Keysight E1418A Series, E1418A, E1418A Option 003, E1418A Option 001, E1418A Option002 Service Manual

75000 Series C

Service Manual

Keysight E1418A
8/16 Channel D/A Converter

Notices

© Keysight Technologies, Inc. 1996-2019

No part of this manual may be repro­duced in any form or by any means
(including electronic storage and retrieval
or translation into a foreign language)
without prior agreement and written con­sent from Keysight Technologies, Inc. as
governed by United States and interna­tional copyright laws.

Manual Part Number

E1418-90010

Edition

Second Edition, October 2019

Published by

Keysight Technologies, Inc.
900 S. Taft Ave.
Loveland, CO 80537 USA

Sales and Technical Support

To contact Keysight for sales and techni­cal support, refer to the support links on
the following Keysight websites:

www.keysight.com/find/E1418A

(product-specific information and sup­port, software and documentation
updates)

www.keysight.com/find/assist (world-

wide contact information for repair and
service)

Declaration of Conformity

Declarations of Conformity for this prod­uct and for other Keysight products may
be downloaded from the Web. Go to

http://keysight.com/go/conformity and

click on “Declarations of Conformity.” You
can then search by product number to
find the latest Declaration of Conformity.

Technology Licenses

The hardware and/or software described
in this document are furnished under a
license and may be used or copied only in
accordance with the terms of such
license.

Warranty

THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,” AND
IS SUBJECT TO BEING CHANGED,
WITHOUT NOTICE, IN FUTURE EDI­TIONS. FURTHER, TO THE MAXIMUM
EXTENT PERMITTED BY APPLICABLE
LAW, KEYSIGHT DISCLAIMS ALL WAR­RANTIES, EITHER EXPRESS OR IMPLIED,
WITH REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED
HEREIN, INCLUDING BUT NOT LIMITED
TO THE IMPLIED WARRANTIES OF MER­CHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS OR
FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES IN CONNECTION WITH THE
FURNISHING, USE, OR PERFORMANCE
OF THIS DOCUMENT OR OF ANY INFOR­MATION CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A SEP­ARATE WRITTEN AGREEMENT WITH
WARRANTY TERMS COVERING THE
MATERIAL IN THIS DOCUMENT THAT
CONFLICT WITH THESE TERMS, THE
WARRANTY TERMS IN THE SEPARATE
AGREEMENT SHALL CONTROL.

Keysight Technologies does not warrant
third-party system-level (combination of
chassis, controllers, modules, etc.) per­formance, safety, or regulatory compli­ance unless specifically stated.

DFARS/Restricted Rights
Notices

If software is for use in the performance
of a U.S. Government prime contract or
subcontract, Software is delivered and
licensed as “Commercial computer soft­ware” as defined in DFAR 252.227-7014
(June 1995), or as a “commercial item” as
defined in FAR 2.101(a) or as “Restricted
computer software” as defined in FAR

52.227-19 (June 1987) or any equivalent
agency regulation or contract clause.
Use, duplication or disclosure of Software
is subject to Keysight Technologies’ stan­dard commercial license terms, and non­DOD Departments and Agencies of the
U.S. Government will receive no greater
than Restricted Rights as defined in FAR

52.227-19(c)(1-2) (June 1987). U.S. Gov­ernment users will receive no greater
than Limited Rights as defined in FAR

52.227-14 (June 1987) or DFAR 252.227­7015 (b)(2) (November 1995), as applica­ble in any technical data.

Safety Information

The following general safety precau­tions must be observed during all
phases of operation of this instrument.
Failure to comply with these precau­tions or with specific warnings or oper­ating instructions in the product
manuals violates safety standards of
design, manufacture, and intended use
of the instrument. Keysight Technolo­gies assumes no liability for the cus­tomer's failure to comply with these
requirements.

General

Do not use this product in any manner not
specified by the manufacturer. The protec­tive features of this product must not be
impaired if it is used in a manner specified in
the operation instructions.

Before Applying Power

Verify that all safety precautions are taken.
Make all connections to the unit before
applying power. Note the external markings
described under “Safety Symbols”.

Ground the Instrument

Keysight chassis’ are provided with a
grounding-type power plug. The
instrument chassis and cover must be
connected to an electrical ground to
minimize shock hazard. The ground pin
must be firmly connected to an electri­cal ground (safety ground) terminal at
the power outlet. Any interruption of
the protective (grounding) conductor
or disconnection of the protective
earth terminal will cause a potential
shock hazard that could result in per­sonal injury.

Do Not Operate in an Explosive
Atmosphere

Do not operate the module/chassis in
the presence of flammable gases or
fumes.

Do Not Operate Near Flammable
Liquids

Do not operate the module/chassis in
the presence of flammable liquids or
near containers of such liquids.

Cleaning

Clean the outside of the Keysight mod­ule/chassis with a soft, lint-free,
slightly dampened cloth. Do not use
detergent or chemical solvents.

Do Not Remove Instrument Cover

Only qualified, service-trained person­nel who are aware of the hazards
involved should remove instrument
covers. Always disconnect the power
cable and any external circuits before
removing the instrument cover.

Keep away from live circuits

Operating personnel must not remove
equipment covers or shields. Proce­dures involving the removal of covers
and shields are for use by service­trained 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 service­trained personnel. If necessary, return
the product to a Keysight Technologies
Sales and Service Office for service and
repair to ensure the safety features are
maintained.

DO NOT block the primary
disconnect

The primary disconnect device is the
appliance connector/power cord when
a chassis used by itself, but when
installed into a rack or system the dis­connect may be impaired and must be
considered part of the installation.

Do Not Modify the Instrument

Do not install substitute parts or per­form any unauthorized modification to
the product. Return the product to a
Keysight Sales and Service Office to
ensure that safety features are main­tained.

In Case of Damage

Instruments that appear damaged or
defective should be made inoperative
and secured against unintended oper­ation until they can be repaired by
qualified service personnel

Do NOT block vents and fan exhaust:
To ensure adequate cooling and venti­lation, leave a gap of at least 50mm
(2") around vent holes on both sides of
the chassis.

Do NOT operate with empty slots: To
ensure proper cooling and avoid dam­aging equipment, fill each empty slot
with an AXIe filler panel module.

Do NOT stack free-standing chassis:
Stacked chassis should be rack­mounted.

All modules are grounded through the
chassis: During installation, tighten
each module's retaining screws to
secure the module to the chassis and
to make the ground connection.

Operator is responsible to maintain
safe operating conditions. To ensure
safe operating conditions, modules
should not be operated beyond the full
temperature range specified in the
Environmental and physical specifica­tion. Exceeding safe operating condi­tions can result in shorter lifespan,
improper module performance and
user safety issues. When the modules
are in use and operation within the
specified full temperature range is not
maintained, module surface tempera­tures may exceed safe handling condi­tions which can cause discomfort or
burns if touched. In the event of a
module exceeding the full temperature
range, always allow the module to cool
before touching or removing modules
from the chassis.

4

Safety Symbols

A CAUTION denotes a hazard. It
calls attention to an operating pro­cedure or practice, that, if not cor­rectly performed or adhered to
could result in damage to the
product or loss of important data.
Do not proceed beyond a CAUTION
notice until the indicated condi­tions are fully understood and met.

A WARNING denotes a hazard. It
calls attention to an operating pro­cedure or practice, that, if not cor­rectly performed or adhered to,
could result in personal injury or
death. Do not proceed beyond a
WARNING notice until the indi­cated conditions are fully under­stood and met.

Products display the following sym­bols:

Warning, risk of electric
shock

Refer to manual for addi­tional safety information.

Earth Ground.

Chassis Ground.

Alternating Current (AC).

Direct Current (DC)

5

6

Contents

1 General Information

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

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Module Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Module Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Module Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Recommended Test Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1 Installation

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

Initial Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Prepare the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Prepare the Terminal Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Prepare the Command Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Ordering Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Field Kits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Terminal Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Terminal Module Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Terminal Module Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Shipping Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2 Operating Information

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

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Querying Module Identification and Configuration . . . . . . . . . . . . . . . . . . . 15

Configuration Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Cleaning Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Terminal Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Main Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Operator’s Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Operator Check Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Keysight E1418A Service Guide 7

3 Verification Tests

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

About the Verification Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Functional Verification Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Quick Verification Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Performance Verification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Performance Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

About Program Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

SCPI drivers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

SCPI Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Functional Verification Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Functional Verification Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Functional Verification Test Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Performance Verification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

DC Voltage Output Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

DC Voltage Compliance Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

DC Voltage Short Circuit Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . 34

DC Current Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Performance Verification Tests Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Performance Test Record. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Test Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Measurement Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Voltage Output Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

DC Compliance Current Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

DC Short Circuit Current Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Test Accuracy Ratio (TAR). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

4 Adjustments

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

Keysight Technologies Calibration Services. . . . . . . . . . . . . . . . . . . . . . . . . 57

Calibration Interval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Closed-Cover Electronic Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Calibration Constants and Non-Volatile Memory . . . . . . . . . . . . . . . . . . . . 58

Making Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

If Permanent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

If Temporary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Voltage Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Current Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

8 Keysight E1418A Service Guide

5 Service

Storing the Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Verify the Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Return the Module to Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Example Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Service Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Visual Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Catastrophic Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

General Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Detailed Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Single Channel Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Repair/Maintenance Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Electrostatic Discharge (ESD) Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 79

Surface Mount Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Tools Needed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Disassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Reassembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

6 Replaceable Parts

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Assembly Exchange. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

To Exchange an Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

7 Manual Changes

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

A Keysight E1418A Specifications

DC Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

DC Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

General Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Cooling Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Keysight E1418A Service Guide 9

10 Keysight E1418A Service Guide

1 General Information

Introduction

Keysight E1418A 8/16 Channel D/A Converter Module
Service Guide

This manual contains information required to test, troubleshoot, and repair the
Keysight E1418A 8/16 Channel D/A Converter Module. See the Keysight E1418A
User’s Manual for additional module information. Figure 1-1 shows the Keysight
E1418A module.

Figure 1-1 Keysight E1418A D/A Converter Module

11

General Information Safety Considerations

Safety Considerations

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

Refer to the WARNINGS page (page 6) in this manual for a summary of safety
information. Safety information for preventive maintenance, testing, adjusting,
and service follows and is also found throughout this manual.

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.

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 that 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.)

12 Keysight E1418A Service Guide

Safety Considerations General Information

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.

USE PROPER FUSES. For continued protection against fire
hazard, replace the line fuses 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.

SHOCK HAZARD. Only service-trained personnel who are
aware of the hazards involved should install, remove, or
configure the module. Before you remove any installed
module, disconnect AC power from the mainframe and
from other modules that may be connected to the module.

CHANNEL WIRING INSULATION. All channels that have a
common connection must be insulated so that the user is
protected from electrical shock. This means wiring for all
channels must be insulated as though each channel carries
the voltage of the highest voltage channel.

Keysight E1418A Service Guide 13

General Information

Module Description

MAXIMUM VOLTAGE. The maximum voltage that can be applied
to any channel is 42 V Peak/42 Vdc. The maximum voltage from
any channel to ground is 42 V Peak/42 Vdc.

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

PARTS REMOVAL. This module uses a surface mount printed
circuit assembly. Special soldering equipment is required for parts
removal or replacement. Use of standard soldering equipment will
cause damage to the printed circuit board and is not covered
under warranty.

The Keysight E1418A is an 8 or 16 channel digital-to-analog converter module
for use in a VXIbus C-size mainframe. The module is a register based device. The
module can be programmed via direct register access or, with the appropriate
driver, by high level commands. This manual describes programming the module
using SCPI (Standard Commands for Programmable Instruments) and the SCPI
driver.

Each Keysight E1418A module is a unique instrument having its own output
buffer and error queue. Multiple modules can not be combined into a

single instrument.

Each channel can be configured to either voltage or current output mode. When
configured for voltage output, voltages in the range of -16.0 V to

+16.0 V can be set. When configured for current output, current in the range of

-0.02 to + 0.02 Amps can be set. The channel output mode can be
programmatically set, or, can be forced to either voltage or current by
mechanical jumpers on the terminal block.

Each output channel is individually configurable to be either an isolated output
or a non-isolated output. Channel configuration to isolated or non-isolated is
made by individual plug-on modules for each channel.

Module Specifications

Specifications are listed in Appendix A of this manual and in the Keysight E1418A
User’s Manual. These specifications are the performance standards or limits
against which the module may be tested.

14 Keysight E1418A Service Guide

Module Description General Information

Module Serial Numbers

Devices covered by this manual are identified by a serial number prefix listed on
the title page. Keysight Technologies uses a two-part serial number in the form
USXXXXYYYYY, where US is the country of origin, XXXX is the serial prefix, and
YYYYY is the serial suffix. The serial number prefix identifies a series of identical
instruments. The serial number suffix is assigned sequentially to each
instrument. The serial number plate is located on the right-hand shield near the
backplane connectors.

Ordering Options

The module may be ordered from Keysight Technologies in a variety of
configurations. As ordered, the module may have the following options:

Description

E1418A 8-Channel D/A Converter with Non-Isolated Outputs

E1418A Option
001

E1418A Option
002

E1418A Option
003

16-Channel D/A Converter with Non-Isolated Outputs

8-Channel D/A Converter with Isolated Outputs

16-Channel D/A Converter with Isolated Outputs

Field Kits

The module can also be user configured. The following field expansion and
configuration kits are available. Each field kit contains installation instructions.

Description Use

E1523A Single Channel Isolated

plug-on module

E1524A Expansion kit, 8-Channel

Non-Isolated Outputs

E1525A Expansion kit, 8-Channel

Isolated Outputs

To change a single channel from
non-isolated to isolated output.

To add 8 additional
non-isolated channels to an

existing 8-channel module.

To add 8 additional isolated
channels to an existing

8-channel module.

Keysight E1418A Service Guide 15

General Information Recommended Test Equipment

Terminal Modules

The standard Keysight E1418A Terminal Module provides screw terminals for
connections. Two other terminal options are available with the Keysight E1418A:

– • Crimp and Insert (Option A3E)

– • Ribbon Cable (Option A3H)

Recommended Test Equipment

Table 1-1 lists the test equipment recommended for testing and servicing the
module. Essential requirements for each piece of test equipment are described in
the Requirements column.

Table 1-1 Recommended Test Equipment

Instrument Requirements Recommended

Model

Controller, GPIB GPIB compatibility as defined by IEEE Standard

488-1988 and the identical ANSI Standard
MC1.1: SH1, AH1, T2, TE0, L2, LE0, SR0,

RL0, PP0, DC0, DT0, and C1, 2, 3, 4, 5.

Mainframe Compatible with the Keysight E1418A E1400B/T, E1401A/T, or

Command Module,
VXILink, EPC7
Embedded Controller

Digital Multimeter
5 1/2 or 6 1/2 digit

Terminal Module Compatible with the Keysight E1418A E1418-60101 O, P,T

Resistor 10 kΩ , 1%, 0.25 W, metal film Any available supplier

Resistor 600 Ω , 1%, 0.25 W, metal film P

Compatible with Module
Resource manager in Slot 0
Logical address 0
Typical GPIB address 9
Requires the downloaded driver
“E1418”

Voltage measurements to ± 16.8 Vdc Current
measurements to ± 0.02 A Four-wire resistance
measurements from 50 Ω to 500 Ω

HP 9000 Series 300 F,O,P,T

E1401B

E1405B or E1406A/B F,O,P,T

Keysight 3458A or
Keysight 34401A

meeting the requirements

Use

F,O,P,T

O, P, T

P

1

User’s Manual E1418-90001 F,O,P,T

1 * F = Functional Verification Tests, O = Operation Verification Tests, P = Performance Verification

Tests, T = Troubleshooting

16 Keysight E1418A Service Guide

Keysight E1418A 8/16 Channel D/A Converter Module
Service Guide

2 Installation

Introduction

This chapter contains the following topics:

Initial Inspection

Initial Inspection page 11
Preparation for Use page 12
Environment page 14
Shipping Guidelines page 14

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 module has been checked mechanically and
electrically. Chapter 4 of this manual gives procedures to check the 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
module does not pass the electrical performance tests, notify your nearest
Keysight Technologies Sales and Service Office. If the shipping container is
damaged or the cushioning material shows signs of stress, notify the carrier as
well as Keysight Technologies. Keep the shipping materials for the carrier’s
inspection.

11

Installation Preparation for Use

Preparation for Use

Chapter 1 of the Keysight E1418A User’s Manual contains complete instructions
for installing the module in a mainframe and installing a terminal module.

Refer to the mainframe user’s manual, command module user’s manual, and the
Installing Device Drivers installation note to prepare the mainframe.

Prepare the Module

Verify or set the module’s logical address. Refer to the Keysight E1418A User’s
Manual for instructions. In this manual the factory default logical address of 72 is
used.

To prepare the module for the adjustment procedures in Chapter 5, set or verify
the position of the CAL Secure Enable Jumper before installing the module in the
mainframe. (The jumper is factory set to CAL.) Figure 5-2 shows this jumper.

Prepare the Terminal Module

The procedures in this manual show the screw-type terminal module. To prepare
this terminal module, you will need to set the jumpers and make connections. If
you are using other types of terminal modules, consult the Keysight E1418A
User’s Manual for proper connections.

Terminal Module Jumpers

The screw-type terminal module contains jumpers that control how the Keysight
E1418A operates. To prepare the module for the Verification Tests in Chapter 4
and Adjustments in Chapter 5, the terminal module jumpers must be set to allow
the module to be programmed from the backplane. The Keysight E1418A will
operate without any jumpers installed. Figure 2-1 shows the jumper locations
and example settings.

There are two jumpers for each channel; a P/J jumper and a V/I jumper. The two
jumpers work together.

The P/J jumper sets the channel output mode to be either Program Selectable or
Jumper Selectable. When the jumper is in the program selectable position, the
channel output mode can be set via programming commands. The program
selectable position is recommended for the Verification Tests and Adjustment
procedures in this manual. In the jumper selectable position, the channel output
mode is set via the V/I jumper.

The V/I jumper sets the channel output mode to either voltage or current when
the P/J jumper is set to the Jumper Selectable position. When the P/J jumper is
set to Program Selectable, this jumper has no effect.

12 Keysight E1418A Service Guide

Preparation for Use Installation

With no jumpers installed, the module will be in the Program
Selectable output mode.

– If you are using a terminal module dedicated to testing the Keysight

E1418A, you can remove all the jumpers or put the jumpers in the storage

position.

– If you are using the end-user’s terminal module, record the positions of the

jumpers. Set the P/J jumpers to the programmable position. Before

returning the module to use, restore the P/J jumpers to their original

position.

Figure 2-1 P/J and V/I Jumpers

Terminal Module Connections

The Verification Tests require four-wire connections at each channel. The
Adjustment procedures can be performed using a single connections at the CAL
terminals. Additional connection information is given in the procedures in
Chapters 4 and 5 of this manual.

Keysight E1418A Service Guide 13

Installation Environment

Prepare the Command Module

All verification and adjustment procedures in this manual use SCPI (Standard
Commands for Programmable Instruments). Prepare the command module by
downloading the SCPI driver named “E1418". Downloading instructions are
given in the Installing Device Drivers installation note.

Environment

The recommended operating altitude for the module is 2000 m (6000 ft) or less.
The recommended operating environment for the module is:

Environment Temperature Humidity

o

Operating 0

Storage and
Shipment

C to + 55 oC <65% relative (0 oC to + 40 oC)

non condensing

o

C to + 75 oC <65% relative (0 oC to + 40 oC)

– 40

non condensing

Shipping Guidelines

If you need to return the Keysight E1418A to Keysight Technologies, first remove
any terminal modules before packaging for shipment. Attach a tag to the
module identifying the owner and indicating the service or repair required. Mark
the shipping container “FRAGILE”. If you are exchanging a module, read Assembly
Exchange.

In any correspondence, refer to the module by model number and full serial
number.

Keysight Technologies recommends using shipping containers and materials
identical to those used by the factory. These materials are available through
Keysight Technologies Sales and Service Offices.

If you use commercially available shipping materials, place the module in an
anti-static bag and wrap the module in heavy paper or plastic. Use a strong
shipping container. A double wall carton of 2400 Pa (350 psi) test material is
adequate.

Use enough shock-absorbing material (layer at least 75 mm to 110 mm, 3 in to 4
in) around the module to provide firm cushion and to prevent movement in the
container. Protect the front panel with cardboard. Seal the container securely
and mark the container “FRAGILE.”

14 Keysight E1418A Service Guide

3 Operating Information

Introduction

Operation

Keysight E1418A 8/16 Channel D/A Converter Module
Service Guide

This chapter provides operating information, preventive maintenance
instructions, and operators checks.

The Keysight E1418A User’s Guide is your reference for module operation. The
User’s Guide contains information about module setup, application examples,
and a complete SCPI command reference.

Querying Module Identification and Configuration

This example will query the module for the identification string and determine
the module configuration.

The module identification is obtained using the IEEE-488 Command *IDN?.

/* Send query to the module*/

*IDN?

/* Enter a string*/

The string returned will be similar to one of the following:

HEWLETT-PACKARD,E1418A_8CH,xxxxxxxxxx,A.01.00

or

HEWLETT-PACKARD,E1418A_16CH,xxxxxxxxxx,A.01.00

The xxxxxxxxxx portion of the response string is the module serial number. The
number of channels in the module (8 or 16) is indicated by the E1418A_8CH or
E1418A_16CH portion of the returned string.

The module configuration is obtained using the DIAGnostic:CONFiguration?
query.

/* Send query to the module*/

DIAG:CONF?

/* Enter six integers and decode the integers*/

The DIAG:CONF? query returns six integers. The six integers returned contain the
module configuration and have the following meaning.

15

Operating Information Operation

Integer

Meaning

Returned

1st Expansion Board ID in the form: 0 = present, 7 = none

(expansion board contains channels 9 through 16)

2nd Terminal Module ID in the form:

0 = screw type, 7 = none or other

3rd Isolated/Non-isolated Channel status

A bit set to 0 indicates an isolated channel
A bit set to 1 indicates a non-isolated channel or no plug-on
module installed (DO NOT operate the module without a plug-on
module)
Bits 0 – 15 correspond to channels 1 – 16, respectively*

4th Channel Mode

A bit set to 0 indicates a current output channel
A bit set to 1 indicates a voltage output channel
Bits 0 – 15 correspond to channels 1 – 16, respectively*

5th Channel Output State

A bit set to 0 indicates the channel output relay is closed
A bit set to 1 indicates the channel output relay is open
Bits 0 – 15 correspond to channels 1 – 16, respectively*

6th Channel Mode Programmable State (P/J Jumper)

A bit set to 0 indicates a channel is not mode programmable
A bit set to 1 indicates a channel is mode programmable
Bits 0 – 15 correspond to channels 1 – 16, respectively

1

1 For 8-channel configurations, the upper 8 bits of integers 3, 4, 5,

and 6 are set to 1’s.

16 Keysight E1418A Service Guide

Operation Operating Information

For example, if the following six integers are returned, the module has the
configuration indicated.

Integer Decimal

Configuration

Value

1st 7 No expansion board installed

(Only channels 1 through 8)

2nd 7 No Terminal Module installed or unknown

terminal module installed

3rd -1 All channels are non-isolated

4th -1 All channels are voltage output channels

5th -1 All channel outputs are disabled

(all output relays are open)

6th -1 All channels are output mode programmable

Configuration Example

The following program segment demonstrates how to read the module
identification string and the configuration. The configuration integers are bit
manipulated using the C operator for bit shifting

result = result <<1

(a one bit shift to the left). The code shown in this example can be obtained from
the file prftest.c on the examples disk provided with this manual.

/** FUNCTION PROTOTYPES **/

void main (void);

void err_handler(ViSession vi, ViStatus x);/* VTL error routine*/

void sys_err(ViSession resource);/* Checks for SCPI programming errors */

/** GLOBAL **/ ViStatus err;

ViSession defaultRM, cmd, dac, dmm;

int num_chan;

void main (void)

{

int i,result = {0},config [6]={0},num_chan = {0};

err=viPrintf(dac, “DIAG:CONF?\n”);/* request module configuration */

if(err VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%,6d”, &config);/* returns six integers*/

if(err VI_SUCCESS) err_handler(dac, err);

sys_err (dac);/* SCPI error check*/

Keysight E1418A Service Guide 17

Operating Information Operation

/* First integer */

result=config[0];/* Expansion board*/

if (result == 0)

{

}

else

{

printf (“Module is a 16 channel device\n”);

num_chan = 16;

if (result == 7)

{

}

else

{

}

}

printf (“Module is an 8 channel device\n”);

num_chan=8;

printf (“Error in DIAG:CONF ? command\n”);

printf (“First value returned was %d \n”,config[0]);

printf (“Program will terminate\n”);

pause();

abort;

/* Second integer */

result = config [1];/* Terminal Module */

if (result == 0)

{

}

else

{

printf (“Module has a screw type terminal module installed\n”);

if (result == 7)

{

18 Keysight E1418A Service Guide

Operation Operating Information

}

else

{

}

}

printf (“Module does NOT have a terminal module installed\n”);

printf (“Error in DIAG:CONF ? command\n”);

printf (“First value returned was %d \n”,config[0]);

printf (“Program will terminate\n”);

pause();

abort;

/* Third integer */

result=config[2];/* Isolated or non-isolated outputs */

if (num_chan == 8) result = result << 8; /* strip upper 8 bits */

for (i=num_chan;i>0;i—)

{

if (result > = 0x8000)

{

}

else

{

}

printf (“Channel %d is configured for non-isolated output\n”,i);

printf(“Channel %d is configured for isolated output\n”,i);

result = result << 1;

}

/* Fourth integer */

result=config[3];/* Output Mode Voltage or Current */

if (num_chan == 8) result = result << 8; /* strip upper 8 bits */

for (i=num_chan;i>0;i—)

{

if (result > = 0x8000)

{

}

else

{

Keysight E1418A Service Guide 19

Operating Information Operation

}

printf (“Channel %d is set to voltage output mode\n”,i);

printf(“Channel %d is set to current output mode\n”,i);

result = result << 1;

}

/* Fifth integer */

result=config[4];/* Channel output ON or OFF */

if (num_chan == 8) result = result << 8; /* strip upper 8 bits */

for (i=num_chan;i>0;i—)

{

if (result > = 0x8000)

{

}

else

{

}

printf (“Channel %d output is disabled\n”,i);

printf(“Channel %d output is enabled\n”,i);

result = result << 1;

}

/* Sixth integer */

result=config[5];/* Program or Jumper Selectable channels */

if (num_chan == 8) result = result << 8; /* strip upper 8 bits */

for (i=num_chan;i>0;i—)

{

if (result >= 0x8000)

{

}

else

{

}

printf (“Channel %d output mode is programmable\n”,i);

printf(“Channel %d output mode is fixed and jumper selected\n”,i);

result = result << 1;

}

•

•

•

}

20 Keysight E1418A Service Guide

Preventive Maintenance Operating Information

Preventive Maintenance

Preventive maintenance consists of periodically cleaning the front panel, the
terminal module, and performing the Operator’s Check. Clean the module and
terminal module yearly, or more often if the module is used in very dusty or
humid areas. Disassembly of the module is not recommended for cleaning.
However, if the module is disassembled for repair or reconfiguration, the printed
circuit board assemblies (PCAs) can be blown off with a properly grounded air
gun. Remove the terminal module cover to blow dust off the terminal printed
circuit board and case. Table 3-1 shows the recommended cleaning equipment
and supplies.

Table 3-1 Recommended Cleaning Equipment and Supplies

Description Recommended Use

Mild Soap Solution Clean face plate panel and terminal covers.

Lint-free Cloth Clean face plate panel and terminal covers.

Airgun with grounded
nozzle

To eliminate possible electrical shock, disconnect ac
power from the mainframe and disconnect all outputs to
the terminal module before removing the module from the
mainframe.

The printed circuit assemblies (PCAs) contain static-sensitive
devices that can be damaged by careless handling. Use
static-control devices (wrist straps, mats, and tools) when
handling the module. Chapter 6 contains additional precautions
for electrostatic discharge (ESD).

Remove dust from the printed circuit boards and
terminal case.

Keysight E1418A Service Guide 21

Operating Information Preventive Maintenance

Cleaning Procedure

Use the following procedure to clean the Keysight E1418A.

Terminal Module

1 Remove the terminal module from the main module.

2 Disconnect all external wiring.

3 Clean the terminal module covers with a mild soap solution and lint-free

cloth.

4 Remove the terminal module cover and blow any dust or debris from the case.

5 Reassemble the terminal module.

6 Reconnect the external wiring.

Main Module

1 Remove the terminal module from the main module.

2 Clean the main module face plate with a mild soap solution and lint-free

cloth.

Disassembling the module exposes the assemblies to ESD damage
and is usually unnecessary. Perform steps 3 through 5 only if the
module is disassembled for repairs or reconfiguration.

3 Disassemble the module following the instructions in Chapter 6.

4 Using an airgun with a grounded nozzle, remove dust from the PCA

assemblies.

5 Reassemble the module.

22 Keysight E1418A Service Guide

Operator’s Checks Operating Information

Operator’s Checks

The operator’s check for the Keysight E1418A has two parts.

The first part consists of sending the SYStem:ERRor? query to the

module following power-on and entering the response. This check should be
performed after every power-on sequence. At power-on, the Keysight E1418A
performs a brief self-test that ensures the module can communicate with the
backplane. A successful self-test returns an integer and a string:

+0,"No Error"

Any other response indicates a failure in the module. Chapter 6 contains
troubleshooting information.

Once the power-on self-test has been checked, the operator may perform a full
self-test by sending the *TST? query and entering the response. This query
executes a full self-test that checks all circuits of the module except the output
relays. A successful self-test returns:

+0

Any other response indicates a failure. Chapter 6 contains additional information
about the self-test error codes and troubleshooting information.

Operator Check Example

This example checks the module for errors after power-on and then performs a
full self-test.

/** FUNCTION PROTOTYPES **/

void main (void);

void err_handler(ViSession vi, ViStatus x);/* VTL error routine */

void sys_err(ViSession resource);/* SCPI error routine */

•

•

•

ViStatus err;/* Global VTL error variable */

void main (void)

{

int selftest;

char selftestresults [80];

err=viPrintf(dac, “*TST?\n”);/* run self test */

if(err VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d%t”, &selftest,&selftestresults);/* enter integer and
string returned */

if(err VI_SUCCESS) err_handler(dac, err);

Keysight E1418A Service Guide 23

Operating Information Operator’s Checks

if (selftest != ’0’)

{

}

else

{

}

}

printf (“Self Test failed\n”);

printf (“The first error encountered was\n”);

printf (“Error number %d %s\n”,selftest,selftestresults);

printf (“This program will terminate\n”);

pause();

abort;

printf (“Self Test PASSED”);

/*** VTL Error handling function ***/

void err_handler (ViSession dac, ViStatus err)

{

char buf[1024]={0}; viStatusDesc(dac,err,buf); printf(“VTL ERROR = %s\n”,
buf); return;

} /*End of VTL error handler */

/*** SCPI error checking and reporting function ***/

void sys_err(ViSession resource) /* Test for SCPI Errors */

{

char buf [1024] = {0};

int err_no;

err = viPrintf (resource, “SYST:ERR?\n”); /* Check for an error */

if (err < VI_SUCCESS) err_handler(resource,err); /* Check VTL errors */

err = viScanf (resource,"%d%t",&err_no,&buf);

if (err < VI_SUCCESS) err_handler(resource,err); /* Check VTL errors */

while (err_no != 0) /* Report all errors in error que */

{

printf (“\nCommand Error: %d,%s\n”,err_no,buf);

err = viPrintf (resource, “SYST:ERR?\n”);

if (err < VI_SUCCESS) err_handler(resource,err); /* Check VTL errors */

err = viScanf (resource,"%d%t",&err_no,&buf);

if (err < VI_SUCCESS) err_handler(resource,err); /* Check VTL errors */

}

flushall();/* Clean out the buffers */

24 Keysight E1418A Service Guide

Operator’s Checks Operating Information

err = viFlush(resource,VI_READ_BUF);

if (err < VI_SUCCESS) err_handler (resource,err); /* Check VTL errors */

err = viFlush(resource,VI_WRITE_BUF);

if (err < VI_SUCCESS) err_handler (resource,err); /* Check VTL errors */

} /* End of checking for SCPI errors */

Keysight E1418A Service Guide 25

Operating Information Operator’s Checks

26 Keysight E1418A Service Guide

4 Verification Tests

Introduction

Keysight E1418A 8/16 Channel D/A Converter Module
Service Guide

Three test procedures are given in this chapter. These test procedures are used
to verify that:

– the Keysight E1418A is functional (Functional Verification)

– the Keysight E1418A meets selected testable specifications (Quick

Verification)

– the Keysight E1418A meets all testable specifications (Performance

Verification)

Test Conditions

Table 1-1 lists the recommended test equipment. When performing the test
procedures, observe the following test conditions:

– The ambient temperature should be between 18 °C and 28 °C. The

– The relative humidity should be < 65%, non-condensing.

– Install the module, apply power, and allow the module to warm up for at

Keysight Technologies recommends performance tests be performed at one year
intervals. In severe operating environments, or after heavy use, perform the tests
more often.

Do not perform any of the following verification tests unless
you are a qualified, service-trained technician and have
read the WARNINGS and CAUTIONS in Chapter 1 of this
manual.

temperature should be stable within ± 1 °C.

least 15 minutes.

27

Verification Tests About the Verification Tests

About the Verification Tests

Three levels of verification tests are described in this chapter:

– Functional Verification Tests

– Quick Verification Tests

– Performance Verification Tests

You should perform the Functional Verification test before either the Quick
Verification or full Performance Verification tests.

Functional Verification Test

The Functional Verification test provides a high confidence that the module is
operational. A brief self-test is performed when power is first applied to the
module. This test assures that module can communicate with the mainframe.

The Functional Verification Test performs a more complete self-test using the
SCPI common command *TST?. If this test passes, you have a high confidence
level (90%) that the module is operational.

If the module fails the Functional Verification Test, repair is needed.

Quick Verification Tests

The Quick Verification Test combines a Functional Verification Test with an
abbreviated set of Performance Tests to give a high confidence level that the
module is operational and meets its specifications. The Quick Performance Test
is the minimum set of tests recommended after any service activity.

These tests check the module’s performance for normal accuracy and drift
mechanisms. These tests do not check for abnormal component failures.

Quick Verification Tests are designated with the letter “Q” in the Performance
Verification Tests. To perform the Quick Verification Tests:

1 1. Perform a Functional Verification Test.

2 2. Perform the Performance Verification Tests designated by the letter“Q” in

the table.

If the module fails the Quick Verification Test, adjustment or repair is needed.

28 Keysight E1418A Service Guide

About the Verification Tests Verification Tests

Performance Verification Tests

Performance Verification Tests give a high confidence that the module is
operational and meets its specifications. The Performance Verification Tests can
be used as acceptance tests when the module is first received.

The Performance Verification Tests should be run at the calibration interval
(Keysight Technologies recommends a one year interval). Run the tests to
characterize the module against the specifications. Run the Performance
Verification Tests after any adjustment to verify the adjustment.

If the module fails any Performance Verification Tests, adjustment or repair is
needed.

Performance Test Record

Table 4-1 provides space to enter the results of each Performance Verification
test. The table also lists the upper and lower test limits.

About Program Examples

In this manual test procedures are shown with a portion of an example program
that performs the test. These examples are in ANSI C format and complete
program files are included on the disk supplied with this manual. Most examples
in this chapter are included. The examples are ASCII files with the *.c extension.

The int data type is system dependent. These examples were
developed on a system where int is a 16-bit integer. Other systems
may define int to be a different width.

In the examples, the Keysight VISA Transition Library is used for I/O operations
with the VXIbus. An Keysight command module (Keysight E1405/E1406) is used
and controlled via GPIB.

To use the Keysight VISA Transition Library (abbreviated as VTL), include the
visa.h header file.

#include visa.h

Keysight VTL function calls and data types typically begin with the lower case
letters vi. Output and enter are performed with functions named viPrintf and
viScanf. Both these functions require a session (a VTL defined I/O function) to
uniquely identify the device being controlled. In the examples, the session has
been named dac.

Keysight E1418A Service Guide 29

Verification Tests About the Verification Tests

SCPI drivers

In this manual, all programming examples and procedures assume the use of the
SCPI driver and Keysight E1406A Command Module. The Keysight E1418A
module is shipped with two 3.5" disks. These disks contain the SCPI driver for the
Keysight E1406A Command Module. One disk is in LIF format and one disk is in
DOS format. Installing Device Drivers Installation Note is included with the disks.
Follow the instructions contained in the installation note to properly install the
device driver.

Use the DIAG:DRIV:LIST? query on the command module to verify that the
correct device driver is installed. Responses to this query vary depending upon
the drivers loaded on your system. A typical response contains a list of all drivers
installed and might look like:

E1418,E1418,A.01.00,RAM;SWITCH,SWITCHBOX,A.08.00,RAM;
SYSTEM,E1405A,A.08.00,ROM;IBASIC,IBASIC,A.04.02,ROM;VOLT
MTR,E1326A,A.05.00,ROM;SWITCH,SWITCHBOX,A.07.00,ROM;COUN
TER,E1332A,A.04.02,ROM;COUNTER,E1333A,A.04.02,ROM;
DIG_I/O,E1330A,A.04.03,ROM;D/A,E1328A,A.04.02,ROM

The string E1418,E1418,A.01.00, should be located somewhere within the
returned string.

SCPI Command Reference

The SCPI (Standard Commands for Programmable Instruments) commands are
not documented in this manual except in a general manner. Complete SCPI
commands, including syntax and parameters, applicable to the module are
documented in the Keysight E1418A User’s Guide.

30 Keysight E1418A Service Guide

Functional Verification Test Verification Tests

Functional Verification Test

The Functional Verification Test quickly verifies that the module is operational.
Perform this test any time to verify or check the operation. Perform this test
before beginning any Quick Verification or Performance Verification Tests.

Functional Verification Test Procedure

Use the following procedure to verify the module’s operation.

1 Install the module in the mainframe and apply power.

2 Verify the module passed its power-on self-test by executing the

SYStem:ERRor? query and entering the results.

A passed self-test is indicated by the return

+0, “No Error”

any other return value indicates a power-on failure.

If an incorrect module address is used, the module will not
respond. Verify the module’s address before troubleshooting.

3 Execute the full self-test by sending the *TST? query and entering the result.

A passed self-test is indicated by the return

+0

Any other return value indicates a failure. Additional information about the

self-test results and self-test error codes is given in Chapter 6

Functional Verification Test Example

An example of the Functional Verification Test is provided in Operator Check
Example..

Keysight E1418A Service Guide 31

Verification Tests Performance Verification Tests

Performance Verification Tests

These procedures test the electrical performance of the Keysight E1418A using
the specification in Appendix A as the performance standards. These tests are
suitable for incoming inspections, troubleshooting, and preventive measures.

DC Voltage Output Verification

This procedure tests the dc voltage output performance of the module.

1 For each channel in the module, connect the 10 kΩ resistor and DMM as

shown in Figure 4-1. Channel 1 connections are shown in the figure. Connect
the other channels in a similar manner. Set the DMM to measure dc volts.

Figure 4-1 DC Voltage Output Connections (Channel 1)

2 Set the channel to output each of the following voltages:

+16.00 – 4.00
+12.00 – 8.00
+ 8.00 –12.00
+ 4.00 –16.00

0.00

32 Keysight E1418A Service Guide

Performance Verification Tests Verification Tests

Use the APPLyn:VOLTage xx.xx command, where n is the channel number

and xx.xx is the voltage to output.

3 For each voltage, measure the output voltage with the DMM, enter it in the

table and compare the voltage output to the limits shown in the table.

4 Open the channel output relay by sending the OUTPutn OFF command, where

n is the channel number.

5 Change the connections to the next channel and repeat steps 2, 3, and 4.

6 Repeat steps 2, 3, 4, and 5 for each channel.

DC Voltage Compliance Current

This test checks the compliance current in dc voltage.

1 For each channel in the module, connect the 600 Ω resistor and the DMM as

shown in Figure 4-2. Channel 1 connections are shown in the figure. Connect
the other channels in a similar manner. Set the DMM to measure dc voltage.

Figure 4-2 DC Voltage Output Connections (Channel 1)

2 Set the channel to output +12.00 V. Use the APPLyn:VOLTage 12.00

command, where n is the channel number.

Keysight E1418A Service Guide 33

Verification Tests Performance Verification Tests

3 Measure the output voltage with the DMM, enter it in the table and compare

the measured voltage to the limits shown in the table. The compliance current
is inferred from the voltage across the resistor.

4 Open the channel output relay by sending the OUTPutn OFF command, where

n is the channel number.

5 Change the connections to the next channel and repeat steps 2, 3, and 4.

6 Repeat steps 2, 3, 4, and 5 for each channel.

DC Voltage Short Circuit Output Current

This test checks the short circuit output current for each channel.

1 For each channel in the module, connect the DMM as shown in Figure 4-3.

Channel 1 connections are shown in the figure. Connect the other channels in
a similar manner. Set the DMM to measure dc current (the DMM should have
a current shunt of 100 Ω or less for this test).

Figure 4-3 DC Voltage Output Connections (Channel 1)

2 Set the channel to output +16.00 V. Use the APPLyn:VOLTage 16.00

command, where n is the channel number.

34 Keysight E1418A Service Guide

Performance Verification Tests Verification Tests

3 Measure the output current with the DMM, enter it in the table and compare

the measured current to the limits shown in the table.

4 Open the channel output relay by sending the OUTPutn OFFcommand, where

n is the channel number.

5 Change the connections to the next channel and repeat steps 2, 3, and 4.

6 Repeat steps 2, 3, 4, and 5 for each channel.

DC Current Verification

This test checks the dc current output performance of the module.

1 1. For each channel in the module, connect the DMM as shown in Figure 4-4.

Channel 1 connections are shown in the figure. Connect the other channels in
a similar manner. Set the DMM to measure dc current.

Figure 4-4 DC Current Output Connections (Channel 1)

2 2. Set the channel to output each of the following currents:

+0.020 –0.005

+0.015 –0.010

Keysight E1418A Service Guide 35

Verification Tests Performance Verification Tests

+0.010 –0.015

+0.005 –0.020

0.000

Use the APPLyn:CURRent x.xxx command, where n is the channel number
and x.xxx is the current to output.

3 3. For each current, measure the output current with the DMM, enter it in the

table and compare the current output to the limits shown in the table.

4 4. Open the channel output relay by sending the OUTPutn OFF command,

where n is the channel number.

5 5. Change the connections to the next channel and repeat steps 2, 3, and 4.

6 6. Repeat steps 2, 3, 4, and 5 for each channel.

36 Keysight E1418A Service Guide

Performance Verification Tests Verification Tests

Performance Verification Tests Example

This example demonstrates a full performance verification test of the module.
The code shown in this example can be obtained from the file prftest.c on the
examples disk provided with this manual.

/** FUNCTION PROTOTYPES **/

void main (void);

void err_handler(ViSession vi, ViStatus x); /* VTL error routine */

void sys_err(ViSession resource);/* Checks for SCPI programming errors */

void pause();/* Waits for a keystroke to continue program execution */

void dcv_check ();/* Voltage output verification test */

void compliance_check ();/* Compliance current verification test */

void maxcurrent_check ();/* Short circuit output current verification test */

void current_check ();/* Current output verification test */

/* DMM routines*/

void dmm_setup (char function [6], char range [6]); /* Set function and range
for DMM */

float dmm_measure ();/* get the dmm measurement */

/** GLOBAL **/ ViStatus err;

ViSession defaultRM, cmd, dac, dmm;

int num_chan;/* 8 or 16 */

float dcv_results [16][9]={0};/* Voltage output verification test results */

float compliance_results [16] = {0}; /* Compliance current verification test
results */

float maxcurrent_results [16] = {0};/* Short circuit output current
verification test results */

float current_results [16][9] = {0};/* Current output verification test
results */

void main (void)

{

dcv_check (); compliance_check (); maxcurrent_check (); current_check ();

}

/*** Routine to perform the dcv performance test ***/

void dcv_check ()

{

float v_out [9] = {16, 12, 8, 4, 0, -4,-8, -12, -16}; /* Voltages to output
during test */

int i,j,opc_check;

char function [6] = {“VOLT:DC\0"},range [6] = {”100\0"};

dmm_setup (function,range);

printf (“Voltage Output Check on %d channels”,num_chan);

printf (“\n\n”);

Keysight E1418A Service Guide 37

Verification Tests Performance Verification Tests

printf (“DC VOLTAGE OUTPUT PERFORMANCE TEST\n\n”);

for (i = 0;i != num_chan;i++)

{

/** connection instructions **/

printf (“\tChannel %d test\n”,i+1);

printf (“1.\tMake a four-wire connection from channel %d \n”,i+1);

printf (“\tto a 10,000 Ohm resistor.\n”);

printf (“2.\tMake a two-wire connection from the DMM to\n”);

printf (“\tthe 10,000 Ohm resistor.\n”);

printf (“3.\tThe DMM is set to make DC Volts Measurements on \n”);

printf (“\tthe 100 V range.\n”);

printf (“4.\tFor each channel in the E1418A,\n”);

printf (“\t\tOutput 16 V, 12 V, 8 V, 4 V, 0 V, -4 V, -8 V, -12 V, -16 V.\n”);

printf (“\t\tMeasure each voltage output on the DMM.\n”);

printf (“\n\n”);

pause();

/** voltage output loop **/

for (j=0;j<9;j++)

{

err=viPrintf(dac, “APPLY%d:VOLTAGE %f;*OPC?\n”,i+1,v_out[j]); /* voltage
output*/

if(err VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &opc_check); /* enter OPC integer */

if(err VI_SUCCESS) err_handler(dac, err);

dcv_results [i][j] = dmm_measure();

}

printf (“\nChannel %d Voltage Output Test Done\n\n”,i+1); err=viPrintf(dac,
“OUTPUT%d OFF;*OPC?\n”,i+1); /* Turn output off*/ if(err VI_SUCCESS)
err_handler(dac, err);

err=viScanf(dac, “%d”, &opc_check);/* enter OPC integer */

if(err VI_SUCCESS) err_handler(dac, err);

sys_err (dac);/* SCPI error check */

}

printf (“\n\nEnd of DC Voltage Output Test\n\n”);

err=viPrintf(dac, “*RST\n”);

if(err VI_SUCCESS) err_handler(dac, err);

}

/*** End of dcv_check ***/

/*** Routine to perform the compliance current performance test ***/

void compliance_check ()

{

float v_out = {12};/* Voltage to output */

38 Keysight E1418A Service Guide

Performance Verification Tests Verification Tests

int i,opc_check;

char function [6] = {“VOLT:DC\0"},range [6] = {”100\0"};

dmm_setup (function,range);

printf (“\n\nCompliance Current Verification Test\n\n”);

for (i = 0;i != num_chan;i++)

{

/** connection instructions **/

printf (“\tChannel %d\n”,i+1);

printf (“1.\tMake a four-wire connection from channel %d \n”,i+1);

printf (“\tto a 600 Ohm resistor.\n”);

printf (“2.\tMake a two-wire connection from the DMM to\n”);

printf (“\tthe 600 Ohm resistor.\n”);

printf (“3.\tThe DMM is set to make DC Volts Measurements on \n”);

printf (“\tthe 100 V range.\n”);

printf (“4.\tEach channel is set to output 12 V\n”);

printf (“\t\tMeasure the voltage drop across the resistor output.\n”);

printf (“\n\n”);

pause();

err=viPrintf(dac, “APPLY%d:VOLTAGE %f;*OPC?\n”,i+1,v_out); /* voltage output
*/

if(err VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &opc_check); /* enter OPC integer */ if(err
VI_SUCCESS) err_handler(dac, err); compliance_results [i] = dmm_measure();

err=viPrintf(dac, “OUTPUT%d OFF;*OPC?\n”,i+1); /* Turn output off*/

if(err VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &opc_check);/* enter OPC integer */

if(err VI_SUCCESS) err_handler(dac, err);

sys_err (dac);/* SCPI error check */

}

printf (“\n\nend of Compliance Current Test\n\n”);

err=viPrintf(dac, “*RST\n”);/* reset the dac*/

if(err VI_SUCCESS) err_handler(dac, err);

}

/*** End of compliance_check ***/

/*** Routine to perform the short circuit output current performance test ***/

void maxcurrent_check ()

{

float v_out = {16}; /*voltage to output*/

int i,opc_check;

char function [6] = {“CURR:DC\0"},range [6] = {”0.100\0"};

dmm_setup (function,range);

Keysight E1418A Service Guide 39

Verification Tests Performance Verification Tests

printf (“\n\nShort Circuit Output Current Verification Test\n\n”);

for (i = 0;i != num_chan;i++)

{

/** connection instructions **/

printf (“\tChannel %d\n”,i+1);

printf (“1.\tMake a four-wire connection from channel %d \n”,i+1);

printf (“\tto the DMM current input terminals\n”);

printf (“2.\tThe DMM is set to make DC current Measurements on \n”);

printf (“\tthe 100 mA range.\n”);

printf (“3.\tEach channel is set to output 16 V\n”);

printf (“\t\tMeasure the current flowing through the DMM.\n”);

printf (“\n\n”);

pause();

err=viPrintf(dac, “APPLY%d:VOLTAGE %f;*OPC?\n”,i+1,v_out); /* voltage output
*/

if(err VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &opc_check);/* enter OPC integer */

if(err VI_SUCCESS) err_handler(dac, err);

maxcurrent_results [i] = dmm_measure();

err=viPrintf(dac, “OUTPUT%d OFF;*OPC?\n”,i+1); /* Turn output off*/

if(err VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &opc_check);/* enter OPC integer */

if(err VI_SUCCESS) err_handler(dac, err);

sys_err (dac);/* SCPI error check */

}

printf (“End of Short Circuit Output Current Test”);

err=viPrintf(dac, “*RST\n”);

if(err VI_SUCCESS) err_handler(dac, err);

}

/*** End of maxcurrent_check ***/

/*** Routine to perform the current performance test ***/

void current_check ()

{

float i_out [9] = {0.02F, 0.015F, 0.01F,0.005F, 0, -0.005F,-0.01F, -0.015F,

-0.02F};

/* Currents to output */

int i,j,opc_check; */

char function [6] = {“CURR:DC\0"},range [6] = {”0.100\0"};

dmm_setup (function,range);

printf (“\n\n”);

printf (“DC CURRENT OUTPUT PERFORMANCE TEST\n\n\n\n”);

40 Keysight E1418A Service Guide

Performance Verification Tests Verification Tests

for (i = 0;i != num_chan;i++)

{

/** connection instructions **/

printf (“Channel %d\n”,i+1);

printf (“1.\tMake a two-wire connection from channel %d \n”,i+1);

printf (“\tto the DMM current input terminals.\n”);

printf (“2.\tThe DMM is set to make DC current measurements on \n”);

printf (“\tthe 100 mA range.\n”);

printf (“3.\tFor each channel in the E1418A,\n”);

printf (“\t\tOutput 20 mA, 15 mA, 10 mA, 5 mA, 0 mA, -5 mA, -10 mA, -15 mA,

-20 mA.\n”);

printf (“\t\tMeasure each current output.\n”);

printf (“\n\n”);

pause();

/** current output loop **/

for (j=0;j<9 ;j++)

{

err=viPrintf(dac, “APPLY%d:CURRENT %f;*OPC?\n”,i+1,i_out[j]); /* voltage
output */

if(err VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &opc_check);/* enter OPC integer */

if(err VI_SUCCESS) err_handler(dac, err);

current_results [i][j] = dmm_measure();

}

printf (“Current Output Test on channel %d complete\n\n”,i+1);
err=viPrintf(dac, “OUTPUT%d OFF;*OPC?\n”,i+1); /* Turn output off*/ if(err
VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &opc_check);/* enter OPC integer */

if(err VI_SUCCESS) err_handler(dac, err);

sys_err (dac);/* SCPI error check */

}

printf (“Current Output Verification Test completed”); err=viPrintf(dac,
“*RST\n”);/* reset the dac*/ if(err VI_SUCCESS) err_handler(dac, err);

}

/*** End of current_check ***/

Keysight E1418A Service Guide 41

Verification Tests Performance Test Record

Performance Test Record

Table 4-1 is a form you can copy and use to record the performance verification
test results of the Keysight E1418A. This table shows the output accuracy,
measurement uncertainty, and the test accuracy ratio (TAR) values. The test
marked with a “Q” in the table are the Quick Verification Tests.

Test Limits

The test limits are defined using the 90-day specifications. Appendix A lists the
Keysight E1418A specifications.

Measurement Uncertainty

Measurement uncertainty has been calculated using the Keysight 34401A
90-day specifications. The Keysight 34401A is set to the 61⁄2 digit mode for all
calculations. In both the voltage and current measurement mode, the
measurement uncertainty is given as:

M.U. = % of reading + % of range

Voltage Output Measurements

The 100 V range is used for the voltage output measurements. The specification
is given as:

M.U. = ± (0.0035% of reading + 0.0006% of range)

Keysight
E1418A Output

+ 16.00 V 0.00056 V 0.0006 V ± 0.00116 V

+ 12.00 V 0.00042 V 0.0006 V ± 0.00102 V

+ 8.00 V 0.00028 V 0.0006 V ± 0.00088 V

+ 4.00 V 0.00014 V 0.0006 V ± 0.00074 V

0.00 V 0.00000 V 0.0006 V ± 0.00060 V

– 4.00 V 0.00014 V 0.0006 V ± 0.00074 V

– 8.00 V 0.00028 V 0.0006 V ± 0.00088 V

– 12.00 V 0.00042 V 0.0006 V ± 0.00102 V

% of reading % of range Measurement

Uncertainty

– 16.00 V 0.00056 V 0.0006 V ± 0.00116 V

42 Keysight E1418A Service Guide

Performance Test Record Verification Tests

DC Compliance Current Measurements

The 100 V range is used for the compliance current test. (The compliance current
is inferred from the voltage developed across the resistor).

M.U. = ± (0.035% of reading + 0.0006% of range)

M.U. = ± (0.00042 + 0.0006) = 0.00102 V

DC Short Circuit Current Measurements

The 100 mA range is used for the short circuit current measurement.

M.U. = ± (0.030% of reading + 0.005% of range)

M.U. = ± (0.000018 + 0.000005) = 0.000023 A

Current Output Measurements

The 100 mA range is used for the current output measurements.

M.U. = ± (0.030% of reading + 0.005% of range)

E1418A Output % of reading % of range Measurement

+ 0.020 A 0.000006 A 0.000005 A ± 0.000011 A

+ 0.015 A 0.0000045 A 0.000005 A ± 0.0000095 A

+ 0.010 A 0.000003 A 0.000005 A ± 0.000008 A

+ 0.005 A 0.0000015 A 0.000005 A ± 0.0000065 A

0.000 A 0.00000 A 0.000005 A ± 0.000005 A

– 0.005 A 0.0000015 A 0.000005 A ± 0.0000065 A

– 0.010 A 0.000003 A 0.000005 A ± 0.000008 A

– 0.015 A 0.0000045 A 0.000005 A ± 0.0000095 A

– 0.020 A 0.000006 A 0.000005 A ± 0.000011 A

Test Accuracy Ratio (TAR)

The Test Accuracy Ratio (TAR) is defined as:

TAR

MaximumAllowe d Input– 

----------------------------------------------------------------------------=

MeasurementUn certainty

Uncertainty

Where Maximum Allowed, Input, and Measurement Uncertainty are all in Vdc or
Amps.

The TAR is listed in table 4-1.

Keysight E1418A Service Guide 43

Verification Tests Performance Test Record

Table 4-1 Performance Test Record

Test Facility:

Name Report No.

Address Date

City/State Customer

Phone Tested by

Model Keysight E1418AAmbient Temperature

Serial No. Relative Humidity

Options

Firmware Rev.

Notes:

Test Equipment Used Model Trace Number Cal Due Date

44 Keysight E1418A Service Guide

Performance Test Record Verification Tests

Quick
Check

Q

Q

Q

Q

Channel E1418A

Output

1

1

1

1

1

1

1

1

1

2

2

2

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+16.000 V

+12.000 V

+8.000 V

Min Measured Max M.U. TAR

Voltage Output Check

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+15.989 V

+11.991 V

+7.993 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+16.011 V

+12.009 V

+8.007 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

9.5:1

8.8:1

7.9:1

2

Q

Q

Q

Q

Q

2

2

2

2

2

3

3

3

3

3

3

3

3

3

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

Keysight E1418A Service Guide 45

Verification Tests Performance Test Record

Quick
Check

Q

Q

Q

Q

Channel E1418A

Output

4

4

4

4

4

4

4

4

4

5

5

5

5

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+16.000 V

+12.000 V

+8.000 V

+4.000 V

Min Measured Max M.U. TAR

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+15.989 V

+11.991 V

+7.993 V

+3.995 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

9.5:1

8.8:1

7.9:1

6.7:1

Q

Q

Q

Q

Q

5

5

5

5

5

6

6

6

6

6

6

6

6

6

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

5:1

6.7:1

7.9:1

8.8:1

9.5:1

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

46 Keysight E1418A Service Guide

Performance Test Record Verification Tests

Quick
Check

Q

Q

Q

Q

Q

Q

Channel E1418A

Output

7

7

7

7

7

7

7

7

7

8

8

8

8

8

8

8

8

8

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

Min Measured Max M.U. TAR

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

Q

Q

Q

9

9

9

9

9

9

9

9

9

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

Keysight E1418A Service Guide 47

Verification Tests Performance Test Record

Quick
Check

Q

Q

Q

Q

Channel E1418A

Output

10

10

10

10

10

10

10

10

10

11

11

11

11

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+16.000 V

+12.000 V

+8.000 V

+4.000 V

Min Measured Max M.U. TAR

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+15.989 V

+11.991 V

+7.993 V

+3.995 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

9.5:1

8.8:1

7.9:1

6.7:1

Q

Q

Q

Q

Q

11

11

11

11

11

12

12

12

12

12

12

12

12

12

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

5:1

6.7:1

7.9:1

8.8:1

9.5:1

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

48 Keysight E1418A Service Guide

Performance Test Record Verification Tests

Quick
Check

Q

Q

Q

Q

Channel E1418A

Output

13

13

13

13

13

13

13

13

13

14

14

14

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+16.000 V

+12.000 V

+8.000 V

Min Measured Max M.U. TAR

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+15.989 V

+11.991 V

+7.993 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+16.011 V

+12.009 V

+8.007 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

9.5:1

8.8:1

7.9:1

14

Q

Q

Q

Q

14

14

14

14

14

15

15

15

15

15

15

15

15

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

Q

15

-16.000 V

–16.011

–15.989 V

1.16E-3 V

9.5:1

Keysight E1418A Service Guide 49

Verification Tests Performance Test Record

Quick
Check

Q

Q

Q

Channel E1418A

Output

16

16

16

16

16

16

16

16

16

1

2

3

4

+16.000 V

+12.000 V

+8.000 V

+4.000 V

0.000 V

-4.000 V

-8.000 V

-12.000 V

-16.000 V

+12.000 V

+12.000 V

+12.000 V

+12.000 V

Min Measured Max M.U. TAR

+15.989 V

+11.991 V

+7.993 V

+3.995 V

– 0.003 V

–4.005

–8.007

–12.009

–16.011

DC Voltage Compliance Current Check

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+16.011 V

+12.009 V

+8.007 V

+4.005 V

+0.003 V

–3.995 V

–7.993 V

–11.991 V

–15.989 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

1.16E-3 V

1.02E-3 V

8.80E-4 V

7.40E-4 V

6.00E-4 V

7.40E-4 V

8.80E-4 V

1.02E-3 V

1.16E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

9.5:1

8.8:1

7.9:1

6.7:1

5:1

6.7:1

7.9:1

8.8:1

9.5:1

8.8:1

8.8:1

8.8:1

8.8:1

5

6

7

8

9

10

11

12

13

14

15

16

+12.000 V

+12.000 V

+12.000 V

+12.000 V

+12.000 V

+12.000 V

+12.000 V

+12.000 V

+12.000 V

+12.000 V

+12.000 V

+12.000 V

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+11.991 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

+12.009 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

1.02E-3 V

8.8:1

8.8:1

8.8:1

8.8:1

8.8:1

8.8:1

8.8:1

8.8:1

8.8:1

8.8:1

8.8:1

8.8:1

50 Keysight E1418A Service Guide

Performance Test Record Verification Tests

Quick
Check

Channel E1418A

Output

1

2

3

4

5

6

7

8

9

10

11

12

13

+16.000 V

+16.000 V

+16.000 V

+16.000 V

+16.000 V

+16.000 V

+16.000 V

+16.000 V

+16.000 V

+16.000 V

+16.000 V

+16.000 V

+16.000 V

Min Measured Max M.U. TAR

DC Voltage Short Circuit Current Check

NA NA NA NA NA
NA NA NA NA NA
NA NA NA NA NA
NA

0.060 A

0.060 A

0.060 A

0.060 A

0.060 A

0.060 A

0.060 A

0.060 A

0.060 A

0.060 A

0.060 A

0.060 A

0.060 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
NA
NA

14

15

16

Q

Q

Q

1

1

1

1

1

1

1

1

1

+16.000 V

+16.000 V

+16.000 V

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

DC Current Output Check

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

0.060 A

0.060 A

0.060 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

2.3E-5 A

2.3E-5 A

2.3E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

Keysight E1418A Service Guide 51

Verification Tests Performance Test Record

Quick
Check

Q

Q

Q

Q

Channel E1418A

Output

2

2

2

2

2

2

2

2

2

3

3

3

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

Min Measured Max M.U. TAR

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

3

Q

Q

Q

Q

3

3

3

3

3

4

4

4

4

4

4

4

4

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

Q

4

–0.02000 A

–0.020023 A

–0.019977 A

1.10E-5 A

2.1:1

52 Keysight E1418A Service Guide

Performance Test Record Verification Tests

Quick
Check

Q

Q

Q

Q

Channel E1418A

Output

5

5

5

5

5

5

5

5

5

6

6

6

6

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

Min Measured Max M.U. TAR

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

1.5:1

Q

Q

Q

Q

Q

6

6

6

6

6

7

7

7

7

7

7

7

7

7

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

Keysight E1418A Service Guide 53

Verification Tests Performance Test Record

Quick
Check

Q

Q

Q

Q

Channel E1418A

Output

8

8

8

8

8

8

8

8

8

9

9

9

9

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

Min Measured Max M.U. TAR

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

1.5:1

Q

Q

Q

Q

Q

9

9

9

9

9

10

10

10

10

10

10

10

10

10

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

54 Keysight E1418A Service Guide

Performance Test Record Verification Tests

Quick
Check

Q

Q

Q

Q

Channel E1418A

Output

11

11

11

11

11

11

11

11

11

12

12

12

12

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

Min Measured Max M.U. TAR

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

1.5:1

Q

Q

Q

Q

Q

12

12

12

12

12

13

13

13

13

13

13

13

13

13

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

Keysight E1418A Service Guide 55

Verification Tests Performance Test Record

Quick
Check

Q

Q

Q

Q

Channel E1418A

Output

14

14

14

14

14

14

14

14

14

15

15

15

15

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

Min Measured Max M.U. TAR

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

1.5:1

Q

Q

Q

Q

Q

15

15

15

15

15

16

16

16

16

16

16

16

16

16

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

+0.02000 A

+0.01500 A

+0.01000 A

+0.00500 A

0.00000 A

–0.00500 A

–0.01000 A

–0.01500 A

–0.02000 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.019977 A

+0.0149815 A

+0.009986 A

+0.0049905 A

–0.000005 A

–0.0050095 A

–0.010014 A

–0.0150185 A

–0.020023 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

+0.020023 A

+0.0150185 A

+0.010014 A

+0.0050095 A

+0.000005 A

–0.0049905 A

–0.009986 A

–0.0149815 A

–0.019977 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1.10E-5 A

9.50E-6 A

8.00E-6 A

6.50E-6 A

5.00E-6 A

6.50E-6 A

8.00E-6 A

9.50E-6 A

1.10E-5 A

1:1

1.5:1

1.7:1

1.9:1

2.1:1

2.1:1

1.9:1

1.7:1

1.5:1

1:1

1.5:1

1.7:1

1.9:1

2.1:1

56 Keysight E1418A Service Guide

5 Adjustments

Introduction

Keysight Technologies Calibration Services

Keysight E1418A 8/16 Channel D/A Converter Module
Service Guide

This chapter contains procedures for adjusting the calibration constants in the
Keysight E1418A. Run the Performance Tests (described on Chapter 4) before
any adjustments to characterize the module. Run the Performance Tests after
any adjustments to verify the adjustments made. The module should be adjusted
following any reconfiguration or repair.

Contact the local Keysight Technologies Service Center for low cost calibration
services. The Keysight E1418A is supported on automated calibration systems
which allow calibration at competitive prices. Calibrations to MIL-STD-45662 are
also available.

Calibration Interval

The Keysight E1418A 8/16 Channel D/A Converter Module should be calibrated
on a regular interval determined by the accuracy requirements of you
application. Keysight Technologies recommends calibration every 90 days for
most applications. Demanding applications may require a daily calibration cycle.
Keysight Technologies does not recommend extending the calibration interval
beyond one year in any application.

Whatever calibration interval you use, Keysight Technologies recommends that a
complete adjustment be performed. This increases confidence that the module
will remain in specification for the next calibration interval and provides the best
measure of the module’s long-term stability. Performance Verification Test data
can be used to extend or determine future calibration intervals.

Closed-Cover Electronic Calibration

The Keysight E1418A features closed-cover electronic calibration. There are no
internal mechanical adjustments. Once properly installed, the module can be
tested and adjusted using connections to a terminal module.

Do not perform any of the following adjustment procedures unless
you are a qualified, service trained technician and have read the
warnings and cautions.

57

Adjustments Introduction

Calibration Constants and Non-Volatile Memory

The accuracy of a channel output depends upon a number of calibration
constants. Calibration constants are stored in two locations within the module; in
non-volatile memory and in RAM. The constants in RAM are used by the module
to adjust all outputs during use.

When the module is used with the SCPI driver, the RAM constants are loaded
from the non-volatile memory at power-up. You can adjust the RAM calibration
constants without disturbing the non-volatile memory constants (creating a
temporary adjustment).

Non-volatile memory has a finite number of writes. Writing the calibration
constants to non-volatile memory, therefore, reduces the life of this memory. If
you are calibrating the module at 90 day or 1 year intervals, write the new
constants into non-volatile memory. The new constants will be used following
power-up. If you are adjusting the module more frequently (i.e., daily), write the
new calibration constants into RAM, but do not write to non-volatile memory.

The adjustment procedures in this chapter demonstrate both methods of writing
calibration constants.

58 Keysight E1418A Service Guide

Making Connections Adjustments

Making Connections

All adjustments can be performed using the CAL output terminals. The CAL
output terminals provide one set of connections for both voltage and current
adjustment. Procedures in this chapter assume connections are made at the CAL
output terminals on the screw-type terminal module.

For demanding applications or for adjustment using the intended
load, you can perform the adjustment at each channel output (to
include the output relay contacts, wiring, and the load in the
path). To make the adjustments at each channel output, use the
DIAG:CAL:OUTP CHAN command to set the adjustment point at
the channels instead of the CAL output terminals. Adjustment at
each channel output will require individual four-wire connections.

Figure 5-1 CAL Output Terminals

Keysight E1418A Service Guide 59

Adjustments Adjustment Procedure

Adjustment Procedure

Adjustment is performed on each channel, one at a time. Voltage output and
current output each use unique calibration constants.

Preparation

Before performing any adjustments, determine if the adjustments are to be
temporary or permanent.

If Permanent

1 Turn off the mainframe.

2 Remove the terminal module.

3 Remove the module from the mainframe.

4 Set the Cal Store Enable Jumper to the CAL position as shown below.

Figure 5-2 Cal Store Enable Jumper

5 Re-install the module in the mainframe.

6 Make the CAL output terminal connections on the terminal module.

7 Install the terminal module.

8 Apply power and allow a 15 minute warm-up.

60 Keysight E1418A Service Guide

Adjustment Procedure Adjustments

If Temporary

1 Make the CAL output terminal connections on the terminal module.

2 Install the terminal module.

3 Apply power and allow a 15 minute warm-up.

Voltage Adjustment

Voltage output adjustment uses two of the CALibration subsystem queries.

CALibrationn:CONFigure:VOLTage?

CALibrationn:VALue:VOLTage? <value>

The general procedure for channel voltage adjustment is:

1 Make the connections shown in figure 5-3 or 5-4.

2 Send the CALn:CONF:VOLT? query to the module and read the response until

a 1 is returned (typically the first query response).

3 Read the voltage output on the DMM.

4 Send the DMM value read with the CALn:VAL:VOLT? value query.

5 Enter the query response.

6 Repeat steps 3, 4, and 5 until the CALn:VAL:VOLT? value query returns a 0.

7 Repeat steps 1 through 6 for each channel.

The first query, CALn:CONF:VOLT?, sets the channel to the calibration mode and
returns a 1 when the channel is ready for calibration. When a 1 is returned, the
channel output voltage is set to the first adjustment point.

Read the output voltage on the DMM and return the value obtained using the
CALn:VAL:VOLT? value query. This query returns an integer indicating the
calibration state of the channel. Any non-zero return from this query indicates
additional values are needed.

Each channel will require multiple iterations of the CALn:VAL:VOLT? value query.
A minimum of 9 queries, to a maximum of 50 queries, will be required at each
channel. During the process, the output voltage will range from +16 V to -16 V
and the last values output will be at or near 0 volts.

Keysight E1418A Service Guide 61

Adjustments Adjustment Procedure

Figure 5-3 Voltage Adjustment Connections (CAL)

62 Keysight E1418A Service Guide

Adjustment Procedure Adjustments

Figure 5-4 Optional Voltage Adjustment Connections

Current Adjustment

Current output uses an internal resistance value to calibrate all channels. This
resistance value is approximately 244 Ω.. The current is output adjusted by
measuring the voltage developed across this resistor.

To set the internal resistance value use the following CALibration commands:

CALibration:CONFigure:RESistance?

CALibration:VALue:RESistance <value>

You may also, optionally, use an external resistance value (or
load) on each channel for current output and calibration. If you
wish to specify an external resistor value, you must send the
DIAG:CAL:OUTP CHAN command and perform the adjustment at
each channel output. Any load value may be used but values in
the range of 50 Ω to 500 Ω are recommended.

Note that during the adjustment process self-heating of the
external load may affect the adjustment.

Keysight E1418A Service Guide 63

Adjustments Adjustment Procedure

The resistance value set, either internal or external, is not stored. When using the
internal resistor value, the general procedure is:

1 Make the connections shown in Figure 5-5.

2 Send the CALibration:CONFigure:RESistance? query to the module and read

the response until a 1 is returned (typically the first query response).

3 Read the resistance on the DMM.

4 Send the DMM value read to the module using the

CALibration:VALue:RESistance <value> command.

The resistor value is only set once for current calibration of all channels.

Optional

If you are using an external resistor value, for each channel:

1 Send the CALibration:CONFigure:RESistance? query to the module and read

the response until a 1 is returned (typically the first query response).

2 Measure the channel’s external resistor value on the DMM.

3 Send the DMM value read to the module using the

CALibration:VALue:RESistance <value> command.

64 Keysight E1418A Service Guide

Adjustment Procedure Adjustments

Figure 5-5 Internal Resistor Adjustment Connections

Current output adjustment uses two of the CALibration subsystem queries.
Current adjustment requires voltage measurements.

CALibrationn:CONFigure:CURRent?

CALibrationn:VALue:CURRent? <value>

The current adjustment procedure measures and inputs a voltage
value developed across a known resistor value (set at the start of
the procedure).

Once the calibration resistance value is set as described earlier, the general
procedure for each channel current output adjustment is:

1 Make the connections shown in figure 5-6 or 5-7.

2 Send the CALn:CONF:CURR? query to the module and read the response until

a 1 is returned (typically the first query response).

3 Read the voltage on the DMM.

Keysight E1418A Service Guide 65

Adjustments Adjustment Procedure

4 Send the DMM value read with the CALn:VAL:CURR? <value> query.

5 Enter the query response.

6 Repeat steps 3, 4, and 5 until the CALn:VAL:CURR? <value> query returns a 0.

7 Repeat steps 1 through 6 for each channel.

The first query, CALn:CONF:CURR?, sets the channel to the calibration mode and
returns a 1 when the channel is ready for calibration. When a 1 is returned, the
channel output voltage is set to the first adjustment point.

Read the voltage on the DMM and return the value obtained using the
CALn:VAL:CURR? <value> query. This query returns an integer indicating the
calibration state of the channel. A value other than 0 or 2 from this query
indicates additional values are needed.

Each channel will require multiple iterations of the CALn:VAL:CURR? <value>
query. A minimum of 9 queries, to a maximum of 50 queries, will be required at
each channel. During the process, the output voltage will range from -5 to +5 V
and the last values output will be at or near 0 volts.

Figure 5-6 Current Adjustment Connections (CAL)

66 Keysight E1418A Service Guide

Adjustment Procedure Adjustments

Figure 5-7 Optional Current Adjustment Connections

Storing the Adjustments

Once all adjustments have been made, you can store the new calibration
constants in non-volatile memory by sending the following command:

/* Store the new constants */

CALibration:STORe

This command will generate an error if the Cal Store Enable Jumper is not set to
the CAL position.

The Keysight E1418A will be busy storing the new calibration
constants following the CAL:STOR command. You should not
perform any bus resets or module resets until the store is
complete. You can use the *OPC? query to determine when the
command has finished.

Verify the Adjustments

Run the Performance Verification Tests to verify the adjustments made.

Keysight E1418A Service Guide 67

Adjustments Adjustment Procedure

Return the Module to Use

If you have changed the position of the Cal Store Enable Jumper and you wish to
prevent writing calibration constants to non-volatile memory, set the jumper to
the SECURE position.

If you have changed the position of the terminal jumpers return the jumpers to
their original positions.

Example Program

The following program, written in ANSI C illustrates a full calibration of all
channels for both voltage and current. The internal calibration resistor is used.
The disk provided with this manual contains a calibration example file. This
example uses function calls to the Keysight VISA Transition Library for I/O
operations.

•

•

•

/** FUNCTION PROTOTYPES **/

void main (void);

void err_handler(ViSession vi, ViStatus x); /* VTL error routine
*/

void sys_err(ViSession resource); /* Checks for SCPI programming
errors */ void pause(); /* Waits for a keystroke to
continue program execution */ int config_check ();
/* Checks and reports the module configuration */

/* returns the number of channels in module*/ float get_voltage (); /*
Obtains the measured voltage*/ float get_resistance ();/* Obtains the
measured resistance */

•

•

•

void main (void)

{

char cal_point [5],int_ext [4];

int num_chan,result,compare,i,condition [4];

float meas_volt,meas_res;

•

•

•

/*** VOLTAGE OUTPUT ADJUSTMENT ***/

for (i=1;i<num_chan+1;i++)

68 Keysight E1418A Service Guide

Adjustment Procedure Adjustments

{

result = 0;

while (result < 1)

{

err=viPrintf(dac, “CAL%d:CONF:VOLT?\n”,i); /* Configure for calibration */

if(err < VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &result);/* Enter integer returned*/

/* returns a 1 when ready to calibrate */

if(err < VI_SUCCESS) err_handler(dac, err);

}

result = 1;

while (result !=0)

{

meas_volt=get_voltage ();/* Get the voltage measurement */

err=viPrintf(dac, “CAL%d:VAL:VOLT? %f\n”,i,meas_volt); /* Send the
measurement*/

if(err < VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &result);/* Enter integer returned*/

/* returns a 0 when calibration complete */

if(err < VI_SUCCESS) err_handler(dac, err);

if (result == 5)/* Calibration for this channel aborted*/

{

printf (“Calibration for channel %d aborted\n”,i);

result = 0;

}

}

}

/***CURRENT OUTPUT ADJUSTMENT***/

/*** set the calibration resistor value***/

result = 0;

while (result != 1)

{

err=viPrintf(dac, “CAL:CONF:RES?\n”);/* Configure for resistance calibration
*/

if(err < VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &result);/* Enter integer returned*/

/* returns a 1 when ready to calibrate*/

if(err < VI_SUCCESS) err_handler(dac, err);

}

meas_res = get_resistance();

Keysight E1418A Service Guide 69

Adjustments Adjustment Procedure

err=viPrintf(dac, “CAL:VAL:RES %f\n”,meas_res); /* Send the resistance value
*/

if(err < VI_SUCCESS) err_handler(dac, err);

/*** channel current output adjustment ***/

for (i=1;i<num_chan+1;i++)

{

result = 0;

while (result != 1)

{

err=viPrintf(dac, “CAL%d:CONF:CURR? \n”,i); /* Configure for calibration */

if(err < VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &result);/* Enter integer returned*/

/*, returns a 1 when ready to calibrate */

if(err < VI_SUCCESS) err_handler(dac, err);

}

result = 1;

while (result !=0 && result !=2)

{

meas_volt=get_voltage ();/* Get the voltage measurement */

err=viPrintf(dac, “CAL%d:VAL:CURR? %f\n”,i,meas_volt);

if(err < VI_SUCCESS) err_handler(dac, err);

err=viScanf(dac, “%d”, &result);/* Enter integer returned*/

/* returns a 0 when calibration complete */

if(err < VI_SUCCESS) err_handler(dac, err);

if (result == 5)/* Calibration aborted */

{

printf (“Calibration for channel %d aborted\n\n”,i);

result = 0;

}

}

}

/*** STORE THE NEW CALIBRATION CONSTANTS***/

err=viPrintf(dac, “CAL:STOR;*OPC?\n”);/* Store the new cal constants */

if(err < VI_SUCCESS) err_handler(dac, err);

err=(viScanf(dac,"%d",&result);

if(err < VI_SUCCESS) err_handler(dac, err);

sys_err(dac);

•

70 Keysight E1418A Service Guide

Adjustment Procedure Adjustments

•

•

}

Keysight E1418A Service Guide 71

Adjustments Adjustment Procedure

72 Keysight E1418A Service Guide

6 Service

Introduction

Equipment Required

Keysight E1418A 8/16 Channel D/A Converter Module
Service Guide

This chapter contains troubleshooting, repair and maintenance guidelines.

Do not perform any of the service procedures shown unless you are
a qualified, service-trained technician, and have read the warnings
cautions .

Test equipment required is listed in Table 1-1. Any equipment that satisfies the
requirements listed in the table may be used.

The Keysight E1418A uses Torx head screws. To avoid damage to the screw head
slots, use only a Torx driver for disassembly and assembly. You will need a T10
Torx driver (Keysight Part Number 8710-1284).

Service Aids

Service aids, manual updates, and service literature may be available for the
Keysight E1418A. For information, contact your nearest Keysight Technologies
Sales and Service Office.

73

Service Troubleshooting

Troubleshooting

This section will help isolate a failing assembly.

Visual Checks

Before installing or operating the module, visually inspect the rear panel and
front panel connectors for bent pins. Inspect circuit boards for evidence of arcing
or excessive heat.

If a module does not respond to commands, verify the Logical Address setting.
The Keysight E1418A User’s Guide describes this switch setting.

Catastrophic Failures

If a module does not respond, verify the power fuses F1, F2, F3 and F4.

Self-Test

The internal self-test can be used to isolate most failures of the module. The
major assemblies of the Keysight E1418A are available on an exchange basis.

Use the following SCPI Common Command query to initiate a module self-test.

/* Start the Self-test*/

*TST?

/* Enter the 16-bit integer returned*/

The query will return a +0 if no errors are encountered. Any return other than +0
indicates a failure. The command returns the first test to fail, additional failures
are possible.

The *TST? query initiates a full self-test. You can obtain the complete test results
by using the TEST:TST:RESults? query. This query returns an array of 100
integers representing the results of each self-test.

Use the following SCPI commands to initiate a self-test and obtain complete
results.

/* Start the Self-test*/

*TST?

/* Enter the 16-bit integer returned*/

/* If the returned value is not +0, send*/ TEST:TST:RES?

/*Enter an array of 100 integers*/

74 Keysight E1418A Service Guide

Troubleshooting Service

The integers returned from the self test query have the form:

Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Use Test Number A24 Test Information

General Self-Test

The test number returned by the *TST? query can be used to isolate a failing
assembly. The possible test numbers and probable failing assembly are shown
below.

Test Number Failing Assembly Indicated Notes

0 None All Self-tests passed

1 Main Board

2 through 9 Main Board or Plug-On Modules Test 2 = channel 1, Test 3 = channel 2, etc.

10 through 17 Expansion Board or Plug-on Modules Test 10 = channel 9, Test 11 = channel 10, etc.

18 through 25 Main Board

26 through 33 Main Board

34 through 41 Expansion Board

42 through 43 Main Board

44 through 51 Main Board

52 through 59 Expansion Board

60 through 67 Main Board

68 through 75 Expansion Board

Since the *TST? query returns only the first failure test number,
additional failures are possible but not reported by this query. The
complete test results can be obtained using the TEST:TST:RES?
query after the *TST? query.

Keysight E1418A Service Guide 75

Service Troubleshooting

Detailed Self-Test

Following the *TST? query, the TEST:TST:RESults? query returns complete
self-test details. The following table lists each self-test and the areas checked.

Test Number A24 Value Test Information

Value If Failed

1 0 1 Relay Control Register

0 2 A/D multiplexer

2 through 17 0 Channel Number First DAC check of each channel

18 0 for A16 read

1 for A16 read in
A24 window
2 for A16 read in
A24

19 0 for A16 read/write

1 for A16 read/write
via A24 window

20 0 Register Value VXI Control Register

21 0 Register Value Cal Control Register

22 Lower 8 bits of failed register value Channel Mode Register

23 0 for A16 writes

A16 reads
1 for A16 writes
A24 reads
2 for A24 writes
A16 reads
3 for A24 writes
A24 reads

Register Address ID Register, Device Type Register, VXI Offset

Register Value VXI Control Register

Register Value Card Control Register

Areas Checked

Register,
Card Configuration Register, Isolation Status

Register,
Channel Program Jumper Register

VXI Status Register

24 0 Checksum Error Non-volatile memory checksum

25 Register Value Trigger Control Register

76 Keysight E1418A Service Guide

Troubleshooting Service

Test Number A24 Value Test Information

Value If Failed

26 through 41

(Test 26 = Ch 1
Test 41 = Ch 16)

42 0 Register Value Interrupt Control Register

43 0 1 through 5 Interrupt Status Register, SW Trigger Register,

0 1 Channel SW Trigger Register

0 2 Channel WriteThru Register

0 3 Channel Output

0 4 Channel Triggered Register

0 5 Channel Output

0 6 Channel SW and Trigger Registers

0 7 through 16 Channel SW and Triggered Registers

0 17 Channel Triggered Register

0 18 Channel Output

0 19 Channel SW and Triggered Registers

0 20 Channel Output

Areas Checked

and trig ignored bit

44 through 59

(Test 44 = Ch 1
Test 59 = Ch 16)

0 1 through 5 Voltage mode, Set the Gain/Offset Register to

nominal and 5 incrementing values, read the
values in the Calibration Control Register

0 6 Check linearity of values

0 7 Gain Register set to minimum, Channel

Writethru register set to 1 V, read the
Calibration Control Register

0 8 Gain Register set to maximum,

read the Calibration Control Register, calculate
change from previous test

0 9 Gain Register set to nominal, Offset Register

set to minimum, Channel Writethru register set
to -1 V, read the Calibration Control Register

0 10 Offset Register set to maximum,

read the Calibration Control Register, calculate
change from previous test

Keysight E1418A Service Guide 77

Service Troubleshooting

Test Number A24 Value Test Information

Value If Failed

60 through 75

(Test 60 = Ch 1
Test 75 = Ch 16)

76 through 100 0 0 Not Used

0 1 through 5 Current mode, Set the Gain/Offset Register to

0 6 Check linearity of values

0 7 Gain Register set to minimum, Channel Write

0 8 Gain Register set to maximum,

0 9 Gain Register set to nominal, Offset Register

0 10 Offset Register set to maximum,

Areas Checked

nominal and 5 incrementing values, read the
values in the Calibration Control Register

thru register set to 1 V, read the Calibration
Control Register

read the Calibration Control Register,
calculate change from previous test

set to minimum, Channel Write thru register
set to -1 V, read the Calibration Control
Register

read the Calibration Control Register,
calculate change from previous test

Single Channel Failures

A single channel failure, not caught by the self-test, can be caused by one of two
components: the channel plug-on module or the channel output relay.

To help isolate a plug-on module, disassemble the module and swap two
plug-on modules. DO NOT operate the module without a plug-on module
installed for every channel.

If a channel still fails after swapping the plug-on modules, suspect the channel
output relay.

78 Keysight E1418A Service Guide

Repair/Maintenance Guidelines Service

Repair/Maintenance Guidelines

Electrostatic Discharge (ESD) Precautions

Almost all electrical components can be damaged by electrostatic discharge
(ESD) during handling. Component damage can occur at electrostatic discharge
voltages as low as 50 volts. Observe the following guidelines when servicing the
Keysight E1418A.

– Disassemble and reassemble only in a static-free work area.

– Remove all plastic, Styrofoam, vinyl, paper, and other static-generating

materials from the immediate work area.

– Use a conductive work area to dissipate static charge.

– Use a conductive wrist strap to dissipate static charge.

– Minimize handling.

– Do not stack assemblies.

– Use only anti-static solder suckers, soldering irons, and tools.

– Keep replacement parts in original static-free packaging.

Surface Mount Repair

The Keysight E1418A uses surface mount components. Surface mount
components should only be removed using soldering irons or desoldering
stations expressly designed for surface-mount components. Use of conventional
soldering equipment will almost always result in permanent damage to the
printed circuit board and will void your Keysight Technologies warranty.

Disassembly

Tools Needed

– T10 Torx Driver.

– Static-Safe Workstation.

– Static Wrist Strap.

Keysight E1418A Service Guide 79

Service Repair/Maintenance Guidelines

Almost all electrical components can be damaged by electrostatic
discharge (ESD) during handling. Component damage can occur
at electrostatic discharge voltages as low as 50 volts.
Disassemble and re-configure only in a static free work area.
Minimize handling of assemblies and components. Keep all
assemblies and replacement parts in the original static free
packaging.

These procedures should be performed by qualified service
personnel at approved static-safe workstations.

Disassembly Procedure

Refer to Figures 6-1 and 6-2 during these procedures.

1 Remove the 8 T-10 Torx screws in the top cover and remove the top cover.

2 Remove the T-10 Torx screw holding the sheet metal spacer or expansion

board.

a If the Keysight E1418A is an 8 channel device, lift the sheet metal spacer

off the main board.

b If the Keysight E1418A is a 16 channel device, carefully separate the

expansion board and main board printed circuit assemblies. The two
boards are joined by three electrical connectors.

3 The main board and expansion board each have 8 plug-on assemblies. To

remove the plug-on assemblies, remove the T-10 Torx screw securing the
plug-on assembly. Lift the plug-on assembly off the electrical connector. The
plug-on assembly locations are shown in Figure 6-3.

Reassembly procedure

1 Replace all plug-on assemblies. DO NOT operate the module without a

plug-on assembly installed. The plug-on assemblies have a locator hole to
ensure correct orientation, see Figure 6-4.

2 Replace the expansion board or sheet-metal spacer.

3 Replace the top cover.

80 Keysight E1418A Service Guide

Repair/Maintenance Guidelines Service

Figure 6-1 8-Channel Disassembly

Keysight E1418A Service Guide 81

Service Repair/Maintenance Guidelines

Figure 6-2 16-Channel Disassembly

82 Keysight E1418A Service Guide

Repair/Maintenance Guidelines Service

Figure 6-3 Plug-on Channel Locations

Figure 6-4 Installing Plug-on Modules

Keysight E1418A Service Guide 83

Service Repair/Maintenance Guidelines

84 Keysight E1418A Service Guide

Keysight E1418A 8/16 Channel D/A Converter Module
Service Guide

7 Replaceable Parts

Introduction

This chapter contains the following topics:

– Assembly Exchange

– Ordering Information

– Replaceable Parts

Assembly Exchange

The following assemblies are available for exchange.

Part number Assembly

E1418-69201 Main board and all sheet metal. Does NOT include plug-on

assemblies or expansion board.

E1418-69502 Expansion board. Does NOT include plug-on assemblies.

E1418-66503 Isolated plug-on module (replacement, not an exchange).

When exchanging either the main board or the expansion board,
you must disassemble the module and remove all plug-on
assemblies before sending the exchange part. Keep all parts
removed in a safe place.

If you are exchanging a main board from a module configured as a
16-channel device, you must remove the expansion board before
sending the exchange part.

Almost all electrical components can be damaged by electrostatic
discharge (ESD) during handling. Component damage can occur
at electrostatic discharge voltages as low as 50 volts.
Disassemble and re-configure only in a static free work area.
Minimize handling of assemblies and components. Keep all
assemblies and replacement parts in the original static free
packaging.

85

Replaceable Parts Ordering Information

These procedures should be performed by qualified service personnel at
approved static safe workstations.

To Exchange an Assembly

1 Contact the nearest Keysight Technologies Sales and Service Office for

instructions on packaging and shipping.

2 Disassemble the module, using the procedures given in Chapter 6 of this

manual, until just the exchange part is obtained. Remove the plug-on
modules and expansion board if any.

3 Keep all removed parts in a static-safe place. Do not send plug-on modules

with the exchange assembly. Plug-on modules should be individually
replaced, if necessary.

4 Package the assembly in static-safe packaging material.

5 Include a description of the problem encountered as well as your phone

number and return address.

Ordering Information

To order a part listed as an exchange assembly or a part from Table 7-1, 7-2 or
7-3, specify the Keysight part number and the quantity desired. Send the order
to your nearest Keysight Technologies Sales and Service Office.

Table 7-1 Keysight E1418A Exchange/Replaceable Assemblies

Description Reference Designator Exchange

Main board and sheet metal. Does NOT
include plug-on assembles or
expansion board.

Expansion Board. Does NOT
include plug-on assemblies.

Isolated Plug-On Assembly PCB1 through PCB16 None E1418-66503

Non-Isolated plug-On Assembly PCB1 through PCB16 None E1418-66504

A1 E1418-69201 E1418-66501

A2 E1418-69502 E1418-66502

Part Number

New
Part Number

86 Keysight E1418A Service Guide

Ordering Information Replaceable Parts

Table 7-2 Keysight E1418A Replaceable Parts

Reference
Designator

F1001 - 1004 2110-0863 4 Fuse 5A 125V SMT 04703 R459005

HDL1 E1400-45102 1 Hndl-Bottom Metal Injection 28480 E1400-45102

HDL2 E1400-45101 1 Hndl-Top Metal Injection 28480 E1400-45101

MP11 8160-0686 1 Clip-EMC, VXI Module 28480 8160-0686

PCA1 E1418-66501 1 PCA-8CH D/A Converter 28480 E1418-66501

PCA2 E1418-66502 1 PCA-8CH Piggyback 28480 E1418-66502

PCB1-16 E1418-66503 16 PCA-Isolated CH 28480 E1418-66503

PNL1 E1418-00201 1 Panel Front 28480 E1418-00201

SCR1-8 0515-0372 8 SCR-PANM3x.5TXSC 00000

SCR1-2 E1400-00610 2 Shoulder Screw Assembly 28480 E1400-00610

SCR3-10 0515-1135 8 SCRFHM3.0x25TX 00000

SCR14-15 0515-2733 2 SCRPHM2.5 17MM-LG 00000

SCR16-23 0515-0372 9 SCRPANM3 .5TXSC 00000

Keysight Part
Number

E1418-66504 PCA-NON Isolated CH 28480 E1418-66504

QTY Description Mfr

Code

Mfr Part
Number

SCR26 0515-1410 1 SCRPHM3.0x20TXSC 00000

SHD2 E1418-00601 1 SHIELD-TOP 28480 E1418-00601

SHD3 E1418-00604 1 Internal Spacer 28480 E1418-00604

SHD4 E1418-00602 1 SHIELD-BOTTOM 28480 E1418-00602

XJ3001 1258-0141 1 JMPR-REM .025P 28480 1258-0141

Keysight E1418A Service Guide 87

Replaceable Parts Ordering Information

Table 7-3 Terminal Module Replaceable Parts

Reference
Designator

Terminal Module - Common Parts

A1 E1400-84405 1 Case Assembly-Term Lexus 24840 E1400-84405

MP1-2 1390-1027 2 Receptical Quick Fastener 24840 1390-1027

MP3 1460-2552 1 Torsion Spring Left Hand 24840 1460-2552

MP4 1460-2553 1 Torsion Spring Right Hand 24840 1460-2553

MP5 E1400-45103 1 Top Lever 24840 E1400-45103

MP6 E1400-45104 Bottom Lever 24840 E1400-45104

Standard Screw Terminal Module

JM1-32 1259-0141 32 JMPR-REM .025P 24840 1259-0141

MP11-14 1400-0507 4 Cable Tie Nat Nyl 00000

PCA1 E1418-66510 1 PCA Terminal Board 24840 E1418-66510

Crimp and Insert Terminal Module Option A3E

Keysight Part
Number

E1418-60101 1 Terminal Block Assembly 24840 E1418-60101

E1418-60102 1 Terminal Block Asembly 24840 E1418-60102

QTY Description Mfr Code Mfr Part

Number

MP7-10 E1400-21204 4 Crimp & Insert Connector Sup 24840 E1400-21204

P1-2 1252-6532 2 Female Conn Housing Din 24840 1252-6532

SCR1-4 0515-0905 4 SCRPHM2 .5x06PZ 00000

Ribbon Cable Terminal Module Option A3H

E1418-60103 1 Term Block Ribbon Cable 24840 E1418-60103

MP7-10 E1400-21204 4 Crimp & Insert Connector Sup 24840 E1400-21204

MP11-14 1400-0507 4 Cable Tie Nat Nyl 00000

P1-2 1252-6894 2 DIN-IDC 64 CONT CONN 24840 1252-6894

SCR1-4 0515-0905 4 SCRPHM2 .5x06PZ 00000

88 Keysight E1418A Service Guide

Ordering Information Replaceable Parts

Table 7-4 Keysight E1418A Reference Designators

Reference Designators

A Assembly

F Fuse

HDL Handle

J Electrical Connector

JM Jumper

MP Miscellaneous Mechanical Part

P Electrical Connector

PCA Printed Circuit Assembly

PCB Printed Circuit Board

PNL Panel

SCR Screw

SHD Shield

XJ Removable Jumper

Table 7-5. Keysight E1418A Code List of Manufacturers

Mfr. Code Manufacturer’s Name Manufacturer’s Address Zip Code

00000 Any suitable supplier may be used

04703 Little Fuse Inc. Arcola, IL, U.S.A. 61910

28480 Keysight Technologies - Corporate Palo Alto, CA, U.S.A. 94304

Keysight E1418A Service Guide 89

Replaceable Parts Ordering Information

Figure 7-1 Keysight E1418A Replaceable Parts

90 Keysight E1418A Service Guide

Ordering Information Replaceable Parts

Figure 7-2 Keysight E1418A Replaceable Parts

Keysight E1418A Service Guide 91

Replaceable Parts Ordering Information

Figure 7-3 Keysight E1418A Replaceable Parts

92 Keysight E1418A Service Guide

Ordering Information Replaceable Parts

Figure 7-4 Keysight E1418A Replaceable Parts

Keysight E1418A Service Guide 93

Replaceable Parts Ordering Information

94 Keysight E1418A Service Guide