Nellcor N-8000 Service manual

SERVICE

NELLCOR

MANUAL

MODEL

INTERFACE

NOTICE

N-8000

T

This

Interface. It is provided without charge to Nellcor customers and

remains the property of Nellcor Inc. This manual contains

unpublished

transmitted,

available

below.

©

manual

is

proprietary

or

upon

COPYRIGHT

1985

provided

used

request

NELLCOR

Hayward,

800/433-1244 (outside Calif.)

800/351-9754 (within Calif.)

for

the

information

for

any

by

writing

INCORPORATED

Nellcor

254

95

415/887-5858

purpose

and

other

purpose.

the

Incorporated

Whitesell

California

of

is

Company

St.

94545

servicing

not

to be

Additional

at the

A2048

the

Nellcor

copied,

copies

address

Rev.

are

A

S/N:

J)G25b

f^

WARNING

WARNING

—

THE

SERVICABLE

HAZARD

— FOR

FUSES

NELLCOR

REFER

MODEL

PARTS.

CONTINUED

ONLY

WITH

N-8000 INTERFACE CONTAINS NO USER-

FOR

ALL

SERVICING

PROTECTION

THE

SAME

PROTECTION

TO

QUALIFIED

AGAINST

TYPE

AND

AGAINST

FIRE

HAZARD,

RATING.

ELECTRICAL

PERSONNEL.

REPLACE

CONTENTS

jpp^

SECTION

SECTION

SECTION

SECTION

SECTION

SECTION

SECTION

SECTION

1

2

3

4

5

6

7

8

INTRODUCTION

INSTRUMENT

UNPACKING

TESTING

DESCRIPTION

AND

AND

CALIBRATION

TROUBLESHOOTING

THEORY

SPARE

SCHEMATIC

OF

PARTS

OPERATION

LIST

DIAGRAMS

CHECKOUT

AND

REPAIR

SECTION

1

|p*s

INTRODUCTION

1.1 This Manual is provided to qualified service personnel

for

the

purpose of maintaining and repairing the Nellcor

Model N-8000 Interface. Dangerous voltages are exposed

when the cover is removed. Certain components are

critical to the protection of patients and operators and

improper procedures can adversely effect the Instrument's

calibration and/or

personnel

manual are only to be performed by qualified service

personnel.

and

patients,

1.2 Repairing and testing of the Instrument exposes
personnel to potentially hazardous

repair or adjusment may

protection

appropriate, warnings or cautions have been included in

the

text

associated

of

this

bring attention to a

important

possibly

to

the

insure

patient.

to a procedure that

to

prevent damage to the Instrument or an error in

calibration

warnings

or

and

cautions

safety.

the

effect

with

Manual.

The

procedure

the

safety

The

word

should

performance.

be

read

For protection of service

procedures described in this

service

voltages,

the accuracy or

the

Instrument.

term

WARNING

Where

is

and

patient

used

improper

to

or precaution that is

of

service

CAUTION

be carefully

It

is

important

carefully

personnel

brings

followed

that

and

followed.

or

attention

in

order

these

SECTION

2

^

DESCRIPTION

2.1

OF

THE

The

Nellcor

in conjuntion with a Nellcor Model NlOO Pulse Oximeter to

provide

converters,

2.2

with

serial

saturation,

pulse

three

standard

easily stacked with the Nellcor N-100 Pulse Oximeter

during use. The Interface has no alarms nor audible

indicators

status

The

case.

of the AC

The

shows

digital

board.

computers,

data

waveform

BNC connectors, while

from

Nellcor Model N-8000 Interface is contained in one

Inside

only

that

processing

INSTRUMENT

Model

analog

data

stream

limits,

25

pin

of

the

are two

inlet

indicator

the

N-8000

outputs

loggers etc.

printers

on

values.

D-type

its

own,

Oximeter

filter,

light

power

takes

Interface

for

etc.

a

fiber-optic

alarm

modules.

supply

status,

The

analog

connector.

but

can

on

fuse,

is

place

is

stripchart

and

RS-232 communications

The

input

link,

oximeter status and

outputs

the

RS-232 connector is a

It is

pass

the

The

switch

on

the

is

running.

on a

through

serial

power

and

front

single

designed

recorders,

to

D/A

operate

isaproprietary

providing

are

designed

the

channel.

system

power

panel

All

analog

processor

provided

consists

supply.

and

rate,

to be

alarm

simply

and

on

r.

SECTION

3

UNPACKING

3.1

3.2

AND

OPERATING

The
carton

cord

unpacked

The

Nellcor

containing

and

instrument

protect

shipping.

INSTRUCTIONS

Model

fiber-optic

and

the

contents

is

it

from

If

condensation

the

Instrument

N-8000

the

instrument,

cable.

wrapped

Interface

The

box

verified.

in a

sealed

and

moisture

is

substantially

is

packed

User's

should

plastic

in a

Manual,

be

carefully

bag

during

colder

single

power

to

the surrounding ambient temperature, then condensation

3.3

may occur when the unit is
especially in areas of high

be allowed to

unsealed.

FUNCTIONALITY

return

CHECK

to room temperature

unsealed.

humidity,

For this

reason,

the Instrument must

before

being

3.3.1 To verify functionality of the Interface, connect the

power cord to the back of the instrument and plug the

cord

end into the Interface

it snaps

the

Switches

Interface

digital

connector

F.S. (Full Scale) Button, above the SAT BNC connector,

and verify that the output goes up to 10 volts. Do the

same
Button above

corresponding ZERO

return

in.

Connect

in.

N-100 Pulse Oximeter output, labeled

10,

and

voltmeter,

to

test

to

on

zero

the

Connect

fiber-optic

input,

the grey

link by

labeled DATA

end,

in like

11 and 12 to the UP position. Turn on the

leave

see

the
the

volts.

the

N-100

measure

that

RATE BNC connector,
RATE connector. Next press

it

is

Buttons

Pulse

Oximeter

the output voltage on each

near

zero

volts.

using

and verify that the outputs

pushing

INPUT,

fashion,

DATA

OUTPUT. Set

off.

Push

the

F.S.

the

the

until

With

the

than

blue

to

a

BNC