Hp Hp 85062a Service manual

HP

85062A

3.5

mm

Electronic

Calibration

Kit

Operating

and

Service

Manual

SERIAL

NUMBERS

This

manual

applies

directly

to

any

HP

85062A

Calibration

Kit

having

serial

prefix

US3444

and

above.

HEWLETT

PACKARD

HP Part Number:

85062-90001

Printed in USA

1995

First Edition

0

CERTIFICATION

I

Hewlett-Packard Company certifies that this product met its published specifications at the time of

shipment from the factory. Hewlett-Packard further certifies that its calibration measurements are

traceable to the United States National Institute of Standards and Technology (NIST, formerly NBS), to

the extent allowed by the institutes calibration facility, and to the calibration facilities of other

International Standards Organization members.

WARRANTY

This

Hewlett-Packard

instrument

product

is

warranted

against

defects

in

material

and

workmanship

for

a

period

of

one

year

from

date

of

delivery.

During

the

warranty

period,

Hewlett-Packard

will,

at

its

option,

either

repair

or

replace

products

which

prove

to

be

defective.

For

warranty

service

or

repair,

this

product

must

be

returned

to

a

service

facility

designated

by

HP.

Buyer

shall

prepay

shipping

charges

to

HP

and

HP

shall

pay

all

shipping

charges

to

return

the

product

to

Buyer.

However,

Buyer

shall

pay

all

shipping

charges,

duties,

and

taxes

for

products

returned

to

HP

from

another

country.

HP

warrants

that

its

software

and

firmware

designated

by

HP

for

use

with

an

instrument

will

execute

its

programming

instructions

when

properly

installed

on

that

instrument.

HP

does

not

warrant

that

the

operation

of

the

instrument,

or

software,

or

firmware

will

be

uninterrupted

or

error

free.

LIMITATION OF WARRANTY

The

foregoing

warranty

shall

not

apply

to

defects

resultin,

0

from

improper

maintenance

by

Buyer,

Buyer-supplied

software

or

interfacing,

unauthorized

modification

or

misuse,

operation

outside

of

the

environmental

specifications

for

the

product,

or

improper

site

preparation

or

maintenance.

NO

OTHER

WARRANT

Y

IS

EXPRESSED

OR

IMPLIED.

HP

SPECIFICALLY

DISCLAIMS

THE

IMPLIED

WARRANTIE

S

OR

MERCHANTABILITY

AND

FITNESS

FOR

A

PARTICULAR

PURPOSE.

EXCLUSIVE

REMEDIES

THE

REMEDIES

PROVIDED

HEREIN

ARE

BUYER’S

SOLE

AND

EXCLUSIVE

REMEDIES.

HP

SHALL

NOT

BE

LIABLE

FOR

ANY

DIRECT,

INDIRECT,

SPECIAL,

INCIDENTAL,

OR

CONSEQUENTIAL

DAMAGES,

WHETHER

BASED

ON

CONTRACT,

TORT,

OR

ANY

OTHER

LEGAL

THEORY.

ASSISTANCE

Product

maintenance

agreements

and

other

customer

assistance

agreements

are

available

for

Hewlett-

Packard

Products.

For

any

assistance,

contact

your

nearest

Hewlett-Packard

Sales

and

Service

Office.

Addresses

are

provided

at

the

back

of

this

manual.

Chapter

1

General

Information

CALIBRATIONKITOVERVIEW

............................................

..~...l-

1

AvailableOptions

...........................................................

..l-

1

EQUIPMENT

REQUIRED

BUT

NOT

SUPPLIED

.....................................

.1-l

SERIALNUMBERS..

..........................................................

..l-

2

INCOMING

INSPECTION

.........................................................

l-3

PREVENTIVEMAINTENANCE

.................................................

..l-

3

Chapter

2

Specifications

and

Characteristics

SPECIFICATIONS

TERMINOLOGY

...............................................

.2-

1

Definitions

.................................................

..~...............2-

1

References

to

Connector

Sex

....................................................

.2-

1

ENVIRONMENTAL

SPECIFICATIONS

............................................

-2-2

Operating

Temperature

and

Accuracy

Enhancement

.................................

-2-2

Barometric

Pressure

and

Relative

Humidity

........................................

.2-3

MECHANICAL

CHARACTERISTICS

..............................................

-2-3

Center

Conductor

Protrusion

and

Depth

........................................

.2-3

ConnectorTorque

...........................................................

..2-

4

SUPPLEMENTAL

CHARACTERISTICS

............................................

-2-4

Chapter

3

User

Information

THE

CALIBRATION

DEVICES

AND

THEIR

USE

....................................

.3-l

Design,

Construction,

and

Functionality

...........................................

.3-

1

CALIBRATIONCONSTANTS

...................................................

..3-

1

PERFORMINGCALIBRATIONS

.................................................

..3-

1

CHANGING

THE

CALIBRATION

DATA

...........................................

-3-l

Chapter

4

Preparation

For

Use

-

Gaging

and

Making

Connections

OPERATINGPRECAUTIONS

.............................................

_......

4-l

Handling

and

Storage

...................................................

.

4-l

Electrostatic

Discharge

.................................................

..-....

4-l

VISUALINSPECTION

...................................................

.._....

4-2

Obvious

Defects

or

Damage

.............................................

.

4-2

Mating

Plane

Surfaces

..................................................

._._...

4-2

ConnectorWear

.......................................................

.

4-2

CLEANINGCONNECTORS

...............................................

.

4-3

Periodically

Check

for

Alcohol

Contamination

...............................

.

_

.

4-3

GENERAL

CLEANING

PROCEDURES

.....................................

.

4-3

GAGING

DEVICES

IN

THIS

KIT

...........................................

.

4-4

Gage

intent

...........................................................

.

4-4

HP

8506ZA

Contents-l

GageAccuracy................................................................4-

4

When

to

Gage

Connectors

......................................................

.4-4

CONNECTOR

GAGES

...........................................................

.4-5

Types

.............

..-.......................................................4-

5

ZEROING

THE

CONNECTOR

GAGE

..............................................

.4-6

GAGING

TECHNIQUES

.........................................................

.4-7

Male

3.5

mm

(Push-on

Type

Gage).

..............................................

-4-7

Male

3.5

mm

(Screw-on

Type

Gage)

.............................................

.4-9

Female

3.5

mm

(Push-on

Type

Gage)

.............................................

.4-

10

Female

3.5

mm

(Screw-on

Type

Gage)

............................................

-4-11

MAKING

CONNECTIONS

.......................................................

.4-

12

InitialConnection

...........................................................

..4-12

FinalConnection

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

2

WEAR

...............

..--............-.........................-...........--..4-13

Chatder

5

Performance

Verification

WHAT

RECERTIFICATION

PROVIDES

............................................

.5-

1

HOWO~NTORECERTIFY.....................................-...............5-

1

WHERE

TO

SEND

A

KIT

FOR

RECERTIFICATION

..................................

-5-2

HOW

HEWLETT-PACKARD

VERIFIES

THE

DEVICES

IN

THIS

KIT

...................

-5-2

Chapter

6

Troubleshooting

RETURNINGAKITORDEVICETOHP

.........................................

.-.6-l

MORE

INFORMATION

..........................................................

.6-

1

Chapter

7

Replaceable

Parts

Contents-2 HP 85062A

Figure

l-l.

Typical

Calibration

Kit

Serial

Number

Label

.

_

.

_

.

_

.

_

.

_

.

_

.

.l-2

Figure

2-1.

Connector

Protrusion

and

Recession

.

_

.

_

.

_

.

_

.2-3

Figure

4-l.

Typical

3.5

mm

Connector

Gage

........................................

.

.4-5

Figure

4-2.

Gaging

a

3.5

mm

Male

Connector

Using

a

Push-on

Type

Gage

................

.

.4-8

Figure

4-3.

Gaging

a

3.5

mm

Male

Connector

Using

a

Screw-on

Type

Gage

...............

.

.4-9

Figure

4-4.

Gaging

a

3.5

mm

Female

Connector

Using

a

Push-on

Type

Gage

..............

.

.4-10

Figure

4-5.

Gaging

a

3.5

mm

Female

Connector

Using

a

Screw-on

Type

Gage

.............

.

.4-11

Figure

4-6.

Using

the

Torque

Wrench

..............................................

.

.4-13

Figure

6-

1.

Troubleshooting

Flow

Diagram

.

_

.

.6-2

Figure

7-l.

HP

85062A,

Option

001,

Replaceable

Parts

..................................

.7-2

Figure

7-2.

HP

85062A,

Option

00

1

and

Option

OOM,

Replaceable

Parts

....................

.7-3

Figure

7-3.

HP

85062A,

Option

001

and

Option

OOF,

Replaceable

Parts

.....................

.7-4

Table

l-

1.

Serial

Numbers

of

Individual

Calibration

Devices

.

-

.

_

.

l-3

Table

2-

1.

Environmental

Specifications

..............................................

.2-2

Table

2-2.3.5

mm

Connector

Depth

Limits

........................................

.2-4

Table

2-3.

Electrical

Characteristics

.................................................

-2-4

Table

2-4.

Mechanical

Characteristics

................................................

-2-4

Table

7-l.

Replaceable

Parts

.

_

.

_

.

_

.

_

.

.7-l

HP 85062A

Contents-3

Chapter

1

General

Information

CALIBRATION

KIT

OVERVIEW

The

HP

85062A

3.5

mm

Electronic

Calibration

Kit

is

designed

to

work

with

the

HP

8506OC

Electronic

Calibration

(ECal)

Control

Unit

to

calibrate

network

analyzer

systems

(such

as

the

HP

85

10)

for

measure-

ment

of

components

with

3.5

mm

connectors

up

to

26.5

GHz.

See

the

Operating,

Programming,

and

Ser-

vice

Manual

for

the

HP

8506OC

control

unit

for

specific

network

analyzer

models.

The

calibration

kit

consists

of

the

following:

l

A

1

to

26.5

GHz

Calibration

Module

(Option

001

adds

a

45

MHz

to

2

GHz

Calibration

Module)

.

A

Specification

/

Verification

Program

Disk

l

An

Operating

and

Service

Manual

l

A

5116

inch,

90

N-cm

(8

in-lb)

torque

wrench

for

use

on

the

3.5

mm

connectors

l

A

Female-to-Female

Adapter

(not

included

with

Option

OOF

or

Option

OOM)

l

A

Male-to-Male

Adapter

(not

included

with

Option

OOF

or

Option

OOM)

This

manual

describes

the

HP

85062A

Electronic

Calibration

Kit

and

provides

replacement

part

numbers,

specifications,

and

procedures

for

using,

maintaining,

and

troubleshooting

the

kit.

The

available

calibra-

tion

types,

the

best

application

for

each

type,

and

the

associated

calibration

procedures

are

found

in

the

Operating,

Programming,

and

Service

Manual

for

the

HP

8506OC

control

unit.

Note

This manual assumes you know proper connector care. If not, refer to

“Principles of Microwave Connector Care-Quick Reference Card”, located in the back of this manual.

Refer to Chapter 7, “Replaceable Parts”, for the HP part number if another copy is needed.

Or, contact your nearest HP sales office for the customer training course:

“Understanding Connectors Used With Network Analyzers”.

43P

8505OA

+ 24A (on-site)

4-J.P

8505OA

+ 24D (at HP sales office)

Available Options

l

Option

001

adds

a

low

band

(45

MHz

to

2

GHz)

calibration

module.

l

Option

OOM

replaces

the

standard

3.5

mm

insertable

module

with

a

non-insertable

male

module.

l

Option

OOF

replaces

the

standard

3.5

mm

insertable

module

with

a

non-insertable

female

module.

Options

may

be

combined.

For

example,

ordering

Option

001

with

Option

OOF

would

provide

both

a

high

band

and

a

low

band

calibration

module

with

non-insertable

female

connectors.

EQUIPMENT REQUIRED BUT NOT SUPPLIED

Connector

gage

sets

are

required

for

measuring

connector

depth.

Gages

and

various

connector

cleaning

supplies

are

not

provided

in

this

kit.

Refer

to

Chapter

7,

“Replaceable

Parts”,

for

ordering

information.

HP 85062A General information l-1

SERIAL NUMBERS

A

serial

number

label

is

attached

to

this

calibration

kit.

The

serial

number

is

in

the

form;

0000000000.

The

)

first

six

digits

form

the

serial

number

prefix

(the

first

two

digits

are

a

country

code,

the

are

a

year/

week

designation).

The

last

four

digits

form

the

suffix

(a

simple

counting

sequence).

The

contents

of

this

manual

apply

directly

to

calibration

kits

having

the

serial

number

prefix(es)

listed

un-

der

SERIAL

NUMBERS

on

the

title

page.

A

typical

serial

number

label

is

shown

in

Figure

l-l.

SERIAL NUMBER

f

-l

PREFIX SUFFIX

Figure I-1. Typical Calibration Kit Serial Number Label

In

addition

to

the

kit

serial

number,

the

calibration

modules

in

the

HP

85062A

calibration

kit

are

individ-

ually

serialized.

These

serial

numbers

should

be

recorded

in

Table

l-l

when

the

kit

is

first

received.

The

purpose

of

this

is

to

help

maintain

the

integrity

of

your

kit.

Kit

integrity

is

one

important

part

of

compliance

with

U.S.

MLSTD-45662A,

should

your

compliance

be

required.

1-2

General Information HP 85062A

Table I-I. Serial Numbers of Individual Calibration Devices

Serialized

Device Serial

Number

(to

be

recorded

by

user)

HP

85062A

3.5

mm

Electronic

Calibration

Kit

HP

85062-6000

1

Electronic

Calibration

Module

(low

band,

insertable,

Option

001)

HP

85062-60002

Electronic

Calibration

Module

(high

band,

insertable,

standard)

HP

85062-60003

Electronic

Calibration

Module

(low

band,

non-insertable

male,

Option

001

and

Option

OOM)

HP

85062-60004

Electronic

Calibration

Module

(high

band,

non-insertable

male,

Option

OOM)

HP

85062-60005

Electronic

Calibration

Module

(low

band,

non-insertable

female,

Option

001

and

Option

OOF)

HP

85062-60006

Electronic

Calibration

Module

(high

band,

non-insertable

female,

Option

OOF)

INCOMING INSPECTION

Refer

to

Figure

7-1,

Figure

7-2,

or

Figure

7-3

(depending

on

your

calibration

kit

options)

to

verify

a

com-

plete

shipment.

Record

the

serial

numbers

of

all

serialized

devices

in

your

kit

using

Table

l-l.

To

verify

electrical

performance

of

the

devices

in

this

kit,

refer

to

Chapter

5,

“Performance

Verification.”

The

foam-

lined

storage

case

provides

protection

during

shipping.

If

the

case

or

any

device

appears

damaged,

contact

the

nearest

Hewlett-Packard

sales

and

service

office

(see

inside

the

back

cover

of

this

manual).

Hewlett-

Packard

will

arrange

for

repair

or

replacement

of

incomplete

or

damaged

shipments

without

waiting

for

settlement

from

the

transportation

company.

If

the

instrument

is

being

returned

to

Hewlett-Packard

for

service,

please

include

service

information

as

described

in

“Returning

a

Kit

or

Device

to

HP”

in

Chapter

6,

“Troubleshooting”

(attach

to

the

instrument

if

possible).

PREVENTWE MAINTENANCE

The

best

techniques

for

maintaining

the

integrity

of

the

devices

in

this

kit

include

routine

visual

inspection

and

cleaning,

and

proper

gaging

and

connection

techniques.

Failure

to

detect

and

remove

dirt

or

metallic

particles

on

a

connector

mating

plane

surface

can

degrade

repeatability

and

accuracy

and

can

damage

any

connector

mated

to

it.

Improper

connections

resulting

from

depth

values

being

out

of

the

observed

lim-

its

(see

Table

2-2)

or

from

using

poor

connection

techniques

can

also

damage

these

devices.

Visual

inspection,

cleaning

and

connection

techniques,

and

proper

gaging

for

depth

are

all

described

in

Chapter

4,

“Preparation

for

Use

-

Gaging

and

Making

Connections.”

HP 85062A General Information l-3

Chapter

2

Specifications

and

Characteristics

SPECIFICATIONS TERMINOLOGY

Definitions

The

definitions

explained

here

help

to

clarify

the

terms

used

in

the

remainder

of

this

chapter.

These

defi-

nitions

refer

to

the

HP

85062A

3.5

mm

Electronic

Calibration

Kit

only

and

are

not

necessarily

valid

defi-

nitions

for

other

HP

products.

Operating

Temperature

Range.

This

is

the

temperature

range

over

which

the

calibration

standards

main-

tain

performance

to

their

specifications.

Accuracy-Enhanced

Temperature

Range.

This

is

the

allowable

network

analyzer

ambient

temperature

drift

during

measurement

calibration

and

during

measurements

when

the

network

analyzer

correction

is

turned

on.

It

is

also

the

range

over

which

the

network

analyzer

maintains

its

specified

performance

while

correction

is

turned

on.

If

this

temperature

range

is

exceeded,

the

accuracy-enhanced

performance

of

the

network

analyzer

will

be

degraded.

Measurement

Calibration.

This

is

the

calibration

performed

to

determine

the

corrections

necessary

for

accuracy-enhanced

(correction

on)

measurements.

Connector

Depth

VaZues.

Refer

to

Figure

2-l

and

Table

2-2.

depth

is

a

relative

measurement

be-

tween

the

center

conductor

and

outer

conductor

mating

surfaces.

All

references

to

depth

in

this

manual

treat

positive

(+)

values

as

protrusions,

and

negative

(-)

values

as

recessions.

References to Connector Sex

In

this

manual,

adapters,

calibration

modules,

and

gage

masters

are

referred

to

by

the

sex

of

their

connec-

tor.

For

example,

a

male

adapter

has

a

male

connector.

A

gage

is

referred

to

by

the

sex

of

the

connector

that

it

measures.

For

example,

a

male

gage

measures

male

connectors;

a

male

gage

has

a

female

connector.

HP 85062A Specifications and Characteristics

2-1

ENVIRONMENTAL SPEClFlCATlONS

Table

2-l

lists

the

environmental

specifications

for

the

modules

in

the

HP

85062

Calibration

Kit.

Table 2-1. Environmental Speci$ications

Specifications Limits

Operating

Temperature

Range

Error-Corrected

Temperature

Range

+20

to

+26

“C

(+68

to

+79

o

F)

*l

“C

of

measurement

calibration

temperature

Storage

Temperature

-40

to

+75

“C

(-40

to

+167

OF)

/

Barometric

Pressure

(Altitude)

Operation

Storage <4,500

meters

(15,000

feet)

<15,000

meters

(50,000

feet)

Relative

Humidity

Operation

Storage

Non-condensing

at

all

times

0

to

80%

(26

“C

maximum

dry

bulb)

0

to

95%

EM1

Conducted

Susceptibility

Radiated

Susceptibility

Radiated

Emissions

Magnetic

Emissions

i

CETM

765

EN

50082-l/IEC

801-3

CISPRl

1

CETM

765

Operating Temperature and Accuracy Enhancement

Temperature

of

the

calibration

modules

is

important

because

device

dimensions

(and

therefore

electrical

characteristics)

change

with

temperature.

The

temperature

of

the

calibration

devices

and

all

connectors

must

be

stable

before

use

and

within

the

operating

limits

shown

above.

A

measurement

calibration

of

the

network

analyzer

can

be

made

at

any

temperature

within

the

operating

temperature

range

of

the

calibration

kit.

The

measurement

calibration

temperature

of

the

network

analyzer

must

be

maintained

within

the

error

corrected

temperature

range

of

the

network

analyzer.

The

error

cor-

rected

operating

temperature

range

for

most

HP

network

analyzers

is

the

initial

measurement

calibration

temperature

&l

“C

(21.8

“F).

See

the

appropriate

network

analyzer

User’s

Manual.

Measurement

calibration,

performance

verification,

and

actual

device

measurements

must

be

made

within

the

error

corrected

operating

temperature

range

specification

of

the

network

analyzer.

Part

of

the

error

cor-

rected

operating

temperature

range

can

fall

outside

of

the

calibration

temperature

window.

For

example,

if

measurement

calibration

is

performed

at

+20

“C

(+68

“F),

verification

and

measurements

must

be

made

between

t-19

“C

(+66.2

OF)

and

+21

“C

(+69.8

“F).

Also,

if

the

network

analyzer

ambient

operating

tem-

perature

drift

exceeds

the

allowable

error

corrected

temperature

range,

a

new

measurement

calibration

must

be

performed

to

assure

optimum

accuracy.

Remember

that

your

fingers

are

a

heat

source,

so

avoid

handling

the

devices

unnecessarily

during

calibra-

tion.

2-2

Specifications and Characteristics HP

85062A

Barometric Pressure

and

Relative Humidity

Barometric

pressure

and

relative

humidity

also

effect

device

performance.

Air

exists

between

the

inner

and

outer

conductors

of

these

devices

and

the

dielectric

constant

of

air

varies

as

pressure

and

humidity

change.

Refer

to

Table

2-l

for

environmental

specifications

including

barometric

pressure.

MECHANICAL CHARACTERISTICS

Center

Conductor Protrusion

and

Depth

Mechanical

characteristics

such

as

center

conductor

protrusion

and

pm

depths

are

not

performance

speci-

fications.

They

are,

however,

important

supplemental

characteristics

electrical

performance.

Hewlett-Packard

verifies

the

mechanical

characteristics

of

the

devices

in

this

kit

with

special

gaging

pro-

cesses

and

electrical

testing.

This

ensures

that

the

device

connectors

do

not

exhibit

any

center

conductor

protrusion

and

have

proper

depth

when

the

kit

leaves

the

factory.

Note

that

center

conductor

protrusion

or

recession

is

referenced

to

the

connector

mating

surface.

Chapter

4,

“Preparation

for

Use

-

Gaging

and

Making

Connections”,

explains

how

to

use

gages

to

deter-

mine

if

the

kit

devices

have

maintained

their

mechanical

integrity

(refer

to

Table

2-2

for

typical

depth

limits).

MALE

FEMALE

Ad

OUTER

CONDUCTORS

CENTER

CONDUCTORS

OUTER CONDUCTOR

--j

MATING PLANE

Zero

pm

depth

is

when

Ad

=

zero.

A

protruding

center

conductor

is

when

Ad

is

a

positive

(+)

value.

A

recessed

center

conductor

is

when

Ad

is

a

negative

(-)

value.

Figure 2-l. Connector Protrusion and Recession

OUTER CONDUCTOR

MATING PLANE

HP

85062A

Specifications and Characteristics

2-3

Table 2-2. 3.5 mm Connector Pin Depth Limits

Device

Typical

Depth

micrometers

(

1

OA

inches)

Measurement

Uncertainty

a

micrometers

(1

Om4

inches)

Observed

Depth

Limits

micrometers

(1

OT4

inches)

3.5

mm Electronic

Cal-

-25.4

to

-50.8 +1.3 to -1.3 -24.1

to

-52.1

ibration

Module (-10.0

to

-20.0)

(+0.5

to

-0.5) (-9.5

to

-20.5)

3.5

mm Adapter

-2.5

to

-13.0

+1.3

to

-1.3

-1.2

to

-14.3

(-

1

.o

to

-5.0) (+0.5

to

-0.5)

(-0.5

to

-5.5)

a. Approximately +2 sigma to -2 sigma of gage uncertainty based on studies performed at the factory using

analog

gages according to recommended procedures.

Connector Torque

Torque

all

3.5

mm

connectors

to

90

N-cm

(8

in-lb).

Accuracy

of

the

torque

wrench

supplied

in

this

kit

is

90

N-cm

*lo%

(kg.0 N-cm).

SUPPLEMENTAL CHARACTERISTICS

Table 2-3. Electrical Characteristics

Characteristic Limit

Frequency

Range

Standard l-26.5

GHz

Option

001

0.045-2

GHz

1

Maximum

RF

Input

Power +20

dBm

I

Table 2-4. Mechanical Characteristics

Characteristic

I

Limit

I

Net

Weight

Standard

Option

001

Shipping

Weight

Standard

Option

001

Dimensions

(length

x

width

x

height)

1,172

grams

(2.6

lbs)

1,623

grams

(3.6

lbs)

1,893

grams

(4.2

lbs)

2,360

grams

(5.2

lbs)

350

x

200

x

67

mm

(13.8

x

7.9

x

2.6

inches)

2-4

Specifications and Characteristics HP 85062A

Chapter

3

User

Information

THE CALIBRATION DEVICES AND

THEIR

USE

The

HP

85062A

3.5

mm

Electronic

Calibration

Kit

contains

a

high

band

(1

to

26.5

GHz)

electronic

cali-

bration

module,

Option

001

adds

a

low

band

(45

MHz

to

2

GHz)

electronic

calibration

module.

Other

op-

tions

are

described

in

Chapter

1.

The

following

briefly

describes

the

design,

construction,

and

functionality

of

an

electronic

calibration

module.

Design, Construction,

and

Functionality

Electronic

calibration

is

achieved

using

a

two

part

system

consisting

of

an

HP

8506OC

Electronic

Calibra-

tion

Control

Unit

and

various

two-port

electronic

calibration

modules.

The

control

unit

houses

a

computer

with

built-in

firmware

and

controls

the

entire

calibration

process.

The

calibration

modules

are

solid-state

devices

with

programmable

repeatable

impedance

states.

These

modules

are

characterized

at

Hewlett-

Packard

and

are

used

to

transfer

the

factory

calibration

accuracy

to

the

customer.

The

microwave

circuitry

in

the

module

uses

semiconductor

diode

switches

which

shunt

the

transmis-

sion

lines

to

ground.

The

number

of

diodes,

and

their

location,

vary

depending

upon

the

frequency

require-

ments.

A

multitude

of

reflection

coefficients

are

generated

by

applying

various

combinations

of

the

shunts-

Without

shunts,

the

network

acts

as

a

low-loss

transmission

line.

High

isolation

between

the

ports

is

ob-

tained

by

driving

several

of

the

diode

shunts

simultaneously.

Control

logic

within

the

module

is

pro-

grammed

to

drive

the

diodes

to

their

various

states.

The

factory

measured

S-parameter

data

of

each

of

the

various

impedance

states

is

stored

inside

of

the

mod-

ule.

This

factory

data

is

compared

to

the

measured

data,

collected

during

the

calibration

process,

and

error

terms

are

calculated.

CALIBRATION CONSTANTS

The

HP

85062A

Electronic

Calibration

Kit

is

unlike

our

standard

mechanical

calibration

kits.

There

are

no

calibration

constants

to

be

loaded

into

the

network

analyzer.

All

of

the

calibration

data

for

each

indi-

vidual

electronic

calibration

module

is

stored

within

the

module,

and

is

traceable

to

NIST

(National

Insti-

tute

of

Standards

and

Technology).

This

calibration

data

is

read

by

the

HP

8506OC

Electronic

Calibration

Control

Unit

each

time

a

calibration

is

performed.

PERFORMING CALIBRATIONS

The

calibration

type

and

procedure

to

be

used

depends

on

the

type

and

accuracy

of

measurement

required

for

the

device-under-test.

The

operating,

programming,

and

service

manual

for

the

HP

8506OC

Electronic

Calibration

Control

Unit

provides

information

regarding

the

available

calibration

types,

the

best

applica-

tion

for

each

type,

and

describes

the

calibration

procedures

in

detail.

For

information

regarding

specific

network

analyzers,

refer

to

the

appropriate

network

analyzer

user’s

manual

or

Hewlett-Packard

application

notes.

CHANGING THE CALIBRATION

DATA

The

calibration

data

stored

in

each

electronic

calibration

module

is

unique

to

that

module

and

can

only

be

changed

when

the

module

is

recertified

or

repaired.

This

recertification

or

repair

can

only

be

performed

at

Hewlett-Packard

or

at

Hewlett-Packard

authorized

service

centers.

HP

85062A

User Information 3-l

Chapter

4

Preparation

For

Use

-

Gaging

and

Making

Connections

OPERATING PRECAUTIONS

There

are

several

precautions

that

must

be

observed

to

protect

the

devices

in

this

kit

and

the

instruments

being

used.

Handling

and

Storage

Handle

and

store

these

calibration

devices

with

great

care;

their

continued

performance

and

accuracy

de-

pend

on

maintaining

very

precise

mechanical

tolerances

of

the

connectors.

When

the

calibration

modules

are

not

in

use,

replace

their

protective

end

caps

and

store

them

in

the

foam

lined

storage

case.

The

storage

case

lid

is

detachable

so

that

the

case

can

be

stored

in

a

shallow

drawer.

Electrostatic Discharge

The human body almost always has some static charge. You are usually not aware of this charge because

CAUTION

the

human threshold for the perception of static discharge shock is approximately 3,000 volts. ESD as low

as 60 volts can destroy sensitive microcircuits. Always wear a grounding wrist strap connected to a

conductive bench mat when working near this and other sensitive equipment.

When

you

clean

or

inspect

connectors

attached

to

any

static

sensitive

circuits,

either

on

the

calibration

module

or

on

any

instruments,

it

is

essential

to

protect

against

electrostatic

discharge

(ESD).

Static

elec-

tricity

builds

up

on

the

body

and

can

easily

damage

sensitive

internal

circuit

elements

when

discharged

by

contact

with

the

center

conductor

of

the

RF

connector

or

the

center

contacts

of

the

25

pm

D-Sub

connector.

l

Always

have

a

grounded

antistatic

mat

in

front

of

your

test

equipment

and

wear

a

grounded

wrist

strap

attached

to

it.

l

Ground

yourself

before

you

clean,

inspect,

or

make

a

connection

to

a

static-sensitive

device

or

test

port.

You

can,

for

example,

grasp

the

grounded

outer

shell

of

the

test

port

briefly

to

discharge

static

from

your

body.

.

Discharge

static

electricity

from

a

device

before

connecting

it:

touch

the

device

briefly

(through

a

resistor

of

at

least

1

megohm)

to

either

the

outer

shell

of

the

test

port

connector

or

to

another

exposed

ground.

This

discharges

static

electricity

and

protects

test

equipment

circuitry.

Refer

to

Chapter

7,

“Replaceable

Parts”,

for

information

about

ordering

supplies

for

ESD

protection.

HP 85062A Preparation For Use

-

Gaging and Making Connections 4-l

VISUAL INSPECTION

Visual

inspection

and,

if

necessary,

cleaning

should

be

done

every

time

a

connection

is

made.

Metal

par-

ticles

from

the

connector

threads

may

fall

into

the

connector

when

it

is

disconnected.

One

connection

made

with

a

dirty

or

damaged

connector

can

damage

both

connectors

beyond

repair.

In

some

cases,

magnification

is

necessary

to

see

damage

on

a

connector.

The

use

of

a

microscope

with

a

magnification

of

10x

or

more

is

recommended

to

detect

this

type

of

damage.

Not

all

defects

that

are

visible

under

magnification

will

affect

the

electrical

performance

of

the

connector.

Use

the

following

guidelines

when

evaluating

the

integrity

of

a

connector.

Obvious Defects or Damage

Examine

the

connectors

first

for

obvious

defects

or

damage:

badly

worn

plating,

deformed

threads

or

bent,

broken,

or

misaligned

center

conductors.

Connector

nuts

should

move

smoothly

and

be

free

of

burrs,

loose

metal

particles,

and

rough

spots.

Any

connector

that

has

obvious

defects

should

be

discarded

or

repaired

before

continuing.

Mating

Plane

Surfaces

Flat contact

between

the

connectors

at

all

points

on

their

mating

plane

surfaces

is

required

for

a

good

con-

nection.

Look

especially

for

deep

scratches

or

dents,

and

for

dirt

and

metal

particles

on

the

connector

mat-

ing

plane

surfaces.

Also,

look

for

bent

or

rounded

edges

on

the

mating

plane

surfaces

of

the

center

and

outer

conductors

and

for

signs

of

damage

due

to

excessive

or

uneven

wear

or

misalignment.

Light

burnishing

of

the

mating

plane

surface

is

normal,

and

is

evident

as

light

scratches

or

shallow

circular

i

marks

distributed

more

or

less

uniformly

over

the

mating

plane

surfaces.

Other

small

defects

and

cosmetic

imperfections

are

also

normal.

None

of

these

affect

electrical

or

mechanical

performance.

If

a

connector

shows

deep

scratches

or

dents,

particles

clinging

to

the

mating

plane

surfaces,

or

uneven

wear,

clean

and

inspect

it

again.

Damaged

connectors

should

be

discarded

or

sent

for

repair.

Try

to

deter-

mine

the

cause

of

damage

before

connecting

a

new,

undamaged

connector

in

the

same

configuration.

Connector Wear

Connector

wear

eventually

degrades

performance.

The

more

use

a

connector

gets,

the

faster

it

wears

and

degrades.

This

is

especially

true

with

electrically

characterized

devices

such

as

ECal

modules.

The

wear

is

greatly

accelerated

when

connectors

are

not

kept

clean.

Calibration

devices

should

have

a

long

life

if

their

use

is

on

the

order

of

a

few

times

per

week.

The

test

port

connectors

on

the

network

analyzer

test

set

may

have

many

connections

each

day,

and

are

therefore

more

subject

to

wear.

It

is

recommended

that

an

adapter

be

used

as

a

test

port

saver

to

minimize

the

wear

on

the

test

set’s

test

port

connectors.

Replace

all

worn

connectors.

4-2

Preparation For Use

-

Gaging and Making Connections HP 85062A

CLEANING CONNECTORS

For

long,

reliable

connector

life,

carefully

clean

all

connectors.

Refer

to

Chapter

7,

“Replaceable

Parts”,

for

information

on

ordering

recommended

cleaning

supplies.

Periodically Check for Alcohol Contamination

1.

Let

a

few

drops

of

your

cleaning

alcohol

evaporate

on

a

clean

glass

plate

or

microscope

slide.

2.

Examine

the

glass

in

reflected

light.

It

should

be

perfectly

clean

and

free

of

residue.

If

not,

do

not

use

alcohol

from

that

container.

To

keep

your

main

supply

of

alcohol

free

from

contamination,

pour

a

small

amount

into

a

clean

container

and

use

that

as

your

cleaning

supply.

Safely

discard

any

remaining

alcohol

in

the

small

container

and

clean

the

container.

CAUTION

If you must use a solvent, use only isopropyl alcohol. Use the least amount of alcohol possible, and avoid

wetting any plastic parts in the connectors.

GENERAL CLEANING PROCEDURES

Warning

Always

use

protective

eyewear

when

using

compressed

air

or

nitrogen.

This

procedure

assumes

you

have

taken

the

necessary

ESD

precautions.

1.

wed

Air

or

m.

Use

compressed

air

or

nitrogen

to

loosen

particles

on

the

connector

mating

plane

surfaces.

Clean

air

cannot

damage

a

connector,

or

leave

particles

or

residues

behind.

You

can

use

any

source

of

clean,

dry,

low-pressure

compressed

air

or

nitrogen

that

has

an

effective

oil-

vapor

filter

and

liquid

condensation

trap

placed

just

before

the

outlet

hose.

Ground

the

hose

nozzle

to

prevent

electrostatic

discharge,

and

set

the

air

pressure

to

a

very

low

velocity;

60

psi

or

less.

High

ve-

locity

air

can

cause

electrostatic

effects

when

directed

into

a

connector.

2.

CleaTl.

For

dirt

or

stubborn

contaminants

on

a

connector

that

you

cannot

remove

with

compressed

air

or

nitrogen,

try

a

cleaning

swab

or

lint-free

cleaning

cloth

moistened

with

isopropyl

alcohol:

a.

Apply

a

small

amount

of

isopropyl

alcohol

to

a

cleaning

swab

or

lint-free

cleaning

cloth.

b.

Clean

the

connector

threads.

c.

Let

the

alcohol

evaporate,

then

blow

the

threads

dry

with

a

gentle

stream

of

clean,

low-

pressure

compressed

air

or

nitrogen.

3.

-suPlane.

u

Apply

a

small

amount

of

isopropyl

alcohol

to

a

new

cleaning

swab

and

clean

the

mating

plane

and

interior

surfaces.

If

the

connector

has

a

center

conductor,

use

very

short

horizontal

or

vertical

strokes

(across

the

con-

nector),

and

the

least

pressure

possible,

especially

when

cleaning

a

female

connector

(to

avoid

snag-

ging

the

swab

on

the

center

conductor

contact

fingers).

An

illuminated

magnifying

glass

helps.

4.

Dry

the

Connector.

After

cleaning,

blow

the

connector

dry

with

a

gentle

stream

of

clean

compressed

air

or

nitrogen.

Always

completely

dry

a

connector

before

you

reassemble

or

use

it.

5.

w.

Inspect the connector again under a magnifyin, o

0

Olass

to be sure that no particles or

residues remain.

HP 85062A Preparation For Use

-

Gaging and Making Connections 4-3

GAGING DEVICES

IN

THIS

KIT

Gage

Intent

Gages

are

intended

for

preventive

maintenance

and

troubleshooting

purposes

only.

They

are

effective

in

detecting

center

conductor

protrusion

or

excessive

recession

and

preventing

connector

damage

on

DUT’s,

test

accessories,

and

the

calibration

kit

devices.

Do

not

use

gages

for

precise

depth

measurements.

Note

While performing pin depth measurements, use different orientations of the gage within the connector.

Averaging a minimum of three readings, each taken after a quarter-turn rotation of the gage, reduces

measurement variations that result from the gage or the connector face not being exactly perpendicular to

the center axis.

Gage

Accuracy

Connector

gages

are

only

capable

of

performing

coarse

measurements.

They

do

not

provide

the

degree

of

accuracy

necessary

to

precisely

measure

the

depth

of

the

kit

devices.

This

is

partially

due

to

the

repeat-

ability

uncertainties

that

are

associated

with

the

measurement.

Only

the

factory,

through

special

gaging

processes

and

electrical

testin

g,

can

accurately

verify

the

mechanical

characteristics

of

the

devices.

With

proper

technique,

however,

the

gages

are

useful

in

detecting

gross

depth

errors

on

device

con-

nectors.

To

achieve

maximum

accuracy,

random

errors

must

be

reduced

by

taking

the

average

of

at

least

three

measurements

having

different

gage

orientations

on

the

connector.

Even

then,

the

resultant

average

can

be

in

error

by

as

much

as

&HMO1

inch

due

to

systematic

(biasing)

errors

usually

resulting

from

worn

gages

and

gage

masters,

therefore,

these

systematic

errors

were

not

included

in

the

uncertainty

analysis.

As

the

gages

endure

more

use,

the

systematic

errors

could

become

more

significant

in

the

accuracy

of

the

measurement.

When

to

Gage Connectors

Gage

a

connector

at

the

following

times:

l

Before

you

use

it

for

the

first

time.

It

is

recommended

that

you

record

the

initial

depth

measure-

ment

of

your

device

to

compare

with

future

readings.

This

serves

as

a

good

troubleshooting

tool

when

you

suspect

damage

may

have

occurred

to

the

device.

l

If

either

visual

inspection

or

electrical

performance

suggests

that

the

connector

interface

may

be

out

of

typical

range

(due

to

wear

or

damage,

for

example).

lIf

a

calibration

device

is

used

by

someone

else

or

on

another

system

or

piece

of

equipment.

lAs

a

matter

of

routine:

initially

after

every

100

connections,

and

after

that

as

often

as

experience

sug-

gests.

4-4

Preparation For Use

-

Gaging and Making Connections

HP 85062A

HP HP 85062A Service manual

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