EG&G 113 Operating And Service Manual

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MOEL

MODEL

113

LOW-

LOW

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BEF ORE OPERATING INSTRUMENT

OPERATING

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SAF ETY NOTIC E

INSTRUMENT

NOTICE

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an

Copyright

APPLIED

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1a<1ow

RESEARCH

Printed In U.S.A.

SHOULD

A. Contact

A.

B.

C.

D.

E.

YOUR

Contact the factory (609/452·2111) or your local factory

representative

will be possible

be

will

problem

problem to a particular plug·in

If it is

necessary

If it is necessary

tory,

we need the following

tory, we need the

(1)

Model

(1)

Model number and serial number.

(2)

Your

(2) Your name (instrument user).

(3)

Your

(3)

Your address.

(4)

Address

(4) Address

(5)

Your

(5)

Your telephone number and extension.

(6)

Symptoms

(6) Symptoms (in detail, including control settings).

(7)

Your

(7) Your purchase order number for repair charges (does

not apply

not apply to repairs in warranty).

(8)

Shipping

(8) Shipping

ment by

ment

transportation).

transportat ion).

U.S. CUSTOMERS—Ship

U.S.

CUSTOMERS-Ship

to:

EG&G

PRINCETON

EG&G

PRINCETON APPLIED RESEARCH

7

Roszel

7 Roszel Road

(Off

Alexander

(Off Alexander Road, East of Route

Princeton,

Princeton, New Jersey

CUSTOMERS

CUSTOMERS OUTSIDE OF

customs

customs clearance of equipment being returned, please

contact

complete

complete shipping information.

Address

Address correspondence to:

EG&G PRINCETON

EG&G

PRINCETON APPLIED RESEARCH

P.

O. Box

P.

O.

Box

Princeton,

Phone:

TELEX:

EQUIPMENT

the

factory

possible

to a

number

name

address.

telephone

purchase

by

Road

New Jersey

clearance

the factory

the

factory or the nearest factory

shipping

correspondence

2565

NJ

609/452-2111

609/452·2111

84 3409

84

3409

(609/452-2111)

to

discuss

to

discuss the problem.

to

expedite

to

expedite servicing

particular

to which

to

to repairs

instructions

any method

any method other than normal surface

Road,

OUTSIDE OF

08540

plug-in

to

send any

to

send any equipment back to the fac·

following

and

serial number.

(instrument

instrument

which instrument should

number

(in detail,

order

APPLIED

East of

of

equipment

or

the nearest

information.

APPLIED

REQUIRE

REQUIRE SERVICE

the problem.

including

numberfor

in

warranty).

(if

(if you wish to authorize ship·

the equipment

the equipment being returned

to:

or your

servicing

circuit

board.

circuit

board.

equipment

information.

user).

should

and

extension.

control

repair

you wish

other

than normal

RESEARCH

Route 1)

1)

U.S.A.—To

U.SA-

RESEARCH

To avoid delay in

being returned,

factory distributor

In

by localizing

by

to authorize

local

many

In

many cases it

localizing the

back

be returned.

be

settings).

charges

being

avoid

distributor

SERVICE

factory

cases

the

to

fac-

the

returned.

(does

ship-

surface

returned

delay in

please

for PROVIDED FOR HEREIN

it

for

WARRANTY

EG&G

PRINCETON

EG&G

PRINCETON APPLIED RESEARCH warrants each in-

strument

and workmanship.

and workmanship. Obligations under

limited to

limited to replacing, repairing

price,

price, at our option, of any instrument returned, freight

prepaid,

original purchaser,

original purchaser, provided prior authorization

has been

has been given by our authorized representative.

This Warranty shall

This Warranty shall not apply

spection shall

spection shall disclose to our satisfaction, has become defec·

tive or

tive

dent, alteration, negligence,

dent, alteration, negligence, improper installation

causes

causes beyond our control. Instruments manufactured by

others, and included In

others, and included in

covered by this Warranty

covered by

warranty which

warranty which is extended

restrictive.

restrictive. Certain subassemblies, accessories

ponents may

which

which case such exclusions are listed in the

Manual

Manual supplied with each instrument.

We

without

previously

previously purchased.

THERE ARE

THERE

DESCRIPTION

DESCRIPTION HEREIN. THIS WARRANTY IS

EXCLUDES

EXCLUDES ANY AND

SENTATIONS, EXPRESSED,

SENTATIONS, EXPRESSED, IMPLIED

CLUDING

ClUDING

ANY AND

ANY AND ALL OTHER OBLIGATIONS

EG&G

NOT LIMITED

NOT

NO PERSON,

NO

ASSUME FOR EG&G

ASSUME

ADDITIONAL OBLIGATION

PROVIDED

CUTED BY AN OFFICER

CUTED

RESEARCH.

of its manufacture

of

its manufacture

replacing,

at our

to our factory

to

olJr factory within ONE year

given by

unworkable due

or

unworkable due

beyond our control. Instruments

this

Certain

case such exclusions

supplied

reserve

the right to

reserve the right to make changes in design at any time

incurring anyobligation

incurring any obligation

purchased.

NO WARRANTIES

ARE

ANY

MERCHANTABILITY

MERCHANTABILITY AND FITNESS,

ALL OTHER

PRINCETON

PRINCETON APPLIED RESEARCH, INCLUDING, BUT

LIMITED

PERSON, FIRM

FOR

BY

APPLIED

Obligations

repairing

option, of any instrument

provided

our authorized representative.

not apply

disclose

or supplied

Warranty but carry the original manufacturer's

is extended

subassemblies,

be specifically

be

specifically excluded from

with each instrument.

NO WARRANTIES WHICH EXTEND BEYOND THE

HEREIN. THIS

AND ALL OTHER WARRANTIES

All

APPLIED

TO, SPECIAL

TO,

SPECIAL

FIRM OR CORPORATION

OR

PRINCETON APPLIED

EG&G

PRINCETON APPLIED RESEARCH ANY

HEREIN EXCEPT

AN

OFFICER

RESEARCH

to be free

to

be free from defects in material

under

giving

or

giving credit for the purchase

within

ONE year

prior

authorization

to

any

to

to our satisfaction,

to abuse, mishandling,

to

or

but carry

make changes

OBLIGATIONS OR

CORPORATION

any instrument which

abuse, mishandling, misuse, acci·

improper

supplied

with our equipment,

with

the original

to our customers

to

our customers and may be more

excluded

are listed

to install

to

WHICH EXTEND

WARRANTY

OTHER WARRANTIES

IMPLIED

AND FITNESS,

RESEARCH, INC_UDING,

OR CONSEQUENTIAL DAMAGES.

OR

CONSEQUENTIAL DAMAGES.

OR LIABILITY

OR

LIABILITY NOT EXPRESSLY

EXCEPT IN WRITING

OF EG&G PRINCETON

OF

EG&G PRINCETON APPLIED

warrants

from defects

this

Warranty

this

credit for

of delivery

of

instrument

has

installation

our equipment, are not

accessories

from this Warranty,

in the

in design

install same on

1

IS IN LIEU OF, AND

OR STATUTORY, IN-

OR

IS

IN

WRITING DULY

in material Q

Warranty shall

the

returned,

delivery

for

such

for

such return

which

become

misuse,

manufactured

manufacturer’s

and may

this

Warranty, in

Instruction

at any time

same on

BEYOND THE

IN

LIEU

OR REPRE-

OR

STATUTORY, IN·

AS WELL

AS

LIABILITIES OF

AUTHORIZED TO

RESEARCH ANY D

NO“ EXPRESSLY

DULY EXE-

each in-

shall

be

purchase

freight

to the

to

the

return

our

in-

our

defec-

acci-

or other

or

other

by

are

not

be more

or com-

or

com-

units

OF, AND

REPRE·

AS

WELL

AS

BUT

EXE-

APPLIED

be

in·

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in

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CHARACTERISTICS

Introduction

1:1

Specifications

1.2

INITIAL

2.1

2.2

2.3

OPERATING

3.1

3.2

3.3

CHECKS

Introduction Equipment Needed Procedure

INSTRUCTIONS

ntrodu

I

cti on Noise and Source Resistance Grounding

3.4 Signal Voltage and Gain Dc Zero Adjustment

3.5 Overload Fast Recovery

3.6

Low-Pass/High·Pass Filters

3.7 Single-Ended/Differential Operation

3.8 Common-Mode Rejection

3.9

Input

3.10

Maximum

Signal Consistent

3.11 Battery Operation, Test,

Rack Mounting

3.12

Input

3.13

3.14

Using a Signal Use

of

the Model 113 in Bio-Medical Applications

Transformer

DESCRIPTION

Block

4.'

Diagram Discussion

4.1A

Input

Coupling Circuit IV-1

4.1B Ground·Loop Suppression

Gain Determination

4.1C

4.10

' '

4.2

Rolloff

4.1

E Overload Fast-Recovery

4.1

F Power Supply

Circuit

Differential Preamplifier (A

4.2A

Output

4.2B

Power Supply

4.2C

Battery Test

4.2D

ALIGNMENT

Introduction

5.1 Preliminary

5.2

Equipment Needed

5.3 A2

5.4

5.5

5.6

5.7

5.8

5.9

TROUB

6.1

6.2

6.3

FET Common-Mode Rejection Adj. Gain Calibration

Low

Frequency

High Frequency

Battery Test Calibrate

LESHOOTI

Introduction

Procedure

Printed Circuit Soldering

Filter

Circuit

Descriptions

Amplifier

Circuit

PROCEDURE

Gate Source Zero Adj.

Rolloff

NG

SCHEMATICS

TABLE

and

Dc Zero Adjustments

with

and

Charging

Circuit

1)

(A2)

Compensation

OF CONTENTS

Linear Operation

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1-1 1-1 1-1

11-1 11·1 11·1 11-1

111-1 111-1 111-1 111-2

111-2 111-3 111-3 111-3 111-4 111-4 111·5 111-5 111·6

111-12

IV-l IV-l

IV-1

IV-' IV-2

IV-2 IV-2 IV-2 IV-3 IV-3 IV-3

V-l V-l V·l V·1 V·1 V-l

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1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9A 1-98 1-10 1-11 1-12A 1-128 1-13 1-14 1-15

1-16 11-17 11-18 11-19 11-20

V-1

V-l

VI-1

VI-l

Typical

Typical Noise Figure Contours

ypical Recovery

Typical Recovery

Filter

_P

LP

Filter

HP

Filter

_P/HP

LP/HP

Typical

Typical Common Mode Rejection Characteristics

Vlaximum

Maximum Differential

Vlodifying

Modifying

Frequency

Frequency Response

Noise

Figure

Noise Figure Contours

-'0

Schematic

Photographs

-'1

Photographs

Frequency

-'2A

Frequency Response

Noise

-'28

-'3

-20

Figure

Noise Figure Contours

Model

Phot0ofModelAM-2

Photo

Frequency

Frequency Response

Noise

Figure

Noise Figure Contours

Model190Schematic

Model 190 Schematic . . . . . . .

Photograph

B-H

Curve

B-H Curve & Waveform

Degaussing

Degaussing Waveforms . .

Ground-Loop

Solder

Solder Removal

Figure

Noise

Normalized

Filter

Normalized

Filter

Normalized

Common Mode

Differential

the

Response

Contours for

Model

of

Model

of

Response

Contours

AM-2

Schematic, Turns Ratio

AM-2

Schematic, Turns Ratio 1: 100

of

Model

Response

Contours for

Contours

Time vs

Time

Amplitude

AM-1

Transformer for

AM-l

Transformer

of Typical Model

of

AM-1

AM-l

Model

AM-1

Model

AM-l

of

AM-2

of

Low Frequency Rolloff

vs

Low

Phase

Rejection

Input

to Model 113

Input

to

Typical Model

Typical

for

Typical Model

Transformer

Typical

Typical Model AM-2 Transformer .

for Typical Model

for

Typical Model

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

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

Typical

Typical Model 190 Transformer

Typical

for

Typical Model 190-113 System

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

of Model

of

&

Waveform

Waveforms

Removal

Current

190 Transformer

Model 190 Transformer

. . . . . .

.

. .

Path

Current Path

byWicking .

by

Wicking

.

for

Frequency

Transfer Curve

Transfer

Transfer Curve

Transfer

Transfer Curve

Characteristics

Model 113

for

Model AM-2 Transformer

Model

the

the Model 113

113

Rolloff

Curve . .

Curve

. . . . . . . . .

with

Use

Model

1:100

AM-1

AM-l

the

with

the Model 113 Preamplifier

Transformer . . . . .

Transformer .

AM-1

Transformer

AM-l

Transformer

(Unmodified)

. . . .

.......

AM-2 Transformer

AM-2

Transformer

. . . . .

.....

190 Transformer

Model

190-113 System

.

. .

. . . . . . . .

Model

. . .

113

. .

.

. . .

.

. .

. . .

.

. .

Preamplifier

. .

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SAFETY NOTICE

‘l

(Read Before Operating Instrument)

A. INTRODUCTION

The Model 113

(“1oH__ao 3/\q'1 03'nv:>

applies has been supplied in a safe condition. This manual contains some information and warnings

that safe operation and to retain the instrument in a safe condition.

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have to

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The described apparatus has been designed for indoor use.

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Newly received apparatus should be inspected for

qo

sueew Aq

shipping damage. If any is noted, PARC and save the shipping container for inspection by the

A OZZ H.LIM

carrier.

file

a claim

NOACIEINHHJ.

H05 LEIS SlJ.l:IICIEIE)\1WVCI-EI8 AVW

NI CIEISIHQSEICI

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THE PROTECTIVE GROUNDING COULD

RENDERED INEFFECTIVE PARATUS. DAMAGED APPARATUS SHOULD

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As defined in IEC Publication 348 (Safety Require-

pue

(A139) eeqqo/\ /vqoq-enxa Meqes

ments

Model 113, when operated from the ac line, is Class I apparatus, that is, apparatus that depends on connection ground for equipment and operator safety. Before any

other

the

protective connection is made via the earth ground prong cord plug shall

provided

EIAVH

The protective action must not

use

of ductor, by use

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to

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instruction manual

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patible with the available power sockets, the plug

or

power cord should be replaced

ed

type

of

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OR

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WISE A SAFETY HAZARD FROM ELECTRICAL SHOCK, WHICH COULD RESULT

DEATH, MIGHT RESULT.

When operated from

line cord disconnected, the Model considered Class in which protection against electric shock relies on supply at safety extra-low voltage (SELV) and in which voltages higher than those

BIA

em

sum,

'/leqes

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01,

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the line cord disconnected, the voltage levels

inside the Model

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3H.I. =|o NOILOEINNOOSICI so

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WSINVHOEIW

113

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CFIHOHS ll .LVHJ. GNV 3:IVSN 38

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or

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Before plugging in the power cord, make sure that

AJ.EI=IVS

SVH

the instrument is set for operation from the

(]‘lOHS

voltage

CIEIEDVWVCI

-dv

38

CI'IOQ

cables.

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the ac power supply.

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CAUTION!

THE APPRATUS DESCRIBED

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110

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Figure 1. POWER CORD PLUG WITH POLARITY INDICATIONS

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POWER CORD

POWER

VOLTAGE

VOLTAGE SETTING. Depending on the switch

position,

position, either

the

the switch) will be visible

operation

operation from a line voltage

ac,

ac, the switch should

For

For operation from a line voltage

230 V

230

E. LINE

E.

The Model

The Model 113 line fuse is located inside the in-

strument.

strument. To check or replace the fuse, it is first

necessary

shield

shield mounted on the inside

The

The fuse should be a slow-blow type rated at either

either 1/16 A (115 V Operation) or 1/32 A (230 V sion

operation).

operation). The voltage rating should higher in the case

higher in the Case 01 115 V Operation and 250 V or characteristics

higher in the case

hiélherththe eeee Qt 230V0DeFeti0i1-9h|YeBU$$

MDL

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ARD FROM ELECTRICAL SHOCK WHICH COULD

REsui_T |N INJURY OR DEATH, |)|$(;()Ni\|EcT operating

RESULT

THE PQWER CORD BEFQRE REM()V|NG QR |i\|- one

THE POWER CORD BEFORE REMOVING

$"i'Ai_i_|N(3 A FU$E_ i3E(;Ati$E QF Ti-ii; PQTEN- general use.

STALLING A

T|A|_ HAZARD, Ti-ii; FUSE Si-|()U|_[) BE CHECKED considered

TIAL HAZARD, THE

AND/OR

ANDIOR CHANGED

"|'E(3i-i|\ii(3iAN ()Ni_Y_ plifiers

TECHNICIAN ONLY.

A prooeoure for geinino eooeee to the fuse operating

A procedure for gaining access to the fuse

follows.

(1) Remove the top oover_ it is eeoureo by e general,

(1)

(2)

(3) After oheokino eno, it eppropriete, ohenging any

(3)

F.

In

the

In

the past few years, safety

plications

plications has been a matter

to

equipment.

equipment. It has long been known that electrical

currents

currents passing through the heart can interfere

CORD WHEN CHANGING THE LINE

either “115”

switch)

from

switch

the

operation

“23O”

ac,

V ac,

"230"

LINE FUSE

FUSE failure,

To

mounted

fuse

should be a

1/16 A

or

equivalent fuse should be used.

AVOID

AVOID THE POSSIBILITY OF A SAFETY HAZ-

IN

CHANGED

Remove the top cover. It is secured by a

single screw

Single screw on the bottom surface

oover “tip” et the reer of the inetrument_ with agination

"lip"

cover

screw removed,

the

the screw removed, the cover simply slides

back

to

back to where

ment_ The

ment.

Remove

Remove the shield attached to the inside

rear panel. This shield is secured by

the rear panel. This shield is secured by a

the

einoie eorew at its oenter_ with the ehieio ed

Single screw at its center. With the shield

removeo, the iuee hoioer, iooeteo oireotiy unnecessary risk

removed, the fuse holder, located directly

above

above the Line Voltage Selector switch,

becomes accessible.

becomes accessible. After checking and,

fuse, remount

the

the fuse, remount the shield and top cover

before

before plugging in the line cord and operating

the inetrument_ 113

the instrument.

OF THE MODEL

USE

USE OF THE MODEL 113 IN

BIO-MEDICAL

BIO·MEDICAL APPLICATIONS

past

both

the

both the users and suppliers

passing

WHEN CHANGING

SETTING.

"115"

will

a line

should be set

from

should show. use

should show.

113

line

check

remove

to

remove the top cover and also the

be

on

Depend'ng

(both

“230”

or

"230"

visible

voltage

be

a

line

fuse

replace

or

the

(both

to

the

to

the operator. For

of

so

set so that "115" shows.

that

voltage

is

located inside

the

cover and also

top

inside

of

slow-blow

(115

V operation) or 1/32 A

The voltage

THE

POSSIBILITY o|= A SAFETY HAZ-

INJURY

FUSE.

on

at

where it

shield

the

Line Voltage

the

plugging

rating should

of

115 V operation and

of

230

V operation. Only a

Sheuld be

thee

wA|=tNiN(;i supply

WARNING!

OR

DEATH, DISCONNECT

BECAUSE OF THE

FUSE

SHOULD

BY

A

BY

the

the rear

can

it

can

QUALIFIED SERVICE

A QUALIFIED SERVICE

bottom surface

of

the instrument. With

cover simply slides ie9eTded

the

freed from

be

freed from the instru-

attached

if

appropriate, changing

shield

the

in

line

the

cord

113 IN

THE LINE

on

are

switch research has shown

the

printed

printed on

operator.

nominally

“115”

of

115 V

115

shows.

nominally

the

fuse,

rear panel.

the

the rear panel.

type

be

USed-

BE

CHECKED

to the

first

it is

rated

(230

125 V

125

V or

250 V or

BUSS

OR

POTEN-

ofthetop-

of

the top-

instru-

the

inside

Selector switch, he evetdeti

and

cover

top

operating

1

APPLICATIONS

few years,

has been

users

It

has

safety in bio-medical

a matter

and suppliers

long

been

through

known

the

in

of

heart

bio-medical

growing

growing concern

of

concern

electronics

electrical

that

can interfere these

with

normal heart

with normal heart functioning. However, recent research has shown that danger exists at far lower

on

For a consequence

V

in- high input

the

at

V

or

IN-

of

1

ap-

current

current levels than was previously suspected. As a consequence

after a careful analysis

EG&G

feelsthat it cannot recommend the Model 113for

feels that it use

patients. In

patients.

conditions

conditions failure, or excessive common-mode input, the high input impedance

and

and potentially dangerous currents could flow

through the

through the subject.

However,

However, the reader should not get the impression that the Model 113 is in any way a dangerous

instrument

instrument characteristics that necessitate the adviSOry

against

against the instrument's use in bio-medical

plications with

plications with humans are common

preamplifiers as

preamplifiers as well. supply voltages, capability for internal battery power with complete independence

power with

and extremely high input impedance under normal operating conditions, the Model 113 is probably one general use. For all practical purposes, considered mum internal supply voltages applied

mum

plifiers are only

can

can only appear at the input under very specific operating conditions, and then generally for only a

few

few milliseconds. A person inadvertently touching

the

the input under these conditions would, in general, not even be aware that there was any voltage there at all and by no stretch

Vettege

agination could the operator

regarded

The preamplifier can be used in biological appli-

cations

cations involving animal subjects. However,

application is one in which skin resistance is

eppiieeiipn

a

greatly reduced

dreetivredueed prbvpeeeed.tne

ed

unnecessary risk to the experimental animal is be avoided.

(1) Turn

(1)

(2)

(2) set

(3) Do

(3)

It

It may prove helpful

these precautions. By understanding them, the

levels

Princeton

Princeton Applied Research Corporation

cannot recommend the Model 113 for

in applications

in

applications involving human subjects or

certain situations

In

certain situations involving specific

of

excessive

or

impedance of the

potentially

subject.

the

that

the

to

instrument’s use

the

voltages,

epinpieie independence of

extremely

conditions,

of the

of

the safest preamplifiers available for

to

internei

are

only

appear at

only

conditions,

milliseconds.

input

under

not even

there at

could

as

being

ee hethg

preamplifier

involving animal subjects.

ie pne in whieh ekin reeieienee is

to

observe the following recommendations

observe the

the

Turn the amplifier power on BEFORE making

connections

any connections Set the Input Coupling switches

the

thput

113

the experimental animal.

the the

the GND settings until after the connections

are

Do

the

the instrument is connected

mental

mental animal.

may

GND

to

GND before making any connections

to

experimental animal.

GND

completed.

not

turn

not turn the power switch on

instrument is connected

animal.

prove

precautions.

functioning.

dangerexists

that

was previously

than

of this

of

increased

this

increased awareness, and

of

Applied

involving human

grounding,

grounding, internal component

However,

at

recent

far

lower

suspected. As

awareness,

the Model 113 design,

the Model 113 deSign,

Research

Corporation

and

subjects

involving

specific

internal component

common-mode input,

of

Model

the Model

dangerous currents

reader

Model

use in ordinary applications.

use in ordinary applications. Those

should not

113

is

in

any wayadangerous

that necessitate

are

humans

well. In

capability

high input impedance under

safest

For

all practical

be

completely harmless.

be

completely harmless. The maxi-

Supply

12 V. Even

i

±

12

the

A person

these

be aware

ett ehd hY he etfeteh Qt the im-

the

operator

in

ih

can

or

bypassed, the operator is advis-

following

to

the

amplifier

Ceuhtthg ewttehee 01 the Medet

before

settings

power

the

helpful to consider the reason for

By understanding

common

fact,

In

with

fact, with

for

Model

the

preamplifiers

vpitepee

V.

Even

input

and

then

inadvertently

conditions

that there

of

any danger.

ehY dehgeh

be used in

recommendations if

experimental animal

power

to

on

experimental animal.

the

the experimental animal.

making

Do

after

until

switch

to

consider the reason for

113

could fail

113

could fail

flow

impres-

get

could

the

Those

advisory

the

in

bio-medical

most

to

its

low

its

low internal

other

most other

internal

internal battery

of

the ac line,

the ep

113

is

line.

normal

probably

available

purposes,

eppiied tp the em-

these low voltages

these

under

can be

it

can be

The

maxi-

to

the am-

voltages

low

very specific

generallyforonlya

touching

would,

was

any

of

the im-

instrument

the

the instrument be

biological appli-

However,

pperetprie

if

advis-

isto

BEFORE

any

connections to

not

not transfer from

the

on

to the

to

making

of

the Model

transfer

from

connections

while

off

or

off

while

experi-

the experi-

them,

or

the

ap-

for

in

be

the

to

the

3

if

1

i

operator may be better able

electrical

only

but where

(1)

monitoring

where the input

other

of experimental animals, not

amplifier

preamplifiers are used as well. Turn-On Transients When the

cuits

amplifier

do not instantly assume

operating state. Instead, a

to

safely carry out

is the Model

is first turned on, all cir-

their

quiescent

finite

time quired for the common-mode loop amplifier to

ing point. During

'|euu0s1ed

A12-112s

from a few

s11

set the input stages

001/ues pe111|enb

|11un

milliseconds

eq10u

pasn

to

their proper operat-

this

interval (which varies

pe1111a/\

Aq

to

p|n0L1s

a second

sn1e1edde

ueeq seq

depending on the source impedance), the source-gate or

uvdsuen we/\es O1

the

transistor

pedance, but instead appears as a low im-

pedance from the input

e6e101s

‘s1ueu1e1nseeu1

pe6u0|01d

the

output

(2)

Power Transformer

junction

other

is forward-biased.

‘su0111pu00

01 pe10e[qns

of

the common-mode amplifier.

pepue1u1

of

one input transistor

D9109[q"$

does not

exhibit

a|qe10/\e1un

of

the instrument

0111

111101100

‘eewep e|q1s1/\

'sesse11s

In

ueaq $91-| (v)

this

a high im-

1epun 1210/\es 012

uaeq

se|_| (9) 1eu11e

01

s|1e:|

s/v\0q3

The power transformer in the Model very high quality and is unlikely to fail during

life

of

-u1exe101‘11pe11ed1111eq

e/\11e1ed0u1

-u11 uaaq

the

'u0!1B19d0 pepua1u1un

possibility must and

if

seu

complete

pep;/101d

u0110e101d

the instrument. Nevertheless, the of

spew aq ||eus sn1e1edde

be considered. Should a short develop,

the

instrument were being used

pun016

or

mon in many

-“IWHONHV GNV

dangerous situation would exist.

(3)

Internal Component Failure

01/(|e>11|s1u0110e101d eul

Aue

such a failure, however remote,

1111120 01

improper ground returns (com-

eul

1€u1

buildings

The input transistors junction-type

e1n1e1ed111e11ue1qu1e 011112111

eq

though they

0111

/§|u0

5U!1Ul'1OLU

eq

Aue

-1eq

“GUM 9119'“

‘(A1010121

resistance when properly biased,

>10e1)

tance can drop

ueo

ing current or bias is

a/ueu

ing range

ueu/v\ sse|

biased diode

the source or the drain. There are several

's1ue111e11nbe1

1|

10u

9 MUD 4° u°!1dw"Su°°

‘£3,912

field-effect

exhibit

111011

0111

>10e1

e

to

911

seop

sufficiently

ue/10

pue

junction

u!

|ep0|/\| 0111 ‘pe1e1ad0

‘eu||

possible internal component failures which, though unlikely, could bring about tion. Should

fier

would be connected through a low im-

pedance

s1su0g1e01|dde1eu10||eu1esn

L111/v\ esn

u011e10d109

L|5HOL|1

supply.

101

ue/\e

911

‘1eu1pez1seL1d1ua

it

occur, the input

directly

-u011e/\1ese1

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qomeseg

to

0111

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:sn1e1edde

1su1e6e

pemoes

0111

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s1 11 10/\eueu/1/1

A|e>11|

and installations), a

33333313

$133530 -H

of

the Model

01O<,9L

an

paseuomd

10

a few

out

to

-

the

1n0u11/v\

pue1u11100e1

4°

95°91

transistors.

6u1eq

extremely high input

uoueq e

ohms

u011e|11ue/1

of

give a simple forward

0e

e111

from the gate

eq

u0 pe1e1ad0

if

their

the normal operat-

u1011

J9M°d 9 WM

N0|-|-V'||1-N3/\

of

instrument's

pepua1u1u00e1

s11‘s10e[qns

u01e0u11d 91993

eq p|n0us

0111

1u1e11su00 JO Q EH Iapow

ueo

their

pe1e1ed0

this

the ampli-

10u

11

'a0ueped -110

-11111ndugau11a/v\0|Aqe1eu1pue‘s11n01101ndu1

ehll

1001010

'su11

u0110npu00

/\ 1 s1 911

squad

-UOLULUOO

01 10111101112010 eL|1101ndu1

/v\0|

|ep0|/\|

‘su011e01110eds

0111

1ndu|

“uo u1n1,,

0141101111111

epow-u0111u10Q

s10/\e|

eu1

011112

10116114

1ndu1

pelels

ug

0/\1sse0x3

epow

(4)

Excessive Common-Mode Input

113,

As stated in the specifications, the common-

mode input Higher levels at the input input circuits, and thereby lower the pedance.

is

re-

Again, it should be emphasized that, even though

EG&G Princeton Applied Research Corporation

does

not recommend the Model

human subjects,

or

more

uong 10/v\0d s,1ueu1n11su1

state,

to

(3)

(1)

113

is

of

‘e|d -|v 's101s1sue11

recommended

-LU! /v\0| e u6n01u1

1ndu1

10

-g|dwe

-!r>u<>vs!u11r\<>qv

‘uogu/v\ se1n|1e1

p1e/v\101a|du11s

-1e1ed0

-s1se1 110111

1ndug 115111

012 911

eu1

G. VENTILATION

With a power consumption operated from the ac line, and even less when battery operated, the Model 113 does not have any special operated on a bench or kits can constraint being that the ambient temperature

in the range of 15°C to

010111

010126

|e1u10u 011110

ventilation

11eu111

‘pese1q

be

purchased from the factory), the only

A|au1e11xe

|ep0W

pue

‘pe11ed

with

in-

0111 Aq

113

W1“!

s1!>1

resis-

operat-

|e10eds

A101

to

either

'9

condi-

1

power

uewnu

seop

‘ugev

sv

(11)

are

Al-

H.

DEFECTS AND ABNORMAL

STRESSES

‘(su011e||e1su1

12

-11100)

Whenever it is likely that the protection provided

-ug L|1!M

by the connection

‘d0|c-map

paired, the apparatus shall be made inoperative

‘e10111a1

and secured against any unintended operation.

0111 ‘sse|eu11e/\eN

The protection is likely

fiuunp

ple, the apparatus:

'

(1) (2)

'1s1xe

su1n1a1

Bugeq

pesn

110us e p|n0L13

10/\a/v\0u

112101/(|e>11|un

Shows visible damage,

Fails

to

ualmdwe apouwowwoo

O - '

(3)

Has been subjected

11ueu1n11sug

-LUI

101s1sue11 1ndug auo

0111

-121:-ado 1ad01d 110111

1e111|du1e d00|

under unfavorable conditions,

(4)

‘a1e1s

/v\0|

116111

se sfmleeiide

e

e 11q1uxe

Has been subjected

u|

S!Lll

stresses.

‘(eouepadwg e01n0s

Such apparatus should not be used until

e10u1

has been verified by qualified service personnel.

sa->112/1

-e1

1ue0se1nb

"||a/v\

‘QLL

10u

1n0 A1120 A|a1es 01 e|qe

puooas

10

uogum)

s1 011111

‘u0

112

se pesn

|ap0|/1|

‘s|eu11ue

e11u11

11:->u1eu1nsse A|1ue1su1

peu1n1

01.11

|e1ue11111edxe10

limit

of

the Model 113 is 1 V rms.

"turn

on"

low

conduction

of

the preamplifier to protect the

113

for use

its

use in all other

01 A|10e11p

au1

without

Buuq

reservation.

pe10auu00

eu1 ‘1n000

PIHOO ‘K|<->>1!|l1r\

eq

11 p|n0u3

1ueu0dw00 |eu1e1u1

-u1e1p

eu1u101;

e e/116

swuo

A|1ad01d

100110-p|e11

10

9L|1

a1n|1e5

p|n0/v\

pue

u0110un[ ep01p

A|1ue10111ns a6ue1

01

1n0 s1

requirements. It can be

M012

ue

s101s1sue11

s6ugp|1nq

10

eu1

of

segq

d01p

01

in

a rack (rack

ueu/v\ a0ue1s1sa1

11q1uxa

ed/(1-u0110un[

45

°C.

1uau0dw0Q

u011en11s

pun016 1ed01du11

e1a/v\1ua11|n11su1

to

earth ground has been im-

'pa1ep1su00

‘e1n|1e1e

'1ue1un11su1

eu1u|JewJ0JSueJU9M0d

perform the intended measurements,

e

01n

1

-pesegq-p1e/v\101

01

e

|e/\1a1u1

01sa5e1s

apomu-u0111u100

e ‘pee1su|

1s111

012 s1e111|du1ee1d

s1 1e111|du1e 1ndu1

u0ns

0111

to

be impaired if, for exam-

pue

s1

'

Mllenb 116111

1eu1101sue1_L

em ;0 mdmo em

d

to

ug 0

111101

pee1sL1|1|

10u

sa0p'101s1sue11

to

s1 101110

10 u0110un[

u0

0111

spu00es1||1u1

6u11nq

S!l41

1ndu1 0'41

01.11101

'e1e1s 6u11e1ed0

1e111|dLue

sq

S1UG!SUBJ]_ UQ-Ulni (1)

5ug1011u0u1 |e01110a|a

1a11aq

"A|ddns

applications

asueped

p|n0/v\

u5r\<>u1

e|q1ss0d

e01n0s

only 5 watts when

pasegq

101ue11n0

ueo

e0ue1

A0111 u6n0u1

1ndu1

|eu1a1u|

sn01e6uep

Auew

u1

10 e1e|d11100

011111

eq 1snu1

A11|1q1ss0d

10

10 0111 0111

1e/v\0d

prolonged storage

eoue

1nqJ‘c-Jouegad

severe transport

au1 10

0126-e01n0s

ugpuedap

M8}

e 111011

'1u10d 6u1

les

pe11nb

10u op

eu1

1eu10

eu1

01011/v\

aq A2111

paths

input

1011

-u011

0111

6ug 6u1

mounting

aui

(9)

u0u1

pue

A10/1

Gui

(3)

d

0

0111

its

safety

01

s11n0

ueu/1/1

a1eu/v\

A|u0

101e1ed0

im-

with

be

1nq

is

’

1

W

L'\

SECTION

CHARACTERISTICS

1.1

INTRODUCTION

The Model 113 Low-Noise Preamplifier provides high gain, low

noise

amplification kHz. Adjustable high and bandwidth

to

be coupling switches, operation. Calibrated gain X104

in a 1·2-5 sequence, and

provides

The

unit

x1

to

x2.5 range expansion.

may

be

powered either own batteries. The nickel-cadmium batteries recharge automatically

during line operation.

Other features include special

circuitry currents, front-panel tion

screwdriver controls,

The Model 113 other Princeton

is Applied

ments.

1.2 SPECIFICATIONS

(1) INPUTS

=(>|

009$

unwul ooz

01

Two

channels, provide tial operation. I

for

1(00l

of

wideband signals

low

frequency reduced. allow

Two

either

differential

is

switch selectable

an

from

an

overload fast-recovery switch,

that

reduces the effects

dc

zeroing and common mode rejec-

and

battery

well suited

for

Research signal processing instru-

40 ww) apvw

each

with

a three position switch

ac

or

dc coupled, single-ended

nput

SW95)

connectors

A

.SwJ

O1 OLJO

from

dc

to

300

rolloffs

inputs,

allow the

with

individual

or

single-ended

from

x10

to

uncalibrated gain vernier

the

ac

line

or

from

its

of

ground-loop

test provisions.

use

as

QPOW

are

BNC

L Iepow

a preamplifier

'/\LU

l9!1U919H!Cl

.Aw

or

I9!1U919H!C|

type

uowwoc)

09$

differen.

for

(O)

to

(Q)

(E)

I

(2)

INPUT

(a)

(b) Dc coupled: 1 gigohm, shunted

(3)

MAXIMUM

(a)

l

(4)

-ua1aH!p

01

-H.l1SU[5U!SS800.Id

J0;

IMPEDANCE

Ac

coupled: through

with

100 megohms and 15 pF in parallel.

INPUT

WITHOUT

Dc coupled: Common-Mode,

(b)

tial, ±7.5

Ac 200

V.

coupled: coupling capacitors can

V. Transients capacitors cannot exceed dc coupled operation limits.

MAXIMUM

LINEAR

(a)

Common

Differential

(b)

mY.

L|O1!/V\S

(c)

Differential ±50

J9[}!|dLU€G.lC|

INPUT

OPERATION

mode: 1 V rms.

QN9

"ad/\1

pepua-a|6ugs

JO

UO[l[SOd

mY.

smlaauuoo

am

mode (gains

aanp,

mode (gains

|eu6!s

asn

se

2

0.1

which

SIGNAL

(see

Subsection 3.10)

‘pa|dn0o

qlg/v\

e

SNO|_W3H|33dS

qzueasag

palms

Jo;

J.1F,

shunted

by

15

DAMAGE

±10

V;

pass

through coupling

CONSISTENT

'uo!1e1ed0

1ndu|

of

10

to

10;

oe

10

op

’s|auueqo

qoee

of

200

through 10

paqddv

sg gll

||a/v\

to

ground

pF.

Differen-

withstand

WITH

|eg1

100):

±500

8p!/\O.lC|

0/v\_|_

S_LdNl

uolaauud

|apo|/\|

k):

(L)

Z1

'S1Ll9LLl

J9L|1O

aq_|_

J

*

w

~

LNELLSISNOD

H_LlN\

UO!19.l9dO

/

6ug|dno:>

pue1sq1g/v\

-umeggq

pun01

(UL-8

pa|dnoo

q

5no1

ueo

5/\

El'E)\7’V\|V(]

Wauejed

palunqs

01

ugugggqns

"lVND|S

paaoxa

op

ssed

q

agq/v\

[41

smlpedeo

'apoW-uowwog

Q[_:|:

.LOH_LlN\_LdN|

pa1unqSluJqO5!5L

dd gt

U!

1'9

‘511

NO|_LVH3dO

995)

.LdNI

louueo

s1uagsue1_|_

6u!|dn0a

:pa|dn0:>

'/\

:pa|dno:>

zpaldnoa

Swqoaw

pug

q6noJq1 :pa|dnoo

EIf)NV(]3dV\l|

HVBNH

INHINIXVI/\l

'$1!W!l

s101goede:>

QQZ

'/\

av

9'L¥'|9!1

sq

INHINIXVW

(17)

(q)

(9)

(8)

90

Lm,“

Om

(e)

av

_LdNl

(Z)

SQILSIHHLQVHVHO

NOLLOHS

I

\-1

'suogsg/\oJd

apow

-i)9[9J

dOO|-pUI'\O.l5

‘qolg/v\s

a61eq:>e1

s13

.l8[UJ9A

01 QLX

papue-e|5ugs

|Bl"|p[/\!pU[

aql

QQ8

‘uge

Ma/\o0aJ-1se;

saualleq

10

LUOJ}

uge

11.101;

/v\0||e

01 op u.|o1;s|eu6gs

qgq

1sa1

uowwoo

s1oaHa

;0

oe

au!|

pe1e1qg|eoun

e|qe1oa|as

|B[1U9J9H.[p

JO

'S1dU[

s;;0||o1

sap!/\01d

Malleq

Bugmaz

pue

seonpeu

aql

peope/\0

'UO|1€J8dO

.

wngwpeo-|a>|9gu

.l8q1[9

LUOJ}

eql

'u0gsuedxa

pue

ue

qslg/v\s

Jaqlga

ON\_]_

Aouanbaq

pueqep!/v\

1ag,u|dweeJd

pue

ue

’a0uenbes

sg uge

'pa0npc->1

/v\o|

40

as!o|\|-/v\o"|

's|011u00

0p

apn|oug

au||

pe1e/vxod

95UBJ

/v\0||e

pue

J9A[.lpN\9JI)S

|aued-1u01;

Angnrugra

12141

Buunp

.

aq_|_

aq

ggx

p91EJC|[|BQ

'saqo1g/v\s

eq

e|qe1sn[pv

qgq

uogleogmdwe

NO|J.I)ClOHJ.N|

'S1U€-LLIHO

|eg0eds

samlea;

A||eo|1eLu01ne

.

'sag1e11eq

lgun

Aew

S9p[AO.|d

Lx

01

ug

e

9-Z-L

'uog1e1ed0

5ug|dnoo

L|1p[/V\pUBq

O1

asgou

|epo|/\|

gll

uo!1

Jaqlg

u/v\0

eq_|_

tglx

'z|_|>|

/v\0|

eq_|_

L‘

L

(5) COMMON

(5) COMMON MODE REJECTION

MODE

REJECTION

(11)

OUTPUT

VOLTAGE

FREQUENCY

dc

100

(6) GA|N

(6)

(7)

(B)

(8)

Hz

100

to

100 Hz

1 kHz

kHz 80 dB

10

kHz

10

kHz 60

kHz

GAIN

x10

to

x10

to

calibrated

calibrated gains

calibrate position.

calibrate position. Gain vernier provides uncalibrated

gain range expansion

gain F8099 eXl3>an$i0n

FREQUENCY

FREQUENCY RESPONSE

Rolloff frequencies

Rolloff

switch markings

switch markings indicate

rolloff curve.

roll

off

(a)

Low

(8) I-OW FFBQUBHCVI

kHz

(b) High Frequency:

(b) High Frequency: 3 Hz

sequence.

NOISE

FOR

GAIN

>

FOR

GAIN>

120

dB

120 dB (min)

100

BOdB 60

x104

calibrated gain settings. Accuracy of

X104

calibrated gain settings. Accuracy

gains

is i2% when gain

is

Gain

RESPONSE

frequencies

indicate 3

Rolloffs

curve.

Rolloffs

Frequency:

positions

positions in 1-3-10 sequence.

in

200 FOR GAIN < 200

200

(min)

dB

dB 40 dB

dB

±2% when gain vernier

vernier

of

up

to

x2.5

01 LID ‘£0

are switch

are

are selectable as

are

1-3-10 sequence.

X2-5(fT\ilmUm)-

switch selectable.

dB point of 6 dB/octave

~

dB

selectable

dc

position

d¢ P050100

3 Hz to

FOR

GAIN

100 dB

100 dB (min)

80

BO

60 dB

60 dB 40 dB

vernier

provides

selectable.

point

300

to

300

uncalibrated

(minimum).

Front

of

6 dB/octave

follows:

as

follows:

and

0.03 Hz

and 0-03 HZ ‘E0 I recharge automatically

kHz

kHz in 1-3-10

volts

< 200

(min)

dB

of

is in the (14)

is

in the

Front

panel each of the -[W0 in-[ema|

panel

to

in

1-3-10

10

10 volts pk-pk

(12)

OUTPUT

(12)

600

600 ohms.

(13)

OVERLOAD

(13)

OVERLOAD

Resets

toggle.

toggle. data.

data-

P()\/\/ER REQU|RE|\/|E|\|TS

(14) POWER

(a) Rechargeable

(a)

(b) AC |ine

(b)

(15)

DIMENSIONS

(15) DIMENSIONS

8.6" W

B.6"

cm).

pk-pk ahead of 600 ohms.

IMPEDANCE

ohms.

immediately

Figure

See

Figure

REQUIREMENTS

Rechargeable nickel-cadmium batteries provide

approximately

approximately 30 hours operation between

charges.

charges. A front-panel, three-position, spring-

loaded

toggle

loaded toggle switch each

of

the

Ac

ac, 50-60

ac, recharge automatically

ac power line_

ac

W x

Operation; 195-125 \/ ac

line operation: 105-125 V

50-60 Hz, 5 watts. I nternal batteries

power line.

x 4.1" H x11.3"

4.1"

ahead

of

600 ohms.

RECOVERY

with spring-loaded

with

spring-loaded front-panel

Ill-2 for characteristic recovery

111-2

for

characteristic recovery

nickel-cadmium batteries provide

hours

30

front-panel,

A

switch and test lamp

and

two

internal batteries.

Hz, 5

H x

watts. Internal

D (21.8 cm

11.3"

D (21.B cm x 10.4 cm x 2B.7

operation bet\/veen

three-position, spring-

test lamp

bat-(erie5_

permit

or 210-259 \/

ac

or

batteries

while unit

while

is connected

unit

is

x

10.4

connected

front-panel

test

210-250 V

will

to

cm x 28.7

of

to

At

10 Hz

figure

source impedance,

source impedance, noise figure

See Section

See

contours.

(9) DC DRIFT

(9) DC

(a) Referred

(a)

(b) Referred

(bl Referred

DISTORTION

(10)

DISTORTION

(10)

Typicaldistortion

Typical

with

Hz

10

is

0.3

is

0_3

Section

DRIFT

Referred

"IlV/C

‘I-IV/QC Or

ambient

ambient temperature. A control

control provides

than 1

than 1 mv/24

perature.

peratum

distortion

a 2 megohm source impedance, noise

with

a 2 megohm source impedance, noise

maximum. At 1 kHz

dB

dB maximum_

noise figure

Ill for

further

III

for

further

to input (dc coupling):

to

input

or

less

than

I688 than

temperature. A

provides

to

output:

to Output: less than 1 mv/CC’

mV/24

less

is

less

At

discussion

discussion and noise figure

(dc coupling):

/1V/24

10

IlV/24

10

for

dc

zeroing.

for dc Zeroing.

less

hours at constant ambient tem-

hours at Constant ambmnt

than 0.01%.

with

1 kHz

with

is

0.2 dB

is

0.2 dB maximum_

hours at constant

front

panel screwdriver AM-1 has a 3 dB

front

panel screwdriver

than 1

a 1

a 1 megohm

maximum.

noise figure

and

maximum

mV/C,

megohm

10

or

less

or less

tern‘ three dB

10

(16) WEIGHT

(16)

WEIGHT

4 pounds

4 pounds (1.B kg).

(17) ACCESSORIES

If

the

If

the source impedance

low-noise

low-noise performance

AM-1,

AM-1, AM-2,

AM-1

the

the AM-1 and the AM-2

AM-1

has

at 10 ohms

at 10 ohms source impedance,

bandwidth of

bandwidth source. The Model 190

source.

three dB bandwidth

1 ohm source. See Section

1 ohm source.

regarding

regarding these transformers.

Flanges

two units side by

two

units side by side in a

Subsection III-12 for

Subsection

flanges.

kg).

(1.8

source

impedance

performance will be

AM-2,

or 190 input transformer

or

190

and the

a 3 dB bandwidth

of

The

AM-2 have

bandwidth Qf fr()m 1 kHz

source

from

Model

190 has a

bandwidth is

See

these transformers.

are available

are

available

111-12

for

is less than 100 ohms, best

is

less

than 100 ohms, best

will

input

have

impedance,

1 kHz to

1 kHz

has

from

is

from

Section

for mounting on a single

for

mounting

side in a

the part numbers

obtained

be

obtained

transformer

1:100

1: 100 turns ratios. The

of

from

and

and the

150

to

150

1:10:100 turns

a 1: 1 0: 1

Hz to

0.25

0.25 Hz

for further details

lll

III

for

19" relay rack.

19"

if a

if

is

turns

1 kHz

AM-2 has

the AM-2

kHz with

kHz

with

00

turns ratio. The

500

to

500

further

on a single

relay rack.

Model

a Model

used. Both

ratios. The

to 10 kHz

to

10 kHz

has

ohm

a 1

a 1 ohm

ratio. The

Hz with a

Hz

with

details

unit or

unit

or

See

of

these

of

these

a

I-2

1-2

J

L'll

2.1

INTRODUCTION

The

following performance procedure ment

for shipping damage (any carrier and but

before using encountered factory

or

procedure

checking

of

is

the

should be performed

to

Princeton Applied Research

it

experimentally. Should

in carrying

one

of

its representatives.

out

2.2 EQUIPMENT NEEDED

(1) General

(2) Signal

sL1! 1eq1

sinewave

-19d

luawmlsug

2.3 PROCEDURE

'uog1gs0d

(1) Make sure

indicating

u101;

A|qe1ap!su0:>

Vac).

8L{1

'.l9A8N\O|-| '/\LLl

p|n0qs

(2) Plug

into

'>|d->|d

101Lu0|/\|

(3) Press

(4) Push

sawp,

aql

then

JO1!u0W_>|d_>|d

light for

(5) Make

eq

/\ L

(a) Gain:

sumas 1ndu|

apn1!|du1e

asn)

3l.|l

'>|d->|d

pue

'>|oe[

purpose

generator

ems A|qeu0sea1

at

(1no) :|:]Q

1nd1n0

the

line

the

power receptacle.

/\ L aq p|n0qs

'>|d->|d /\ L ‘z|_|>| L 01 JO1BJ8U95

the

ua1 aq p|n0qs

push

both

the

p|noqs

until

uaa/v\1aq

.|01e1aua6

'>|oe[

A

3N9

1nd1n0 aql

L

'ZH>|

'z|-L L

laboratory oscilloscope.

capable

1 Hz,

aql 4|

aq ueo auo ’pa1eogpug

100

Hz, and 1 kHz.

's>|oaqo Leglgug

aql 01 L|C)1!N\S J9MOC|

the

rear-panel slide switch

the

line voltage

Me/\ uea

Q9 A||e0gdA1

9l.|1 fu011nq

cord

apn1!|dwe Leugs

Me/\00a1

into

the

La/\a| 1nd1no sq), f1nd1no

power switch so

spring-loaded

it

to

,ZH

La/\a| 1n

the

battery

right.

positions.

following initial

La/\a| 1nd1n0

x10;

the

switch

aqa,

Cal.: fully counterclockwise

"clicks").

A:>ua1s|suoo

|eu5gs aql

;)|\|g lndug

IZH

L

01 1o1e1aua6

01 ado0s0||!:)s0

Il0J1U09,l,l0||OH

1|OJ1UO1)HO||OH

INITIAL

provided

Model 113.

after

noted

these checks,

of

to

‘|a/\a| /v\o| e 01 aseamap

that

d

1n0

The

Jolejaua

control

51nd1no

('s6ugpea1

a>Leu1

V

/\:>uanba1:L

to

facilitate initial

In

general,

inspecting

to

be reported

the

Corporation),

any

difficulty be

contact

'A|Jad01d 5U!18J9dO

providing a 1 V pk-pk

aqn, sa1a|dwoo

be used

eql

is

'1!un

(115

in

a1n|0sqe

se pauuo;

umlag (ZL)

the

01 1Lun

V ac

"L/\() aql sseud (LL)

rear

of

the

instrument

aql

Leugs aql 1a3 (QL)

it remains depressed.

test

toggle

to

lndu!

-lam‘

f d

1n0 9141

1n

aql

green indicator should

‘Bums

settings:

'>|d->|d

101guo|/\|

aql

pue

loauuoo

19$

laauuog

q5!|_|

/v\0"|

u|e1q0

01 ad0os0||g:>s0

01

8L|1

|eu6gs aql

aql

Aou:-)nba1;L

1nd1n0

01 ‘s6u|11as

1!

SECTION

the

instru-

to

the

s!|.|_|_

position

or

220

and

the

left,

(6)

(3)

(turn

(L)

(9)

(p)

(0)

II

CHECKS

(b) Coupling: A

the

Frequency

the

signal

it

(c) Low

(d) High

Connect

(6)

Set

(7)

connect oscilloscope settings, and

as;/v\>|00|01e1un0:> A||n; :'|eQ !QLx zugeg (2)

uml)

(8) Monitor

pk-pk.

(9)

Set

p|n0qs JO1BO[pU! uaa16 aqi '1q5[J aql 01 1; qsnd uaql

the

9L|1 01 a|6601

‘1;a|

input

'p8SS9Jd8p

(10)

Set the

pue 1uaLum1suL

(11) Press

decrease absolute signal

JO

QZZ

oe /\ 9L L) pasn aq 01 a5e1|0/\

unit

uoglgso sq), ug sq

(12) Return

to

output

the

:s6ug11as

the

signal

output;

level.

sugeweu 1g1eq1 os qf)1!N\S J8IV\Od aql ssc-ud (3)

the

signal

output;

aq),

the

to

unit.

the

This completes formed

>|d->|d

operating properly.

as

/\ L e

indicated,

Bugpg/\01d

edoasomaw

aql 1oe1u0:) ‘s>|oaqo asaql 1n0 Bug/X11129 ug pa1a1uno:>ua

aq /\1|n:>g;Lgp Aue p|OL|S

'(U0!1B.lOd.lOQ

01 panodaj aq 01 palou Aue) aewep Bugddgqs 10; luau;

aq1

amp,

-nnsug

’|e1aua6

aqn,

l9!1!U! 9191!|!99}

qomasag pauddv uolaoupd 01 pue J9!.lJBI)

ugmadsug Jaye pauuopad

u| 'gLL |ap0|/\|

input

AC, B

input

GND.

Rolloff

oscilloscope

generator

to

the A input

to

make

obtain

consistency

the

control:

to

the

to

1 Hz, 1 V pk-pk, and

output

1 Hz.

1 kHz.

BNC jack_

BNC jack. (Use

signal

generator

between

input

amplitude

readings.)

f(,,s>|og|o,,

output;

|OJ1UOO Leglgug 6uL/v\0||0,1 aL|1 e>|e|/\L

generator

the

output

1sa1 Malleq

generator

the

output

L0 1291

OVL

recovery

a low level, typically

amplitude

LL01!/v\s

ap!|s Laue -ma; 8L|1 ems

power

switch

the

initial checks. If

pue ‘z|_|

L

'z|-|>|

one

L0

CHCHQN

LL01!/v\s aql

the

output

'suog1gs0d

to

100

level should be

pepe0|-Bupds

to

1 kHz, 1 V pk-pk.

level should be 7 V pk-pk.

'G|OQld9I)9J

01u! p100 aug| sq], 6n|d (3)

sq),

button;

can vary considerably

au|| sq), 6u|1L2(:>O|iJ:1\|

to

the

ElH(]3OOHd 8'2

QQL ’z|_|

can be reasonably sure

a|qedeo JOlB.l9U95 |eu6!3

Molejoqm

|!1un

level should be 7 V

10;1q5;|

qloq

Hz, 1 V pk-pk.

ten

9141 qsnd

J9N\Od

aql o1uL

the

output

50

mV. However,

.

OFF

.

a>|e|/\|

(out) position.

the

instrument

L12 a/\e/vxaugs

asodmd ‘mama

-|-N3Wd|nO3

times

. .

wmleluasajdal

'/\||Q1U£-)LU!.l9dX9

aql Lo 5U!>|38L|3

01 P9P!'\0Jd 5! 9mP99°1d 5“!/\/\°||°} 9LLL

15 Bugsn a1o;aq 1nq

aq p|noqs

ampaoojd

a0ueuu0,uad

the

settings

(g)

Monitor

the

(17)

Monitor

should

the

from

(L)

per-

that

it

(Z)

(L)

Z2

is

'c1|\|91ndu!

s‘:)v1ndu!v =5u!|dn<>:> (q)

S)lO3H3

NOLLOHS

ll

'lVl.l.lNI

11-1

NOLLOHCJOHLNI

L'Z

EG&G 113 Operating And Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual