HP E1411A, E1411B Service Manual

Download

Page 1

Contents

HP E1411A/B 5 1/2 Digit Multimeter Service Manual

Edition 2

Click here to Return to HP TS-5400 Systems On-Line Manuals Main Contents

Chapter 1. General Informa tio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Multimeter Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Multimeter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Multimeter Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Multimeter Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Recommended

Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Chapter 2. Ins tallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Shipping the Multimeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chapter 3. Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Multimeter Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Operator’s Chec k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Self-Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Example: Multimeter Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Chapter 4. Verification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Test Conditions / Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Performance Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Verification Test Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Function al Verification Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Self-Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Example: Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Operatio n Verification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Performance Verification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Performance Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Multimeter Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Measurement Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Test Accuracy Ratio (TAR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Page 2

Chapter 5. Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Adjustment Conditions / Procedures . . . . . . . . . . . . . . . . . . . . . . . . . 37

DC Voltage Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Equipment Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Example: DC Voltage Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . 39

AC Voltage Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Equipment Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Resistanc e Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Equipment Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Example: 4-Wire Resistance Adjustments . . . . . . . . . . . . . . . . . . . . . . 46

Calibration Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Chapter 6. Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Exchange Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Chapter 7. Manual Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Chapter 8. Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Service Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

TroubleshootingTechniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Identifyi ng the Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Testing Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Repair Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

ESD Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Removing Top Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Removing Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Removing Binding Posts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Soldering Printed Circuit Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Post-Repair Safety Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Appendix A. C alculating Multimeter Accuracy . . . . . . . . . . . . . . . . . . . . . . . . 65

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Multimeter Accuracy Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

DC Voltage Accuracy Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

AC Voltage Accuracy Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

4-Wire Ohms Accuracy Equations . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Measurement Uncertainty Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Page 3

Calculate DCV Measurement Uncertainty . . . . . . . . . . . . . . . . . . . . . . 68

Calculate ACV Measurement Uncertainty . . . . . . . . . . . . . . . . . . . . . . 69

Calculate Resistance Measurement Uncertainty . . . . . . . . . . . . . . . . . . 69

Test Accuracy Ratio (TAR) Calculations . . . . . . . . . . . . . . . . . . . . . . . . . 70

Appendix B. Verification Tests - C Programs . . . . . . . . . . . . . . . . . . . . . . . . . 71

Function al Verification Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Example:Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Performance Verification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Example: Zero Volt DCV Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Example: DC Voltage Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Example: AC Voltage Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Example: Resistance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

DC Voltage Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

AC Voltage Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Resistanc e Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Page 4

Notes

Page 5

Certification

Hewlett-Packard Company certifies that this product met its published specifications at the time of shipment from the factory. HewlettPackard further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology (formerly National Bureau of Standards), to the extent allowed by that organization’s calibration facility, and to the calibration

facilities of other International Standards Organization members.

Warranty

This Hewlett-Packard product is warranted against defects in materials and workmanship for a period of three years from date of shipment. Duration and conditions of warranty for this product may be superseded when the product is integrated into (becomes a part of) other HP products. During the warranty period, Hewlett-Packard Company will, at its option, either repair or replace products which prove to be defective.

For warranty service or repair, this product must be returned to a service facility designated by Hewlett-Packard (HP). Buyer shall prepay shipping charges to HP and HP shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products returned to HP from another country.

HP warrants that its software and firmware designated by HP for use with a product will execute its programming instructions when properly installed on that produ c t. HP do e s not war ra n t th a t th e ope ra tion of the product , or s oftware, or firmwa re w ill be uninterrupted or error free.

Limitation Of Warranty

The foregoing wa rr a nt y s ha l l not apply to defects resulting from im p r op e r or ina d e qu a te m aintenance by Buye r, Buyer-suppli e d products or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation or maintenance.

The design and implement ation of any circuit on this product is th e sole respo nsi bi li ty of the Buyer. HP does not warrant the Buyer’s

circuitry or m a lfu nc tions of HP products th a t r e s ul t f rom th e Bu yer ’s c ir c u itry. In addition, HP doe s not warrant any dam a g e that occurs as a result of the Buyer’s circuit or any defects that result from Buyer-supplied products.

NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Exclusive Remedies

THE REMEDIES PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES. HP SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.

Notice

The information contained in this document is subject to change without notice. HEWLETT-PACKARD (HP) MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. HP shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing , performance or use of this material. This document contains proprietary information which is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language witho ut the prior written consent of Hewlett-Packard Company. HP assumes no responsibility for the use or reliability of its software on equipment that is not furnished by HP.

U.S. Government Restricted Rights

The Software and Documentation have been developed entirely at private expense. They are delivered and licensed as "commercial computer software" as defined in DFARS 252.227- 7013 (Oct 1988), DFARS 252.211-7015 (May 1991) or DFARS 252.227-7014 (Jun

1995), as a "com mercial ite m " as de fined in FAR 2.10 1(a ) , or as "R e s tricted comp uter software" as defined in FA R 52.227-19 (Jun

1987)(or any equivalent agency regulation or contract clause), whichever is app licable. You have only those rights provided for such Software and Documentation by the applicable FAR or DFARS clause or the HP standard software agreement for the product involved.

HP E1411A/E141 1B 5 1/2-Digit Mult im e ter Service Manual

Edition 2

HP E1411A/B Service Manual 5

Page 6

Documentation History

All Editions and Updates of this manual and their creation date are listed below. The first Edition of the manual is Edition 1. The Edition number increments by 1 whenever the manual is revised. Updates, which are issued between Editions, contain replacement pages to correct or add additional information to the current Edition of the manual. Whenever a new Edition is created, it will contain all of the Update information for the previous Edition. Each new Edition or Update also includes a revised copy of this documen tatio n history page.

Edition 1 (Part Number E1411-90000). . . . . . . . . . . . . . . . . . . . . . October 1995

Edition 2 (Part Number E1411-90011). . . . . . . . . . . . . . . . . . . . . . . August 1996

Safety Symbols

Instructio n m a nu a l s ym b ol affixed to pro duct. Indicates that the user must refer to the manual for specific WARNING or CAUTION information to avoid personal injury or damage to th e product.

Indicates the field wiring terminal that must be connected to earth ground before operating the equipment—protects against electrical shock in case of fault.

Frame or chassis ground terminal—typically connects to the equipment’s metal frame.

WARNING

CAUTION

Alternating current (AC).

Direct current (DC).

Indicates hazardous voltages.

Calls attention to a procedure, practice, or condition that c ould cau se bodi l y in ju ry or death.

Calls attention to a procedure, practice, or condition that could possibly cause damage to equipment or pe r m a n e nt loss of data.

WARNINGS

The following general safety precautions must be observed during all phases of operation, service, and repair of this product. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the product. Hewlett-Packard Company assumes no liabil ity for the customer’s failure to

comply with these requirements. Ground the equipment: For Safety Class 1 equipment (equipment having a protective earth terminal), an uninterruptible safety earth

ground must be provid e d from th e mai ns po we r sourc e to the pro du c t in pu t w iring terminals or s up pl ie d powe r c a bl e .

DO NOT operate the product in an explosive atmosphere or in the presence of flammable gases or fumes.

For continued protection against fire, replace the line fuse(s) only with fuse(s) of the same voltage and current rating and type. DO NOT use repaired fuses or short-circuited fuse holders.

Keep away from live circuits: Operating personnel must not remove equipment covers or shields. Procedures involving the removal of covers or shields are for use by service-trained personnel only. Under certain conditions, dangerous voltages may exist even with the equipment switched off. To avoid dangerous electrical shock, DO NOT perform procedures involving cover or shield removal unless you are qualified to do so.

DO NOT operate damaged equipment: Whenever it is possible that the safety protection features built into this product have been impaired, either through physical damage, excessive moisture, or any other reason, REMOVE POWER and do not use the product until safe operation can be verified by service-trained personnel. If necessary, return the product to a Hewlett-Packard Sales and Service Office for service and repair to ensure that safety features are maintained.

DO NOT service or adjust alone: Do not attempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.

DO NOT substitute parts or modify equipment: Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification to the product. Return the product to a Hewlett-Packard Sales and Service Office for service and repair to ensure that safety features are maintained.

6 HP E1411A/B Service Manual

Page 7

Declaration of Conformity

according to ISO/IEC Guide 22 and EN 45014

Manufacturer’s Name: Hewlett-Packard Company

Loveland Manufacturing Center

Manufacturer’s Address: 815 14th Street S.W.

Loveland, Colorado 80537

declares, that the product:

Product Name: 5 1/2-Digit Multimeter

Model Number: HP E1411A/HP E1411B

Product Options: All

conforms to the following Product Specifications:

Safety: IEC 1010-1 (1990) Incl. Amend 1 (1992)/EN61010-1(1993)

CSA C22.2#1010.1 (1992) UL 3111

EMC: CISPR 11:1990/EN55011 (1991): Group 1, Class A

EN50082-1:1992 IEC 801-2:1991 : 4kV CD, 8kV AD IEC 801-3:1984 : 3 V/m IEC 801-4:1988 : 1kV Power Line, 0.5kV signal lines ENV50141:1993/p rE N 50 08 2-1 (1995): 3 Vrms ENV50142:1994/prEN50082-1 (1995): 1 kV CM, 0.5kV DM IEC1000-4-8:1993/p rEN50082-1 (1995): 3 A/m EN61000-4-11:1994/prEN50082-1 (1995): 30%,10ms 60%,100ms

Supplementary Information: The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC (inclusive 93/68/EEC) and carries the "CE" mark accordingly.

Tested in a typical HP C-Size VXI mainframe configuration.

December 30, 1995 Jim White, QA Manager

European contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH, Department

HQ-TRE, Herrenberger Straße 130, D-71034 Böblingen, Germany (FAX +49-7031-14-3143).

HP E1411A/B Service Manual 7

Page 8

Notes

8 HP E1411A/B Service Manual

Page 9

Please fold and tape for mailing

Reader Comment Sheet

HP E1411A/E1411B 5 1/2-Digit Multimeter Service Manual

Edition 2

You can help us improve our manuals by sharing your comments and suggestions. In appreciation of your time, we will enter you in a quarterly drawing for a Hewlett-Packard Palmtop Personal Computer (U.S. government employees

are not eligible for the drawing).

Your Name

Company Name

Job Title

Address

City, State/Province

Country

Zip/Postal Code

Telephone Number with Area Code

Please list the system controller, operating system, programming language, and plug-in modules you are using.

fold here

UNITED STATES

BUSINESS REPLY MAIL

FIRST CLASS PERMIT NO. 37 LOVELAND, CO

HEWLETT-PACKARD COMPANY

cut along this line

Measurement Systems Division

Learning Products Department P.O. Box 301 Loveland, CO 80539-9984

NO POSTAGE

NECESSARY

IF MAILED

IN THE

fold here

Please pencil-in one circle for each stateme n t belo w: Disagree Agree

•

The documentation is well organized. OOOOO

•

Instructions are easy to understand. OOOOO

•The documentation is clearly written. OOOOO

•Examples are clear and useful. OOOOO

•Illustrations are clear and helpful. OOOOO

•The documentation meets my overall expectations. OOOOO

Please write any comments or suggestions below--be specific.

Page 10

10 HP E1411A/E1411B Service Manual

Page 11

Chapter 1

General Information

Introduction This manual contains information required to test, adjust, troubleshoot, and

repair the HP E1411A and HP E1411B C-Size VXI 5 1/2-Digit Multimeters (HP E1411 multimeter). See the HP E1326A/E1411A User’s Manual or the HP E1326B/E1411B User’s Manual for additional information on the HP E1411 multimeter. Figure 1-1 shows the HP E1411A and E1411B multimeters.

Figure 1-1. HP E1411A/B Multimeters

Safety Considerations

Chapter 1 General Information 11

This product is a Safety Class I instrument that is provided with a protective earth terminal when installed in the mainframe. The mainframe, multimeter, and all related documentation should be reviewed for familiarization with safety markings and instructions before operation or service.

Refer to the WARNINGS page (page 4) in this manual for a summary of safety information. Safety information for testing, adjusting, and service follows and is also found throughout this man ual.

Page 12

Warnings and

Cautions

This section contains WARNINGS which must be followed for your protection and CAUTIONS which must be followed to avoid damage to the equipment when performing instrument maintenance or repair.

WARNING

SERVICE-TRAINED PERSONNEL ONLY. The information in this manual is for service-trained personnel who are familiar with electronic circuitry and are aware of the hazards involved. To avoid personal injury or damage to the instrument, do not perform procedures in this manual or do any servicing unless you are qualified to do so.

CHECK MAINFRAME POWER SETTINGS. Before applying power, verify that the mainframe setting matches the line voltage and the correct fuse is installed. An uninterruptible safety earth ground must be provided from the main power source to the supplied power cord set.

GROUNDING REQUIREMENTS. Interruption of the protective (grounding) conductor (inside or outside the mainframe) or disconnecting the protective earth terminal will cause a potential shock hazard that could result in personal injury. (Grounding one conductor of a two-conductor outlet is not sufficient protection.)

IMPAIRED PROTECTION. Whenever it is likely that instrument protection has been impaired, the mainframe must be made inoperative and be secured against any unintended operation.

REMOVE POWER IF POSSIBLE. Some procedures in this manual may be performed with power supplied to the mainframe while protective covers are removed. Energy available at many points may, if contacted, result in personal injury. (If maintenance can be performed without power applied, the power should be removed.)

USING AUTOTRANSFORMERS. If the mainframe is to be energized via an autotransformer (for voltage reduction) make sure the common terminal is connected to neutral (that is, the

grounded side of the main’s supply).

CAPACITOR VOLTAGES. Capacitors inside the mainframe may remain charged even when the mainframe has been disconnected from its source of supply.

12 General Information Chapter 1

Page 13

WARNING

USE PROPER FUSES. For continued protection against fire hazard, replace the line fuse(s) only with fuses of the same current rating and type (such as normal blow, time delay, etc.). Do not use repaired fuses or short-circuited fuseholders.

CAUTION

Multimeter Description

NOTE

Static electricity is a major cause of component failure. To prevent damage to the electrical components in the multimeter, observe anti-static techniques whenever working on the multimeter.

The HP E1411 multimeter is an "instrument" in the slots of a VXIbus mainframe. As su ch, it is assigned an er ro r qu eue, input and ou tput buffers, status registers, and is allocated a portion of mainframe memory for reading storage.

Instruments are based on the logical addresses of the plug-in modules. See the HP 75000 Series C Installation and Getting Started Guide to set the addresses to create an instrument.

The instrument may consist of a multimeter only (stand-alone operation), or can include relay or FET multiplexers (scanning multimeter operation). The instrument is operated from a computer using Standard Commands for Programmable Instruments (SCPI) language.

In stand-alone operation, input signals are connected to the multimeter’s external (faceplate) terminals. In scanning multimeter operation, input signals are connected to the multiplexer channels. The multimeter is linked to relay multiplexers via an analog bus cable. The multimeter is linked to FET multiplexers via an analog bus cable and a digital bus cable.

Multimeter

Specifications

Multimeter specifications are listed in Appendix A of the HP

E1326A/E1411A User’s Manual or the E1326B/E1411B User’s Manual. These specifications are the performance standards or limits against which the instrument may be tested.

Chapter 1 General Information 13

Page 14

Multimeter Serial

Numbers

Multimeters covered by this manual are identified by a serial number prefix listed on the title page. Hewlett-Packard uses a two part serial number in the form 0000A00000, where 0000 is the serial prefix, A is the country of origin (A=USA) and 00000 is the serial suffix. The serial number prefix identifies a series of identical instruments. The serial number suffix is assigned sequentially to each instrument.

If the serial num b er p re fix of you r instrument is gre at er tha n the one listed on the title page , a M an u a l Update (as required ) w il l ex plai n how to adapt this manual to your instrument. If the serial number prefix of your instrument is lower than the one listed on the title page, information contained in Chapter 7- Manual Changes will explain how to adapt this manual to your instrument.

Multimeter Options There are no electrical or mechanical options available for the HP E1411

multimeters. However, for the HP E1411B, you can order Option 1BN that provides a MIL-STD-45662A Calibration Certificate. Contact your nearest Hewlett-Packard Sales and Support Office for information on Option 1BN.

Recommended Test Equipment

Instrument Requirements Recommended

Controller, HP-IB HP-IB compatibility as def ined by IEEE

Mainframe Compatible wit h mu lt im et er HP E1400B/T or

AC Standard Voltage Range 0.1 V to 300 V Datron 4708 with

DC Standard Voltage Range 0.07 V to 300 V Datron 4708 with

Resistance Standard

Table 1-1 lists the te st equipment recom m en ded for testing, adj us ti ng and servicing the multimeter. Essential requirements for each piece of test equipment are described in the Requirements column.

Table 1-1. Recommended Test Equipment

Use*

Model

Standard 488-1987 and the identical ANSI Standard MC1.1: SH1, AH1, T2, TE0, L2, LE0, SR0, RL0, PP0, DC0, DT0, and C1, 2, 3, 4, 5

Values 1 kΩ to 1 MΩ

HP 9000 Series 300 or IBM Compatible PC with HP BASIC

E1421A/B

Option 20

Option 10

Datron 4708 with Option 30

A,F, P,T

A,P

Digital Multimeter General Purpose Voltage and Resistance HP 3458A T

*A = Adjustments, F = Functional Verification, P = Performance Verification Tests, T = Troubleshooting

14 General Information Chapter 1

Page 15

Chapter 2

Installation

Introduction This chapter provides information to install the HP E1411 multimeter,

including initial inspection, preparation for use, environment, storage and shipment.

Initial Inspection

WARNING

Inspect the shipping container for damage. If the shipping container or cushioning material is damaged, keep the container until the shipment contents have been checked and the instrument has been c hecked mechanically and electrically. See Figure 1-1 in Chapter 1 - General Informatio n fo r sh ipment contents . See Chapter 4 - Verification Tests for procedures to check electrical performance.

To avoid possible hazardous electrical shock, do not perform electrical tests if there are signs of shipping damage to any portion of the outer enclosure (covers, panels, etc.).

If the contents are incomplete, if there is mechanical damage or defect, or if the instrument does not pass the electrical performance tests, notify your nearest Hewlett-Packard Sales and Support Office. If the shipping container is damaged or the cushioning material shows signs of stress, notify the carrier as well as Hewlett-Packard, and keep the shipping materials for the

carrier’s inspection.

Preparation for Use

Chapter 2 Installation 15

See Chapter 2 of the HP E1326A/E1411A User’s Manual or the E1326B/E1411B User’s Manual to prepare an HP E1411 multimeter for

use. See the appropriate mainframe user’s manual(s) to prepare your mainframe. If your mainframe is not manufactured by Hewlett-Packard, consult the manufacturer for a list of available manual(s).

Recommended operating environment for the HP E1411 multimeters is 0

to +55 should be stored in a clean, dry environment. For storage and shipment, the temperature range is -40 +40

C with relative humidity <65% (0 oC to +40oC). The instrum en t

C).

C to +75oC with relative humidity <65% (0oC to

Page 16

Shipping the Multimeter

If you need to return an HP E1411 multimeter to Hewlett-Packard, first remove any adapters or connectors before packaging the instrument for shipment. When you return the instrument to Hewlett-Packard, attach a tag to the instrument identifying the owner and indicating service or repair required. In any correspondence, refer to the instrument by model number and full serial nu mber.

When shipping the instrument, we recommend using containers and materials identical to those used in factory packaging, which are available through Hewlett-Packard Sales and Support Offices. Mark the shipping container "FRAGILE" to assure careful handling.

If you use other (commercially available) shipping materials, wrap the instrument in heavy paper or plastic. Use a strong shipping container. A double-wall carton of 2.4 MPa (350 psi) test material is adequate.

Use enough shock-absorbing material (75 to 100 mm layer; 3 to 4 inches) around all sides of the instrument to provide firm cushion and prevent movement in the container. Protect the front panel with cardboard. Seal the shipping container securely and mark the container "FRAGILE" to assure careful handling.

16 Installation Chapter 2

Page 17

Chapter 3

Operating Instructions

Introduction This chapter lists operating information for the HP E1411 multimeter,

including:

• Multimeter operation

• Operator’s check (self-test)

Multimeter Operation

Operator’s Check

See the HP E1326A/E1411A User’s Manual or the E1326B/E1411B User’s Manual for multimeter operation, including:

• Getting started

• Configuring the multimeter

• Using the multimeter

• Understanding the multimeter

• Multimeter command reference

• Multimeter specifications

• Multimeter error messages

• Register-based programming

The Operator’s Check for the HP E1411 multimeter consists of sending the self-test (*TST?) command and checking the return. The operator’s check can be used to verify the multimeter is connected properly and is responding to the self-tes t command.

As required, see the mainframe user’s manual for information on address selection. See the HP E1326A/E1411A User’s Manual or the

E1326B/E1411B User’s Manual for information on multimeter SCPI commands.

Self-Test Procedure 1. Verify the multimeter is properly installed in the mainframe and

the mainframe has passed its power-on sequence test.

2. Execute the multimeter functional test using the *TST? command

(see example following).

3. A "0" returned means no self-test failure, while "1", "2", "3", or "4"

returned means a failure was detected. See Chapter 8 - Service for troubleshooting information (see NOTE following).

Chapter 3 Operating Instructions 17

Page 18

NOTE

Test failures can be caused by improper cabling, improper selection of the interface select code, primary, and/or secondary address setting. Verify proper connection and address selection before troubleshooting.

Example:

Multimeter Self-Test

An example follows which uses an HP 9000 Series 300 computer with HP BASIC and a multimeter address of 70903.

10 OUTPUT 70903;"*TST?" Send the self-test command 20 ENTER 70903;A Enter self-test result 30 PRINT A 40 END

18 Operating Instructions Chapter 3

Page 19

Chapter 4

Verification Tests

Introduction The three levels o f te st p ro ce du re s de sc ri be d in this chapter are us ed

to verify that the HP E1411 multimeter:

• is functional (Functional Verification)

• meets selected testable specifications (Operation Verification)

• meets all testable specifications (Performance Verification)

WARNING

Test Conditions /

Procedures

Do not perform any of the following verification tests unless you are a qualified, service-trained person and have read the WARNINGS and CAUTIONS in

For valid tests, all test equipment and the multimeter must have a one hour warmup, the line voltage must be 115/230 Vac ± 10%, and multimeter Auto Zero must be set to ON. See Table 1-1, Recommended Test Equipment, for

test equipment requirements.

For best test accuracy, the ambient temperature of the test area should be between 18 Performance Verification tests at least once a year. For heavy use or severe

operating environments, perform the tests more often.

The verification tests assume the person performing the tests understands how to operate the mainframe, multimeter and specified test equipment. The test procedures do not specify equipment settings for test equipment, except in general terms. It is assumed a qualified, service-trained person will select and connect the cables, adapters, and probes required for the test.

C and 28oC and stable to within ±1oC. You should perform the

Chapter 1 - General Information

Performance Test

Record

Chapter 4 Verification Tests 19

Table 4-1, Performance Test Record for the HP E1411 Multimeter, at the end of this chapter, provides space to enter the results of each Performance Verification test and to compare the results with the upper and lower limits for the test. You can make a copy of this form, if desired.

Page 20

The value in the "Measurement Uncertainty" column of Table 4-1 is derived from the specifications for the source used for the test, and represents the expected accuracy of the source. The value in the "Test Accuracy Ratio (TAR)" column of Table 4-1 is the ratio of multimeter accuracy to measurement uncertainty.

Verification Test

Examples

Functional Verification Test

Each Performance Verification Test includes an example program to perform the te st. Eac h ex am p le u se s ad dr es s 70 90 3 fo r th e m ul tim et er , an d an HP 9000 Series 200/300 computer running HP BASIC and Standard Commands for Programmable Instruments (SCPI) commands. You may need to change the multimeter address and/or command syntax to perform the examples for your setup.

As required, see the mainframe or command module user’s manual for information on address selection and cabling guidelines. See the HP

E1326A/E1411A User’s Manual or the E1326B/E1411B User’s Manual for information on multimeter SCPI commands.

The functional verification test for the HP E1411 multimeter consists of the multimeter self-test. You can perform this test to verify the multimeter is functional and is communicating with the mainframe, external computer and/or exte rn al ter m in al .

Self-Test Procedure This test verifies the multimeter is communicating with the mainframe,

external controller, and/or external terminal by performing a multimeter self-test. Do the fol lo w in g st ep s to perform the se lf -t es t:

1. Verify the multimeter is correctly installed in the mainframe.

2. Connect a power cable to the mainframe and set mainframe

power ON. Verify proper mainframe power-up sequence. (See

the mainframe user’s manual for additional information.) If correct, proceed with step 3. If incorrect, troubleshoot the problem before proceeding .

3. Execute the multimeter functional verification test using the

*TST? command. See the following exam ple which uses an HP

9000 Series 300 computer with HP BASIC and a multimeter address of 70903.

4. A "0" returned means no failure, while "1", "2", "3", or "4" returned

means a failure w as det ec te d. See Chapter 8 - Service for troubleshooting information.

20 Verification Tests Cha pt er 4

Page 21

NOTE

Example: Self-Test

Test failures can be caused by improper selection of the interface select code, primary address setting, and/or secondary address setting. Verify proper address selection before troubleshooting.

10 OUTPUT 70903;"*TST?" !Send the self-test command 20 ENTER 70903;A !Enter the test result 30 PRINT A !Display the result 40 END

Operation Verification Tests

Performance Verification Tests

There are no separate operation verification tests for the HP E1411 multimeter. Use the Performance Verification tests for post-repair checkout.

Performance verification tests are used to check the multimeter’s electrical performance against the specifications in Appendix A - Specifications of the

HP E1326A/E1411A User’s Manual or the E1326B/E1411B User’s Manual as the performance standards. These tests are suitable for incoming inspection and troubleshooting. The performance verification tests for the HP E1411 multimeter are:

• Test 4-1: DC Voltage Test (Zero Volt Input)

• Test 4-2: DC Voltage Test (DCV Input)

• Test 4-3: AC Voltage Test

• Test 4-4: Resistance Test (4-Wire Ohms)

Chapter 4 Verification Tests 21

Page 22

Test 4-1: DC Voltage Test (Zero Volt Input)

This test verifies DC Voltage accuracy on all five ranges using a zero volt input.

Equipment Setup 1. Connect the equipment as shown in Figure 4-1.

Figure 4-1. DC Voltage (Zero Volt Input) Setup

2. Set the HP E1411 multimeter as follows:

• Reset Multimeter ..................................................*RST

• Auto Zero ............ .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .ON

• Power Line Cycles (PLC) ............................................1

• Line Freq Reference (CAL:LFR) ...... 50Hz or 60Hz

NOTE

*RST sets Auto Zero to ON and Power Line Cycles to 1.

Test Procedure

22 Verification Tests Cha pt er 4

Page 23

1. Set the HP E1411 range to 0.113 V (0.125 V with 10% over- range)

and measure the in pu t vo lt ag e w ith M E AS :VO LT: DC ? 0. 1

2. Observe the input, record the results on the Performance Test

Record, and verify th e re sults are within sp ec if ie d li m it s (a t th e

range selected for 1 PLC).

3. Repeat step s 1 and 2 for the followi ng ranges:

E1411 Range 10% Overrange Input

Example: Zero Volt

DCV Test

0.91 V

7.27 V

58.10 V

300.00 V

4. Remove power and disconnect test equipment.

64 V

None

1 V 8 V

0 V 0 V 0 V 0 V

This example performs a DCV test for zero volts input and a power line reference frequency of 60 Hz. Change line 20 to OUTPUT 70903;"CAL:LFR 50" for 50 Hz operation.

1 !Zero Volts Performance Verification 10 OUTPUT 70903;"*RST" !Resets and sets autozero ON

20 OUTPUT 70903;"CAL:LFR 60" !Sets line reference to 60 Hz 30 OUTPUT 70903;"MEAS:VOLT:DC? .1" !Measure 0.113 V range 40 ENTER 70903;A 50 PRINT A 60 OUTPUT 70903;"MEAS:VOLT:DC? .9" !Measure 0.91 V range 70 ENTER 70903;B 80 PRINT B 90 OUTPUT 70903;"MEAS:VOLT:DC? 7" !Measure 7.27 V range 100 ENTER 70903;C 110 PRINT C 120 OUTPUT 70903;"MEAS:VOLT:DC? 58" !Measure 58.1 V range 130 ENTER 70903;D 140 PRINT D 150 OUTPUT 70903;"MEAS:VOLT:DC? 300" !Measure 300 V range 160 ENTER 70903;E 170 PRINT E 180 END

and PLC to 1

Chapter 4 Verification Tests 23

Page 24

Test 4-2: DC Voltage Test (DCV Input)

This test verifies DC Voltage accuracy on all five ranges with DC voltage inputs.

Equipment Setup 1. Connect the equipment as shown in Figure 4-2.

WARNING

The DC Standard (Datron 4708, Option 10) can produce dangerous voltages which are present on the terminals. Do not touch the front (or rear) panel terminals unless you are sure no dangerous voltage is present.

Figure 4-2. DC Voltage (DCV Input) Setup

2. Set the HP E1411 multimeter as follows:

• Reset Multimeter .................................................*RST

• Auto Zero ................................................................ON

• Power Line Cycles (PLC) ...........................................1

• Line Freq Reference (CAL:LFR) ..... 50Hz or 60Hz

24 Verification Tests Cha pt er 4

Page 25

NOTE

*RST sets Auto Zero to ON and Power Line Cycles to 1.

Test Procedure 1. Set the DC Standard Output to 0.1 DCV.

2. Set the HP E1411 range to 0.113 V (0.125 V with 10% overrange)

with CONF:VOLT:DC .1

3. Measure the input with READ? and verify the results are within

specified limits (at the range selected for 1 PLC). Record results on Performance Test Record.

4. Repeat steps 1 through 3 for the following DC Standard voltage

settings and HP E1411 ranges:

E1411 Range 10% overrange DC Std Output

Example: DC Voltage

Test (DCV Input)

NOTE

0.91 V

7.27 V

58.10 V

300.00 V

5. Remove power and disconnect test equipment.

64 V

None

1 V 8 V

0.9 V

7.0 V

58.0 V

300.0 V

This example performs a DCV test for DC volts input and a power line reference frequency of 60 Hz. Change line 80 to OUTPUT 70903;"CAL:LFR 50" for 50 Hz operation.

When connected to the HP E1411 multimeter, some DC Standards may exhibit voltage variations at the start of a measurement. The WAIT 1 statement (line 150) provides a one second wait before measurement to allow settling of the DC Standard output.

1 !DC Voltage Performance Verification 10 OPTION BASE 1 20 DIM Range(5), Volts(5), Read_meas(5) 30 DATA 0.113, 0.91, 7.27, 58.1, 300.0 40 READ Range(*) 50 DATA 0.1, 0.9, 7.0, 58.0, 300.0 60 READ Volts(*) 70 OUTPUT 70903;"*RST" !Set autozero on and PLC 1 80 OUTPUT 70903;"CAL:LFR 60" !Set 60 Hz line frequency

Chapter 4 Verification Tests 25

Page 26

90 FOR I=1 TO 5 100 PRINT "Set DC Standard to ";Volts(I);"VDC" 110 PRINT "Press Continue when ready" 120 PAUSE 130 CLEAR SCREEN 140 OUTPUT 70903;"CONF:VOLT:DC";Range(I) !Set DCV, range 150 WAIT 1 !Wait for settling 160 OUTPUT 70903;"READ?" 170 ENTER 70903;Read_meas(I) !Enter DC voltage 180 NEXT I 190 FOR I=1 TO 5 200 PRINT "Voltage on";Range(I);"V range =";Read_meas(I);"VDC" 210 NEXT I 220 END

Test 4-3: AC Voltage Test

This test verifies AC voltage accuracy on the 87.5 mV and 300 V ranges using sine wave inputs at ≥50% of full scale. The input frequency varies from 20 Hz to 10 kHz. The DC component must be <10% of the AC

component.

NOTE

The DC Voltage Performance test must be performed prior to the AC Voltage test to check the A/D accuracy on all ranges. If the DC Voltage test has not been performed, the AC voltage must be checked on all ranges.

Equipment Setup 1. Connect the equipment as shown in Figure 4-3.

WARNING

The AC Standard (Datron 4708, Option 20) can produce dangerous voltages which are present on the terminals. Do not touch the front (or rear) panel terminals unless you are sure no dangerous voltage is present.

26 Verification Tests Cha pt er 4

Page 27

Figure 4-3. AC Voltage Setup

2. Set the HP E1411 multimeter as follows:

• Reset Multimeter ..................................................*RST

• Auto Zero ................................................................ON

• Power Line Cycles (PLC) ...........................................1

• Line Freq Reference (CAL:LFR) ..... 50Hz or 60Hz

NOTE

*RST sets Auto Zero to ON and Power Line Cycles to 1.

Test Procedure 1. Set the AC Standard Output to 0.07 Vac at 20 Hz sine wave.

2. Set the HP E1411 range to 79.5 mV (87.5 mV with 10% overrange)

using CONF:VOLT:AC .07.

3. Measure the AC input voltage with READ? and verify the

results are within specified limits (at the range selected for 1 PLC). Record the results on the Performance Test Record.

4. Repeat steps 1 through 3 using the following AC Standard

voltage and frequency settings, and HP E1411 ranges:

Chapter 4 Verification Tests 27

Page 28

E1411

Range

10%

overrange

AC Standard Output

Voltage (Vac) Frequency (Hz)

Example: AC Voltage

Test

NOTE

79.5 mV

300.0 V

87.5 mV

None

0.07 V

300.00 V

60 Hz 5 kHz 10 kHz 5 kHz

5. Remove power and disconnect test equipment.

This example performs an ACV test for a power line reference frequency of 60 Hz. Change line 80 to OUTPUT 70903;"CAL:LFR 50" for 50 Hz operation.

When connected to the HP E1411 multimeter, some AC Standards may exhibit voltage variations at the start of a measurement. The WAIT 1 statement (line 160) allows settling for the AC Standard output.

1 ! AC Voltage Performance Verification 10 OPTION BASE 1 20 DIM Read_meas(5),Source_volts(5),Source_freq(5) 30 DATA 0.07, 0.07, 0.07, 0.07, 300.0 40 READ Source_volts(*) 50 DATA 20, 60, 5000, 10000, 5000 60 READ Source_freq(*) 70 OUTPUT 70903;"*RST" !Set autozero ON, PLC 1 80 OUTPUT 70903;"CAL:LFR 60" !Set 60 Hz line ref frequency 90 FOR I=1 TO 5 100 PRINT "1. Set AC Standard output to";Source_volts(I);"Vac" 110 PRINT "2. Set AC Standard frequency to";Source_freq(I);"Hz" 120 PRINT "3. Press Continue when ready" 130 PAUSE 140 CLEAR SCREEN 150 OUTPUT 70903;"CONF:VOLT:AC";Source_volts(I) 160 WAIT 1 !One second settling time 170 OUTPUT 70903;"READ?" 180 ENTER 70903;Read_meas(I) 190 NEXT I 200 FOR I=1 TO 5 210 PRINT "Voltage for";Source_volts(I);"Vac range @";Source_freq(I);

"Hz=";Read_meas(I);"Vac" 220 NEXT I

28 Verification Tests Cha pt er 4

Page 29

230 END

Test 4-4: Resistance Test (4-Wire Ohms)

This test verifies the 4-wire resistance accuracy of the 2kΩ, 100kΩ, and 1MΩ ranges.

NOTE

The DC Voltage performance test must be performed prior to the Resistance Test to check the A/D accuracy on all ranges. If the DC Voltage test has not been performed, resistance must be checked on all ranges at 0 and at 50% of full scale.

Figure 4-4. Resistance Test Setup

Equipment Setup 1. Connect the equipment as shown in Figure 4-4

2. Set the HP E1411 multimeter as follows:

• Reset Multimeter ..................................................*RST

• Auto Zero ............ .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ON

• Power Line Cycles (PLC) .............................................1

Chapter 4 Verification Tests 29

Page 30

• Line Freq Reference (CAL:LFR) ....50 Hz or 60 Hz

NOTE

Test Procedure 1.

*RST sets Auto Zero to ON and Power Line Cycles to 1.

Set the Resistance Standard to 1 kΩ setting

Set the HP E1411 range to 1861Ω (2048Ω with 10% overrange)

with CONF:FRES 1861

3. Measure the input resistance with READ? and verify the results

are within specified limits (at the range selected for 1 PLC). Record the results on the Performance Test Record.

NOTE

For best measurement accuracy, you may want to measure the ACTUAL Resistance Standard value. You can do this by recording the front panel display of the resistance value, or measuring the resistance with an HP 3458A multimeter or eq ui va le nt.

For example, supp os e th e AC TUAL res is tan ce va lue for the 1 kΩ settin g is

1001.3Ω. Then, the Lower Limit for this value = 1001.03 Ω and th e Upp er Limit = 1001.57Ω. These limits would replace the existing limits of

999.730Ω and 1000.270Ω shown in Table 4- 1. If th e mea su re d va lu e fa ll s within the revised limits, the test passes.

4. Repeat steps 1 through 3 using the following Resistance Standard

settings:

E1411 Range 10%

overrange

119,156 Ω

1,048,576 Ω

5. Remove power and disconnect test equipment.

131,052 Ω

N/A

Resistance Std Setting

100 kΩ

1 MΩ

30 Verification Tests Cha pt er 4

Page 31

Example: 4-Wire Ohms

Test

This example performs a 4-wire ohms resistance test for a power line reference frequency of 60 Hz. Change line 80 to OUTPUT 70903;"CAL:LFR 50" for 50 Hz operation.

The program also calculates the Upper Limit and Lower Limit values for ACTUAL Resistance Standard resistance value (lines 170-190). If the

actual Resistance Standard value is different than 1kΩ, 100k Ω, or 1MΩ, replace the Lower Limit and Upper Limit values shown in Table 4-1, Performance Test Record for the HP E1411 Multimeter, with the values computed by the program.

1 !4-Wire Ohms Performance Verification 10 OPTION BASE 1 20 DIM Range(3),Source(3),Read_meas(3),Limit(3),Ohms(3) 30 DATA 1861, 119156, 1048576 40 READ Range(*) 50 DATA 1000, 100000, 1000000 60 READ Source(*) 70 OUTPUT 70903;"*RST" !Set autozero on and PLC 1 80 OUTPUT 70903;"CAL:LFR 60" !Set 60 Hz line ref frequency 90 FOR I=1 TO 3 100 PRINT "1. Set Resistance Standard to";Source(I);"Ohms" 110 PRINT "2. Measure ACTUAL Resistance Standard value (in Ohms)" 120 PRINT "Enter ACTUAL Resistance Standard value (in

Ohms)",Ohms(I) 130 CLEAR SCREEN 140 OUTPUT 70903;"CONF;FRES";Range(I)!Set 4-wire ohms, range 150 OUTPUT 70903;"READ?" 160 ENTER 70903;Read_meas(I) 170 IF I=1 THEN Limit(I)=.00025*Ohms(I)+2.0E-2 !2 kOhm limits 180 IF I=2 THEN Limit(I)=.00025*Ohms(I)+1 !131 kOhm limits 190 IF I=3 THEN Limit(I)=.00025*Ohms(I)+10 !1 MOhm limits 200 NEXT I 210 PRINT "Measured Source Low Limit High Limit" 220 PRINT "Resistance Resistance (Ohms) (Ohms)" 230 PRINT 240 Format:IMAGE 7D.3D,6X,7D.3D,6X,7D.3D,6X,7D.3D 250 FOR I=1 TO 3 260 PRINT USING Format;Read_meas(I),Ohms(I),Ohms(I)-Limit(I),

Ohms(I)+Limit(I) 270 NEXT I 280 END

Chapter 4 Verification Tests 31

Page 32

Performance Test Record

Table 4-1, Performance Test Record for the HP E1411 Multimeter, is a form you can copy and use to record performance verification test results for the multimeter. Page 3 of Table 4-1 shows multimeter accuracy, measurement uncertainty and test accuracy ratio (TAR) values. See Appendix A - Calculating Multimeter Accuracy for example calculations of Table 4-1 entrie s.

NOTE

Multimeter

Accuracy

Measurement

Uncertainty

The accuracy, mea sure m en t unce rtainty, and TAR values sho wn in Table 4-1 are valid ON LY for the specific tes t co nditions, test equ ip m en t, and assumptions described. If you use different test equipment and/or change the test conditions, you will need to compute the specific values for your test setup.

Accuracy is defined for DC Voltage, AC Voltage, and 4-Wire Resistance measurements using the 90-day specifications in Appendix A -

Specifications in the HP E1326A/E1411A User’s Manual or the E1326B/E1411B User’s Manual. In Table 4-1, the "High Limit" and "Low

Limit" columns represent the multimeter accuracy for the specified test conditions.

For the performance verification tests in this manual, measurement uncertainties are calculated assuming a Datron 4708 source for inputs to the multimeter. Measurement uncertainties in Table 4-1 are calculated for the 90-day accuracy specifications in the Datron 4708 User’s Handbook.

Test Accuracy

Ratio (TAR)

In Table 4-1, the "Test Accuracy Ratio (TAR)" is calculated from (high limit - expected measurement)/measurement uncertainty. "N/A" means measurement uncertainty and TAR do not apply to the measurement. If the TAR value is <10:1, the TAR value is listed. If the TAR value is >10:1, the entry is >10:1.

32 Verification Tests Cha pt er 4

Page 33

Test Facility:

Table 4-1. Performance Test Record for the HP E1411 Multimeter (Page 1 of 3)

Name _________________________________________

Address ________________________________________

City/State _______________________________________

Phone _________________________________________

Model ________________________________________

Serial No. ______________________________________

Options _______________________________________

Firmware Rev. __________________________________

Special Notes:

Report No. _____________________________________

Date ___________________________________________

Customer ______________________________________

Tested by _____________________________________

Ambient temperature __________________________

Relative humidi ty ____________ __ __ __ _____________%

Line frequency __ __ ______________ __ ___ Hz (nominal)

____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ _____________________________________________________________________________________________

Chapter 4 Verification Tests 33

Page 34

Table 4-1. Performance Test Record for the HP E1411 Multimeter (Page 2 of 3)

Model __________ __ __ __ _____________ Rep ort No . __ __ __ __ __ __________ Date ___ __ __ __ ___________

Test Equipment Used:

Description

1. DATRON 4708

2. ________________________________

3. ________________________________

4. ________________________________

5. ________________________________

6. ________________________________

7. ________________________________

8. ________________________________

9. ________________________________

Model No. Trace No. Cal Due Date

_______________

10. ________________________________

11. ________________________________

12. ________________________________

11. ________________________________

12. ________________________________

13. ________________________________

_______________

34 Verification Tests Cha pt er 4

Page 35

Table 4-1. Performance Test Record for the HP E1411 Multimeter (Page 3 of 3)

Model ____________________________ Report No. ____________________________ Date_________________

90 day Specifications

Test No.

DC Voltage (Zero Volts Input) (Values in V)

4-1 0.0

DC Voltage (DCV Input) (Values in VDC)

4-2 0.1

AC Voltage (20 Hz, 60 Hz, 10 kHz, 5 kHz) (Valu es in VA C)

4-3 0.07

Test Input

300.0

300.00

0.0

0.9

7.0

58.0

0.07

DMM Range

300.000

0.113

0.910

7.270

58.100

0.113

0.910

7.270

58.100

0.0875

300.00

Low Limit

-.000005

-.000015

-.000050

-.001000

-.005000

.099972 .899868

6.999250

57.990300

299.950000

.067480 .069327 .069327 .067578

296.125000

Measured Reading

__________ __________ __________ __________ __________

High Limit

+.000005 +.000015 +.000050 +.001000 +.005000

.100028 .900132

7.000750

58.009799

300.050000

.072523 .070673 .070673 .072423

303.875000

Meas Uncert*

.0000012 .0000044 .0000210 .0002820 .0017750

.000020 .000016 .000016 .000016 .047000

N/A N/A N/A N/A N/A

Test Acc Ratio (TAR)**

N/A N/A N/A N/A N/A

>10:1 >10:1 >10:1 >10:1 >10:1

4-Wire Resistance (Val ue s in Ohms )

4-4 1000

100000

1000000

* Measurement Uncertainty of Datron 4708 source for 90 days since calibration and 23 ** TAR = multimeter accuracy/measurement uncertainty, rounded to nearest integer for <10:1 and >10:1 otherwise.

2000

131000

1000000

999.730

99974.000

999740.000

__________ __________ __________

1000.270

100026.000

1000260.000

C ±1oC.

0.008

0.900

22.000

>10:1 >10:1 >10:1

Chapter 4 Verification Tests 35

Page 36

Notes

36 Verification Tests Cha pt er 4

Page 37

Chapter 5

Adjustments

Introduction This chapter contains procedures to adjust the HP E1411 multimeter for

peak performance. For best performance, the instrument should be adjusted after repair. Al l ad ju st m en ts are p er fo rmed electrically , so manual adjustment of the multimeter is not necessary.

WARNING

NOTE

Adjustment

Conditions /

Procedures

Do not perform any of the following adjustments unless you are a qualified, service-trained person, and have read the WARNINGS and CAUTIONS in

ALL adjustment procedures MUST be pe rfor med in the or der sh own in this manual (DC Voltage, then AC Voltage, and then Resistance).

For valid adjustments, the HP E1411 multimeter and test equipment used must have at least a 60 minute warm-up, and the line voltage must be

115/230 Vac ±10%. For best accuracy, the temperature of the area where adjustments are made should be between 18 within ±1 equipment requirements.

The adjustmen t pr oc ed ur es ass um e the per so n pe rf or min g the adjustments understands how to operate the mainframe, multimeter and specified test equipment. Th e ad ju st ment procedures do not specify test equipment settings, except in general terms. It is assumed a qualified, service-trained person will select and connect the cables and jumpers required for the adjustments.

C. See Table 1-1, Recommended Test Equipment, for test

Chapter 1 - General Information.

C and 28oC and stable to

Chapter 5 Adjustments 37

Page 38

DC Voltage Adjustments

This procedure adjusts HP E1411 multimeter DC voltage measurement accuracy.

Equipment Setup 1. Connect the equipment as shown in Figure 5-1.

WARNING

2. Set the HP E1411 as follows:

Figure 5-1. DC Voltage Adjustment Setup

• Reset Multimeter ......................................................*RST

• Auto Zero ............ .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ON

• Power Line Cycles (PLC) .................................................1

• Line Freq Reference (CAL:LFR ) ....... 50 Hz or 60 Hz

38 Adjustments Chapter 5

Page 39

NOTE

Adjustment

Procedure

*RST sets Auto Zero to ON and Power Line Cycles to 1.

1. Set the DC Standard output to 7.7 V

2. Set the HP E1411 range to 8 V, and adjust the multimeter

at 7.7 V using:

VOLT:DC:RANG 8

FUNC:VOLT:DC

CAL:VAL 7.7 TRIG:DEL .05 CAL?

Verify that the returned calibration error code is 0 (no error). If not 0, see Table 5-1 for a list of calibration errors and codes. The calibration error can be returned to an external computer using an ENTER type statement.

4. Repeat steps 1 th rough 3 using the fo llowi ng HP E1411

voltage ranges and DC Standard settings:

HP E1411 range DC Standard Output

8 V

0.125 V

0.125 V 1 V 1 V

64 V 64 V

300 V

-7.7 V

+0.121 V

- 0.121 V +0.97 V

- 0.97 V

+62 V

-62 V

+300 V

-300 V

5. Remove power and disconnect test equipment.

Example: DC

Voltage

Adjustments

This example performs DC voltage adjustments for a power line reference frequency of 60 Hz. Change line 80 to OUTPUT 7090 3;" CAL:LFR 50 " for 50 Hz operation.

If no calibration error occurs (Cal_code = 0 in line 210), the program displays an "adjustment complete" message. If a calibration error occurs, the program displays the calibration error and prompts you to repeat the adjustment (see Table 5-1 for a list of calibration errors).

Chapter 5 Adjustments 39

Page 40

When connected to the HP E1411 multimeter, some DC Standards may exhibit voltage variations at the start of a measurement. TRIG:DEL .05 (line

190) adds a 0.8 sec wait before calibration begins to allow settling time for the DC Standard output. TRIG:DEL .05 is used since the input is sampled 16 times before the calibration is performed. Thus, total delay added = 0.05 seconds x 16 = 0.8 seconds.

1 ! DC Voltage Adjustments 10 OPTION BASE 1 20 DIM Range(10),Volts(10) 30 DATA 8.0, 8.0, 0.125, 0.125, 1.0, 1.0, 64.0, 64.0, 300.0, 300.0 40 READ Range(*) 50 DATA 7.7, -7.7, .121, -.121, .97, -.97, 62.0, -62.0, 300.0, -300.0 60 READ Volts(*) 70 OUTPUT 70903;"*RST" !Set autozero on and PLC 1 80 OUTPUT 70903;"CAL:LFR 60" !Set 60 Hz line ref frequency 90 FOR I=1 TO 10 100 Re_try: ! 110 CLEAR SCREEN 120 PRINT "Set DC Standard to";Volts(I);"VDC" 130 PRINT "Press Continue when ready" 140 PAUSE 150 CLEAR SCREEN 160 OUTPUT 70903;"FUNC:VOLT:DC" !Set DCV function 170 OUTPUT 70903;"VOLT:RANG ";Range(I) !Set E1411 range 180 OUTPUT 70903;"CAL:VAL";Volts(I) !Set CAL:VAL value 190 OUTPUT 70903;"TRIG:DEL .05" !Wait for settling 200 OUTPUT 70903;"CAL?" !Perform calibration 210 ENTER 70903 USING "K";Cal_code !Return cal error code 220 IF Cal_code <>0 THEN 230 PRINT "Calibration Error";Cal_code;"for ";Volts(I);"VDC input." 240 PRINT "Check source value/connections, then" 250 PRINT "press Continue to retry this adjustment" 260 PAUSE 270 GOTO Re_try 280 ELSE 290 PRINT "Adjustment complete for";Volts(I);"VDC input" 300 END IF 310 PRINT "Press Continue for the next adjustment" 320 PAUSE 330 CLEAR SCREEN 340 NEXT I 350 END

40 Adjustments Chapter 5

Page 41

AC Voltage Adjustments

This procedure adjusts the HP E1411 AC voltage measurement accuracy.

NOTE

The DC Voltage adjustment MUST be performed before the AC Voltage adjustment.

Equipment Setup 1. Connect the equipment as shown in Figure 5-2

Figure 5-2. AC Voltage Adjustment Setup

2. Set the HP E1411 as follows:

• Reset Multimeter ....................................................*RST

• Auto Zero .................................................................... ON

• Power Line Cycles (PLC) .............................................. 1

• Line Freq Reference (CAL:LFR ) ...... 50 Hz or 60 Hz

Chapter 5 Adjustments 41

Page 42

NOTE

Adjustment

Procedure

*RST sets Auto Zero to ON and Power Line Cycles to 1.

1. Set the AC Standard output to 5.6 Vac at 1 kHz

2. Set the HP E1411 range to 5.6 V, and adjust the multimeter

at 5.6 V using:

FUNC:VOLT:AC VOLT:AC:RANG 5.6 CAL:VAL 5.6 TRIG:DEL .05 CAL?

Verify that the returned calibration error code is 0 (no error).

If not 0, see Table 5-1 for a list of calibration errors and codes.

4. Remove power and disconnect test equipment

Example: AC Voltage

Adjustments

This example performs an AC voltage adjustment for a power line reference frequency of 60 Hz. Change line 20 to OUTPUT 7090 3;" CAL:LFR 50 " for 50 Hz operation.

If no calibration error occurs (Cal_code = 0 in line 130), the program displays an "adjustment complete" message. If a calibration error occurs, the program displays the calibration error (see Table 5-1 for a list of calibration errors).

When connected to the HP E1411 multimeter, some AC Standards may exhibit voltage variations at the start of a measurement. TRIG:DEL .05 (line

110) adds a 0.8 sec wait before calibration begins to allow settling time for the AC Standard output. TRIG:DEL .05 is used since the input is sampled 16 times before the calibration is performed. Thus, total delay added = 0.05 seconds x 16 = 0.8 seconds.

42 Adjustments Chapter 5

Page 43

1 ! AC Voltage Adjustments 10 OUTPUT 70903;"*RST" !Set autozero on and PLC 1 20 OUTPUT 70903;"CAL:LFR 60" !Set 60 Hz line ref frequency 30 Re_try: ! 40 PRINT "Set AC Standard to 5.6 Vac at 1.0 kHz" 50 PRINT "Press Continue when ready" 60 PAUSE 70 CLEAR SCREEN 80 OUTPUT 70903;"FUNC:VOLT:AC" !Set ACV function 90 OUTPUT 70903;"VOLT:RANG 5.6" !Set 5.6 Vac range 100 OUTPUT 70903;"CAL:VAL 5.6" !Set 5.6 Vac cal value 110 OUTPUT 70903;"TRIG:DEL .05" !Wait for settling 120 OUTPUT 70903;"CAL?" !Perform calibration 130 ENTER 70903 USING "K";Cal_code 140 IF Cal_code <> 0 THEN 150 PRINT "Calibration Error";Cal_code;"on 5.6 Vac range" 160 PRINT "Check source value/connections, then" 170 PRINT "press Continue to retry this adjustment" 180 PAUSE 190 CLEAR SCREEN 200 GOTO Re_try 210 ELSE 220 PRINT "AC Voltage adjustment complete" 230 END IF 240 END

Chapter 5 Adjustments 43

Page 44

Resistance Adjustments

This procedure adjusts the HP E1411 multimeter 4-wire resistance measurement accuracy.

NOTE

The DC Voltage adjustment and the AC Voltage adjustment MUST be performed before the Resistance adjustment.

Equipment Setup 1. Connect the equipment as shown in Figure 5-3

Figure 5-3. Resistance Adjustments Setup

2. Set the HP E1411 as follows:

• Reset Multimeter .................................................... *RST

• Auto Zero ................................................................... ON

• Power Line Cycles (PLC) .............................................. 1

• Line Freq Reference (CAL:LFR) .......... 50 Hz or 60 Hz

44 Adjustments Chapter 5

Page 45

NOTE

Adjustment

Procedure

*RST sets Auto Zero to ON and Power Line Cycles to 1.

Set the Resistance Standard to 1 kΩ.

Set the HP E1411 range to 2 kΩ, and adjust the multimeter

at 1 kΩ using:

FUNC:FRES FRES:RANG 2000 CAL:VAL 1000 CAL?

NOTE

For best adjustment accuracy, you may want to measure the ACTUAL resistance value of the Resistance Standard and use the value in the CAL:VAL command. You can read the actual resistanc e va lue from th e Datron front panel or you can measure the value with an HP 3458A multimeter or equivalent.

3. Verify that the returned calibration error code is 0 (no error).

If not 0, see Table 5-1 for a list of calibration errors and codes. The calibration error can be returned to the external computer using an ENTER type statement.

4. Repeat steps 1 th rough 3 using the fo llowi ng HP E1411

(and FRES:RANG) ranges, and Resistance Standard (and CAL:VAL) values:

HP E1411 Range Resistance Standard

16000 Ω

1000000 Ω

* Or, use actual measured source resistance value

10000 Ω*

1000000 Ω*

5. Remove power and disconnect test equipment.

Chapter 5 Adjustments 45

Page 46

Example: 4-Wire

Resistance

Adjustments

This example performs a 4-wire ohms resistance adjustment for a power line reference frequency of 60 Hz. Change line 80 to OUTPUT 70903;"CAL:LFR 50" fo r 50 Hz ope rati on . If a cali br atio n er ro r oc cu rs , th e program displays the calibration error and prompts you to repeat the adjustment (see Table 5-1 for a list of calibration errors).

1 ! 4-Wire Resistance Adjustments 10 OPTION BASE 1 20 DIM Range(3),Source(3) 30 DATA 2000, 16000, 1048576 40 READ Range(*) 50 DATA 1000, 10000, 1000000 60 READ Source(*) 70 OUTPUT 70903;"*RST" !Set autozero on and PLC 1 80 OUTPUT 70903;"CAL:LFR 60" !Set 60 Hz line ref frequency 90 FOR I=1 TO 3 100 Re_try: ! 110 PRINT "1. Set Resistance Standard to";Source(I);"Ohms" 120 PRINT "2. Measure ACTUAL Resistance Standard value (in Ohms)" 130 PRINT "Enter ACTUAL Resistance Standard value (in

Ohms)",Ohms_actual 140 CLEAR SCREEN 150 OUTPUT 70903;"FUNC:FRES" !Set 4-wire ohms 160 OUTPUT 70903;"FRES:RANG ";Range(I)!Set resistance range 170 OUTPUT 70903;"CAL:VAL";Ohms_actual(I)!Set cal value 180 OUTPUT 70903;"CAL?" !Perform calibration 190 ENTER 70903;Cal_code 200 IF Cal_code <> 0 THEN 210 PRINT "Calibration Error";Cal_code;"with";Source(I);"Ohms input." 220 PRINT "Check source value/connections, then" 230 PRINT "Press Continue to repeat this adjustment" 240 PAUSE 250 CLEAR SCREEN 260 GOTO Re_try 270 ELSE 280 PRINT "Adjustment complete with";Source(I);"Ohms source" 290 PRINT "Press Continue for the next adjustment" 300 PAUSE 310 CLEAR SCREEN 320 END IF 330 NEXT I 340 PRINT "Resistance adjustments completed" 350 END

46 Adjustments Chapter 5

Page 47

Calibration Errors

Error Title Description Code*

0 No Error N o erro r has occurre d si nc e la st tim e th e erro r code was read.

Table 5-1 summarizes calibration error numbers, titles and descriptions for the HP E1411 multimeter. Note that an error is returned if the adjustment (calibration) standard used is outside the calibration range of the multimeter

(between ±[0.5 full scale and full scale]).

Table 5-1. HP E1411 Multimeter Calibration Errors

4 Reading

Overrun

6Calibration

Error

7 Checksum

Error

8 Invalid

CAL Request

9Bad CAL

Target

11 No

Inguard Response

13 Lineari ty

CAL Error

14 Pacer

Overrun Error

The FIFO memory was still full at the time the new reading was ready, or a new command was received while in the middle of outputting a reading. TRIGGER ARM is disabled and the multimet er waits for a new command.

An error occurred when computing a calibration constant, probably due to an improper input or a defective Unit Under Test (UUT). Calibr at io n cy cl e aborted.

The non-volatile RA M co nt ai ns a che cksu m erro r. Th e da ta is assumed to be corrupt ed .

Calibration requested for an invalid combination of multimeter range and function.

The target value for the calibration was outside the range of ±(0.5 full scale to full scale).

No response from inguard (expected data and got nothing). Timed out instea d.

An error has occurred during a line ari ty cal ib ration sequence. Probably a hardware failure of the A/D inguard section.

The pacer is in use and the pacer rate is faster than the maximum A/D conv ers io n rat e ba se d on in t eg r at ion time, autorange setting, autozero setting, and interrupts enabled.

U/H

15 Input

Overload

* U = improper operation, H = hardware failure

A potentially damaging overload has been applied to the multimeter terminals and the multimeter has disconnected from the input. A new SET RANGE command is necessary to restore normal operation. A damaging overload is defined as:

1. Applying >±40 volts Hl to LO or Hl to COMMON while in manual range with RAN GE ≤ 8 vo lts.

2. Applying >±40 volts between LO and COMMON under any circumstances.

Chapter 5 Adjustments 47

Page 48

Notes

48 Adjustments Chapter 5

Page 49

Chapter 6

Replaceable Parts

Introduction This chapter co n ta in s in formation to or de r re pl ac ea bl e pa rt s fo r th e H P

E1411A and E1411B multimeters.

Exchange

Assemblies

Ordering

Information

Replaceable Parts List

Tables 6-1 and 6-2 list assemblies that may be replaced on an exchange basis (EXCHANGE ASSEMBLIES). Exchange, factory-repaired, and tested assemb lie s ar e av ai la ble only on a trade-in bas is . D ef ec tive assemblies mu st be re turned for cred it. Ass em b li es req ui re d fo r spare parts stock must be ordered by the new assembly part number. Contact your nearest Hewlett-Packard Sales and Support Office for details.

To order a part listed in Table 6-1 or 6-2, specify the Hewlett-Packard part number and the quantity required. Send the order to your nearest Hewlett-Packard Sales and Support Office.

Table 6-1, HP E1411A Replaceable Parts, lists replaceabl e pa rt s fo r th e H P E11411A multimeter. See Figure 6-1 (page 6-3) for locations of parts listed in Table 6-1. Table 6-2, HP E1411B Replaceable Parts, lists replaceable parts for the HP E11411B multimeter. See Figure 6-2 (page 6-5) for locations of parts listed in Table 6-2.

Chapter 6 Replaceable Parts 49

Page 50

Table 6-1. HP E1411A Replaceable Parts

Reference* Designator

A1 A1F1 A1F2 A1J2 A1J102 A1J103 A1JM1 A1JM3 A1K104 A1K105 A1K106 A1P1 A1P2 A1P3 A1SP1 A1XU23 A1XU104 A1XU124

CBL1 CBL2

MP1 MP2 MP3 MP4 MP5 MP6 MP7 MP8 PNL1 SHD1 SHD2

HP Part

Number

E1411-66201 E1411-69201

E1411-66501 2110-0712 2110-0712 1250-1846 1251-3712 1252-3416 1251-4927 1251-4927 0490-1556 0490-1556 0490-1555 1252-1596 1251-7892 1258-0247 3101-3066 1200-0817 1200-0817 1200-0853

E1326-61601 E1326-61605

E1400-84105 E1400-84106 1510-0091 1510-0091 1510-0091 1510-0091 8160-0686 1400-0249 E1411-00201 E1411-00602 E1411-00601

Qty Description Mfr**

Code

EXCHANGE ASSEMBLIES

E1411A Multimeter Module (New)

E1411A Multimeter Module (Exchange)

MULTIMETER PCA [a]

Fuse - Sub Miniature - 4A

Fuse - Sub Miniature - 4A Connector - Right Angle BNC

Connector - Post 2 x 6

Connector - 4 Pin Right Angle

Connector - Header 16 Pin

Connector - Header 16 Pin Relay - Reed

Relay - Reed Relay - Reed

Connector - Right Angle - 96 Pin

Connector - Right Angle - 64 Pin

4-Position Jumper

Switch - Rocker 8 Position 5 V 0.1 A

Socket - 40 Pin Integrated Circuit

Socket - 40 Pin Integrated Circuit Socket - 16 Pin Integrated Circuit

CABLE ASSEMBLIES

Cable Assembly - 6 Conductor

Cable Assembly - 4 Conductor

MECHANICAL PARTS

Handle Kit-Bottom

Handle Kit-Top Binding Post - Red

Binding Post - Red Binding Post - Red Binding Post - Red Clip-RFI Strip

Cable Tie - 0.062-0.625 IN DIA

Panel - Faceplate

Shield - Bottom

Shield - Top

28480 28480

28480 75915 75915 24931 18873 27264 18873 18873 71707 71707 71707 06776 18873 18873 81073 00779 00779 00779

28480 28480

28480 28480 28480 28480 28480 28480 30817 59730 28480 28480 28480

Mfr Part Number

E1411-66201 E1411-69201

E1411-66501 R251004T1 R251004T1 28JR342-1 68668-004 705-53-0108 67997-616 67997-616 3500-0050 3500-0050 3500-0051 DIN96CPCSRITR 75882-364 69146-204 76YY22968S 2-640379-1 2-640379-1 2-640358-1

E1326-61601 E1326-61605

E1400-84105 E1400-84106 1510-0091 1510-0091 1510-0091 1510-0091 00786-185 TY-23M-8 E1411-00201 E1411-00602 E1411-00601

COMMON HARDWARE

Screw Pan-Head M2.5 X 12 Torx T8

SCW1, SCW2 SCW3-SCW8, SCW15 SCW 9-SCW11 SCW12-SCW13 HDW1-HDW4 HDW5-HDW8

* See Table 6-3 for Reference Designator definitions ** See Table 6-4 for Code List of Manufacturers [a] Repair limited to replacement of parts listed - see Introduction for ordering information

0515-0368 0515-1135 0515-1375 0515-1968 2950-0001 3050-0593

Screw Pan-Head M3 X 25 Torx T8

Screw Flat-Head M2.5 X 6 Torx T8

Screw Pan-Head M2.5 X 11 Pozidriv

Nut-Hex-DBL Chamfer 3/8 - 32 THD

Washer-Spring NO. 3/8

00000 00000 00000 00000 00000 00000

Order by Description Order by Description Order by Description Order by Description Order by Description Order by Description

50 Replaceable Parts Chapter 6

Page 51

Figure 6-1. HP E1411A Replaceable Parts

Chapter 6 Replaceable Parts 51

Page 52

Table 6-2. HP E1411B Replaceable Parts

Reference* Designator

A1 A1F1 A1F2 A1J2 A1J102 A1J103 A1J301 A1JM1 A1JM3 A1K104 A1K105 A1K106 A1P1 A1P2 A1P3 A1SP1 A1XU23 A1XU104 A1XU124

CBL1 CBL2

HP Part

Number

E1411-66511*** E1411-69511***11

E1411-66511 2110-0712 2110-0712 1250-1846 1251-3712 1252-3416 1250-1846 1251-4927 1251-4927 0490-1556 0490-1556 0490-1555 1252-1596 1251-7892 1258-0247 3101-3066 1200-0817 1200-0817 1200-0853

E1326-61601 E1326-61605

Qty Description Mfr**

Code

EXCHANGE ASSEMBLIES

E1411B Multimeter Module (New) E1411B Multimeter Module (Exchange)

MULTIMETER PCA [a]

Fuse - Sub Miniature - 4A Fuse - Sub Miniature - 4A Connector - Right Angle BNC

Connector - Post 2 x 6

Connector - 4 Pin Right Angle

Connector - Right Angle BNC Connector - Header 16 Pin

Connector - Header 16 Pin Relay - Reed

Relay - Reed Relay - Reed

Connector - Right Angle - 96 Pin

Connector - Right Angle - 64 Pin

4-Position Jumper

Switch - Rocker 8 Position 5 V 0.1 A

Socket - 40 Pin Integrated Circuit

Socket - 40 Pin Integrated Circuit Socket - 16 Pin Integrated Circuit

CABLE ASSEMBLIES

Cable Assembly - 6 Conductor

Cable Assembly - 4 Conductor

28480 28480

28480 75915 75915 24931 18873 27264 24931 18873 18873 71707 71707 71707 06776 18873 18873 81073 00779 00779 00779

28480 28480

Mfr Part Number

E1411-66511 E1411-69511

E1411-66511 R251004T1 R251004T1 28JR342-1 68668-004 705-53-0108 28JR342-1 67997-616 67997-616 3500-0050 3500-0050 3500-0051 DIN96CPCSRITR 75882-364 69146-204 76YY22968S 2-640379-1 2-640379-1 2-640358-1

E1326-61601 E1326-61605

MECHANICAL PARTS

Handle Bottom Metal Injection

MP1 MP2 MP3 MP4 MP5 MP6 MP7 MP8 PNL1 SHD1 SHD2

SCW1-SCW2 SCW3-SCW8, SCW15 SCW11 HDW1-HDW4 HDW5-HDW8

* See Table 6-3 for Reference Designator definitions ** See Table 6-4 for Code List of Manufacturers *** PC Board Replacement only [a] Repair limited to replacement of parts listed - see Introduction for ordering information † These parts are not compatible with older versions of the E1411B that have plastic handles. To replace one of these parts on an older E1411B, you must order all four of the parts marked with a †

E1400-45102† E1400-45101† 1510-0091 1510-0091 1510-0091 1510-0091 8160-0686 1400-0249 E1411-00202† E1411-00612 E1411-00611

E1400-00610† 0515-1135 0515-1375 2950-0001 3050-0593

Handle Top Metal Injection

Binding Post - Red

Binding Post - Red Binding Post - Red Binding Post - Red Clip-RFI Strip

Cable Tie - 0.062-0.625 IN DIA

Panel - Faceplate

Shield - Bottom

Shield - Top

COMMON HARDWARE

Shoulder Screw Assembly

Screw Pan-Head M3 X 25 Torx T8

Screw Flat-Head M2.5 X 6 Torx T8

Nut-Hex-DBL Chamfer 3/8 - 32 THD

Washer-Spring NO. 3/8

and

a new top shield.

28480 28480 28480 28480 28480 28480 30817 59730 28480 28480 28480

28480 00000 00000 00000 00000

E1400-45102 E1400-45101 1510-0091 1510-0091 1510-0091 1510-0091 00786-185 TY-23M-8 E1411-00202 E1411-00602 E1411-00601

E1400-00610 Order by Description Order by Description Order by Description Order by Description

52 Replaceable Parts Chapter 6

Page 53

Figure 6-2. HP E1411B Replaceable Parts

Chapter 6 Replaceable Parts 53

Page 54

Table 6-3. HP E1411 Reference Designators

HP E1411 Reference Designators

A .......................................... assembly

CBL ............................................ cable

F ................................................... fuse

J ................ electrical connector (jack)

JM ........ electrical connector (header)

K ............ .. .. .. .............. .. .............. .. .re la y

MP .................. misc. mechanical part

P ............... electrical connector (plug)

PNL ............................................ panel

SHD ............ .. .. .. .............. .. ......... shield

SP ............ .. .. .. .............. .. ........... switc h

XU ............ .. . so ck et , in te gra t e d circu it

Table 6-4. HP E1411 Code List of Manufacturers

Mfr Code Manufacturer Name Address

00000 00779 06776 18873 24931 27264 28480 30817 59730 71707 75915 81073

Any satisfac tory supplier AMP INC Robinson Nugent Inc Dupont E I DE Nemours & Co Specialty Connector Co Molex Inc Hewlett Packard Company Instrument Specialties Co Inc Thomas & Betts Corp Coto Wabash Littelfuse Inc Grayhill Inc

Harrisburg, PA 17111 New Albany, IN 47150 Wilmington, DE 19801 Franklin, IN 46131 Lisle, IL 60532 Palo Alto, CA 94304 Del Water Gap, PA 07424 Raritan, NJ 08869 Providence, RI 02907 Des Plaines, IL 60016 La Grange, IL 6052 5

54 Replaceable Parts Chapter 6

Page 55

Chapter 7

Manual Changes

Introduction This chapter co n ta in s in formation to ad ap t this manual to in st ru m en ts for

which the content does not directly apply. Since this manual applies directly to instruments with serial numbers listed on the title page, change information is not required. See Multimeter Serial Number s in Chapter 1 - General Information for HP E1411 multimeter serial number information.

Chapter 7 Manual Changes 55

Page 56

56 Manual Changes Chapter 7

Page 57

Chapter 8

Service

Introduction This chapter contains information to service the HP E1411 multimeter

including troubleshooting guidelines and repair/maintenance guidelines.

WARNING

Equipment

Required

Do not perform any of the service procedures shown unless you are a qualified, service-trained person, and have read the WARNINGS and CAUTIONS in

Equipment required for multimeter troubleshooting and repair is listed in Table 1-1, Recommended Test Equipment. Any equipment that satisfies the Requirements in the table may be substituted. To avoid damage to the screw head slots, use Pozi dr iv or Tor x dr iv er s as spe ci fied in the instructions. Pozidriv and Torx drivers used are listed in Table 8-1.

Table 8-1. Pozidriv/Torx Drivers

Description HP Part Number

No. 1 Pozidr iv No. 2 Pozidr iv

Size T-8 Torx Size T-10 Torx Size T-15 Torx

8710-0899 8710-0900

8710-1673 8710-1284 8710-1816

Chapter 1 - General Information

Service Aids There are no test po in ts o r man ua l ad justment locati on s fo r th e H P E1411

multimeter. Service aids on printed circuit boards include pin numbers, some reference designations, and assembly part numbers. See Chapter 6 - Replaceable Parts for descriptions and location of HP E1411 replaceable parts.

Service notes, manual updates, and service literature for the HP E1411 multimete r ma y be av ai la bl e th rough Hewlett- Pa c ka rd . F or inf or m at io n, contact your nearest Hewlett-Packard Sales and Support Office.

Chapter 8 Service 57

Page 58

Troubleshooting Techniques

There are two main steps to troubleshoot an HP E1411 multimeter problem: (1) identify the problem, and (2) test assemblies to isolate the cause to a user-replaceable component.

Identifying the

Problem

Error Description Typical Causes

Multimeter problems can be divided into four general categories:

• Self-test errors

• Operator errors

• Catastrophic failures

• Performance out of specification

Self-Test Errors

An error number (1, 2, 3, or 4) is returned when the multimeter self-test fails. If a self-test error occurs, recycle power and repeat the self-test. If the error repeats, see "Testing Assemblies" to troubleshoot the multimeter. Table 8-2 shows some typical causes of self-test errors.

Table 8-2. Self-Test Errors

Multimeter does not respond to self-test

Invalid communication between A1 and A2 processors

Data line betwee n mu ltimeter and mainframe failed

. Bad connections/settings . Incorrect operation . Hardware failure (exchange)

. Bad A1/A2 communication . Hardware failure (exchange)

. Bad connections/settings . Incorrect operation . Hardware failure (exchange)

Invalid commun ic ation between multimeter and mainframe

. Bad connections/settings . Incorrect operation . Hardware failure (exchange)

Operator Errors

Apparent failures may result from operator errors. See App endix B - Error Messages in the HP E1326A/E1411A User’s Manual or the

E1326B/E1411B User’s Manual for information on operator errors.

Catastrophic Failure

If a catastrophic failure occurs, see "Testing Assemblies" to troubleshoot the multimeter.

58 Service Chapter 8

Page 59

Performance Out of Specification

If the multimeter performance is out of specification limits, use the adjustment procedures in Chapter 5 - Adjustments to correct the problem. If the condition repeats, see "Testing Assemblies" to troubleshoot the multimeter.

Testing Assemblies You can use the tests and checks in Table 8-3 to isolate the problem to a

user-replaceable part on the multimeter frame or PCA. See Figure 6-1 (HP E1411A) or Figure 6-2 (HP E1411B) in Chapter 6 - Replaceable Parts for locations of us er -r ep la ce ab le p ar ts .

NOTE

If the problem cannot be traced to a user-replaceable part listed in Table 6-1 or Table 6-2, return the multimeter to Hewlett-Packard for exchange. See Chapter 6 - Replaceable Parts for procedures.

Table 8-3. HP E1411 Tests/Checks

Test/Check Reference Desig na tor Check:

Heat Damage - - - - - - - - - - Discolored PC boards

Damaged insulation Evidence of arcing

Switch/Jumper Settings

Frame CBL1, CBL2

A1 Printed Circuit Assembly

JM1, JM3, P3 SP1

MP3, MP4, MP5 , MP 6

F1, F2 J2, J102, J103, J3 01 K104, K105, K106 P1,P2 XU23, XU104, XU124

IRQ Level sett in g LADDR setting

Cable contact damage Panel bindin g posts

Fuse continuity Mating connector contacts Relay opening/closure Connector contacts IC contact/connections

Checking Heat Damage

Inspect the multimeter for signs of abnormal internally generated heat such as discolored printed circuit boards or components, damaged insulation, or evidence of arcing. If there is damage, do not operate the multimeter until you correct the problem.

Chapter 8 Service 59

Page 60

Checking Switches/Jumpers

Verify the logical address setting is set correctly (factory set at 24). Verify the interrupt priority jumpers are set correctly (factory set at level 1). See the HP E1326A/E1411A User’s Manual or the E1326B/E1411B User’s Manual for information.

Testing Multimeter Frame

To test the multimeter frame, see Table 8-3 for guidelines to check binding posts MP3, MP4, MP5, and MP6, and cables CBL1 and CBL2. If you need to remove and/or replace the binding posts, see "Removing Binding Posts" in this chapter.

Testing Printed Circuit Assembly

To test the PCA, remove mainframe power and remove the multimeter from the mainframe. Next, remove the Top Shield (see "Removing Top Shield" for instructions). Then, see Table 8-3 for guidelines to isolate the problem to a user-replaceable part.

Repair

This section gives guidelines to repair the HP E1411 multimeter, including:

Guidelines

• ESD precautions

• Removing top shield

• Removing front panel/bottom shield

• Removing binding posts

• Soldering printed circuit boards

• Post-repair safety checks

ESD Precautions Electrostatic discha rg e (ESD) may da m ag e M OS, CM OS and oth er

static-sensitive devices in the HP E1411 multimeter. This damage can range from slight parameter degradation to catastrophic failure. When handling multimeter assemblies, follow these guidelines to avoid damaging multimeter components:

• Always use a static-free work station with a pad of conductive

rubber or similar material when handling multimeter components.

• After you remove an assembly from the multimeter, place the

assembly on a conductive surface to guard against ESD damage. Do not stack assemblies.

60 Service Chapter 8

Page 61

• Do not use pliers to remove a MOS or CMOS device from a

high-grip socket. Instead, use a small screwdriver to pry the device up from one end. Slowly lift the device up, one pair of pins at a time.

• After you remove a MOS or CMOS device from an assembly, place

the device onto a pad of conductive foam or other suitable holding material.

• If a device requires soldering, be sure the assembly is placed on a

pad of conductive material. Also, be sure you, the pad, and the soldering iron tip are grounded to the assembly. Apply as little heat as possible when soldering.

Removing Top

Shield

Use the following steps to remove the top shield from the printed circuit assembly (PCA). See Figure 8-1 for component locations.

1. Remove seven Torx T8 screws

2. Lift top shield from the back until front slots can be

disengaged from tabs.

3. Remove the top shield .

4. Reverse steps 1 through 3 to replace top shield.

Figure 8-1. Removing Top Shield

Chapter 8 Service 61

Page 62

NOTE

When reinstalling the top shield, verify that the slots are aligned with the tabs, then se t th e top shield into pl ac e.

Removing Front

Panel

Use the follow i ng ste p s to re m ov e the front panel an d bo tt om sh ie ld from the printed circuit assembly (PCA). See Figure 8-2 for component locations.

1. Remove Torx T8 screw from front panel

2. Remove two Torx T8 screws from PCA

3. Remove cable assembly fr om cl ip

4. Slide PCA off bottom shield

5. Reverse steps 1 through 4 to rep la ce fro nt pan el and

bottom shield

Figure 8-2. Removing Front Panel

62 Service Chapter 8

Page 63

Removing Binding

Posts

Use the following steps to remove the HP E1411 front panel binding posts (MP3, MP4, MP5, and MP6) (see Figure 8-3).

1. Unsolder wire

2. Remove the 3/8-32 nut and spring washer

3. Remove the binding post

4. Reverse the order to reinstall the binding posts

Figure 8-3. Removing Binding Posts

Soldering Printed

Circuit Boards

CAUTION

The etched circuit boards in the multimeter have plated-through holes that allow a solder path to both sides of the insulating material. Soldering can be done from either side of the board with equally good results. When soldering to any circuit board, keep in mind the following guidelines:

Do not use a sharp metal object such as an awl or twist drill, since sharp objects may damage the plated-through conductor.

Chapter 8 Service 63

Page 64

• Avoid unnecessary component unsoldering and soldering. Excessive

replacement can result in damage to the circuit board and/or adjacent components.

• Do not use a high power solder in g ir on on etched circuit board s as

excessive heat may lift a conductor or damage the board.

• Use a suction device or wooden toothpick to remove solder from

component mounting holes. When using a suction device, be sure the equipment is properly grounded to prevent electrostatic discharge from damaging CMOS devices.

Post-Repair Safety

Checks

After making repairs to the HP E1411 multimeter, inspect the multimeter for any signs of abnormal internally generated heat, such as discolored printed circuit boards or components, damaged insulation, or evidence of arcing. Determine and correct the cause of the condition. Then run the self-test (*TST? command) to verify that the multimeter is functional.

64 Service Chapter 8

Page 65

Appendix A

Calculating Multimeter Accuracy

Introduction This appendix shows how multimeter accuracy, measurement uncertainty,

and test accuracy ratio (TAR) values are defined and calculated for the performance verification tests for the HP E1411 multimeter.

See Table 4-1, "Performance Tes t Recor d fo r th e H P E141 1 M ul tim eter " for 90-day spec if ic atio n va lues of multimeter acc ur ac y, me as ur em e nt uncertainty, and test accuracy ratios (TARs).

NOTE

Multimeter Accuracy

Definition

Measurement

Uncertainty Definition

NOTE

Multimeter accuracy, measurement uncertainty, and test accuracy ratios in Table 4-1 are valid ONLY for the specified test conditions and assumptions described in this manual. For the test conditions describ ed, all TARs ex ceed the 4:1 requirement of MIL-STD-45662A.

Multimeter accuracy is the expected accuracy of the measurement due ONLY to the multimeter. The "Low Limit" entry in Table 4-1 is the lower (-) value of multimeter accuracy, while the "High Limit" entry is the upper (+) value of multimeter accuracy.

Measurement Uncertainty is the expec te d ac cu ra cy o f th e so ur ce use d to input signals to the multimeter. Since the Datron 4708 Autocal Multifunction Standard is the source used for measurements in this manual, the measurement uncertainty of the source is that of the Datron 4708.

This value is shown in the "Measurement Uncertainty" column of Table 4-1. See the Datron 4708 User’s Handbook for additional information on calculating measurement uncertainty for the Datron 4708 source.

Measurement Uncertainty does not apply to the DC Voltage (Zero Volts Input) test, since no input is applied.

Appendix A Calculating Multimeter Accuracy 65

Page 66

Test Accuracy Ratio

(TAR) Definition

Test Accuracy Ratio (TAR) is the ratio of multimeter accuracy to measurement uncertainty. For the HP E1411 multimeter performance tests, test accuracy ratio = (High Limit value - Test Input value)/Measurement Uncertainty va lu e. Th is valu e is sh own in th e " T es t Acc ur ac y R at io (TAR )" column of Table 4-1.

NOTE

Multimeter Accuracy Calculations

DC Voltage

Accuracy Equations

Test accuracy ratio does not apply to the DC Voltage (Zero Volts Input) test, since no measurement uncertainty value applies.

For the HP E1411 multimeter performance verification tests, multimeter accuracy is defined for DC Voltage, AC Voltage, and 4-Wire Resistance measurements using the 90-day specifications in Appendix A -

Specifications of the HP E1326A/E1411A User’s Manual or the E1326B/E1411B User’s Manual. The assumed test conditions are:

• 90 days since calibration

• Temperature within ± 5

• Module calibration temperature 18

• One hour warmup

• 4-wire ohms resistance measurements

• Aperture = 16.7 msec (60 Hz) or 20 msec (50 Hz)

• Autozero ON

C of calibration temperature

C to 28oC

From Appendix A - Specifications of the HP E1326A/E1411A User’s Manual or the E1326B/E1411B User’s Manual, DC voltage 90-day

accuracy = ±(% of reading + volts). The accuracy equations for the ranges and apertures used in the performance verification tests are:

Range

125 mV

1 V 8 V

64 V

300 V

Accuracy [±(% of reading + Volts)]

0.023 + 5.0 µV

0.013 + 15.0 µV

0.010 + 50.0 µV

0.015 + 1.0 mV

0.015 + 5.0 mV

Example: Calculate DC Voltage Accuracy

For a 7.0 DCV input to the multimeter, using the 8 V range and 16.7/20 msec aperture, multimeter accuracy (90-days) = ±(.010% reading + 50.0 µV) = ±(.0001 x 7.0 + 50 x 10

-6

) = ±0.00075 Volts. Thus, for a 7.0 DCV

input the High Limit in Table 4-1 = 7.00075 Volts and the Low Limit =

6.99925 Volts.

66 Calculating Multimeter Accuracy Appendix A

Page 67

AC Voltage

Accuracy Equations

From Appendix A- Sp ec if ic ations of the HP E1326A /E1411A or E1326B /E1411B User’s Manual, AC voltage 90-day accuracy = ±(% of reading + volts). The accuracy equations for the ranges, frequencies and apertures

used in the performance verification tests are:

4-Wire Ohms

Accuracy Equations

Range Frequency

87.5 mV

87.5 mV 300 V

20 Hz 60 Hz 5 kHz 10 kHz 5 kHz

Accuracy [±(% of reading + Volts)]

2.175 + 1 mV

0.675 + 200 µV

3.175 + 200 µV

1.125 + 500 mV

Example: Calculate AC Voltage Accuracy

For a 0.07 ACV input to the multimeter, using the 87.5 mV range, 60 Hz frequency, and 16.7/20 msec aperture, multimeter accuracy (90-days) =

±(0.675% re ad ing + 200 µV) = ±(.00675 x 0.07 + 200 x 10

-6

) = ±0.000673

Volts. Thus, for a 0.07 ACV input the High Limit in Table 4-1 = 0.070673 Volts and the Low Limit = 0.069327 Volts.

From Appendix A- Sp ec if ic ations of the HP E1326A /E1411A or E1326B /E1411B User’s Manual, 4-Wire resistance 90-day accuracy = ±(% of reading + Ohms). The accuracy equations for the ranges and apertures used

in the performance verification te sts ar e:

Range

Accuracy [±(% of reading + Ohms)]

2 kΩ 131 kΩ 1 MΩ

0.025 + 20 mΩ

0.025 + 1 Ω

0.025 + 10 Ω

Example: Calc ul ate 4-Wire Resistance Ac curacy

For a 1 kΩ input to the multimeter, us i ng th e 2 k Ω range and 16.7/20 msec aperture, multimeter accuracy (90-days) = ±(.025% reading

-3

+ 20 mΩ) = ±(.00025 x 1000 + 20 x 10

) = ±0.270 Ω. Thus, for a 1 kΩ input the High Limit in Table 4-1 = 1000.27 Ω and the Low Limit = 999.73 Ω.

Appendix A Calculating Multimeter Accuracy 67

Page 68

Measurement Uncertainty Calculations

Measurement uncertainties for the Datron 4708 source are calculated using the 90-day accuracy specifications in the Datron 4708 User’s Handbook:

Measurement Uncertainty = Datron Accuracy + Calibration Uncertainty, where Datro n A cc ur ac y (p pm ) = Ac cu ra cy Rel at iv e to Ca li br ation

Standards = ±(ppm OUTPUT + ppm FS)

and FS = 2 x range for all ranges except 1000V FS = 1100 for the 1000V range

The assumed test conditions are:

• Temperature of 23

• 90 days since calibration

• 4-wire sense function for ohms measurements

C±1

Calculate DCV

Measurement

Uncertainty

From Section 6 - Sp ec ific at io ns of the Datron 4708 User’s Handbook, DC

oC ±1o

Voltage (Op tion 1 0) Accu ra cy (90 days since ca libr at io n and 23 follows, where Datron Accuracy = ±(ppm OUTPUT + ppm FS).

Datron

OUTPUT

(DCV)

0.1

0.9

7.0

58.0

300.0

Datron

Range (Volts)

1.0000000V

10.000000V

100.00000V

1000.0000V

Datron

Accuracy

(ppm)

2 + 0.4 2 + 0.4 1 + 0.15 2 + 0.25 3 + 0.25

Calibration Uncertainty

2 2

1.5 2 2

(ppm)

Example: Calculate DC Voltage Measurement Uncertainty

Since Measurement Uncertainty = Datron Accuracy + Calibration Uncertainty, for a 7.0 DCV OUTPUT and the Datron 4708 range set to

10.000000 V, Measurement Uncertainty (µV)=±[(1.0 x 7.0) + (2 x 0.15 x

10)] + (1.5 x 7.0)] = ±20.5 µV = ±0.000021 V.

Or, with a 300 DCV OUTPUT and the 1000.0000V range, Measurement Uncertainty (µV) = ±[(3.0 x 300) + (0.25 x 1100) + (2.0 x 300)] = ± 1775 µV = ±0.001775 V.

68 Calculating Multimeter Accuracy Appendix A

Page 69

Calculate ACV

Measurement

Uncertainty

From Section 6 - Sp ec if ic at io ns of the Datron 4708 User’s Handbook , AC

oC ±1o

Voltage (Op tion 2 0) Accu ra cy (90 days since ca libr at io n an d 23

where Datron Accuracy = ±(ppm OUTPUT + ppm FS).

Datron Output

(ACV)

0.07

300.0

Datron

Range

100 mV 100 mV 100 mV 100 mV 1000 V

Datron

Freq

20 Hz 60 Hz 5 kHz 10 kHz 5 kHz

Datron

Accuracy

(ppm)

110 + 20 + 5 µV 60 + 20 + 5 µV 50 + 20 + 5 µV 50 + 20 + 5 µV 90 + 10

Calibration

Uncertainty

30 + 1 µV 30 + 1 µV 30 + 1 µV 30 + 1 µV 30

Example: Calculate AC Voltage Measurement Uncertainty

Since Measurement Uncertainty = Datron Accuracy + Calibration Uncertainty, for a 0.07 ACV OUTPUT to the multimeter and the Datron 4708 range set to 100 mV at 60 Hz, Measurement Uncertainty

(µV)=±[(60.0 x 0.07) + (2 x 20 x .1) + 5 + (30 x .07 +1)] = ±16.3 µV = ±0.000016 V.

Or, for a 300 ACV OUTPUT to the multimeter and the Datron 4708 range set to 1000 V at 5 kHz, Measurement Uncertainty (µV) = ±[(90.0 x 300.0) + (10 x 1100) + (30 x 300)] = ± 47000 µV = ±0.047 V.

(ppm)

Calculate

Resistance

Measurement

Uncertainty

From Section 6 - Specifications of the Datron 4708 User’s Handbook, 4-Wire Resistance (Option 30) Accuracy (90 days since calibration and

C ±1o C) follows, where Datron Accuracy =±(ppm OUTPUT + ppm

23 FS).

Datron

Output

1 k Ω 100 k Ω 1 M Ω

Datron

Range

(Ohms)

1.0000000k

100.00000k

1.0000000M

Datron

Accuracy

(ppm)

3 3 10

Calibration

Uncertainty

(ppm)

5 6 12

Example: Calculate 4-Wire Ohms Measurement Uncertainty

For the 100 kΩ range, measurement uncertainty = [(3 x 10 + (6 x 10

-6 x 105

)] Ω = (0.3 + 0.6) Ω = 0. 90 0 Ω .

-6

x 10 5)

Appendix A Calculating Multimeter Accuracy 69

Page 70

Test Accuracy Ratio (TAR) Calculations

For the HP E1411 multimeter, Test Accuracy Ratio (TAR) = [High Limit

- Input Value]/Measurement Uncertainty where the source input value is in DCV, ACV, or Ohms.

Example: Calc ul ate DCV Test Accuracy Rati o

For a 7.0 DCV measurement if the High Limit value = 7.000750 DCV and the Measurement Uncertainty = .0000115 DCV, Test Accuracy Ratio (TAR) = (7.000750 V - 7.0000000 V)/.0000115 V = 65:1 (rounded to the nearest integer value). Since this value is >10:1, the entry in Table 4-1 is ">10:1".

70 Calculating Multimeter Accuracy Appendix A

Page 71

Appendix B

Verification Tests - C Programs

Functional

This program is designed to do the Functional Verification Test found in Chapter 4 - Verification Tests.

Verification Test

Example:Self Test This example performs a multimeter self-test to ensure that the multimeter

is communicating with the mainframe, external controller, and/or external terminal.

#include <stdio.h> #include <sicl.h>

#define ADDR "hpib7,9,03" /* Address of device */ void main ()

{ INST id; /* Define id as an instrument */ char a[256] = {0}; /* Result variable */

id = iopen (ADDR); /* Open instrument session */ ipromptf(id, "*TST?\n", "%t", a); /* Self test command */ printf("\n %s", a); /* Print result */ getchar(); /* Pause */ iclose (id); /* Close instrument session */

}

Appendix B Verification Tests - C Programs 71

Page 72

Performance Verification Tests

These programs are designed to do the Performance Verification Tests found in Chapter 4 - Verification Tests.

Example: Zero Volt

DCV Test

This example performs a DCV test for zero volts input and a power line reference frequency of 60 Hz.

/* Zero Volt DCV Test E1411A/B */ #include <stdio.h>

#include <sicl.h> #define ADDR "hpib7,9,03" /* Address of HP E1326B */ void main (void)

{ INST id; /* Define id as an instrument */ char volt[256] = {0}; /* Result variable */

#if defined(__BORLANDC__) && !defined(__WIN32__) _InitEasyWin(); #endif

ionerror(I_ERROR_EXIT); id = iopen (ADDR); /* Open instrument session */ iprintf (id, "*RST\n"); /* Resets and set autozero

ON and PLC to 1 */ iprintf (id, "CAL:LFR 60\n"); /* Sets line reference to 60 Hz */

ipromptf (id, "MEAS:VOLT:DC? .1\n", "%t", volt); /* Measure 0.113 V range */ printf ("Voltage for 0.113 V range = %s\n", volt);

ipromptf (id, "MEAS:VOLT:DC? .9\n", "%t", volt); /* Measure 0.91 V range */ printf ("Voltage for 0.91 V range = %s\n", volt);

ipromptf (id, "MEAS:VOLT:DC? 7\n", "%t", volt); /* Measure 7.27 V range */ printf ("Voltage for 7.27 V range = %s\n", volt);

ipromptf (id, "MEAS:VOLT:DC? 58\n", "%t", volt); /* Measure 58.1 V range */ printf ("Voltage for 58.1 V range = %s\n", volt);

ipromptf (id, "MEAS:VOLT:DC? 300\n", "%t", volt); /* Measure 300 V range */ printf ("Voltage for 300 V range = %s\n", volt);

iclose (id); /* Close instrument session */ }

72 Verification Tests - C Programs Appendix B

Page 73

Example: DC

Voltage Test

This test performs a DC Voltage test for positive input DC volts and a power line reference frequency of 60 Hz.

/* DC Voltage Test (DCV Input) E1411A/B */ #include <stdio.h>

#include <sicl.h> #define ADDR "hpib7,9,03" /* Address of HP E1326B */ void main ()

{ INST id; /* Define id as an instrument */ float range[5] = {0.113, 0.910, 7.270, 58.10, 300.0}; float volts[5] = {0.1, 0.9, 7.0, 58.0, 300.0}; char measurement[5][256], complete[256]; /* Result variable */ int i;

#if defined(__BORLANDC__) && !defined(__WIN32__) _InitEasyWin(); #endif

ionerror(I_ERROR_EXIT); /* Exit on error */ id = iopen (ADDR); /* Open instrument session */ iprintf (id, "*RST\n"); /* Resets and set autozero

ON and PLC to 1 */ iprintf (id, "CAL:LFR 60\n"); /* Sets line reference to 60 Hz */

for(i = 0; i < 5; i++) /* Take voltage measurements */ { printf("\n Set DC Standard to %.1f VDC", volts[i]); printf("\n press ENTER when ready\n"); getchar (); iprintf(id, "CONF:VOLT:DC %f\n", range[i]); /* Voltage range */ ipromptf(id, "*OPC?\n", "%s", complete); /* Wait for settling */ ipromptf(id, "READ?\n", "%t", measurement[i]); /* Read voltage */ }

for (i=0; i < 5; i++) /* Print voltage measurements */ printf("\n Voltage on %4f V range = %s ", range[i], measurement[i]);

iclose (id); /* Close instrument session */ }

Appendix B Verification Tests - C Programs 73

Page 74

Example: AC

Voltage Test

This example performs an AC voltage test for a power line reference frequency of 60 Hz.

/* AC Voltage Test E1411A/B */ #include <stdio.h>

#include <sicl.h> #define ADDR "hpib7,9,03" /* Address of HP E1326B */ void main ()

{ INST id; /* Define id as an instrument */ float source_volts[5] = {0.07, 0.07, 0.07, 0.07, 300.0}; float source_freq[5] = {20, 60, 5000, 10000, 5000}; char measurement[5][256], complete[256]; /* Result variable */ int i;

#if defined(__BORLANDC__) && !defined(__WIN32__) _InitEasyWin(); #endif

ionerror(I_ERROR_EXIT); /* Exit on error */ id = iopen (ADDR); /* Open instrument session */ iprintf (id, "*RST\n"); /* Resets and set autozero

ON and PLC to 1 */ iprintf (id, "CAL:LFR 60\n"); /* Sets line reference to 60 Hz */

for(i = 0; i < 5; i++) /* Take voltage measurements */ { printf("\n 1. Set AC Standard output to %.2f VAC", source_volts[i]); printf("\n 2. Set AC Standard frequency to %.1f Hz",source_freq[i]); printf("\n 3. Press ENTER when ready\n"); getchar ();

iprintf(id, "CONF:VOLT:AC %f\n", source_volts[i]); /* Set voltage range */ ipromptf(id, "*OPC?\n", "%s", complete); ipromptf(id, "READ?\n", "%t", measurement[i]); /* Read voltage */ }

for (i=0; i < 5; i++) /* Print voltage measurements */ printf("\n Voltage for %4f V range at %.1f Hz = %s ", source_volts[i], source_freq[i], measurement[i]);

iclose (id); /* Close instrument session */ }

74 Verification Tests - C Programs Appendix B

Page 75

Example:

Resistance Test

This example perf or ms a 4- wir e oh ms re si stance test. The program also calculates the Upper and Lower Limit values for the ACTUAL resistance values. Use these values in Table 4-1 if they differ from the given values.

/* Resistance Test (4-wire Ohms) E1411A/B */ #include <sdtio.h>

#include <sicl.h> #define ADDR "hpib7,9,03" /* Address of HP E1326B */ void main ()

{ INST id; /* Define id as an instrument */ float range[3] = {1861, 119156, 1048576}; float source[3] = {1000, 100000, 1000000}; char measurement[3][256], complete[256]; float limit[3], actual[3]; int i;

#if defined(__BORLANDC__) && !defined(__WIN32__) _InitEasyWin(); #endif

ionerror(I_ERROR_EXIT); /* Exit on error */ id = iopen (ADDR); /* Open instrument session */ iprintf (id, "*RST\n"); /* Resets and set autozero

ON and PLC to 1 */ iprintf (id, "CAL:LFR 60\n"); /* Sets line reference to 60 Hz */

for(i = 0; i < 3; i++) /* Take measurements */ { printf("\n 1. Set Resistance Standard to %.1f Ohms", source[i]); printf("\n 2. Measure ACTUAL resistance standard value (in Ohms)"); printf("\n 3. Enter ACTUAL resistance standard (in Ohms): "); scanf("%f", &actual[i]);

iprintf(id, "CONF:FRES %f\n", range[i]); /* Set resistance range */ ipromptf(id, "*OPC?\n", "%s", complete); /* Wait for settling */ ipromptf(id, "READ?\n", "%t", measurement[i]); /* Read resistance */

if (i == 0) limit[i] = .00025*actual[i] + 0.02; /* 2kOhm limits */ if (i == 1) limit[i] = .00025*actual[i] + 1.0; /* 131 kOhm limits */ if (i == 2) limit[i] = .00025*actual[i] + 10; /* 1 MOhm limits */ }

printf("\nMeasured Source Low Limit High Limit"); printf("\nResistance Resistance (Ohms) (Ohms)\n");

for (i=0; i < 3; i++) /* Print measurements and limits */ printf("\n%s %10.2f %10.2f %10.2f", measurement[i],actual[i], actual[i]-limit[i], actual[i]+limit[i]);

iclose (id); /* Close instrument session */ }

Appendix B Verification Tests - C Programs 75

Page 76

Adjustments These programs are designed to do the adjustments found in Ch ap te r 5 -

Adjustments.

DC Voltage

Adjustments

This example performs DC Voltage adjustments for a power line reference frequency of 60 Hz. If no calibration error occurs, the program displays an "adjustment complete" message. If a calibration error occurs, the program displays the calibration error and prompts you to repeat the adjustment (see Table 5-1 for a list of calibration errors).

/* DC Voltage Adjustments E1411A/B */ #include <stdio.h>

#include <sicl.h> #define ADDR "hpib7,9,03" /* Address of device */ void main ()

{ INST id; /* Define id as an instrument */ float range[10] = {8.0, 8.0, 0.125, 0.125, 1.0, 1.0, 64.0, 64.0,

300.0, 300.0}; float volts[10] = {7.7, -7.7, .121, -.121, .97, -.97, 62.0, -62.0,

300.0, -300.0}; char cal_code[5][256]; int i; #if defined(__BORLANDC__) && !defined(__WIN32__) _InitEasyWin(); #endif ionerror(I_ERROR_EXIT); /* Exit on error */ id = iopen (ADDR); /* Open instrument session */ iprintf (id, "*RST\n"); /* Resets and set autozero ON and PLC to 1 */ iprintf (id, "CAL:LFR 60\n"); /* Sets line reference to 60 Hz */ for(i = 0; i 10; i++) /* Take voltage measurements */ { retry: printf("\n Set DC Standard to %.1f VDC", volts[i]); printf("\n press ENTER when ready\n"); getchar (); iprintf(id, "FUNC:VOLT:DC\n"); /* Set DCV function */ iprintf(id, "VOLT:RANG %f\n", range[i]); /* Set E1326B range */ iprintf(id, "CAL:VAL %f\n", volts[i]); /* Set CAL:VAL value */ iprintf(id, "TRIG:DEL .05\n"); /* Wait for settling */ ipromptf(id, "CAL?\n", "%t", cal_code[i]); /* Read voltage */

if (cal_code != 0) { printf ("\nCalibration Error %s for %f Vdc input", cal_code, volts[i]); printf ("\nCheck source value/connections, then"); printf ("\npress ENTER to retry this adjustment"); getchar (); goto retry; } else printf ("\nAdjustment complete for %f Vdc input", volts[i]); } iclose (id); /* Close instrument session */ }

76 Verification Tests - C Programs Appendix B

Page 77

AC Voltage

Adjustments

This example performs an AC Voltage adjustment for a power line reference frequency of 60 Hz and an input of 5.6 Vac at 1 kHz. If no calibration error occurs, the program displays an "adjustment complete" message. If a calibration error occurs, the program displays the calibration error and prom pt s yo u to rep ea t th e ad ju st m en t (s ee Table 5- 1 fo r a li st of calibration errors).

/* AC Voltage Adjustments E1411A/B */ #include <sdtio.h>

#include <sicl.h> #define ADDR "hpib7,9,03" /* Address of device */ void main ()

{ INST id; /* Define id as an instrument */ char cal_code[256];

#if defined(__BORLANDC__) && !defined(__WIN32__) _InitEasyWin(); #endif

ionerror(I_ERROR_EXIT); /* Exit on error */ id = iopen (ADDR); /* Open instrument session */ iprintf (id, "*RST\n"); /* Resets and set autozero

ON and PLC to 1 */ printf (id, "CAL:LFR 60\n"); /* Sets line reference to 60 Hz */

retry: printf("\n Set AC Standard to 5.6 Vac at 1.0 kHz"); printf("\n press ENTER when ready\n"); getchar (); iprintf(id, "FUNC:VOLT:AC\n"); /* Set DCV function */ iprintf(id, "VOLT:RANG 5.6\n"); /* Set E1326B range */ iprintf(id, "CAL:VAL 5.6\n"); /* Set CAL:VAL value */ iprintf(id, "TRIG:DEL .05\n"); /* Wait for settling */ ipromptf(id, "CAL?\n", "%t", cal_code[i]); /* Read voltage */

if (cal_code != 0) { printf ("\nCalibration Error %s on 5.6 Vac range", cal_code); printf ("\nCheck source value/connections, then"); printf ("\npress ENTER to retry this adjustment"); getchar (); goto retry; } else printf ("\nAdjustment complete for %f Vdc input", volts[i]);

iclose (id); /* Close instrument session */ }

Appendix B Verification Tests - C Programs 77

Page 78

Resistance

Adjustments

This example performs a 4-wire ohms resistance adjustment for a power line reference frequency of 60 Hz. If a calibration error occurs, the program displays the calibration error and prompts you to repeat the adjustment (see Table 5-1 for a list of calibration errors).

/* 4-wire Resistance Adjustments E1411A/B */ #include <stdio.h>

#include <sicl.h> #define ADDR "hpib7,9,03" /* Address of device */ void main ()

{ INST id; /* Define id as an instrument */ float range[3] = {2000, 16000, 1048576}; float source[3] = {1000, 10000, 1000000}; char cal_code[5][256]; float actual[3]; int i;

#if defined(__BORLANDC__) && !defined(__WIN32__) _InitEasyWin(); #endif

ionerror(I_ERROR_EXIT); /* Exit on error */ id = iopen (ADDR); /* Open instrument session */ iprintf (id, "*RST\n"); /* Resets and set autozero

ON and PLC to 1 */ iprintf (id, "CAL:LFR 60\n"); /* Sets line reference to 60 Hz */

for(i = 0; i 3; i++) /* Take voltage measurements */ { retry: printf("\n Set Resistance Standard to %.1f Ohms", source[i]); printf("\n Measure ACTUAL Resistance Standard value (in Ohms):"); scanf ("%f", &actual[i]);

iprintf(id, "FUNC:FRES\n"); /* Set DCV function */ iprintf(id, "FRES:RANG %f\n", range[i]); /* Set E1326B range */ iprintf(id, "CAL:VAL %f\n", actual[i]); /* Set CAL:VAL value */ ipromptf(id, "CAL?\n", "%t", cal_code[i]); /* Read voltage */

if (cal_code != 0) { printf ("\nCalibration Error %s for %f Ohms", cal_code, source[i]); printf ("\nCheck source value/connections, then"); printf ("\npress ENTER to retry this adjustment"); getchar (); goto retry; } else printf ("\nAdjustment complete with %f Ohms source\n", source[i]);

} iclose (id); /* Close instrument session */

}

78 Verification Tests - C Programs Appendix B

HP E1411A, E1411B Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual