00030 V

Calculating resistance reading limits

Resistance reading limits must be recalculated based on the actual calibration resistance values supplied by the equipment manufacturer. Calculations are performed in the same manner as shown in the preceding example. Use the actual calibration resistance values instead of the nominal values in the example when performing your calculations.

For example, assume that you are testing the 10 kΩ range using an actual 10.03 kΩ calibration resistance value. Using DMM6500 one-year 10 kΩ range accuracy of ± (75 ppm of reading + 6 ppm of range), the calculated reading limits are:

• Reading limits = 10.03 kΩ ± [(10.03 kΩ x 75 ppm) + (10 kΩ x 6 ppm)]

• Reading limits = 10.03 kΩ ± [(0.7523) + (0.06)] Ω

• Reading limits = 10.03 kΩ ± 0.8123 Ω

• Reading limits = 10.029188 kΩ to 10.030812 kΩ

2-4 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Performing the verification test procedures

The following topics provide a summary of calibration verification test procedures and items to consider before performing any calibration verification test.

Test summary

Front-panel tests:

• DC voltage verification (on page 2-6)

• AC voltage verification (on page 2-10)

• Digitize voltage verification (on page 2-14)

• Frequency verification (on page 2-17)

• Simulated thermocouple type J temperature verification (on page 2-18)

• Simulated RTD temperature verification (on page 2-20)

• Resistance verification (on page 2-24)

• DC current verification (on page 2-29)

• Digitize current verification (on page 2-33)

• AC current verification (on page 2-36)

• Capacitance verification (on page 2-39)

• Verifying zero values using a 4-wire short (on page 2-41)

Rear-panel tests:

• DC current 10 A range verification (on page 3-24)

• Digitize current 10 A range verification (on page 2-45)

• AC current 10 A verification (on page 2-47)

DMM6500-905-01 Rev. E June 2022 2-5

Section

Calibration and Adjustment Manual

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

Test considerations

When performing the calibration verification procedures:

• Be sure to restore factory front-panel defaults. From the front panel, select the MENU key, select

Info/Manage, and select System Reset.

• Make sure that the test equipment is warmed up for the time recommended by the manufacturer

and is connected to the DMM6500 input/output terminals.

• Make sure that the correct DMM6500 terminals are selected with the TERMINALS FRONT/REAR

switch.

• Make sure the test equipment is set up for the proper function and range.

• Do not connect test equipment to the DMM6500 through a scanner, multiplexer, or other

switching equipment.

The front and rear terminals of the instrument are rated for connection to circuits rated Measurement Category II up to 300 V, as described in International Electrotechnical Commission (IEC) Standard IEC 60664. This range must not be exceeded. Do not connect the instrument terminals to CAT III or CAT IV circuits. Connection of the instrument terminals to circuits higher than CAT II can cause damage to the equipment and severe personal injury.

Front-panel calibration verification

The following topics describe verification procedures that are done with connections attached to the terminals on the DMM6500 front panel.

DC voltage verification

The maximum input voltage between INPUT HI and INPUT LO is 1000 V dc and 750 V ac. Exceeding this value may create a shock hazard.

The maximum common-mode voltage (the voltage between INPUT LO and chassis ground) is 500 V hazard.

. Exceeding this value may cause a breakdown in insulation that can create a shock

PEAK

2-6 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Verify dc voltage accuracy for the 100 mV to 1000 V ranges

To verify 100 mV to 1000 V dc voltage accuracies, you will:

• Apply accurate dc voltages from the calibrator to the DMM6500 front-panel terminals.

• Verify that the displayed readings are within specified limits.

• Use the values in the tables following the steps below to verify the performance of the DMM6500.

Actual values depend on the published specifications (see Example reading limit calculation page 2-4)).

Use shielded low-thermal connections when testing the 100 mV and 1 V ranges to avoid errors caused by noise or thermal effects. Connect the shield to the output LO terminal of the calibrator.

To verify dc voltage accuracy:

1. Use a low-thermal cable to connect the DMM6500 HI and LO INPUT terminals to the calibrator HI and LO terminals as shown in the following figure.

(on

Figure 1: DC voltage 100 mV to 1000 V ranges verification connections

2. On the DMM6500, press the FUNCTION key and select DC voltage.

3. On the home screen, select the button next to Range and select 100 mV.

4. Press the MENU key.

5. Under Measure, select Settings.

6. Set Input Impedance to Auto.

7. Set the calibrator output to 0 V.

8. Set the calibrator to OPERATE.

DMM6500-905-01 Rev. E June 2022 2-7

Section

Calibration and Adjustment Manual

Perform relative offset

-0.01

0.01 Full scale (+)

100

99.9935

100.0065

Half scale (+)

49.995

50.005

Half scale (–)

-50

-50.005

-49.995

Full scale (–)

-100

-100.0065

-99.9935

Full scale (+)

0.999969

1.000031

Half scale (+)

0.5

0.499979

0.500021

Half scale (–)

-0.5

-0.500021

-0.499979

Full scale (–)

–1

–1.000031

-0.999969

Full scale (+)

9.9997

10.0003

Half scale (–)

–5

–5.00018

–4.99982

Full scale (–)

–10

–10.0003

–9.9997

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

9. Allow 5 minutes of settling time.

10. Press the MENU key.

11. Select Calculations.

12. [Only for the 100 mV range] Select Rel Acquire.

13. Source positive and negative full-scale and half-scale voltages and allow for proper settling.

14. Select each range on the DMM6500, allow for proper settling, and verify the ranges according to the following tables.

Verify the dc voltage 100 mV range

Description Nominal value Lower limit Upper limit

Verify the dc voltage 1 V range

Description Nominal value Lower limit Upper limit

Verify the dc voltage 10 V range

Description Nominal value Lower limit Upper limit

Half scale (+) 5 4.99982 5.00018

2-8 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

Full scale (+)

100

99.954

100.0046

Half scale (–)

-50

-50.00315

-49.99685

Full scale (+)

1000

999.944

1000.056

Half scale (–)

-500

-500.026

-499.974

Full scale (–)

-1000

-1000.069

-999.931

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Verify the dc voltage 100 V range

Some of these procedures may expose you to hazardous voltages, that if contacted, could cause personal injury or death. Use appropriate safety precautions when working with hazardous voltages.

Description Nominal value Lower limit Upper limit

Half scale (+) 50 49.99685 50.00315

Full scale (–) -100 -100.0054 -99.9946

Verify the dc voltage 1000 V range

Description Nominal value Lower limit* Upper limit*

Half scale (+) 500 499.974 500.026

*For each additional volt over ±500 V, add 0.02 mV of uncertainty.

DMM6500-905-01 Rev. E June 2022 2-9

Section

Calibration and Adjustment Manual

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

AC voltage verification

To verify ac voltage accuracy:

• For the 100 mV to 100 V ranges, apply accurate voltages from the calibrator to the DMM6500

front-panel terminals.

• For the 750 V range, connect the Fluke 5725A Amplifier to the calibrator. Apply accurate voltages

from the calibrator terminals to the terminals on the front panel of the DMM6500.

• Verify that the displayed readings are within specified limits.

Use the values in the tables following the steps below to verify the performance of the DMM6500. Actual values depend on the published specifications (see Example reading limit calculation 2-4)).

The maximum input voltage between INPUT HI and INPUT LO is 750 V dc. Exceeding this value may create a shock hazard.

(on page

The maximum common-mode voltage (the voltage between INPUT LO and chassis ground) is 500 V

. Exceeding this value may cause a breakdown in insulation that can create a shock

PEAK

hazard.

Verify ac voltage accuracy for the 100 mV to 100 V ranges

Use shielded, low-capacitance cabling. For the 100 mV to 100 V ranges, avoid loading that exceeds 1000 pF.

Excessive capacitance may result in additional load regulation uncertainties and could cause the calibrator output to open (go into standby).

2-10 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

To verify ac voltage accuracy:

1. Connect the DMM6500 HI and LO INPUT connectors to the calibrator as shown in the following figure.

Figure 2: Connections for ac voltage verification 100 mV to 100 V ranges

2. On the DMM6500, press the FUNCTION key and select AC voltage.

3. On the home screen, select the button next to Range and select 100 mV.

4. Press the MENU key.

5. Under Measure, select Settings.

6. Make sure that detector bandwidth is set to 30 Hz.

AC voltage is specified for the detector bandwidth setting of 3 Hz. Three Hz measures accurately for input signals from 3 Hz to 300 kHz, with reading rates ≈ 2 readings/s. To improve verification throughput to ≈ 20 readings/s, set detector bandwidth to 30 Hz for frequencies of 30 Hz to 300 kHz. To verify frequencies 1 kHz and higher, set the detector bandwidth to 300 Hz for faster ≈ 200 readings/s throughput.

7. Source ac voltages for each of the frequencies listed in the Verify the ac voltage 100 mV range (on page 2-12) table.

8. Repeat these steps for each range and frequency listed in the tables below. For each voltage setting, be sure that the reading is within low and high limits.

DMM6500-905-01 Rev. E June 2022 2-11

Section

Calibration and Adjustment Manual

0.1

20 Hz

99.91

100.09

0.1

1 kHz

99.91

100.09

0.1

50 kHz

99.83

100.17

0.1

100 kHz

99.32

100.68

20 Hz

.9991

1.0009

50 kHz

.9983

1.0017

100 kHz

.9932

1.0068

20 Hz

9.991

10.009

50 kHz

9.983

10.017

100 kHz

9.932

10.068

100

20 Hz

99.910

100.09

100

1 kHz

99.910

100.09

100

50 kHz

99.830

100.17

100

100 kHz

99.320

100.68

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

Verify the ac voltage 100 mV range

Nominal value Frequency Lower limit Upper limit

Verify the ac voltage 1 V range

Nominal value Frequency Lower limit Upper limit

1 1 kHz .9991 1.0009

Verify the ac voltage 10 V range

Nominal value Frequency Lower limit Upper limit

10 1 kHz 9.991 10.009

Verify the ac voltage 100 V range

Nominal value Frequency Lower limit Upper limit

Verify ac voltage accuracy for the 750 V range

Use shielded low capacitance cabling. For the 750 V range, avoid cable capacitances of >150 pF.

Excessive capacitance may result in additional load regulation uncertainties and could cause the calibrator output to open (go into standby).

2-12 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

To verify ac voltage accuracy for the 750 V range:

1. Put the calibrator in Standby.

2. Connect the DMM6500 HI and LO INPUT connectors to the calibrator as shown in the following figure.

3. For 750 V at 50 kHz and 100 kHz outputs, connect the calibrator to the Fluke 5725A amplifier.

Figure 3: Connections for ac voltage accuracy verification 750 V range

4. On the DMM6500, press the FUNCTION key and select AC voltage.

5. On the home screen, select the button next to Range and select 750 V.

6. Press the MENU key.

7. Under Measure, select Settings.

8. Ensure that detector bandwidth is set to 30 Hz.

AC voltage is specified for the detector bandwidth setting of 3 Hz. Three Hz measures accurately for input signals from 3 Hz to 300 kHz, with reading rates ≈ 2 readings/s. To improve verification throughput to ≈ 200 readings/s, set detector bandwidth to 30 Hz for frequencies of 30 Hz to 300 kHz. To verify frequencies 1 kHz and higher, set the detector bandwidth to 300 Hz for faster ≈ 200 readings/s throughput.

DMM6500-905-01 Rev. E June 2022 2-13

Section

justment Manual

740

50 Hz

739.33

740.67

740

1 kHz

739.33

740.67

740

100 kHz

734.96

745.04

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning Calibration and Ad

9. Set the calibrator to OPERATE.

10. Source ac voltages for each of the frequencies listed in the "Verify the ac voltage 750 V range" table, below. Be sure that the readings are within low and high limits.

Verify the ac voltage 750 V range

Nominal value Frequency Lower limit Upper limit

740 50 kHz 738.66 741.34

Digitize dc voltage verification

To verify digitize dc voltage accuracy, you will:

• Apply accurate voltages from the calibrator to the terminals on the front panel of the DMM6500.

• Verify that the displayed readings are within specified limits.

Use the values in the tables following the steps below to verify the performance of the DMM6500. Actual values depend on the published specifications (see Example reading limit calculation 2-4)).

The maximum input voltage between INPUT HI and INPUT LO is 1000 V dc and 750 V ac. Exceeding this value may create a shock hazard.

The maximum common-mode voltage (the voltage between INPUT LO and chassis ground) is 500 V

. Exceeding this value may cause a breakdown in insulation that can create a shock

PEAK

hazard.

Verify the digitize voltage 100 mV to 1000 V ranges

Use shielded low-thermal connections when testing the 100 mV and 1 V ranges to avoid errors caused by noise or thermal effects. Connect the shield to the output LO terminal of the calibrator.

(on page

2-14 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

To verify digitize voltage accuracy:

1. Connect the DMM6500 HI and LO INPUT connectors to the calibrator as shown in the following figure.

Figure 4: Connections for digitize voltage verification 100 mV to 1000 V ranges

2. On the DMM6500, press the FUNCTION key, select the Digitize Functions tab, and select Digitize Voltage.

3. On the home screen, select the button next to Range and select 100 mV.

4. Press the MENU key.

5. Under Measure, select Settings.

6. Set the Sample Rate to 1000.

7. Set the Aperture to Auto.

8. Set the Count to 100.

9. Set the calibrator output to 0.00000 mV dc and allow the reading to settle.

10. Press the MENU key.

11. Under Measure, select Calculations.

12. Source positive and negative full-scale and half-scale voltages, as listed in the following table. Verify the 100 mV to 100 V range settings listed in the tables below. For each voltage setting, verify that the STATISTICS swipe screen reading for Average is within low and high limits.

The Fluke 5720A or 5730A calibrator 1000 V range 0.0 V setting is not verified.

DMM6500-905-01 Rev. E June 2022 2-15

Section

Calibration and Adjustment Manual

Full scale (+)

100

99.94

100.06

Half scale (+)

49.95

50.05

Half scale (–)

-50

-50.05

-49.95

Full scale (–)

-100

-100.06

-99.94

Full scale (+)

0.9996

1.0004

Half scale (+)

0.5

0.49975

0.50025

Half scale (–)

-0.5

-0.50025

-0.49975

Full scale (–)

-1

-1.0004

-0.9996

Full scale (+)

9.996

10.004

Half scale (+)

4.9975

5.0025

Half scale (–)

-5

-5.0025

-4.9975

Full scale (–)

-10

-10.004

-9.996

Full scale (+)

100

99.96

100.04

Half scale (+)

49.975

50.025

Half scale (–)

-50

-50.025

-49.975

Full scale (–)

-100

-100.04

-99.96

Half scale (+)

500

499.75

500.25

Half scale (–)

–500

-500.25

-499.75

Full scale (–)

–1000

-1000.4

-999.6

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

Verify the digitize voltage 100 mV range

Description Nominal value Lower limit Upper limit

Verify the digitize voltage 1 V range

Description Nominal value Lower limit Upper limit

Verify the digitize voltage 10 V range

Description Nominal value Lower limit Upper limit

Verify the digitize voltage 100 V range

Description Nominal value Lower limit Upper limit

Verify the digitize voltage 1000 V range

Description Nominal value Lower limit Upper limit

Full scale (+) 1000 999.6 1000.4

2-16 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Frequency verification

To verify frequency accuracy, you will:

• Apply accurate frequencies from the function generator to the terminals on the front panel of the

DMM6500.

• Verify that the displayed readings are within specified limits.

Use the values in the table following the steps below to verify the performance of the DMM6500. Actual values depend on the published specifications (see Example reading limit calculation 2-4)).

1. Connect the Keithley Instruments Model 3390 function generator to the DMM6500 INPUT HI and LO terminals as shown in the following figure.

Figure 5: Connections for frequency verification and adjustment

(on page

2. On the DMM6500, press the FUNCTION key, select the Measure Functions tab, and select Frequency.

3. Select the MENU key.

4. Under Measure, select Settings.

5. Set the Aperture to 250 ms.

6. Set the Threshold Range to 10 V.

7. Press the HOME key.

8. Source the voltage and frequency values as listed in Verify the frequency (on page 2-18

). For

each setting, be sure that the reading is within low and high limits.

DMM6500-905-01 Rev. E June 2022 2-17

Section

libration and Adjustment Manual

10 Hz at 10 V

9.997

10.003

10 kHz at 5 V

9.9991

10.0009

100 kHz at 5 V

100

99.991

100.009

300 kHz at 5 V

300

299.973

300.027

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning Ca

Verify the frequency

Use the following values to verify the performance of the DMM6500. Actual values depend on published specifications (see Example reading limit calculation (on page 2-4

Description Frequency (Hz) Lower limit (Hz) Upper limit (Hz)

1 kHz at 5 V 1 0.9999 1.0001

Simulated thermocouple type J temperature verification

To verify thermocouple accuracy, you will:

• Apply accurate voltages from the calibrator to the terminals on the front panel of the DMM6500.

)).

• Verify that the displayed readings are within specified limits.

Thermocouple accuracy is verified by using a dc voltage calibrator to output values from standard thermocouple tables available from the National Institute of Standards and Technology (NIST) or other sources.

In the table following the steps below, three representative values are listed from a type J thermocouple table for temperatures –190 °C, 0 °C, and 750 °C, with their respective thermocouple voltages listed in the “Uncompensated calibrator source value” column. The calibrator source values are based on NIST Monograph 175, reference data 60, version 2.0.

Verify thermocouple accuracy

Because the cable connecting the calibrator to the DMM6500 can have non-trivial thermal offset voltages, you must first correct for these to verify the DMM6500 specifications.

2-18 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

To verify the simulated thermocouple type J temperature:

1. Connect the DMM6500 HI and LO INPUT terminals to the calibrator HI and LO terminals as shown in the following figure.

Figure 6: Connections for thermocouple verification

2. On the DMM6500, press the FUNCTION key and select DC voltage.

3. Press the MENU key.

4. Under Measure, select Settings.

5. Set the range to 100 mV.

6. Set Input Impedance to Auto.

7. Set autozero to On.

8. Select Integration Rate. The Integration Rate dialog box opens.

9. Set the unit to NPLC.

10. Set NPLC to 1 PLC.

11. Select OK and press the HOME key to return to the Home Screen.

12. Set the calibrator to output 0 V and enable the output.

13. Allow five minutes for settling of the thermal voltage.

14. Record the measured offset voltage to 1 µV precision. If necessary, use the DMM6500 filter settings to reduce the noise of this measurement (for filter settings, go to MENU > Measure Calculations).

15. Press the DMM6500 FUNCTION key and select Temperature.

16. Press the MENU key.

17. Under Measure, select Settings.

DMM6500-905-01 Rev. E June 2022 2-19

Section

Calibration and Adjustment Manual

–190 °C

–7.659 mV

–190.2 °C

–189.8 °C

0 °C

0.000 mV

–0.2 °C

0.2 °C

750 °C

42.281 mV

749.8 °C

750.2 °C

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

18. On the Measure Settings screen, set the following values:

 Units: °C

 Transducer: TC

 Thermocouple: J

 Temperature (simulated reference temperature): 0 °C

 Integration Rate: 1 PLC

 Auto Zero: On

19. Set the calibrator to the simulated thermocouple voltage you want (from the following table), first correcting for the offset voltage measured in step 14. For example, if the measured offset voltage was –2 µV, set the calibrator to –7.659 mV – (–0.002 mV), which equals –7.657 mV, to simulate –190 °C.

20. Verify that the DMM6500 reading is within lower and upper limits.

21. Repeat steps 18 and 19 for each value in the following table.

se the following values to verify the performance of the DMM6500. Actual values depend on

U published specifications (see Example reading limit calculation (on page 2-4

)).

Simulated temperature

Uncompensated calibrator source value (V)

Lower limit Upper limit

Simulated RTD temperature verification

Use the following information to verify the performance of the DMM6500. Actual calibrator source values will vary. RTD verification is based on the calibrator sourcing resistance and the DMM6500 conversion of the resistance measurement to calculated temperature based on the Callendar-Van Dusen equation.

To verify RTD temperature accuracy, you will:

• Apply accurate resistance from the calibrator to the terminals on the front panel of the DMM6500.

• Verify that the displayed readings are within specified limits.

2-20 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

RTD equations

The temperature versus resistance readings listed in the RTD reference tables are calculated using the Callendar-Van Dusen equation. There are two equations that are based on different temperature ranges. There is an equation for the –200 °C to 0 °C range and one for the 0 °C to 850 °C range.

Equation for –200 °C to 0 °C temperature range

= R0 [1 + AT + BT2 + CT3(T – 100)]

RTD

where:

• R

is the calculated resistance of the RTD

RTD

is the known RTD resistance at 0 °C

• T is the temperature in °C

• A = alpha [1 + (delta/100)]

• B = –1 (alpha)(delta)(1E-4)

• C = –1 (alpha)(beta)(1E-8)

The alpha, beta, and delta values are listed in the following table.

Equation for 0 °C to 850 °C temperature range

= R0 (1 + AT + BT2)

RTD

where:

• R

is the calculated resistance of the RTD

RTD

is the known RTD resistance at 0 °C

• T is the temperature in °C

• A = alpha [1 + (delta/100)]

• B = –1 (alpha)(delta)(1E-4)

The alpha and delta values are listed in the following table.

DMM6500-905-01 Rev. E June 2022 2-21

Section

Calibration and Adjustment Manual

PT100

ITS-90

0.00385055

0.10863

1.49990

100.0000

D100

0.003920

0.10630

1.49710

F100

0.003900

0.11000

1.49589

PT385

IPTS-68

0.003850

0.11100

1.50700

PT3916

0.003916

0.11600

1.50594

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

RTD parameters for equations

The RTD parameters for the Callendar-Van Dusen equations are listed in the following table.

DMM6500 resistance to temperature device (RTD)

Type Standard Alpha Beta Delta R0 at 0 °C (Ω)

Verify the simulated RTD temperature

Use the values in the tables following the steps below to verify the performance of the DMM6500. Actual values depend on the published specifications (see Example reading limit calculation 2-4)).

(on page

To verify RTD accuracy:

1. For 4-wire accuracy, connect the DMM6500 INPUT and SENSE terminals to the calibrator as shown in the following figure.

Figure 7: Connections for 4-wire RTD accuracy verification

2-22 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

2. For 3-wire accuracy, connect the DMM6500 INPUT and SENSE terminals to the calibrator as shown in the following figure.

The SENSE HI wire is not required for 3-wire RTD measurements. For 3-wire RTD, accuracy is for < 0.1 Ω lead resistance mismatch for input HI and LO. Add 0.25 °C per 0.1 Ω of HI-LO lead resistance mismatch.

Figure 8: Connections for 3-wire RTD accuracy verification

3. On the DMM6500, press the FUNCTION key and select Temperature.

4. Press the MENU key.

5. Under Measure, select Settings.

6. Select Transducer.

7. Set the Type to 4-wire RTD or 3-Wire RTD.

8. Set the RTD Type to PT100.

9. Press the HOME key.

10. On the calibrator, select 19 Ω source resistance.

11. Select the OPER and EX SNS keys.

12. Record DMM6500 accuracies.

13. Refer to the table for PT100 accuracies.

Fluke 5720 and 5730 resistance source values vary and may require new resistance-to-temperature target accuracy values.

DMM6500-905-01 Rev. E June 2022 2-23

Section

Calibration and Adjustment Manual

1.000000E+02

3.850550E-03

1.086300E-01

3.908304E-03

-5.775440E-07

-4.182852E-12

18.999520

-198.8900

0.0259

0.3241

100

99.99707

-0.0075

0.0235

0.2932

190

189.99234

238.6775

0.0218

0.2725

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

14. Repeat for 100 Ω and 190 Ω source values.

Example PT100

alpha

beta

delta

1.499900E+00

Nominal calibrator value (Ω)

Actual calibrator value (Ω)

Resistance verification

Use the following information to verify the performance of the DMM6500 resistance functions.

Four-wire resistance verification

To verify the 4-wire resistance function, you will:

• Use shielded, Teflon-insulated or equivalent cables in a 4-wire configuration.

• Characterize the calibrator 1 Ω and 10 Ω nominal values with an external reference digital

multimeter (DMM); verify accuracy from the reference DMM readings.

Temperature (°C)

4-wire RTD 3-wire RTD

±0.06 °C accuracy

(±Ω from actual

calibrator value)

±0.75 °C accuracy (±Ω from actual calibrator value)

• For the 100 Ω to 100 MΩ ranges, verify accuracy from actual calibrator source values.

2-24 DMM6500-905-01 Rev. E June 2022

• Verify that the displayed readings are within specified limits.

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

To verify 4-wire resistance accuracy:

1. Connect the DMM6500 INPUT and SENSE terminals to the calibrator as shown in the following figure.

Figure 9: Connections for 4-wire resistance accuracy verification

2. Set the calibrator for 4-wire resistance with external sense on.

3. On the DMM6500, press the FUNCTION key and select 4W Res.

4. Press the MENU key.

5. Under Measure, select Settings.

6. Set Offset Compensation On.

7. Verify that Open Lead Detector is Off.

8. On the home screen, select the button next to Range and select 1 Ω.

9. Source the nominal zero and full-scale resistance values for the 1 Ω to 10 kΩ ranges. Source the nominal zero value for the 100 kΩ range. Refer to the tables in Calculated limits (on page 2-26

10. For the 100 kΩ range, only verify 0 Ω with Offset Compensation set to On.

11. Set Offset Compensation to Off.

12. Verify full-scale 100 kΩ on the 100 kΩ range and 0 and full-scale for the 1 MΩ and 10 MΩ ranges.

13. Verify that the readings are within calculated limits.

When Offset Compensation is set to On, ranges are limited to 1 Ω to 10 kΩ. When Offset

Compensation is set to Off, all ranges (1 Ω to 100 MΩ) are available from all interfaces.

DMM6500-905-01 Rev. E June 2022 2-25

Section

Calibration and Adjustment Manual

0 0 -0.1

0.1 1 0.999973

0.999688

1.000258

0 0 -0.1

0.1

100

0 0 -0.1

0.1

100

99.9975

99.987

100.008

1 K

0 0 -1 1 1

0.99999

0.99991

1.00007

10 K

0 0 -1 1 10

9.99982

9.99901

10.00063

100 K

0 0 -10

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

You can use either the front-panel controls or remote interface commands to set measurement parameters for verification. For calibration, you must use remote interface commands. The example below is an example of remote interface commands that will generate event messages.

To do the same steps over the remote interface, send the commands:

dmm.measure.func = dmm.FUNC_4W_RESISTANCE dmm.measure.offsetcompensation.enable = dmm.OCOMP_ON dmm.measure.range = 1e6

The following warning message is displayed:

1131, Parameter, measure range, expected value from 1 to 100000

Set dmm.measure.offsetcompensation.enable = dmm.OCOMP_OFF, and then set

dmm.measure.range = 1e6 to run without warnings.

Verify that the readings are within calculated limits.

The values and limits in the following tables are for example only. You must calculate test limits based on the actual resistance values output by your calibrator or resistance source (see

Example

reading limit calculation (on page 2-4)).

Range (Ω)

Nominal calibrator values (Ω)

Typical reference DMM reading (Ω)

Lower limit (Ω)

Upper limit (Ω)

10 9.99983 9.99878 10.00088

Range (Ω)

Nominal calibrator values (Ω)

Actual calibrator value (Ω)

Lower limit (Ω)

Upper limit (Ω)

2-26 DMM6500-905-01 Rev. E June 2022

DMM6500

ion

1 M

0 0 -1 1 1

0.999966

0.99986

1.000072

10 M

0 0 -1 1 10

9.99931

9.99521

10.00341

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2: Performance verificat

Four-wire resistance verification with offset compensation off

The values and limits in the following tables are for example only. You must calculate test limits based on the actual resistance values output by your calibrator or resistance source (see

Example reading

limit calculation (on page 2-4)).

For 10 MΩ verification, the Sense HI cable is optional. Measurement is with Input HI and LO and

Sense LO only.

Range (Ω)

100 K 100 100.0012 99.9928 100.0098

Nominal calibrator values (Ω)

Verify 2-wire resistance accuracy

To verify the 2-wire resistance function 100 MΩ range, you will:

• Use shielded, Teflon-insulated or equivalent cables in a 2-wire configuration.

• Apply accurate resistance from the calibrator to the terminals on the front panel of the DMM6500.

• Verify that the displayed readings are within specified limits.

Verify resistance 100 MΩ range

To verify the 100 MΩ range:

Actual calibrator value (Ω)

Lower limit (Ω)

Upper limit (Ω)

1. Connect the DMM6500 INPUT to the calibrator as shown in the following figure.

DMM6500-905-01 Rev. E June 2022 2-27

Section

Calibration and Adjustment Manual

100 M

0 0 -10

100

100.001

99.798

100.204

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

Figure 10: Connections for 100 MΩ verification

2. Set the calibrator for 2-wire resistance with external sense off.

3. On the DMM6500, press the FUNCTION key and select 2W Res.

4. On the home screen, select the button next to Range and select 100 MΩ.

5. Source the nominal full-scale resistance values for the 100 MΩ range as shown in the following table.

The values and limits in the following tables are for example only. You must calculate test limits based on the actual resistance values output by your calibrator or resistance source (see

Example

reading limit calculation (on page 2-4)).

Range (Ω) Nominal calibrator

values (Ω)

Actual calibrator

(Ω)

Lower limit (Ω) Upper limit (Ω)

2-28 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

DC current verification

The DMM6500 dc current ranges can be verified using several methods, depending on the level of measurement uncertainty required. This manual describes the verification procedure using a Fluke 8508A or 8588A reference digital multimeter (DMM) in series with the DMM6500 to determine the nominal test current value for the 10 µA to 100 mA ranges. For the 1 A to 10 A ranges, this manual describes using direct output from a Fluke Model 5720A or 5725A calibrator.

These configurations are adequate for most purposes, but may not provide sufficient test uncertainty ratio (TUR) for some users. You must evaluate the measurement uncertainties and ensure that they are adequate for your use.

DC current 10 µA to 100 mA range verification

When verifying dc current on the 10 µA to 100 mA ranges, systematic calibrator and cable offsets must be compensated and test limits calculated based on reference digital multimeter (DMM) readings.

In the following section, offset measurements may exceed DMM6500 zero-current measurement specifications due to systematic source offset current from the test setup.

To verify the DMM6500 specifications with zero input current, disconnect all cables and calibrators from the DMM6500 input. This is a separate setup from that used in the procedure below for mid-scale and full-scale readings.

DMM6500-905-01 Rev. E June 2022 2-29

Section

Calibration and Adjustment Manual

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

To prepare the DMM6500 for dc current accuracy verification:

1. Set up the DMM6500 for dc current and the range being tested. Make sure relative offset is disabled.

2. Connect the calibrator, DMM6500, and reference DMM as shown in the following figure.

Figure 11: Connection for dc current

To verify DMM6500 accuracy for each range:

1. Set the calibrator to source zero current.

2. Set the reference DMM to DC Current and select the appropriate range to be verified. Use the Model 8508A or 8588A 200 µA range to verify the DMM6500 10 µA and 100 µA ranges. Use the Model 8508A or 8588A 2 mA, 20 mA, and 200 mA ranges to verify the DMM6500 1 mA, 10 mA, and 100 mA ranges, respectively.

3. On the calibrator, select the OPR/STBY key. Make sure that the front panel displays OPERATE.

4. On the DMM6500, press the MENU key.

5. Select Calculations. The Calculation Settings screen is displayed.

6. On the reference DMM, zero the range for system offset.

7. Set the calibrator to source the current for the range you are verifying (listed in the 1 mA verification table in Test limit calculation for 10 µA to 100 mA ranges).

2-30 DMM6500-905-01 Rev. E June 2022

DMM6500

rmance verification

10 µA

0.00500

100 µA

100

0.0500

0.00275

0.0275

–5

0.00275

–50

0.0275

1 mA

0.000500

10 mA

0.00250

0.5

0.000275

5 0.00150

–0.5

0.000275

–5

0.00150

–1

0.000500

–10

0.00250

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2: Perfo

8. Note the offset-compensated reference DMM reading, and calculate limits based on DMM6500 specifications (use the reference DMM reading as the expected value and verify the DMM6500 accuracy from the calculated reference DMM current).

Test limit calculation for 10 µA to 100 mA ranges

The following tables list nominal test current for 10 µA to 100 mA ranges. Test limits must be calculated relative to actual current, as determined by the reference digital multimeter (DMM) measurement. For example, using a specification of 60 ppm of reading + 9 ppm of range on the 10 mA range, the reference DMM measures 5.00012 mA on the nominal 5 mA test.

Specification tolerance = 5.00012 (mA) × 60 ppm + 10 (mA) × 9 ppm = 0.000390072 mA

Lower test limit = 5.00012 – 0.000390072 = 4.999729928 mA

Upper test limit = 5.00012 + 0.000390072 = 5.000510072 mA

Although the specification tolerance calculated above from the actual test current differs slightly from the values listed in the table (based on nominal value), this difference is generally much smaller than the measurement uncertainty and can be ignored. As a result, the test limits can be calculated from the table specification tolerance as:

Lower test limit = 5.00012 – 0.00039 = 4.99973 mA

Upper test limit = 5.00012 + 0.00039 = 5.00051 mA

9. Repeat steps 1 through 8 for all ranges (10 µA through 100 mA).

Range Nominal

input (µA)

–10 0.00500 –100 0.0500

Specification tolerance (µA) (based on nominal)

Range Nominal

input (µA)

Specification tolerance (µA) (based on nominal)

Range Nominal

input (µA)

Specification tolerance (µA) (based on nominal)

Range Nominal

input (µA)

Specification tolerance (µA) (based on nominal)

DMM6500-905-01 Rev. E June 2022 2-31

Section

Calibration and Adjustment Manual

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

DC current 100 mA to 3 A range verification

To verify dc current accuracy on the 100 mA to 3 A ranges, you will:

• Apply accurate current from the dc current calibrator directly to the DMM6500 front-panel

terminals.

• Verify that the displayed readings are within specified limits.

To verify dc current accuracy:

1. Set up the DMM6500 for dc current and the range being tested. Make sure that relative offset is disabled.

2. Connect the DMM6500 and calibrator as shown in the following figure.

Figure 12: Connections for 100 mA to 3 A range verification

Zero verify the DMM6500:

1. On the calibrator, select the OPR/STBY key. Make sure that the front panel displays STANDBY.

2. Set the ranges to 100 mA.

3. Verify the DMM6500 zero reading for each range.

4. Source dc current from the following table. For each setting, be sure that the reading is within stated limits.

5. Repeat these steps for the 1 A and 3 A ranges.

2-32 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

Full scale (+)

100

99.975

100.025

Half scale (+)

49.985

50.015

Half scale (–)

-50

-50.015

-49.985

Full scale (–)

-100

-100.025

-99.975

Full scale (+)

0.99955

1.00045

Half scale (+)

0.5

0.49975

0.50025

Half scale (–)

–0.5

-0.50025

-0.49975

Full scale (–)

–1

-1.00045

-0.99955

Half scale (+)

1.5

1.49913

1.50087

Half scale (–)

–1.5

–1.50087

–1.49913

*Full scale (–)

–2

–2.00112

–1.99888

* The 3 A range full-scale test points are limited to 2 A in this table because of the accuracy limitations of Fluke Models 57xxA and 5725A series calibrators at currents above 2.2 A.

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Verify dc current 100 mA range

Description Calibrator

Verify dc current 1 A range

Description Calibrator

Verify dc current 3 A range

Description Calibrator

*Full scale (+) 2 1.99888 2.00112

Lower limit Upper limit

setpoint (A)

Lower limit Upper limit

setpoint (A)

Lower limit Upper limit

setpoint (A)

Verify dc current 10 A range

See DC current 10 A range verification (on page 2-43) under Rear-panel verification (on page 2-43).

Digitize current verification

The following topics describe how to verify digitized dc current on the DMM6500.

DMM6500-905-01 Rev. E June 2022 2-33

Section

Calibration and Adjustment Manual

Full scale (+)

99.998

99.878

100.118

Half scale (+)

49.9991

49.9141

50.0841

Half scale (–)

-49.993

-50.0843

-49.9143

Full scale (–)

-99.9985

-100.1185

-99.8785

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

Verify digitize current 100 µA to 3 A ranges

To verify digitize dc current accuracy:

1. Connect the DMM6500 and calibrator as shown in the following figure.

Figure 13: Connections for digitize dc current 10 µA to 3 A range verification

2. Press the FUNCTION key.

3. Select the Digitize Functions tab and select Digitize Current.

4. Press the HOME key.

5. Set the Range to 10 µA.

6. Press the MENU key.

7. Under Measure, select Settings.

8. Set the Sample Rate to 1000.

9. Set the Aperture to Auto or 1 ms.

10. Set the Count to 100.

11. Source positive and negative full-scale and half-scale currents, as listed in the following tables.

12. Repeat these steps for the 1 mA to 3 A range settings listed in the following tables.

Verify digitize current 100 µA range

Description Calibrator setpoint

(A)

Lower limit Upper limit

2-34 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

Full scale (+)

0.999993

0.998993

1.000993

Half scale (+)

0.499998

0.499348

0.500648

Half scale (–)

-0.500009

-0.500659

-0.499359

Full scale (–)

-1.000017

-1.001017

-0.999017

Full scale (+)

10.00004

9.99204

10.00804

Half scale (+)

5.00004

4.99454

5.00554

Half scale (–)

-5.00003

-5.00553

-4.99453

Full scale (–)

-10.00006

-10.00806

-9.99206

Full scale (+)

100

99.92

100.08

Half scale (+)

49.945

50.055

Half scale (–)

-50

-50.055

-49.945

Full scale (–)

-100

-100.08

-99.92

Full scale (+)

0.999

1.001

Half scale (+)

0.5

0.49935

0.50065

Half scale (–)

–0.5

-0.50065

-0.49935

Full scale (–)

–1

-1.001

-0.999

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Verify digitize current 1 mA range

Description Calibrator setpoint

(A)

Verify digitize current 10 mA range

Description Calibrator setpoint

(A)

Verify digitize current 100 mA range

Description Calibrator setpoint

(A)

Lower limit Upper limit

Verify digitize current 1 A range

Description Calibrator setpoint

(A)

Lower limit Upper limit

DMM6500-905-01 Rev. E June 2022 2-35

Section

Calibration and Adjustment Manual

*Full scale (+)

1.997

2.003

Half scale (+)

1.5

1.49745

1.50255

Half scale (–)

–1.5

–1.50255

–1.49745

*Full scale (–)

–2

–2.003

–1.997

* The 3 A range full-scale test points are limited to 2 A in this table because of the accuracy limitations of Fluke Models 57xxA and 5725A series calibrators at currents above 2.2 A.

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

Verify digitize current 3 A range

Description Calibrator setpoint

(A)

Lower limit Upper limit

Verify digitize current 10 A range

See Digitize current 10 A range verification (on page 2-45) under Rear-panel verification (on page 2-

43).

AC current verification

The following topics describe how to verify ac current.

Verify ac current on the 100 µA to 3 A ranges

To verify ac current accuracy, you will:

• Apply accurate voltages from the Fluke 5720A or 5730A multifunction calibrator to the DMM6500

front-panel terminals.

• Verify that the displayed readings fall within specified limits.

Use the values in the following tables to verify the performance of the DMM6500. Actual values depend on the published specifications (see Example reading limit calculation (on page 2-4

To verify ac current accuracy:

1. On the DMM6500, press the FUNCTION key and select AC Current.

2. Press the HOME key.

3. Set the range you are verifying.

4. Press the MENU key.

5. Under Measure, select Settings.

6. Make sure that Detector Bandwidth is set to 30 Hz.

)).

2-36 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

100 µA at 20 Hz

100

99.83

100.17

100 µA at 1 kHz

100

99.83

100.17

1 mA at 20 Hz

0.9986

1.0014

1 mA at 1 kHz

0.9986

1.0014

1 mA at 4.9 kHz

0.9986

1.0014

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

AC current is specified for the detector bandwidth setting of 3 Hz. 3 Hz measures accurately for input signals from 3 Hz to 10 kHz, with reading rates of ≈ 0.5 readings/s. To improve verification throughput to ≈ 3.3 readings/s, set detector bandwidth to 30 Hz for frequencies of 30 Hz to 10 kHz. To verify frequencies 1 kHz and higher, set the detector bandwidth to 300 Hz for faster ≈ 55 readings/s throughput.

7. Connect the DMM6500 to the calibrator as shown in the following figure.

Figure 14: Connections for ac current verification

8. Source ac current for each of the frequencies listed in the following tables.

9. For each setting, make sure that the reading is within low and high limits.

Verify ac current 100 µA range

Description Verification point Lower limit Upper limit

Verify ac current 1 mA range

Description Verification point Lower limit Upper limit

DMM6500-905-01 Rev. E June 2022 2-37

Section

Calibration and Adjustment Manual

10 mA at 40 Hz

9.986

10.14

10 mA at 1 kHz

9.986

10.14

10 mA at 4.9 kHz

9.986

10.14

100 mA at 40 Hz

100

99.86

100.14

100 mA at 1 kHz

100

99.86

100.14

100 mA at 4.9 kHz

100

99.86

100.14

1 A at 40 Hz

1.000

0.9986

1.0014

1 A at 4.9 kHz

1.000

0.9986

1.0014

2 A at 40 Hz

2.000

1.9952

2.0048

2 A at 1 kHz

2.000

1.9952

2.0048

2 A at 4.9 kHz

2.000

1.9952

2.0048

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

Verify ac current 10 mA range

Description Verification point Lower limit Upper limit

Verify ac current 100 mA range

Description Verification point Lower limit Upper limit

Verify ac current 1 A range

Description Verification point Lower limit Upper limit

1 A at 1 kHz 1.000 0.9986 1.0014

Verify ac current 3 A range

Description Verification point Lower limit Upper limit

Verify ac current 10 A range

See AC current 10 A verification (on page 2-47) under Rear-panel verification (on page 2-43).

2-38 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Capacitance verification

To compensate for capacitance offset of the cable and 1 µF thru 100 µF decade box:

1. Connect the DMM6500, shielded banana cable, banana to dual BNC cable, and 1 µF through 100 µF decade capacitor box as shown in the following diagram.

Figure 15: Connect DMM6500 to decade capacitor box

2. Set the decade capacitor box to 0 F.

3. On the DMM6500, press the FUNCTION key, select the Measure Functions tab, and select Capacitance.

4. Press the MENU key.

5. Under Measure, select Settings.

6. Set the Range to 1 nF.

7. Press the MENU key.

DMM6500-905-01 Rev. E June 2022 2-39

Section

Calibration and Adjustment Manual

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

8. Select Calculations and select Rel, then Acquire.

Cabling could be as high as ≈ 300 pF, which could prevent full-scale verification due to the large cable capacitance offset. Cable lengths should be minimized to reduce cable capacitance as much as possible.

9. Connect the shielded banana cable to the 1 nF to 1 µF Decade Capacitance Box as shown in the figure below.

Figure 16: Capacitance verification connections

10. Verify capacitance following the verification points and accuracies from the table below.

2-40 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

1 nF range cable REL

0.375

0.25

0.5

10% 1 nF range

0.1

0.0942

0.1058

70% 1 nF range

0.7

0.6894

0.7106

10% 10 nF range

0.986

1.014

100% 10 nF range

9.95

10.05

100% 100 nF range

100

99.5

100.5

10% 1 µF range

0.1

0.0986

0.1014

100% 1 µF range

0.995

1.005

10% 10 µF range

0.986

1.014

10% 100 µF range

9.86

10.14

100% 100 µF range

100

99.5

100.5

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Verify the capacitance

Description Verification point Lower limit (F) Upper limit (F)

10% 100 nF range 10 9.86 10.14

100% 10 µF range 10 9.95 10.05

Verifying zero values using a 4-wire short

Four-wire short verifications are not included in the Customer Calibration Data Report.

To verify zero values using a 4-wire short, you will:

• Check the zero values of various test points with 4-wire connections to the DMM6500 front or rear

terminals.

• Verify that the displayed readings are within specified limits.

DMM6500-905-01 Rev. E June 2022 2-41

Section

Calibration and Adjustment Manual

-0.0002

0.0002

-0.0002

0.0002

100

-0.002

0.002

1 k

-0.006

0.006

10 k

-0.06

0.06

100 k

-1

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

Verify resistance zero values using a 4-wire short

To verify resistance zero values:

1. Select the 4W Res function.

2. Set the DMM6500 to the 1Ω range.

3. Press the MENU key.

4. Under Measure, select Settings.

5. Set the Offset Compensation to On.

6. Connect the Model 8610 or 8620 4-wire short to the front panel as shown in the following figure.

7. Allow to settle for 5 minutes. Do not use relative offset.

Figure 17: Front panel 4-wire shorting plug orientation

8. Verify that the 1 Ω range is within specification (see the following table).

9. Repeat verification for the 10 Ω to 100 kΩ ranges.

Verify 4-wire resistance zero values

Range (Ω) Lower limit Upper limit

2-42 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

1000

-6000

6000

-50

50 1 -6 6 100 mV

-3.5

3.5

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Verify dc voltage zero values using the 4-wire short

To verify dc voltage zero values:

1. Leave the short connected as described in Verify resistance zero values using a 4-wire short page 2-42).

2. Press the FUNCTION key.

3. Select the DC Voltage function.

4. Press the HOME key.

5. Set the range to 1000 V.

DC voltage verification is done in descending range order, starting with the 1000 V range and finishing on the 100 mV range.

6. Verify that the 1000 V range zero is within specification. See the table below.

7. Verify that the 100 V to 100 mV range zero is within specification.

Verify dc voltage zero values

Range Lower limit Upper limit

100 -600 600

(on

Rear-panel verification

The following topics describe verification procedures that are done with connections attached to the terminals on the DMM6500 rear panel.

DC current 10 A range verification

To verify 10 A range:

1. Set the TERMINALS switch to REAR.

2. Press the FUNCTION key and select DC Current.

3. Press the HOME key.

4. Set the range to 10A.

DMM6500-905-01 Rev. E June 2022 2-43

Section

Manual

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment

5. Connect the DMM6500, reference DMM, calibrator, and amplifier as shown in the following figure.

Ensure cabling is designed to conduct 10 A without significant voltage drop. In general, cables for the 10 A range steps should be made of heavy gauge wire and should be as short as practical.

Figure 18: Connections for dc current verification 10 A range

Apply a relative offset to the DMM6500:

1. On the calibrator, select the OPR/STBY key. Ensure that the front panel displays STANDBY.

2. Verify the DMM6500 zero reading.

3. Verify the dc current verification points and reference DMM readings from the following table.

2-44 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

Full scale (+)

9.99961

9.9755

10.0245

Half scale (+)

4.99984

4.9865

5.0135

Half scale (–)

–5

–5.00079

-5.0135

-4.9865

Full scale (–)

–10

–10.0016

-10.0245

-9.9755

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

Verify dc current 10 A range

Description Nominal input Typical measured

input (A)

Digitize current 10 A range verification

Ensure cabling is designed to conduct 10 A without significant voltage drop. In general, cables for the 10 A range steps should be made of heavy gauge wire and should be as short as practical.

To verify the 10 A range:

1. Connect DMM6500, calibrator, and amplifier as shown in the following figure.

Figure 19: Connections for the 10 A range

Lower limit Upper limit

DMM6500-905-01 Rev. E June 2022 2-45

Section

Calibration and Adjustment Manual

UUT Zero

-0.008

0.008

Full scale (+)

9.967

10.033

Half scale (+)

4.9795

5.0205

Half scale (–)

–5

–5.0205

–4.9795

Full scale (–)

–10

–10.033

–9.967

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning

2. Set the TERMINALS switch to REAR.

3. Press the FUNCTION key, select the Digitize Functions tab, and select Digitize Current.

4. Press the HOME key.

5. Set the range to 10A.

6. Press the MENU key.

7. Under Measure, select Settings.

8. Set the sample rate to 1000.

9. Set the aperture to Auto or 1 ms.

10. Set the count to 100.

Verify the DMM6500 zero:

1. On the calibrator, select the OPR/STBY key. Make sure that the front panel displays STANDBY.

2. Verify the DMM6500 zero reading for each range.

3. On the calibrator, select the OPR/STBY key. Make sure that the front panel displays OPERATE.

4. Enable the calibrator Amplifier and select the BOOST key.

5. On the calibrator, set the amplifier range lock to ON.

6. Set the calibrator output to 0.00000 ADC and allow the reading to settle.

7. Press the MENU key.

8. Select Calculations.

9. Source positive and negative full-scale and half-scale currents, as listed in the following table.

10. Verify that the STATISTICS swipe screen reading for average is within low and high limits.

Verify digitize current 10 A range

Description Calibrator setpoint

(A)

Lower limit Upper limit

2-46 DMM6500-905-01 Rev. E June 2022

DMM6500

Performance verification

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2:

AC current 10 A verification

Verify that the displayed readings are within specified limits.

Use the values in the tables following the steps below to verify the performance of the DMM6500. Actual values depend on the published specifications (see Example reading limit calculation 2-4)).

To verify the ac current accuracy:

1. Set the TERMINALS switch to REAR.

2. Press the FUNCTION key, select the Measure Functions tab, and select AC Current.

3. Press the HOME key.

4. Set the range to 10A.

5. Press the MENU key.

6. Under Measure, select Settings.

7. Make sure that detector bandwidth is set to 30 Hz.

(on page

AC current is specified for the detector bandwidth setting of 3 Hz. 3 Hz measures accurately for input

signals from 3 Hz to 10 kHz, with reading rates of ≈ 0.5 readings/s. To improve verification throughput to ≈ 3.3 readings/s, set detector bandwidth to 30 Hz for frequencies of 30 Hz to 10 kHz. To verify frequencies 1 kHz and higher, set the detector bandwidth to 300 Hz for faster ≈ 55

readings/s throughput.

8. Connect the DMM6500 to the calibrator and amplifier as shown in the following figure.

Ensure cabling is designed to conduct 10 A without significant voltage drop. In general, cables for the 10 A range steps should be made of heavy gauge wire and should be as short as practical.

DMM6500-905-01 Rev. E June 2022 2-47

Section

n and Adjustment Manual

40 Hz

9.954

10.046

1 kHz

9.954

10.046

4.9 kHz

9.954

10.046

2: Performance verification DMM6500 6½-Digit Multimeter with Scanning Calibratio

Figure 20: Connections for the 10 A range

9. Enable the calibrator amplifier and select the BOOST key.

10. On the calibrator, set the amplifier range lock to ON.

11. Source ac current for each of the frequencies listed in the following table.

12. On the calibrator, select OPR/STBY key. Make sure that the front panel displays OPERATE.

13. For each setting, allow the calibrator and amplifier to settle properly and verify the reading is within low and high limits.

Verify ac current 10 A range

Description Verification point Lower limit Upper limit

2-48 DMM6500-905-01 Rev. E June 2022

Handling events ..................................................................... 3-48

Section 3

Adjustment

In this section:

Introduction .............................................................................. 3-1

Environmental conditions ......................................................... 3-2

Warmup period ......................................................................... 3-2

Adjustment overview ................................................................ 3-3

Recommended test equipment ................................................ 3-3

General adjustment considerations .......................................... 3-4

Initial instrument setup ............................................................. 3-5

Remote calibration adjustment procedures .............................. 3-7

Enable temperature correction ............................................... 3-46

Save calibration and set the adjustment dates ....................... 3-46

Setting time, adjustment, and verification dates ..................... 3-47

Adjustment command timing and error checking ................... 3-47

Introduction

Use the procedures in this section to adjust the DMM6500 calibration.

DMM6500 performance is specified for a period of 90 days, 1 year, or 2 years from adjustment. Adjustment should be performed at one of these intervals, depending on your specification requirements.

Performance is specified relative to calibration adjustment temperature (T adjustment is performed at 23 °C ± 1 °C.

Some of these procedures may expose you to hazardous voltages, that if contacted, could cause personal injury or death. Use appropriate safety precautions when working with hazardous voltages.

). Keithley factory

CAL

Section

Calibration and Adjustment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Environmental conditions

To make sure you get accurate results, the environment must meet the following conditions.

Temperature and relative humidity

Conduct the adjustment procedures in a test environment with:

• A stable ambient temperature controlled to vary less than ±1 °C during the period of adjustment.

• Keithley Instruments recommends a calibration adjustment temperature (T

different nominal temperature is used, it should be noted on the calibration report. A relative humidity of less than or equal to 40 percent, unless otherwise noted.

• No direct airflow on the input terminals.

Line power

The DMM6500 requires a line voltage of 100 V to 240 V and a line frequency of 400 Hz, 50 Hz or 60 Hz.

Calibration adjustments should be performed within this range.

The instrument automatically senses the line frequency at power-up.

Warmup period

Allow the DMM6500 to warm up for at least 30 minutes before conducting the adjustment procedures.

) of 23 °C. If a

CAL

Also allow the test equipment to warm up for the time recommended by the manufacturer.

3-2 DMM6500-905-01 Rev. E June 2022

CAL

DMM6500

Adjustment

Fluke

5720A or 5730A

High Performance

DCV, 10 A DCI, ACV, ACI, and 10 kΩ

Fluke

5725A

Amplifier

DCI and ACI 10 A ranges

Fluke

8508A or 8588A

8.5 Digit Reference Multimeter

DCI

Keithley Instruments

3390

Function/Arbitrary Waveform Generator

Frequency

Keithley Instruments

8610 or 8620

4-Wire DMM Shorting Plug

DCV, digitize DCV, and resistance

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Adjustment overview

DMM6500 adjustment is performed using a remote connection through either an optional GPIB, LAN, or USB interface. The calibration adjustment commands provided in this manual use the Test Script

Processor (TSP

) command language. There is no front-panel method for full adjustment.

You can use the Keithley Test Script Builder to send you adjustment commands. See "Test Script Builder (TSB)" in the Model DMM6500 Reference Manual (DMM6500-901-01).

To use GPIB with your DMM6500, you must use the KTTI-GPIB Communication and Digital I/O Accessory.

Recommended test equipment

The following table summarizes the recommended calibration equipment. Specified accuracy of all functions and ranges is dependent on the precision of reference signals used during the adjustment process. To achieve specified performance, adjustment reference uncertainties must be at least four times smaller than the best corresponding DMM6500 one-year accuracy specification for measuring that signal.

Manufacturer Model Description Used for:

Multifunction Calibrator

resistance

Refer to the manufacturer's specifications to calculate the uncertainty, which varies for each function and range test point.

DMM6500-905-01 Rev. E June 2022 3-3

Section

justment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning Calibration and Ad

General adjustment considerations

• DMM6500 dc voltage performance is sensitive to errors from thermoelectric potentials generated

by test cables and connections. Be sure to use high-quality cables and connection techniques. When changing a connection during the adjustment process, be sure to allow time (up to five minutes) for thermal settling. Also allow thermal settling time, typically 60 seconds, when changing the TERMINALS FRONT/REAR switch position during adjustment.

• Calibration steps are performed on both rear and front inputs as described in sections below. Be

sure that the TERMINALS FRONT/REAR switch is in the proper position before sending adjustment commands.

• The Keithley Models 8610 and 8620 4-wire shorts connect all four terminals electrically, but the

layout of the board traces makes DMM6500 adjustment sensitive to their orientation. Note the HI/LO terminal markings and be sure to insert connections in the correct orientation. Note that the DMM6500 rear input terminals are rotated 90° compared to front-panel inputs.

• During adjustment steps using a calibrator reference source, be sure the calibrator reference

signal has fully settled before sending adjustment commands to the DMM6500.

The maximum input voltage between INPUT HI and INPUT LO is 1000 V dc and 750 V ac. Exceeding this value may create a shock hazard.

The maximum common-mode voltage (the voltage between INPUT LO and chassis ground) is 500 V

. Exceeding this value may cause a breakdown in insulation that can create a shock

PEAK

hazard.

Some of these procedures may expose you to hazardous voltages, that if contacted, could cause personal injury or death. Use appropriate safety precautions when working with hazardous voltages.

3-4 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Initial instrument setup

Before adjusting calibration, make sure that the instrument is set up:

• For remote operation and TSP commands.

• To the correct date and time.

You must also unlock calibration.

Select the correct terminals

On the DMM6500, you must adjust calibration from both the front and rear terminals. You can verify calibration on either the front or rear terminals. To set the instrument to the rear-panel terminals, press the TERMINALS switch on the front panel of the instrument.

Select the TSP command set

Calibration adjustment must be performed by remote control using LAN, USB, or optional GPIB interfaces. No front-panel calibration commands are available.

Calibration is only available using TSP commands. See the instructions below to change the command set.

To set the command set from the front panel:

1. Press the MENU key.

2. Under System, select Settings.

3. For Command Set, select TSP.

4. You are prompted to reboot.

To verify which command set is selected from a remote interface:

Send the command:

*LANG?

To change to the TSP command set from a remote interface:

Send the command:

*LANG TSP

Reboot the instrument.

DMM6500-905-01 Rev. E June 2022 3-5

Section

Calibration and Adjustment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Verify instrument date and time

Before adjusting calibration, verify the system date of the DMM6500.

From the front panel:

1. Press the MENU key.

2. Under System, select Settings. The SYSTEM SETTINGS menu opens.

3. Verify the date and time.

4. If necessary, correct the date and time.

Set up remote connections

For detail on remote communications, refer to the DMM6500 Reference Manual section "Remote communications interfaces."

Calibration adjustment is performed by connecting reference signals to the DMM6500 and sending a series of adjustment commands using one of the remote interfaces. The adjustment procedure may be done interactively, programmatically, or using a combination of the two.

• Interactive: Manually set up and connect each reference signal, then send the appropriate

calibration adjustment command.

• Programmatic: A computer performs setup of calibrator source instruments and controls

appropriate settling delays before automatically sending calibration adjustment commands to the DMM6500. The control program must determine when the adjustment step is complete and check for adjustment errors before continuing to the next step.

The following section describes the DMM6500 adjustment commands that are used for a manual interactive adjustment procedure. Techniques for controlling automated program timing and error checking are described in Adjustment command timing and error checking (on page 3-47

Unlock calibration

To start making adjustments, you must unlock it by sending the calibration password:

cal.unlock("KI000CAL")

KI000CAL is the default password. You can change the password. Refer to cal.password (on page

4-7) for details.

3-6 DMM6500-905-01 Rev. E June 2022

DMM6500

ustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3: Adj

Disable temperature correction

Even though temperature correction does not affect calibration, it must be disabled while calibration is being performed.

cal.adjust.step.setup("TC_EN") cal.adjust.step.execute("TC_EN", 0)

Remote calibration adjustment procedures

The front-panel display does not show calibration progress or completion.

The following sections provide the preparation and command parameters that you need to complete adjustments to you DMM6500. The preparation sections provide information necessary for making connections and other equipment needed for that adjustment. The command parameter tables are meant to run through in any order allowing you to adjust just the parameters you need. For a complete adjustment, run through these sections in order, making the preparations and running all the command parameters.

You will send each command parameter twice. The first time you use the setup command, and the second time you will use the execute command. More information on these commands can be found in the TSP command reference (on page 4-4

cal.adjust.step.setup cal.adjust.step.execute

). The two commands used are:

Disable temperature correction

Before you start your adjustment, you must turn off temperature correction. Run the following commands to turn off temperature correction.

cal.adjust.step.setup("TC_EN") cal.adjust.step.execute("TC_EN", 0)

Front-terminal adjustment with a 4-wire short

The following procedure provides instructions for completing a front-terminal adjustment using a 4-wire short. The following section provides a command parameter table to complete the adjustment.

For this adjustment, you need a:

• Keithley Model 8610 or Model 8620 Low Thermal Shorting Plug.

DMM6500-905-01 Rev. E June 2022 3-7

Section

Calibration and Adjustment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Prepare your DMM6500 for a front-terminal adjustment with a 4-wire

short

To prepare the DMM6500 for a front-terminal adjustment with a 4-wire short:

1. Set the TERMINALS switch to FRONT.

2. Install the Keithley Model 8610 or 8620 shorting plug on the front terminals of the DMM6500 as shown in the figure below.

The shorting plug terminals must be connected so that HI and LO are correctly aligned. Zero accuracy will be affected if the shorting plug terminals are not aligned correctly.

Figure 21: Connection for a front-panel adjustment with a 4-wire short

3. Allow to settle for five minutes.

3-8 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

cal_DCV_100mV_zero_front

cal_DCV_DIGI_100mV_zero

cal_DCV_1V_zero_front

cal_DCV_DIGI_1V_zero

cal_DCV_10V_zero_front

cal_sense_10V_zero_front

cal_DCV_DIGI_10V_zero

cal_DCV_100V_zero_front

cal_DCV_DIGI_100V_zero

cal_DCV_1kV_zero_front

cal_DCV_DIGI_1kV_zero

cal_4W_1ohm_zero_front

cal_2W_10ohm_zero_front

cal_4W_10ohm_zero_front

cal_2W_100ohm_zero_front

cal_4W_100ohm_zero_front

cal_2W_1kohm_zero_front

cal_3W_1kohm_zero_front

cal_3W_1kohm_Hi_zero_front

cal_3W_1kohm_SLO_zero_front

cal_4W_1kohm_zero_front

cal_2W_10kohm_zero_front

cal_3W_10kohm_zero_front

cal_3W_10kohm_SLO_zero_front

cal_4W_10kohm_zero_front

cal_2W_100kohm_zero_front

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Command parameters for a front-terminal adjustment with a 4-wire

short

When calibrating your DMM6500 for a front-terminal adjustment with a 4-wire short, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first command parameter from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_DCV_100mV_zero_front") cal.adjust.step.execute("cal_DCV_100mV_zero_front")

Command parameters

DMM6500-905-01 Rev. E June 2022 3-9

Section

Calibration and Adjustment Manual

cal_3W_100kohm_SLO_zero_front

cal_4W_100kohm_zero_front

cal_2W_1Mohm_zero_front

cal_4W_1Mohm_zero_front

cal_2W_HiOhm_zero_front

cal_4W_HiOhm_zero_front

cal_4W_HiOhm_zero_sense

cal_diode_10mA_zero_front

cal_diode_1mA_zero_front

cal_diode_100uA_zero_front

cal_diode_10uA_zero_front

cal_ACV_1V_zero

cal_ACV_10V_zero

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Rear-terminal adjustment with a 4-wire short

The following procedure provides instructions for completing a rear-terminal adjustment using a 4wire short. The following section provides a command parameter table to complete the adjustment.

For this adjustment, you need a:

• Keithley Model 8610 or Model 8620 Low Thermal Shorting Plug

3-10 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Prepare your DMM6500 for a rear-terminal adjustment with a 4-wire

short

To prepare the DMM6500 for rear-terminal adjustment:

1. Set the TERMINALS switch to REAR.

2. Install the Keithley Model 8610 or 8620 shorting plug on the rear terminals of the DMM6500 as shown in the figure below.

The shorting plug terminals must be connected so that HI and LO are correctly aligned. Zero accuracy will be affected if the shorting plug terminals are not aligned correctly.

Figure 22: Connection for a rear-panel adjustment with a 4-wire short

3. Allow the DMM6500 to settle for five minutes.

DMM6500-905-01 Rev. E June 2022 3-11

Section

Calibration and Adjustment Manual

cal_DCV_100mV_zero_rear

cal_DCV_1V_zero_rear

cal_DCV_10V_zero_rear

cal_sense_10V_zero_rear

cal_DCV_100V_zero_rear

cal_DCV_1kV_zero_rear

cal_4W_1ohm_zero_rear

cal_2W_10ohm_zero_rear

cal_4W_10ohm_zero_rear

cal_2W_100ohm_zero_rear

cal_4W_100ohm_zero_rear

cal_2W_1kohm_zero_rear

cal_3W_1kohm_zero_rear

cal_3W_1kohm_SLO_zero_rear

cal_4W_1kohm_zero_rear

cal_2W_10kohm_zero_rear

cal_3W_10kohm_zero_rear

cal_3W_10kohm_SLO_zero_rear

cal_4W_10kohm_zero_rear

cal_2W_100kohm_zero_rear

cal_3W_100kohm_SLO_zero_rear

cal_4W_100kohm_zero_rear

cal_2W_1Mohm_zero_rear

cal_4W_1Mohm_zero_rear

cal_2W_HiOhm_zero_rear

cal_4W_HiOhm_zero_rear

cal_diode_10mA_zero_rear

cal_diode_1mA_zero_rear

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters for a rear-terminal adjustment with a 4-wire

short

When calibrating your DMM6500 for a rear-terminal adjustment with a 4-wire short, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_DCV_100mV_zero_rear") cal.adjust.step.execute("cal_DCV_100mV_zero_rear")

Command parameters

3-12 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

cal_diode_100uA_zero_rear

cal_diode_10uA_zero_rear

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Front-terminal adjustment with open circuit inputs

The following procedure provides instructions for completing a front-terminal adjustment with open circuit inputs. The following section provides a command parameter table to complete the adjustment.

Prepare your DMM6500 for a front-terminal adjustment with open

circuit inputs

To prepare the DMM6500 for a front-terminal adjustment with open circuit inputs:

1. Set the TERMINALS switch to FRONT.

2. Remove all connections from the front terminals of your DMM6500.

DMM6500-905-01 Rev. E June 2022 3-13

Section

Calibration and Adjustment Manual

cal_DCI_3A_zero_front

cal_DCI_1A_zero_front

cal_DCI_100mA_zero_front

cal_DCI_10mA_zero_front

cal_DCI_1mA_zero_front

cal_DCI_100uA_zero_front

cal_DCI_10uA_zero_front

cal_DCI_DIGI_3A_zero

cal_DCI_DIGI_1A_zero

cal_DCI_DIGI_100mA_zero

cal_DCI_DIGI_10mA_zero

cal_DCI_DIGI_1mA_zero

cal_DCI_DIGI_100uA_zero

cal_ACI_1A_zero

cal_ACI_3A_zero

cal_4W_HiOhm_7Vref_open

cal_CAP_zero

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters for a front-terminal adjustment with open circuit

inputs

When calibrating your DMM6500 for a front-terminal adjustment with open circuit inputs, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_DCI_3A_zero_front") cal.adjust.step.execute("cal_DCI_3A_zero_front")

Command parameters

Rear-terminal adjustment with open circuit inputs

The following procedure provides instructions for completing a rear-terminal adjustment with open circuit inputs. The following section provides a command parameter table to complete the adjustment.

3-14 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

cal_DCI_10A_zero_rear

cal_DCI_DIGI_10A_zero_rear

cal_DCI_3A_zero_rear

cal_DCI_1A_zero_rear

cal_DCI_100mA_zero_rear

cal_DCI_10mA_zero_rear

cal_DCI_1mA_zero_rear

cal_DCI_100uA_zero_rear

cal_DCI_10uA_zero_rear

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Prepare your DMM6500 for a rear-terminal adjustment with a 4-wire

short

To prepare the DMM6500 for rear-terminal adjustment:

1. Set the TERMINALS switch to REAR.

Command parameters for a rear-terminal adjustment with open circuit

inputs

When calibrating your DMM6500 for a rear-terminal adjustment with open circuit inputs, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_DCI_10A_zero_rear") cal.adjust.step.execute("cal_DCI_10A_zero_rear")

Command parameters

2. Remove all connections from the front terminals of your DMM6500.

Resistance adjustment

The following procedure provides instructions for completing a resistance adjustment. The following section provides a command parameter table to complete the adjustment.

For this adjustment, you need a:

DMM6500-905-01 Rev. E June 2022 3-15

• Fluke 5720 calibrator

Section

Calibration and Adjustment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Prepare your DMM6500 for a resistance adjustment

To prepare the DMM6500 for a front-terminal adjustment:

1. Set the TERMINALS switch to FRONT.

2. Connect the DMM6500 to the calibrator as shown in the following figure.

Figure 23: Connection for a resistance accuracy adjustment

3. Allow the instruments and cables to settle for five minutes.

4. On the calibrator, enable the OPR key and the EX SNS key.

5. Make sure that the OPERATE display and EX SNS keys are illuminated.

3-16 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Command parameters for a resistance adjustment

When calibrating your DMM6500 for a resistance adjustment, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command along with the calibrator stimulus value.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_4W_10ohm_fs") cal.adjust.step.execute("cal_4W_10ohm_fs", <calibrator stimulus value>)

Since the temperature sensor is adjusted here, you are advised to perform all resistance adjustment steps in the same calibration session. If only a partial calibration is performed and the original T_cal differs from the new T_cal, the ranges that are not adjusted may less accurate. Completing an adjustment for all the resistance steps will remove these errors.

You must send the cal_TS7 first.

DMM6500-905-01 Rev. E June 2022 3-17

Section

Calibration and Adjustment Manual

cal_TS7

n/a

cal_4W_10ohm_fs

4-wire Ω

actual from calibrator

cal_4W_10ohm_OCOMP_fs

4-wire Ω

actual from calibrator

cal_4W_100ohm_fs

4-wire Ω

100

actual from calibrator

cal_4W_100ohm_OCOMP_fs

4-wire Ω

100

actual from calibrator

cal_4W_1kohm_fs

4-wire Ω

1000

actual from calibrator

cal_4W_1kohm_OCOMP_fs

4-wire Ω

1000

actual from calibrator

cal_source_1mA_1V

4-wire Ω

1000

actual from calibrator

cal_4W_10kohm_fs

cal_4W_10kohm_OCOMP_fs

4-wire Ω

10000

actual from calibrator

cal_source_100uA_1V

4-wire Ω

10000

actual from calibrator

cal_4W_100kohm_fs

4-wire Ω

100000

actual from calibrator

cal_source_10uA_1V

4-wire Ω

100000

actual from calibrator

cal_4W_1Mohm_fs

4-wire Ω

1000000

actual from calibrator

cal_source_1uA_1V

4-wire Ω

1000000

actual from calibrator

cal_4W_HiOhm_halfV_10Meg

4-wire Ω

10000000

actual from calibrator

cal_user_10Meg_value

4-wire Ω

10000000

actual from calibrator

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters Calibrator

function

4-wire Ω 10000 10000 actual from calibrator

Calibrator range

Calibrator value

Reference DMM dc current range

DC voltage adjustment

The following procedure provides instructions for completing a front-terminal adjustment for a dc voltage accuracy. The following section provides a command parameter table to complete the adjustment.

For this adjustment, you need a:

• Fluke 5720 calibrator

3-18 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Prepare your DMM6500 for a dc voltage adjustment

To prepare the DMM6500 for a dc voltage adjustment:

1. Connect a cable between the calibrator and the DMM6500 as shown in the figure below.

Figure 24: Connection for a dc voltage accuracy adjustment

2. Allow the DMM6500 to settle for five minutes.

DMM6500-905-01 Rev. E June 2022 3-19

Section

Calibration and Adjustment Manual

cal_DCV_DIGI_1kV_fs_pos

cal_DCV_DIGI_1kV_fs_neg

dc voltage

1100

-1000

cal_DCV_100V_fs_pos

dc voltage

220

100

cal_DCV_DIGI_100V_fs_pos

dc voltage

220

100

cal_DCV_100V_fs_neg

dc voltage

220

-100

cal_DCV_DIGI_100V_fs_neg

dc voltage

220

-100

cal_DCV_10V_fs_pos

dc voltage

cal_DCV_DIGI_10V_fs_pos

dc voltage

cal_DCV_10V_fs_neg

dc voltage

-10

cal_DCV_DIGI_10V_fs_neg

dc voltage

-10

cal_DCV_DIGI_1V_fs_pos

dc voltage

2.2

cal_DCV_DIGI_1V_fs_neg

dc voltage

2.2

-1

cal_DCV_DIGI_100mV_fs_pos

cal_DCV_DIGI_100mV_fs_neg

dc voltage

0.22

-0.1

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters for a dc voltage adjustment

When calibrating your DMM6500 for a dc voltage adjustment, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_DCV_DIGI_1kV_fs_pos") cal.adjust.step.execute("cal_DCV_DIGI_1kV_fs_pos")

Command parameters Calibrator

function

dc voltage 1100 1000

Calibrator range

Calibrator value

DC current adjustment

The following procedure provides instructions for completing a front-terminal adjustment for dc current accuracy. The following section provides a command parameter table to complete the adjustment.

For this adjustment, you need a:

• Fluke 5720 calibrator

• Fluke 8508A or 8588A Reference DMM

dc voltage 0.22 0.1

3-20 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Prepare your DMM6500 for a dc current adjustment

To prepare the DMM6500 for dc current adjustment:

Connect the Model DMM6500 to the calibrator as shown in the following figure.

Figure 25: Connection for dc current

DMM6500-905-01 Rev. E June 2022 3-21

Section

Calibration and Adjustment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters for a dc current adjustment

When calibrating your DMM6500 for a dc current adjustment, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command along with the calibrator stimulus value.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_DCI_10uA_fs_pos") cal.adjust.step.execute("cal_DCI_10uA_fs_pos", <calibrator stimulus value>)

You must send the cal_TS6 first.

3-22 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

cal_TS6

n/a

cal_DCI_10uA_fs_pos

dc current

0.00022

0.00001

8508A or 8588A Reading

10 µA

cal_DCI_10uA_fs_neg

dc current

0.00022

-0.00001

8508A or 8588A Reading

100 µA

cal_DCI_100uA_fs_pos

dc current

0.00022

0.0001

8508A or 8588A Reading

100 µA

cal_DCI_DIGI_100uA_fs_pos

dc current

0.00022

0.0001

8508A or 8588A

100 µA

cal_DCI_100uA_fs_neg

dc current

0.00022

-0.0001

8508A or 8588A Reading

100 µA

cal_DCI_DIGI_100uA_fs_neg

dc current

0.00022

-0.0001

8508A or 8588A Reading

100 µA

cal_DCI_1mA_fs_pos

dc current

0.0022

0.001

8508A or 8588A Reading

1 mA

cal_DCI_DIGI_1mA_fs_pos

dc current

0.0022

0.001

8508A or 8588A Reading

1 mA

cal_DCI_1mA_fs_neg

dc current

0.0022

-0.001

8508A or 8588A Reading

1 mA

cal_DCI_DIGI_1mA_fs_neg

dc current

0.0022

-0.001

8508A or 8588A Reading

1 mA

cal_DCI_10mA_fs_pos

dc current

0.022

0.01

8508A or 8588A Reading

10 mA

cal_DCI_DIGI_10mA_fs_pos

dc current

0.022

0.01

8508A or 8588A Reading

10 mA

cal_DCI_10mA_fs_neg

dc current

0.022

-0.01

8508A or 8588A Reading

10 mA

cal_DCI_DIGI_10mA_fs_neg

dc current

0.022

-0.01

8508A or 8588A

10 mA

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Command parameters Calibrator

function

Calibrator range

Calibrator value

Calibrator stimulus value*

Reference DMM dc current range

10 µA range (+) full scale nominal

100 µA range (+) full scale nominal

Reading

100 µA range (-) full scale nominal

*Characterized step measured by the Fluke 8508A or 8588A

Command parameters Calibrator

function

Calibrator range

Calibrator value

Calibrator stimulus value*

Reference DMM dc current range

1 mA range (+) full scale nominal

1 mA range (-) full scale nominal

10 mA range (+) full scale nominal

10 mA range (-) full scale nominal

*Characterized step measured by the Fluke 8508A or 8588A

DMM6500-905-01 Rev. E June 2022 3-23

Reading

Section

Calibration and Adjustment Manual

cal_DCI_100mA_fs_pos

dc current

0.22

0.1

n/a

20 A

cal_DCI_DIGI_100mA_fs_pos

dc current

0.22

0.1

n/a

20 A

cal_DCI_100mA_fs_neg

dc current

0.22

-0.1

n/a

20 A

cal_DCI_DIGI_100mA_fs_neg

dc current

0.22

-0.1

n/a

20 A

cal_TS5

cal_DCI_1A_fs_pos

dc current

2.2 1 n/a

20 A

cal_DCI_DIGI_1A_fs_pos

dc current

2.2 1 n/a

20 A

cal_DCI_1A_fs_neg

dc current

2.2

-1

n/a

20 A

cal_DCI_DIGI_1A_fs_neg

cal_DCI_DIGI_3A_fs_pos

dc current

2.2 2 n/a

20 A

cal_DCI_DIGI_3A_fs_neg

dc current

2.2

-2

n/a

20 A

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters Calibrator

function

dc current n/a n/a n/a 20 A

dc current 2.2 -1 n/a 20 A

DC current 10 A range adjustment

The following procedure provides instructions for completing a rear-terminal dc current adjustment for the 10 A range. The following section provides a command parameter table to complete the adjustment.

Calibrator range

Calibrator value

Calibrator stimulus value

Reference DMM dc current range

For this adjustment, you need a:

• Fluke 5720 calibrator

• 10 A cable

3-24 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Prepare your DMM6500 for a dc current 10 A range adjustment

To prepare the DMM6500 for dc current adjustment for the 10 A range:

Connect the DMM6500 to the calibrator as shown in the following figure using 10 A cables.

Figure 26: Connection for a 10 A range adjustment

DMM6500-905-01 Rev. E June 2022 3-25

Section

Calibration and Adjustment Manual

cal_DCI_10A_fs_pos

cal_DCI_DIGI_10A_fs_pos

dc current

2.2

cal_DCI_10A_fs_neg

dc current

2.2

-2

cal_DCI_DIGI_10A_fs_neg

dc current

2.2

-2

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters for a dc current 10 A range adjustment

When calibrating your DMM6500 for a dc current 10 A range adjustment, use the following command parameters. Connect a 10 A cable for this adjustment.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_DCI_10A_fs_pos") cal.adjust.step.execute("cal_DCI_10A_fs_pos")

Command parameters Calibrator

function

dc current 2.2 2

Calibrator range

Calibrator value

AC voltage adjustment

The following procedure provides instructions for completing a front-terminal adjustment for ac voltage. The following section provides a command parameter table to complete the adjustment.

For this adjustment, you need a:

• Fluke 5720 calibrator

• Keithley Model 3390 function generator

3-26 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Prepare your DMM6500 for an ac voltage adjustment

To prepare to run ac adjustments:

1. Set the TERMINALS switch to FRONT.

2. Connect a cable between the calibrator and the DMM6500 as shown in the figure below.

Figure 27: Connection for an ac voltage adjustment

3. Allow the instrument and cables to settle for 30 seconds.

4. On the calibrator, source 10 mV 1.0 kHz and allow the calibrator and DMM6500 to settle properly.

5. Enable the OPR key.

6. Ensure that the OPERATE display is illuminated.

7. Allow the calibrator and cable to settle properly.

DMM6500-905-01 Rev. E June 2022 3-27

Section

Calibration and Adjustment Manual

cal_ACV_100mV_1kHz_1pct

cal_ACV_100mV_10Hz_fs

ac voltage

0.22

0.1

10 Hz

cal_ACV_100mV_1kHz_fs

ac voltage

0.22

0.1

1 kHz

cal_ACV_100mV_50kHz_fs

ac voltage

0.22

0.1

50 kHz

cal_ACV_100mV_100kHz_fs

ac voltage

0.22

0.1

100 kHz

cal_ACV_100mV_200kHz_fs

ac voltage

0.22

0.1

200 kHz

cal_ACV_100mV_300kHz_fs

ac voltage

0.22

0.1

300 kHz

cal_ACV_1V_1kHz_1pct

ac voltage

0.022

0.01

1 kHz

cal_ACV_1V_10Hz_fs

ac voltage

2.2 1 10 Hz

cal_ACV_1V_1kHz_fs

ac voltage

2.2 1 1 kHz

cal_ACV_1V_50kHz_fs

ac voltage

2.2 1 50 kHz

cal_ACV_1V_100kHz_fs

ac voltage

2.2 1 100 kHz

cal_ACV_1V_200kHz_fs

ac voltage

2.2 1 200 kHz

cal_ACV_1V_300kHz_fs

ac voltage

2.2 1 300 kHz

cal_ACV_10V_1kHz_1pct

ac voltage

0.22

0.1

1 kHz

cal_ACV_10V_10Hz_fs

ac voltage

10 Hz

cal_ACV_10V_1kHz_fs

cal_ACV_10V_50kHz_fs

ac voltage

50 kHz

cal_ACV_10V_100kHz_fs

ac voltage

100 kHz

cal_ACV_10V_200kHz_fs

ac voltage

200 kHz

cal_ACV_10V_300kHz_fs

ac voltage

300 kHz

cal_ACV_100V_10Hz_1pct

cal_ACV_100V_1kHz_1pct

ac voltage

2.2 1 1 kHz

cal_ACV_100V_50kHz_1pct

ac voltage

2.2 1 50 kHz

cal_ACV_100V_100kHz_1pct

ac voltage

2.2 1 100 kHz

cal_ACV_100V_200kHz_1pct

ac voltage

2.2 1 200 kHz

cal_ACV_100V_300kHz_1pct

ac voltage

2.2 1 300 kHz

cal_ACV_100V_1kHz_fs

ac voltage

220

100

1 kHz

cal_ACV_700V_10Hz_1pct

ac voltage

22 7 10 Hz

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters for an ac voltage adjustment

When calibrating your DMM6500 for an ac voltage adjustment, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_ACV_100mV_1kHz_1pct") cal.adjust.step.execute("cal_ACV_100mV_1kHz_1pct")

Command parameter Calibrator

function

ac voltage 0.0022 0.001 1 kHz

Calibrator range

Calibrator value

Calibrator frequency

3-28 DMM6500-905-01 Rev. E June 2022

ac voltage 22 10 1 kHz

ac voltage 2.2 1 10 Hz

DMM6500

Adjustment

cal_ACV_700V_1kHz_1pct

ac voltage

22 7 1 kHz

cal_ACV_700V_50kHz_1pct

ac voltage

22 7 50 kHz

cal_ACV_700V_100kHz_1pct

ac voltage

22 7 100 kHz

cal_ACV_700V_200kHz_1pct

ac voltage

22 7 200 kHz

cal_ACV_700V_300kHz_1pct

cal_ACV_700V_1kHz_fs

ac voltage

1100

750

1 kHz

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

AC current adjustment

The following procedure provides instructions for completing a front-terminal adjustment for ac current. The following section provides a command parameter table to complete the adjustment.

For this adjustment, you need a:

ac voltage 22 7 300 kHz

• Fluke 5720 calibrator

Prepare your DMM6500 for an ac current adjustment

To prepare the DMM6500 for an ac current adjustment:

Connect the Model DMM6500 to the calibrator as shown in the following figure.

Figure 28: Connection for ac current

DMM6500-905-01 Rev. E June 2022 3-29

Section

libration and Adjustment Manual

cal_ACI_100uA_1kHz_tenth

cal_ACI_100uA_1kHz_fs

ac current

0.00022

0.0001

1 kHz

cal_ACI_1mA_1kHz_tenth

ac current

0.00022

0.0001

1 kHz

cal_ACI_1mA_1kHz_fs

ac current

0.0022

0.001

1 kHz

cal_ACI_10mA_1kHz_tenth

ac current

0.0022

0.001

1 kHz

cal_ACI_10mA_10Hz_fs

ac current

0.022

0.01

10 Hz

cal_ACI_10mA_10kHz_fs

ac current

0.022

0.01

10 kHz

cal_ACI_10mA_1kHz_fs

ac current

0.022

0.01

1 kHz

cal_ACI_100mA_1kHz_tenth

ac current

0.022

0.01

1 kHz

cal_ACI_100mA_1kHz_fs

ac current

0.22

0.1

1 kHz

cal_ACI_100mA_10Hz_fs

ac current

0.22

0.1

10 Hz

cal_ACI_200mA_1kHz_fs

ac current

0.22

0.2

1 kHz

cal_ACI_200mA_10kHz_fs

ac current

0.22

0.2

10 kHz

cal_ACI_1A_1kHz_tenth

ac current

0.22

0.1

1 kHz

cal_ACI_1A_10Hz_fs

ac current

2.2 1 10 Hz

cal_ACI_1A_1kHz_fs

ac current

2.2 1 1 kHz

cal_ACI_3A_1kHz_tenth

ac current

2.2

0.3

1 kHz

cal_ACI_3A_1kHz_fs

ac current

2.2 2 1 kHz

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning Ca

Command parameters for an ac current adjustment

When calibrating your DMM6500 for an ac current adjustment, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_ACI_100uA_1kHz_tenth") cal.adjust.step.execute("cal_ACI_100uA_1kHz_tenth")

Command parameters Calibrator

function

ac current 0.00022 0.00001 1 kHz

Calibrator range

Calibrator value

Calibrator frequency

3-30 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

AC current 10 A range adjustment

The following procedure provides instructions for completing a front-terminal adjustment ac current in the 10 A range. For this adjustment, you need a Fluke 5720 calibrator. The following section provides a command parameter table to complete the adjustment.

For this adjustment, you need a:

• Fluke 5720 calibrator

• 10 A cable

Prepare your DMM6500 for an ac current 10 A range adjustment

To prepare the DMM6500 for an ac current adjustment in the 10 A range:

Connect the DMM6500 to the calibrator as shown in the following figure using 10 A cables.

Figure 29: Connection for a 10 A range adjustment

DMM6500-905-01 Rev. E June 2022 3-31

Section

Calibration and Adjustment Manual

cal_ACI_10A_400Hz_tenth

cal_ACI_10A_400Hz_fs

ac current

11 7 400 Hz

cal_ACI_10A_5kHz_fs

ac current

11 7 5 kHz

cal_ACI_10A_400Hz_2A

ac current

2.2 2 400 Hz

cal_ACI_10A_10Hz_2A

ac current

2.2 2 10 Hz

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters for an ac current 10 A range adjustment

When calibrating your DMM6500 for an ac current 10 A range adjustment, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_ACI_10A_400Hz_tenth") cal.adjust.step.execute("cal_ACI_10A_400Hz_tenth")

Command parameters Calibrator

function

ac current 2.1 1 400 Hz

Calibrator range

Calibrator value

Calibrator frequency

Frequency adjustment

The following procedure provides instructions for completing a front-terminal adjustment for frequency. The following section provides a command parameter table to complete the adjustment.

For this adjustment, you need a:

• 50 Ω coaxial cable

• Keithley Model 3390 function generator

3-32 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

Prepare your DMM6500 for a frequency adjustment

To prepare the DMM6500 for a frequency adjustment:

1. Connect the Keithley Instruments Model 3390 function generator to the DMM6500 INPUT HI and LO terminals as shown in the following figure.

2. Use the BNC to banana adapter at the UUT connection.

Figure 30: Connection for a frequency adjustment

3. Set the function generator output impedance to high, amplitude of 5 V

, waveform to

RMS

square wave.

4. Enable output.

DMM6500-905-01 Rev. E June 2022 3-33

Section

Calibration and Adjustment Manual

cal_FREQ_1kHz

Frequency

1 kHz

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

Command parameters for a frequency adjustment

When calibrating your DMM6500 for a frequency adjustment, use the following command parameters.

Send each command parameter twice. First, send the parameter using the setup command.

Second, send the parameter using the execute command.

The example code below uses the first line of code from the table below. Send all command parameters using this command.

cal.adjust.step.setup("cal_FREQ_1kHz") cal.adjust.step.execute("cal_FREQ_1kHz")

Command parameter Calibrator

function

Calibrator range

Complete list of calibration commands

Calibrator value

Calibrator frequency

To make your adjustment procedure easier, you can copy and paste the code examples below into the Keithley Test Script Builder (TSB software). The commands can be copied and pasted two lines at a time.

All parameters in italics must be replaced with the specified value. For example,

cal.adjust.step.execute("cal_4W_10ohm_fs",

10ohm_value_read_from_calibrator) must have the italics replaced with the calibrator value.

3-34 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_100mV_zero_front") cal.adjust.step.execute("cal_DCV_100mV_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_DIGI_100mV_zero") cal.adjust.step.execute("cal_DCV_DIGI_100mV_zero")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_1V_zero_front") cal.adjust.step.execute("cal_DCV_1V_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_DIGI_1V_zero") cal.adjust.step.execute("cal_DCV_DIGI_1V_zero")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_10V_zero_front") cal.adjust.step.execute("cal_DCV_10V_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_sense_10V_zero_front") cal.adjust.step.execute("cal_sense_10V_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_DIGI_10V_zero") cal.adjust.step.execute("cal_DCV_DIGI_10V_zero")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_100V_zero_front") cal.adjust.step.execute("cal_DCV_100V_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_DIGI_100V_zero") cal.adjust.step.execute("cal_DCV_DIGI_100V_zero")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_1kV_zero_front") cal.adjust.step.execute("cal_DCV_1kV_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_DIGI_1kV_zero") cal.adjust.step.execute("cal_DCV_DIGI_1kV_zero")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_1ohm_zero_front") cal.adjust.step.execute("cal_4W_1ohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_10ohm_zero_front") cal.adjust.step.execute("cal_2W_10ohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_10ohm_zero_front") cal.adjust.step.execute("cal_4W_10ohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_100ohm_zero_front") cal.adjust.step.execute("cal_2W_100ohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_100ohm_zero_front") cal.adjust.step.execute("cal_4W_100ohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_1kohm_zero_front") cal.adjust.step.execute("cal_2W_1kohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_1kohm_zero_front") cal.adjust.step.execute("cal_3W_1kohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_1kohm_Hi_zero_front") cal.adjust.step.execute("cal_3W_1kohm_Hi_zero_front")

DMM6500-905-01 Rev. E June 2022 3-35

Section

justment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning Calibration and Ad

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_1kohm_SLO_zero_front") cal.adjust.step.execute("cal_3W_1kohm_SLO_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_1kohm_zero_front") cal.adjust.step.execute("cal_4W_1kohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_10kohm_zero_front") cal.adjust.step.execute("cal_2W_10kohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_10kohm_zero_front") cal.adjust.step.execute("cal_3W_10kohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_10kohm_SLO_zero_front") cal.adjust.step.execute("cal_3W_10kohm_SLO_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_10kohm_zero_front") cal.adjust.step.execute("cal_4W_10kohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_100kohm_zero_front") cal.adjust.step.execute("cal_2W_100kohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_100kohm_SLO_zero_front") cal.adjust.step.execute("cal_3W_100kohm_SLO_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_100kohm_zero_front") cal.adjust.step.execute("cal_4W_100kohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_1Mohm_zero_front") cal.adjust.step.execute("cal_2W_1Mohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_1Mohm_zero_front") cal.adjust.step.execute("cal_4W_1Mohm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_HiOhm_zero_front") cal.adjust.step.execute("cal_2W_HiOhm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_HiOhm_zero_front") cal.adjust.step.execute("cal_4W_HiOhm_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_HiOhm_zero_sense") cal.adjust.step.execute("cal_4W_HiOhm_zero_sense")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_diode_10mA_zero_front") cal.adjust.step.execute("cal_diode_10mA_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_diode_1mA_zero_front") cal.adjust.step.execute("cal_diode_1mA_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_diode_100uA_zero_front") cal.adjust.step.execute("cal_diode_100uA_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_diode_10uA_zero_front") cal.adjust.step.execute("cal_diode_10uA_zero_front")

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_ACV_1V_zero") cal.adjust.step.execute("cal_ACV_1V_zero")

3-36 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

-- Use front-terminal 4-wire short setup

cal.adjust.step.setup("cal_ACV_10V_zero") cal.adjust.step.execute("cal_ACV_10V_zero")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_100mV_zero_rear") cal.adjust.step.execute("cal_DCV_100mV_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_100mV_zero_rear") cal.adjust.step.execute("cal_DCV_100mV_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_1V_zero_rear") cal.adjust.step.execute("cal_DCV_1V_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_10V_zero_rear") cal.adjust.step.execute("cal_DCV_10V_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_sense_10V_zero_rear") cal.adjust.step.execute("cal_sense_10V_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_100V_zero_rear") cal.adjust.step.execute("cal_DCV_100V_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_DCV_1kV_zero_rear") cal.adjust.step.execute("cal_DCV_1kV_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_1ohm_zero_rear") cal.adjust.step.execute("cal_4W_1ohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_10ohm_zero_rear") cal.adjust.step.execute("cal_2W_10ohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_10ohm_zero_rear") cal.adjust.step.execute("cal_4W_10ohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_100ohm_zero_rear") cal.adjust.step.execute("cal_2W_100ohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_100ohm_zero_rear") cal.adjust.step.execute("cal_4W_100ohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_1kohm_zero_rear") cal.adjust.step.execute("cal_2W_1kohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_1kohm_zero_rear") cal.adjust.step.execute("cal_3W_1kohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_1kohm_SLO_zero_rear") cal.adjust.step.execute("cal_3W_1kohm_SLO_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_1kohm_zero_rear") cal.adjust.step.execute("cal_4W_1kohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_10kohm_zero_rear") cal.adjust.step.execute("cal_2W_10kohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_10kohm_zero_rear") cal.adjust.step.execute("cal_3W_10kohm_zero_rear")

DMM6500-905-01 Rev. E June 2022 3-37

Section

Calibration and Adjustment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_10kohm_SLO_zero_rear") cal.adjust.step.execute("cal_3W_10kohm_SLO_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_10kohm_zero_rear") cal.adjust.step.execute("cal_4W_10kohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_100kohm_zero_rear") cal.adjust.step.execute("cal_2W_100kohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_3W_100kohm_SLO_zero_rear") cal.adjust.step.execute("cal_3W_100kohm_SLO_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_100kohm_zero_rear") cal.adjust.step.execute("cal_4W_100kohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_1Mohm_zero_rear") cal.adjust.step.execute("cal_2W_1Mohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_1Mohm_zero_rear") cal.adjust.step.execute("cal_4W_1Mohm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_2W_HiOhm_zero_rear") cal.adjust.step.execute("cal_2W_HiOhm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_4W_HiOhm_zero_rear") cal.adjust.step.execute("cal_4W_HiOhm_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_diode_10mA_zero_rear") cal.adjust.step.execute("cal_diode_10mA_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_diode_1mA_zero_rear") cal.adjust.step.execute("cal_diode_1mA_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_diode_100uA_zero_rear") cal.adjust.step.execute("cal_diode_100uA_zero_rear")

-- Use rear-terminal 4-wire short setup

cal.adjust.step.setup("cal_diode_10uA_zero_rear") cal.adjust.step.execute("cal_diode_10uA_zero_rear")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_3A_zero_front") cal.adjust.step.execute("cal_DCI_3A_zero_front")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_1A_zero_front") cal.adjust.step.execute("cal_DCI_1A_zero_front")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_100mA_zero_front") cal.adjust.step.execute("cal_DCI_100mA_zero_front")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_10mA_zero_front") cal.adjust.step.execute("cal_DCI_10mA_zero_front")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_1mA_zero_front") cal.adjust.step.execute("cal_DCI_1mA_zero_front")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_100uA_zero_front") cal.adjust.step.execute("cal_DCI_100uA_zero_front")

3-38 DMM6500-905-01 Rev. E June 2022

DMM6500

ustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3: Adj

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_10uA_zero_front") cal.adjust.step.execute("cal_DCI_10uA_zero_front")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_DIGI_3A_zero") cal.adjust.step.execute("cal_DCI_DIGI_3A_zero")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_DIGI_1A_zero") cal.adjust.step.execute("cal_DCI_DIGI_1A_zero")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_DIGI_100mA_zero") cal.adjust.step.execute("cal_DCI_DIGI_100mA_zero")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_DIGI_10mA_zero") cal.adjust.step.execute("cal_DCI_DIGI_10mA_zero")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_DIGI_1mA_zero") cal.adjust.step.execute("cal_DCI_DIGI_1mA_zero")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_DIGI_100uA_zero") cal.adjust.step.execute("cal_DCI_DIGI_100uA_zero")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_ACI_1A_zero") cal.adjust.step.execute("cal_ACI_1A_zero")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_ACI_3A_zero") cal.adjust.step.execute("cal_ACI_3A_zero")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_4W_HiOhm_7Vref_open") cal.adjust.step.execute("cal_4W_HiOhm_7Vref_open")

-- Use front-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_CAP_zero") cal.adjust.step.execute("cal_CAP_zero")

-- Use rear-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_10A_zero_rear") cal.adjust.step.execute("cal_DCI_10A_zero_rear")

-- Use rear-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_DIGI_10A_zero_rear") cal.adjust.step.execute("cal_DCI_DIGI_10A_zero_rear")

-- Use rear-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_3A_zero_rear") cal.adjust.step.execute("cal_DCI_3A_zero_rear")

-- Use rear-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_1A_zero_rear") cal.adjust.step.execute("cal_DCI_1A_zero_rear")

-- Use rear-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_100mA_zero_rear") cal.adjust.step.execute("cal_DCI_100mA_zero_rear")

-- Use rear-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_10mA_zero_rear") cal.adjust.step.execute("cal_DCI_10mA_zero_rear")

-- Use rear-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_1mA_zero_rear") cal.adjust.step.execute("cal_DCI_1mA_zero_rear")

-- Use rear-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_100uA_zero_rear") cal.adjust.step.execute("cal_DCI_100uA_zero_rear")

DMM6500-905-01 Rev. E June 2022 3-39

Section

Calibration and Adjustment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

-- Use rear-terminal 4-wire open circuit setup

cal.adjust.step.setup("cal_DCI_10uA_zero_rear") cal.adjust.step.execute("cal_DCI_10uA_zero_rear")

-- Use resistance setup

cal.adjust.step.setup("cal_TS7") cal.adjust.step.execute("cal_TS7")

-- Use resistance setup

cal.adjust.step.setup("cal_4W_10ohm_fs") cal.adjust.step.execute("cal_4W_10ohm_fs", 10ohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_10ohm_OCOMP_fs") cal.adjust.step.execute("cal_4W_10ohm_OCOMP_fs", 10ohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_100ohm_fs") cal.adjust.step.execute("cal_4W_100ohm_fs", 100ohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_100ohm_OCOMP_fs") cal.adjust.step.execute("cal_4W_100ohm_OCOMP_fs",100ohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_1kohm_fs") cal.adjust.step.execute("cal_4W_1kohm_fs", 1kohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_1kohm_OCOMP_fs") cal.adjust.step.execute("cal_4W_1kohm_OCOMP_fs", 1kohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_source_1mA_1V") cal.adjust.step.execute("cal_source_1mA_1V", 1kohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_10kohm_fs") cal.adjust.step.execute("cal_4W_10kohm_fs", 10kohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_10kohm_OCOMP_fs") cal.adjust.step.execute("cal_4W_10kohm_OCOMP_fs",

10kohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_source_100uA_1V") cal.adjust.step.execute("cal_source_100uA_1V", 10kohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_100kohm_fs") cal.adjust.step.execute("cal_4W_100kohm_fs", 100kohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_source_10uA_1V") cal.adjust.step.execute("cal_source_10uA_1V", 100kohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_1Mohm_fs") cal.adjust.step.execute("cal_4W_1Mohm_fs", 1Mohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_source_1uA_1V") cal.adjust.step.execute("cal_source_1uA_1V", 1Mohm_value_read_from_calibrator)

-- Use resistance setup

cal.adjust.step.setup("cal_4W_HiOhm_halfV_10Meg") cal.adjust.step.execute("cal_4W_HiOhm_halfV_10Meg",10Mohm_value_read_from_calibrato

-- Use resistance setup

cal.adjust.step.setup("cal_user_10Meg_value") cal.adjust.step.execute("cal_user_10Meg_value", 10Mohm_value_read_from_calibrator)

-- Use dc voltage setup

3-40 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

cal.adjust.step.setup("cal_DCV_DIGI_1kV_fs_pos") cal.adjust.step.setup("cal_DCV_DIGI_1kV_fs_pos")

-- Use dc voltage setupcal.adjust.step.setup("cal_DCV_DIGI_1kV_fs_neg")

cal.adjust.step.setup("cal_DCV_DIGI_1kV_fs_neg")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_100V_fs_pos") cal.adjust.step.setup("cal_DCV_100V_fs_pos")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_DIGI_100V_fs_pos") cal.adjust.step.setup("cal_DCV_DIGI_100V_fs_pos")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_100V_fs_neg") cal.adjust.step.setup("cal_DCV_100V_fs_neg")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_DIGI_100V_fs_neg") cal.adjust.step.setup("cal_DCV_DIGI_100V_fs_neg")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_10V_fs_pos") cal.adjust.step.setup("cal_DCV_10V_fs_pos")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_DIGI_10V_fs_pos") cal.adjust.step.setup("cal_DCV_DIGI_10V_fs_pos")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_10V_fs_neg") cal.adjust.step.setup("cal_DCV_10V_fs_neg")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_DIGI_10V_fs_neg") cal.adjust.step.setup("cal_DCV_DIGI_10V_fs_neg")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_DIGI_1V_fs_pos") cal.adjust.step.setup("cal_DCV_DIGI_1V_fs_pos")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_DIGI_1V_fs_neg") cal.adjust.step.setup("cal_DCV_DIGI_1V_fs_neg")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_DIGI_100mV_fs_pos") cal.adjust.step.setup("cal_DCV_DIGI_100mV_fs_pos")

-- Use dc voltage setup

cal.adjust.step.setup("cal_DCV_DIGI_100mV_fs_neg") cal.adjust.step.setup("cal_DCV_DIGI_100mV_fs_neg")

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_10uA_fs_pos") cal.adjust.step.execute("cal_DCI_10uA_fs_pos", value_read_from_ 8508A/8558A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_10uA_fs_neg") cal.adjust.step.execute("cal_DCI_10uA_fs_neg",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_100uA_fs_pos") cal.adjust.step.execute("cal_DCI_100uA_fs_pos",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_100uA_fs_pos") cal.adjust.step.execute("cal_DCI_DIGI_100uA_fs_pos",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_100uA_fs_neg") cal.adjust.step.execute("cal_DCI_100uA_fs_neg",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_100uA_fs_neg")

DMM6500-905-01 Rev. E June 2022 3-41

Section

Calibration and Adjustment Manual

3: Adjustment DMM6500 6½-Digit Multimeter with Scanning

cal.adjust.step.execute("cal_DCI_DIGI_100uA_fs_neg",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_1mA_fs_pos") cal.adjust.step.execute("cal_DCI_1mA_fs_pos",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_1mA_fs_pos") cal.adjust.step.execute("cal_DCI_DIGI_1mA_fs_pos",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_1mA_fs_neg") cal.adjust.step.execute("cal_DCI_1mA_fs_neg",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_1mA_fs_neg") cal.adjust.step.execute("cal_DCI_DIGI_1mA_fs_neg",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_10mA_fs_pos") cal.adjust.step.execute("cal_DCI_10mA_fs_pos",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_10mA_fs_pos") cal.adjust.step.execute("cal_DCI_DIGI_10mA_fs_pos",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_10mA_fs_neg") cal.adjust.step.execute("cal_DCI_10mA_fs_neg",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_10mA_fs_neg") cal.adjust.step.execute("cal_DCI_DIGI_10mA_fs_neg",value_read_from_ 8508A/8588A)

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_100mA_fs_pos") cal.adjust.step.execute("cal_DCI_100mA_fs_pos")

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_100mA_fs_pos") cal.adjust.step.execute("cal_DCI_DIGI_100mA_fs_pos")

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_100mA_fs_neg") cal.adjust.step.execute("cal_DCI_100mA_fs_neg")

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_100mA_fs_neg") cal.adjust.step.execute("cal_DCI_DIGI_100mA_fs_neg")

-- Use dc current setup

cal.adjust.step.setup("cal_TS5") cal.adjust.step.execute("cal_TS5")

-- Use DC current setup

cal.adjust.step.setup("cal_DCI_1A_fs_pos") cal.adjust.step.execute("cal_DCI_1A_fs_pos")

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_1A_fs_pos") cal.adjust.step.execute("cal_DCI_DIGI_1A_fs_pos")

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_1A_fs_neg") cal.adjust.step.execute("cal_DCI_1A_fs_neg")

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_1A_fs_neg") cal.adjust.step.execute("cal_DCI_DIGI_1A_fs_neg")

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_3A_fs_pos") cal.adjust.step.execute("cal_DCI_DIGI_3A_fs_pos")

-- Use dc current setup

cal.adjust.step.setup("cal_DCI_DIGI_3A_fs_neg")

3-42 DMM6500-905-01 Rev. E June 2022

DMM6500

Adjustment

6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 3:

cal.adjust.step.execute("cal_DCI_DIGI_3A_fs_neg")

-- Use dc current 10 A setup

cal.adjust.step.setup("cal_DCI_10A_fs_pos") cal.adjust.step.execute("cal_DCI_10A_fs_pos")

-- Use dc current 10 A setup

cal.adjust.step.setup("cal_DCI_DIGI_10A_fs_pos") cal.adjust.step.execute("cal_DCI_DIGI_10A_fs_pos")

-- Use dc current 10 A setup

cal.adjust.step.setup("cal_DCI_10A_fs_neg") cal.adjust.step.execute("cal_DCI_10A_fs_neg")

-- Use dc current 10 A setup

cal.adjust.step.setup("cal_DCI_DIGI_10A_fs_neg") cal.adjust.step.execute("cal_DCI_DIGI_10A_fs_neg")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_100mV_1kHz_1pct") cal.adjust.step.execute("cal_ACV_100mV_1kHz_1pct")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_100mV_10Hz_fs") cal.adjust.step.execute("cal_ACV_100mV_10Hz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_100mV_1kHz_fs") cal.adjust.step.execute("cal_ACV_100mV_1kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_100mV_50kHz_fs") cal.adjust.step.execute("cal_ACV_100mV_50kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_100mV_100kHz_fs") cal.adjust.step.execute("cal_ACV_100mV_100kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_100mV_200kHz_fs") cal.adjust.step.execute("cal_ACV_100mV_200kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_100mV_300kHz_fs") cal.adjust.step.execute("cal_ACV_100mV_300kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_1V_1kHz_1pct") cal.adjust.step.execute("cal_ACV_1V_1kHz_1pct")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_1V_10Hz_fs") cal.adjust.step.execute("cal_ACV_1V_10Hz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_1V_1kHz_fs") cal.adjust.step.execute("cal_ACV_1V_1kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_1V_50kHz_fs") cal.adjust.step.execute("cal_ACV_1V_50kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_1V_100kHz_fs") cal.adjust.step.execute("cal_ACV_1V_100kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_1V_200kHz_fs") cal.adjust.step.execute"cal_ACV_1V_200kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_1V_300kHz_fs") cal.adjust.step.execute("cal_ACV_1V_300kHz_fs")

-- Use ac voltage setup

cal.adjust.step.setup("cal_ACV_10V_1kHz_1pct")

DMM6500-905-01 Rev. E June 2022 3-43

Tektronix DMM6500 User manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety precautions

Table of contents

Welcome

Introduction

Introduction to this manual

Extended warranty

Contact information

Introduction

Performance verification

Verification test requirements

Environmental conditions

Warmup period

Line power

Recommended test equipment

Calibration verification limits

Example reading limit calculation

Calculating resistance reading limits

Performing the verification test procedures

Test summary

Test considerations

Front-panel calibration verification

DC voltage verification

Verify dc voltage accuracy for the 100 mV to 1000 V ranges

Verify the dc voltage 100 mV range

Verify the dc voltage 1 V range

Verify the dc voltage 10 V range

Verify the dc voltage 100 V range

Verify the dc voltage 1000 V range

AC voltage verification

Verify ac voltage accuracy for the 100 mV to 100 V ranges

Verify the ac voltage 100 mV range

Verify the ac voltage 1 V range

Verify the ac voltage 10 V range

Verify the ac voltage 100 V range

Verify ac voltage accuracy for the 750 V range

Verify the ac voltage 750 V range

Digitize dc voltage verification

Verify the digitize voltage 100 mV to 1000 V ranges

Verify the digitize voltage 100 mV range

Verify the digitize voltage 1 V range

Verify the digitize voltage 10 V range

Verify the digitize voltage 100 V range

Verify the digitize voltage 1000 V range

Frequency verification

Verify the frequency

Simulated thermocouple type J temperature verification

Verify thermocouple accuracy

Simulated RTD temperature verification

RTD equations

RTD parameters for equations

Verify the simulated RTD temperature

Resistance verification

Four-wire resistance verification

Four-wire resistance verification with offset compensation off

Verify 2-wire resistance accuracy

Verify resistance 100 MΩ range

DC current verification

DC current 10 µA to 100 mA range verification

Test limit calculation for 10 µA to 100 mA ranges

DC current 100 mA to 3 A range verification

Verify dc current 100 mA range

Verify dc current 1 A range

Verify dc current 3 A range

Verify dc current 10 A range

Digitize current verification

Verify digitize current 100 µA to 3 A ranges

Verify digitize current 100 µA range

Verify digitize current 1 mA range

Verify digitize current 10 mA range

Verify digitize current 100 mA range

Verify digitize current 1 A range

Verify digitize current 3 A range

Verify digitize current 10 A range

AC current verification

Verify ac current on the 100 µA to 3 A ranges

Verify ac current 100 µA range