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NELLCOR PURITAN BENNETT LP6 Plus Technical Manual Download Page 56

Functional Block Diagram

Functional Block Diagram

Functional Block Diagram

Functional Block Diagram

LP6 Plus, LP10, and LP20 Technical Manual

November 2000

Page  4-16

Page  4-16

Page  4-16

Page  4-16

Functional Block Diagram

Functional Block Diagram

Functional Block Diagram

Functional Block Diagram

XFMR

PRIMAR

Y

FUSE

PRIMAR

Y1
A

PRIMAR

Y1
B

PRIMAR

Y2
A

RFIOUT

1

RFIOUT

2

RFI

FIL
TER

T1

0

RFIIN1
RFIIN2

GND

A.C.

LINE

CORD

CIRCUIT

BREAKER

MAIN

SWITCH

+

-

+

-

+

-

BRIDGE

RECTIFIER

INTERNAL

BA

TTER

Y

EXTERNAL

BA

TTER

Y

CONNECT

OR

CONTROL

OUT

LOW

POWER

LEVEL

SHUTDOWN

AUDIO

ALARM

ALARM

CIRCUIT

AUDIO

ON

ON/OFF

+12

VOL
T

REG.

ON/OFF

+5
VOL
T

REG.

DRIVE

CONTROL

CPU

SOL

SOL

D

RIVER

CONTROL

MOT

OR

CONTROL

SPEED

+12

INPUT

+5

CPU

OFF

CPU

FOR
W

11

0

111

11

2

EOT

CHARGE

CIRCUIT

ON/OFF

1

ON/OFF

2

DRIVE

TRANSIST

ORS

COIL

DRIVE

+5V

+12V

SOLENOID

DRIVER

+12V

,GND

FA

N

MOT

OR
BOARD

CPU

Z80A

RESET

RD

IO

XT

AL

OSC

A/D

CLK

RESET

CIRCUIT

EPROM1
EPROM2
EEPROM
RAM

MEMOR

Y

COMPONENTS

R

TCLK

CLKRD

CLKWR

CTCA

RO

IO

CTCRD

CTCWR

R/W

CLKRD

CLKWR

EPROM1

EPROM2

EEPROM

RAM

DAMETER

DASPEED

A/DSET

A/DREAD

SWITCH1

SWITCH2

SWITCH3

LED

BITSOUT

MOT

OUT

MOTRD

PRINTER

PRINTSTD

CTCRD

CTCWR

AMPLIFIED

PRES.

A/DREAD

ASSIST

CLKIN

INT
.CUR

INT
.VOL
T

EXT
.CUR

EXT
.VOL
T

A/D

A/DSET

VOL

REF
.

PRES.

SWITCH3

SWITCH2

SWITCH1

SWITCH

INTERF

ACE

HIGH

PRES.

LOW

PRES.

INSP

.T

IME

BPM

VOL

ASSIST

MODE

R

R

R

R

R

G

A

A

G

ALARMS

POWER

MODES

INFORMA

TIONAL

MOTRD

MOTOUT

BITSOUT

INT. OFF

CHG. OFF

TONE

AUDIO ON

HOUR METER

CPU FORW

CPU OFF

CPU SOL

H0

H1

H2

EOT SENSOR

KEEP

ALIVE

MOT

OR
BOARD

INTERF

ACE

LOGIC

BOARD

DAMETER

DASPEED

PRES

XDCR

END

OF

STROKE

SENSOR

GEARBOX

BRUSHLESS

D.C.

MOT

OR

CRANK

PUMP

PIST

ON

SEAL

RING

1MV

CHECK

VAL

VE

AIR
INLET

FIL
TER

0.3
M

ICRON

AIR

INLET

COMMUNICA

TION

POR

T

CONNECT

OR

INLET

CHECK

VAL

VE

OUTLET

CHECK

VAL

VE

62
MICRON

GROSS

PAR
TICLE

FIL
TER

VENT

EXHALA

TION

SOLENOID

VA

LV

E

VENTILA

TO

R

MANIFOLD

PRESS/

BA

TT

.

METER

PA

TIENT

CIRCUIT

EXHALA

TION

VA

LV

E

TUBE

PA

TIENT

AIR

PROXIMAL

PRESSURE

TUBE

FLEXIBLE

LINES

EXHALA

TION

VA

LV

E

EXHAUST

PA

TIENT

LINE

PA

TIENT

MANIFOLD

40
MESH

GROSS

PA

R

TICLE

FIL
TER

PAT
IE

N

T

HOSE

LED

BOARD

FRONT

PANEL

BA

TTER

Y

SELECT

RELA

Y

LOW

P

RESSURE

APNEA

HIGH

PRESSURE

SETTING

ERROR

POWER

SWITCH

OVER

A.C.

PWR/BA

TT

.CHARGE

EXTERNAL

BA

TTER

Y

INTERNAL

BA

TTER

Y

BREA

THING

EFFOR

T

LOW

P

OWER

J16

EOT

+5V

P6

P7

INT. CUR

EXT. CUR

EXT. VOLT
INT. VOLT

POWER

DIODES

J3

INT. OFF

MODE COM.

CHG. OFF

CHASSIS

GND

+

-

+

-

J8

J5

P5

J4

P4

BACKUP SIGNAL

MODE

DA
TA

BUS

ADDRESS

BUS

VOL
TAGE

DRIVER

REF
.

J10

J12

LED

J9

REAR

PANEL

+5V

+12V

MODE CCW

1

+

-

VOL
TAGE

SELECT

OR

PRIMAR

Y2
B

SECONDAR

YA

SECONDAR

YB

P9

P1

P3

P2

J2

J6

J7

P10

-

P1

1

J1

1

REMOTE

ALARM

INTERF

ACE

PRESSURE

PLA
TEAU

VA

LV

E

MECHANICAL

PRESSURE

RELIEF

VAL

VE

SPEED

VOL

BACK

UP

CIRCUITR

Y

NURSE

CALL

BOARD

ALARM

LP20

ONL

Y

ONL

Y

LP10

&

LP20

2

1

4

5

11

12

7

9

8

21

17

18

20

22

23

32

35

51

52

13

14

Summary of Contents for LP6 Plus

Page 1: ...LP6 Plus LP10 and LP20 Volume Ventilators Technical Manual L 004238 001 Rev B ...

Page 2: ... or stored in any form without the express written permission of Nellcor Puritan Bennett Inc Nellcor Puritan Bennett is a registered trademark and A Breath of Fresh Air is a trade mark of Nellcor Puritan Bennett Inc For more information For information on our full line of medical equipment and related services contact Nell cor Puritan Bennett directly General 800 497 4979 Customer Service 800 497 ...

Page 3: ...rs Ventilator Parameters Ventilator Parameters 2 8 2 8 2 8 2 8 Accessories Accessories Accessories Accessories 2 11 2 11 2 11 2 11 Specifications Specifications Specifications Specifications 2 12 2 12 2 12 2 12 LP6 Plus LP10 and LP20 Volume Ventilators 2 12 3 Testing 3 Testing 3 Testing 3 Testing Scope Scope Scope Scope 3 2 3 2 3 2 3 2 Equipment Equipment Equipment Equipment 3 3 3 3 3 3 3 3 Suppli...

Page 4: ... and Major Components Boards and Major Components 4 7 4 7 4 7 4 7 Logic Board 4 7 Power Motor Board 4 7 LED Board 4 7 Exhalation Solenoid Valve 4 7 Pressure Transducer 4 7 Fan 4 7 Audio Alarm 4 8 Magnetic Position Sensor 4 8 Motor and Gearbox 4 8 Transformer 4 8 RFI Filter 4 8 AC Power Switch Circuit Breaker 4 8 Rectifier 4 8 AC Power Cord 4 8 Internal Battery 4 8 DC Circuit Breaker 4 8 Nurse Call...

Page 5: ...7 8 7 8 Through Hole Logic Board Through Hole Logic Board Through Hole Logic Board Through Hole Logic Board 7 9 7 9 7 9 7 9 Through Hole Logic Board Through Hole Logic Board Through Hole Logic Board Through Hole Logic Board 7 10 7 10 7 10 7 10 Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board 7 11 7 11 7 11 7 11 Surface Mount Logic Board Surfac...

Page 6: ...LP10 Back Panel LP6 Plus LP10 7 24 7 24 7 24 7 24 Back Panel LP6 Plus LP10 Back Panel LP6 Plus LP10 Back Panel LP6 Plus LP10 Back Panel LP6 Plus LP10 7 25 7 25 7 25 7 25 Back Panel LP20 Back Panel LP20 Back Panel LP20 Back Panel LP20 7 26 7 26 7 26 7 26 Back Panel LP20 Back Panel LP20 Back Panel LP20 Back Panel LP20 7 27 7 27 7 27 7 27 Nurse Call Board Nurse Call Board Nurse Call Board Nurse Call ...

Page 7: ...s intended for use only by qualified individuals in the installation and maintenance of the LP6 Plus LP10 and LP20 Ventilators Receipt purchase or possession of this document in no way confers or transfers any other rights for the use of this information Disclosure or reproduction of the enclosed without the written permission of Nellcor Puritan Bennett Inc is pro hibited Chapters Chapters Chapter...

Page 8: ...chematics Part descriptions added to drawings New surface mount board drawings added Back panel drawing updated with new grounding scheme Conventions Conventions Conventions Conventions The following differentiation is made in this manual between Notes Cautions and Warnings Note Directions that make it easier to use or service the product Caution Caution Caution Caution Directions that help avoid ...

Page 9: ...hospital settings or in transport The ventilators offer a range of delivery volumes inspiratory times and breathing rates The control knobs in the recessed front panel allow the physician or respiratory therapist to set the parameters that will provide appropriate ventilation The door panel and knobs are designed to pre vent tampering and accidental setting changes The ventilators provide both aud...

Page 10: ...lus LP10 and LP20 Technical Manual November 2000 Page 2 2 Page 2 2 Page 2 2 Page 2 2 Components Components Components Components Front Panel LP20 shown Front Panel LP20 shown Front Panel LP20 shown Front Panel LP20 shown o b c d e f g h l k j i m n a ...

Page 11: ... condition is corrected Ventilator Control Knobs See Operating Controls on page 2 5 for details VOLUME and BREATHING EFFORT controls are locking skirted knobs push in and turn to change setting Alarm Reference Guide Summary of alarm functions with suggestions for corrective action Control Panel Door Magnetically latched to protect controls Front Carrying Handle Pressure Limit Control LP10 LP20 Thi...

Page 12: ...wn through this filter Protects airflow and allows for easy filter change Do not block Pressure Relief Cord Wrap and Rear Feet Voltage Select Switch AC Power Switch Circuit Breaker Serial Number Plate COMMUNICATIONS PORT Connector for optional printer DC Circuit Breaker REMOTE ALARM Connection ALARM OUTPUT LP20 only 1 4 phone jack for connecting the ventilator to a nurse call station EXTERNAL 12VD...

Page 13: ... changed without the order of a physician not be changed without the order of a physician MODE Control Selects modes of operation See page 2 6 VOLUME Control Sets the breath volume Push in then turn the knob to change the set ting When adjusted the volume changes in 100 ml steps during each breath until the new volume is reached BREATH RATE Control Adjusts the number of breaths per minute INSPIRAT...

Page 14: ...nspiratory effort creates a negative pressure that equals or exceeds that set on the BREATHING EFFORT control If the patient fails to breathe spontaneously or to achieve the required negative pressure the ventilator takes control and delivers a breath to the patient The ventilator continues to function as a controller until the patient resumes spontaneous inspiratory efforts at an acceptable rate ...

Page 15: ...ol is reached before the set inspiratory volume is delivered this pressure limit terminates inspiration regardless of volume deliv ered and no alarm sounds The high pressure limit may be selected from 15 to 90 cmH2O above atmospheric pressure If the termina tion is ineffective causing the pressure to exceed the high pressure limit setting by more than 10 cmH2O the HIGH PRESSURE light and audio ala...

Page 16: ...tings flow rate is determined by the VOLUME and INSPIRATORY TIME settings Note BREATH RATE and INSPIRATORY TIME settings that would result in inspiratory time longer than expiratory time will cause a SETTING ERROR alarm The ventilator will deliver at the set inspiratory time at an I E ratio of 1 1 Breathing Effort Breathing Effort Breathing Effort Breathing Effort The BREATHING EFFORT control allo...

Page 17: ...tal Oxygen Supplemental Oxygen The ventilator includes provisions for the addition of prescribed sup plemental oxygen The ventilator delivers up to 40 oxygen concen tration when the oxygen elbow and fitting is used Concentrations up to 100 are attainable when oxygen is delivered through the inlet filter port located on the rear panel using the Oxygen Enrich ment Kit Instructions for delivering sup...

Page 18: ...for emergency power backup The amber INTERNAL BATTERY light flashes continuously and a single tone audio alarm sounds every five minutes when the internal bat tery is in use The ventilator charges the internal battery in three hours when the ventilator is connected to AC power and the MODE switch is in any position A discharged internal battery must be recharged for at least three hours prior to t...

Page 19: ...and LP20 Technical Manual November 2000 Page 2 11 Page 2 11 Page 2 11 Page 2 11 Accessories Accessories Accessories Accessories A number of accessories are available for the ventilator including a printer For details see your Nellcor Puritan Bennett Representative ...

Page 20: ...Panel Controls Front Panel Controls Alarm Silence Reset Alarm Silence Reset Alarm Silence Reset Alarm Silence Reset Push button to pre silence alarms before events LP20 only silence alarms during events or reset alarms after events used with Bat tery Test button to read machine operating hours on Patient Pres sure meter Battery Test Battery Test Battery Test Battery Test Push button to show batter...

Page 21: ...udible Alarms Audible Alarms Audible Alarms Double Pulsed Tone Low Pressure Apnea LP20 only Pulsating Tone Low Pressure Apnea LP6 Plus LP10 Low Power High Pressure Setting Error Power Switchover Steady Tone Loss of microprocessor control depleted internal bat tery Reminder Tone Every five min when powered by internal battery and each time accessory printer generates a report Rear Panel Controls Re...

Page 22: ... tem perature stabilization before use Maintenance Maintenance Maintenance Maintenance Preventive maintenance must be performed by qualified personnel every 6000 hours or recertification every 12 months whichever occurs first Dimensions Dimensions Dimensions Dimensions 9 75 x 14 5 x 13 25 24 6 x 36 8 x 33 6 cm Weight Weight Weight Weight 34 pounds 15 5 kg Ventilatory Factors Ventilatory Factors Ve...

Page 23: ...e a verification is performed A copy of the completed checklist should be maintained in the health care provider s file Simple procedures such as the Daily Safety Check listed in the User s Manual and oxygen percentage verification when required should be performed at least once daily when the ventilator is in 24 hour use The Monthly Safety Check listed in the User s Manual provides an additional ...

Page 24: ...s Patient circuit functions and possible leaks Note Time and rate tests marked with an asterisk have limited accuracy Before accepting or rejecting a unit based on these tests ensure that the results are not due to procedural error Warning Warning Warning Warning Do not use the ventilator if it does not pass all of the veri Do not use the ventilator if it does not pass all of the veri Do not use t...

Page 25: ...r a listing of required test equipment and recommended supplier Test Equipment Accuracy Test Equipment Accuracy Test Equipment Accuracy Test Equipment Accuracy Ascertain the accuracy of any test equipment being used for opera tional verification Make certain that the calibration procedures and date comply with the test instrumentation requirements adopted by the testing organization Supplies Suppl...

Page 26: ...t Make certain the press to turn knobs VOLUME and BREATHING EFFORT operate correctly Check the indexing of the knobs Turn them to their left and right limits to insure proper alignment at both limits and to assure they have not slipped on their respective shafts If misalignment is detected calibration should be verified by an authorized Nellcor Puritan Bennett Service Technician Warning Warning Wa...

Page 27: ...d for damaged insulation Check the plug for bent pins or breaks Examine the EXTERNAL BATTERY and COMMUNICATIONS PORT for secure attachment and unbent connector pins Inlet Air Filter Inlet Air Filter Inlet Air Filter Inlet Air Filter Unscrew the cap to the inlet air filter and check the air filter for cleanliness Replace the air filter when it becomes discolored Insert a clean filter so any printin...

Page 28: ... ventilator Power Plug to 110 VAC three prong grounded Patient hose with exhalation manifold to PATIENT AIR port front panel 500 ml Test Lung to exhalation manifold Proximal Pressure tube to PATIENT PRESSURE port front panel Exhalation valve tube to EXHALATION VALVE port front panel Connect to a fully charged external battery Optional Calibrator to communication port back panel Control Setting MOD...

Page 29: ...of the exhalation manifold Quickly attach the syringe to the top of the exhalation manifold Supply a slight amount of air with the syringe approximately 3 cc 5 Allow the ventilator to give one breath then turn the Mode switch from Assist Control to Standby 6 Monitor the patient circuit pressure on the front panel meter or the calibrator by pushing the PRESS button The time required for the pressur...

Page 30: ...TT CHARGE light on ventilator cycles once pressure gauge at 1 division MODE Standby Assist Control Alarm sounds and all indicators light for 2 0 0 5 seconds AC PWR remains on ventilator cycles at 10 1 BPM gauge indicates pressure excursion AC Power Switch ON OFF POWER SWITCHOVER light on alarm sounds EXTERNAL BATTERY light on venti lator continues cycles Alarm silence Press Alarm and indicator OFF...

Page 31: ...100 ml breath cycle Switch Action From To Desired Response MODE Standby Assist Control Alarms lights test AC PWR LED on gauge registers pressure Time breaths Rate equals 10 1 BPM BREATHING EFFORT 5 1 line width from zero Set Breathing rate continues BREATHING EFFORT LED off Squeeze or extend test lung between controlled breaths Negative pressure slightly under zero Gauge registers pressure effort ...

Page 32: ...H PRESSURE check Remove test lung At second breath alarm on double pulsed on LP20 LOW PRESSURE LED flashes ALARM SILENCE Press Alarms off LED flashes After one minute alarm reactivates Replace test lung Alarm off LP20 only ALARM SILENCE Press LED and alarm off Completes LOW PRES SURE check BREATHING EFFORT 5 1 line width from zero BREATH RATE simulate breaths by extending test lung between breaths...

Page 33: ...ode are not repeated Therefore conduct Assist Control oper ational verification in addition to SIMV Prior to beginning the checkout procedure listed on the following page place all operating controls in the position identified under Control Settings on page 3 6 Record results on a copy of the Opera tional Checklist located at the end of this section Note In SIMV mode the ventilator coordinates ass...

Page 34: ... to sim ulated effort Cease spontaneous effort A mandatory breath will occur within 20 seconds after spontane ous breaths cease and will con tinue at the 6 1 BPM rate no alarms activate BREATH RATE Within 20 seconds after switching to 4 simulate breaths 6 4 BREATHING EFFORT LED lights venti lation occurs synchronized to effort Cease spontaneous effort In 20 0 5 seconds after last spon taneous brea...

Page 35: ...Settings on page 3 6 in this section Record results on a copy of the Operational Checklist located at the end of this section Switch Action From To Desired Response AC POWER SWITCH OFF ON Indicator lights flash AC PWR BATT CHARGE light on ventila tor cycles once pressure gauge at 0 1 division MODE Standby Pressure Cycle Alarms and indicators test ventilator commences cycling at 10 1 BPM VOLUME 0 5...

Page 36: ...hapter Switch Action From To Desired Response AC POWER SWITCH OFF ON Indicator light flash AC PWR BATT CHARGE light on ventilator cycles once pres sure gauge at 0 1 division MODE Standby Assist Control Alarms and indicators test ventilator cycles at 10 q1 1 BPM VOLUME 0 5 liter 0 8 liter Patient pressure reaches 40 cmH2O PRESSURE LIMIT CONTROL Full clockwise rotation Push in the outside locking ri...

Page 37: ...not use the ventilator if it does not pass all of the veri Do not use the ventilator if it does not pass all of the veri Do not use the ventilator if it does not pass all of the veri Do not use the ventilator if it does not pass all of the veri fication procedures Refer the ventilator to a Nellcor Puri fication procedures Refer the ventilator to a Nellcor Puri fication procedures Refer the ventila...

Page 38: ...Operational Checklist Operational Checklist Operational Checklist Operational Checklist LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 3 16 Page 3 16 Page 3 16 Page 3 16 ...

Page 39: ...entative User Phone Test Operation Test Results Pass Fail Visual Inspect As specified Control Settings Procedure Not applicable Connections Procedure Not applicable Patient Circuit Leak Test Perform Test As specified Power Perform Tests As specified Assist Control Mode Perform Tests As specified SIMV Perform Tests As specified Pressure Cycle Mode Perform Tests As specified Pressure Limit LP10 LP20...

Page 40: ...perational Checklist Ventilator Operational Checklist Ventilator Operational Checklist Ventilator Operational Checklist LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 3 18 Page 3 18 Page 3 18 Page 3 18 ...

Page 41: ...a high pressure gas source or compressor Intended for 110 VAC or 220 VAC primary power the ventilator also operates for extended periods from 12 VDC power without compromis ing operational specifications An internal DC source provides emer gency power for up to one hour when properly charged should all external power sources fail A brushless motor increases reliability by eliminating components su...

Page 42: ... the patient air path increases beyond the force of the spring air escapes and the pressure is regulated Intermittent Mandatory Ventilation IMV is accomplished by use of a parallel path incorporated into the manifold This path bypasses the pump and allows air to move directly to the PATIENT AIR PATIENT AIR PATIENT AIR PATIENT AIR outlet tube after passing through the inlet filter 1 and an inlet ch...

Page 43: ...verview Refer to the Functional Block Diagram at the end of this section Numbers in parentheses refer to the component numbers on the diagram The major mechanical elements of the ventilator are the motor gear box 8 and 9 the piston pump 5 the pressure relief valve 2 and the exhalation solenoid valve 14 The basic mechanical drive is a brushless DC motor driving a 100 to 1 gearbox The gearbox drives...

Page 44: ...porates a two pole 1 Amp circuit breaker The AC path continues through an RFI filter 17 to the 110V 220V switch and then to the transformer to a full wave recti fier 21 and finally to the system power bus on the power motor board With AC power disconnected the power bus is supplied by an external battery via connector 23 or by the internal 12 VDC source 22 Battery power from the bus only operates ...

Page 45: ...Standby The MODE MODE MODE MODE switch in the Standby position applies AC power to the unit and provides battery charge voltage 13 8V on older models 14 4V on newer models to either the external battery or the internal battery through the motor board The battery charge mode is slower than a standard charger thereby an external charger is recom mended for the external battery The battery charger ha...

Page 46: ...er module SIMV SIMV SIMV SIMV In this mode intermittent mandatory breaths are synchronized with the patient s breathing effort near the rate set on the BREATH RATE BREATH RATE BREATH RATE BREATH RATE con trol Stacking i e a mandatory breath immediately following a spontaneous breath without adequate exhalation time is elimi nated The ventilator delivers a mandatory breath when the SIMV SIMV SIMV S...

Page 47: ...al time clock calendar pro vides date and time data for the remote printer Power Motor Board Power Motor Board Power Motor Board Power Motor Board The power motor board contains the voltage regulators battery charge circuit and the drive circuit for motor control LED Board LED Board LED Board LED Board This board contains the connections for the alarm and power indica tor LEDs as well as the ALARM...

Page 48: ...rature limits are exceeded RFI Filter RFI Filter RFI Filter RFI Filter The filter meets the requirements of U L 544 and U L 1283 AC Power Switch Circuit Breaker AC Power Switch Circuit Breaker AC Power Switch Circuit Breaker AC Power Switch Circuit Breaker The AC Power switch controls both mains lines The power switch contains a one amp AC circuit breaker Normal AC type equipment in the United Sta...

Page 49: ...EST BATTERY TEST BATTERY TEST BATTERY TEST button three times in rapid succession Note This printer has been modified to meet hospital standards for leak age current This modification may cause radio frequency or televi sion interference The printer is exempt under section 15 801 c 5 of the non interference regulation adopted by the FCC External Battery External Battery External Battery External B...

Page 50: ...d LP10 an older through hole board and a newer surface mount board These can be distinguished by checking the types of components on the circuit boards plus the absence of a power motor board heat sink and fan assembly on surface mount units Refer to the Logic Board schematic in the Schematics Chapter The microprocessor U28 is the heart of the system The program is con tained in two memory ICS An ...

Page 51: ...machine hours etc The Time of Day Chip U10 used on older through hole board or U17 on the newer surface mount board uses its own battery to maintain the date time function while power is off Analog to Digital Converter Analog to Digital Converter Analog to Digital Converter Analog to Digital Converter An eight channel analog to digital converter U19 used on older through hole board or U15 on the n...

Page 52: ...ssure level Knowing this determination of pres sure level relative to preset limits occurs If an alarm condition is appropriate the program initiates the alarm functions The program for the low pressure alarm is similar Pressure signals are monitored 100 times per second high and low pressure switch positions are monitored 10 times per second Chip Number Chip Number Chip Number Chip Number Functio...

Page 53: ...econd a microprocessor error has been detected If this occurs motor movement will cease all front panel LEDs will light and a continuous tone alarm will sound Power Motor Board Power Motor Board Power Motor Board Power Motor Board Refer to the Power Motor Board schematic at the end of this man ual The basic function of the power motor board is to control the motor speed and position and to provide...

Page 54: ...rcuitry from AC power 12V from DC power sources A8 on U10 on the older through hole board or U4 on the newer sur face mount board is the backup line the line on the logic board that monitors whether the microprocessor is functioning properly If this line goes high the three CPU lines A4 A5 and A6 are ignored by U10 or U4 The exhalation solenoid will be de energized and all six motor drive transist...

Page 55: ...default The relay is also controlled on the negative side by the microprocessor Because the system cannot differentiate between a fully charged battery internal and external and no battery the battery charge circuitry is interrupted for three seconds every five minutes to allow this check to be completed U4 on the older through hole board or U13 on the newer surface mount board detects when system...

Page 56: ...OW PRES INSP TIME BPM VOL ASSIST MODE R R R R R G A A G ALARMS POWER MODES INFORMATIONAL MOTRD MOTOUT BITSOUT INT OFF CHG OFF TONE AUDIO ON HOUR METER CPU FORW CPU OFF CPU SOL H0 H1 H2 EOT SENSOR KEEP ALIVE MOTOR BOARD INTERFACE LOGIC BOARD DAMETER DASPEED PRES XDCR END OF STROKE SENSOR GEARBOX BRUSHLESS D C MOTOR CRANK PUMP PISTON SEAL RING 1MV CHECK VALVE AIR INLET FILTER 0 3 MICRON AIR INLET CO...

Page 57: ...the operator without invalidating the warranty Nellcor by the operator without invalidating the warranty Nellcor Puritan Bennett Inc assumes no responsibility or liability Puritan Bennett Inc assumes no responsibility or liability Puritan Bennett Inc assumes no responsibility or liability Puritan Bennett Inc assumes no responsibility or liability for the results of any servicing attempted beyond t...

Page 58: ...COM COM COM COM MUNICATIONS PORT MUNICATIONS PORT MUNICATIONS PORT MUNICATIONS PORT Examine the cables and connections on the printer module if used Exterior cleaning Exterior cleaning Exterior cleaning Exterior cleaning Frequency As required Supplies liquid detergent cold disinfectant cloth Procedure 1 1 1 1 Clean the exterior with soap and water or with a bactericidal or germicidal agent 2 2 2 2...

Page 59: ... discoloration Note Filters cannot be cleaned Replace if necessary Any printing on the replacement filter should face towards the front of the ventilator 5 5 5 5 Reassemble in reverse order and secure the plastic filter cap Flatpak Inlet Filter Flatpak Inlet Filter Flatpak Inlet Filter Flatpak Inlet Filter Frequency Monthly weekly if used in transit outdoors or dusty conditions Supplies replacemen...

Page 60: ... 4 Flatpak Filter Replacement Bacteria Filter Bacteria Filter Bacteria Filter Bacteria Filter Frequency As required Supplies replacement filter Procedure 1 1 1 1 Remove the bacteria filter and check for discoloration of the internal filter material 2 2 2 2 Replace if needed or if a new patient is placed on the ventilator or if four weeks have passed since the last filter change ...

Page 61: ...aintenance Preventive Maintenance Preventive Maintenance Preventive Maintenance LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 5 5 Page 5 5 Page 5 5 Page 5 5 Exhalation Manifold Flextube Patient Circuit ...

Page 62: ...y Do not wipe or dry with a towel Do not use a blow dryer Tubing must be completely dry before reattaching to the ventilator Warning Warning Warning Warning Patients requiring ventilation assistance are often highly Patients requiring ventilation assistance are often highly Patients requiring ventilation assistance are often highly Patients requiring ventilation assistance are often highly suscept...

Page 63: ...r valve parts 4 4 4 4 When completely dry screw the mushroom securely into the locking nut and snap the body back into the cap Humidifier Humidifier Humidifier Humidifier Frequency Twice weekly Supplies liquid detergent scouring powder or steel wool fine autoclave gas or cold sterilization Procedure Refer to the manufacturer s manual Warning Warning Warning Warning Ensure proper reassembly of the ...

Page 64: ...e correct and the terminals are not corroded The external battery will be charged by the ventilator in any MODE MODE MODE MODE position The ventilator will fully charge a 12 V deep cycle battery in good condition in approximately three hours of charge time for each hour of use For faster charging time disconnect the battery from the ventila tor and attach it to an appropriate external charging dev...

Page 65: ...ons which accompanied the unit Procedure 1 1 1 1 Disconnect AC power 2 2 2 2 Clean the Printer Module using a damp sponge and a mild household detergent Keep liquid from entering the unit 3 3 3 3 Check the power and ribbon cables for physical damage 4 4 4 4 Connect to an operating ventilator Press the ventilator s BATTERY BATTERY BATTERY BATTERY TEST TEST TEST TEST switch three times within two se...

Page 66: ...Preventive Maintenance Preventive Maintenance Preventive Maintenance Preventive Maintenance LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 5 10 Page 5 10 Page 5 10 Page 5 10 ...

Page 67: ...switch to ON Defective cord or connector Check cord and connector for possi ble loose connections Defective LED Contact Nellcor Puritan Bennett Power light ON but ventilator fails to cycle Mode switch in Standby posi tion Move MODE switch to an active position Alarms activate when unit is turned on Normal test of audible and visual indicators Not applicable Alarms automati cally reset Low Pressure...

Page 68: ... Manifold occluded Ensure manifold operates properly Incorrect Pressure Limit Setting LP10 and LP20 Check Pressure Limit control Patient unable to receive assisted breath BREATHING EFFORT set to neg ative Check setting Moisture in small tubing Drain tubing Unit cycles continually in 1 1 I E ratio in Assist Control mode Improper BREATHING EFFORT control setting Check BRATHING EFFORT control set tin...

Page 69: ... broken connections Check all connectors for broken or missing pins or loose connections Audible alarm sounds LOW POWER light illuminates AC power off Internal battery low Change to adequate external bat tery or to AC power Recharge inter nal battery by connecting to AC power All alarm lights on steady con tinuous alarm Unit has detected a micropro cessor error Turn unit OFF wait 10 seconds then t...

Page 70: ...ne machine machine machine operation operation operation operation Alarm Test All LEDs Alarm for 1 second n a both none none Start up All LEDs Alarm for 2 seconds n a both n a n a Microproces sor Error All LEDs Continuous alarm n a n a n a No ventilation High Pressure High Pressure Pulsing alarm 60 second silence audible HIGH PRESS Piston retracts and mushroom deflates Excess Pres sure High Pressu...

Page 71: ...of 1 1 Mode Switch Setting Error Pulsing alarm 60 second silence audible MODE SWITCH ERROR may default to ventilating mode Self test Over Pressure Valve Fail High Pressure Pulsing alarm 60 second silence both OVP VALVE FAILURE Perform self test then function as in standby mode Selftest Leak Test Fail Low Pressure Pulsing alarm 60 second silence both LEAK TEST FAILURE Perform self test then functio...

Page 72: ...Set ting Error Setting Error Pulsing alarm Test both PRESURE SET TINGS System uses and displays set limits Dynamic RAM Test Error All LEDs Continuous alarm n a n a n a No ventila tion Dynamic ROM Test Error All LEDs Continuous alarm n a n a n a No ventila tion 10 Hz Task Ending All LEDs Continuous alarm n a n a n a No ventila tion Alarm Alarm Alarm Alarm LED LED LED LED Audio Audio Audio Audio Ala...

Page 73: ...olume Ventilators This chapter contains proprietary information It is intended for use only by qualified indi viduals in the installation and maintenance of the ventilator Receipt pur chase or possession of this document in no way confers or transfers any other rights for the use of this information Disclosure or reproduction of the enclosed without the written permission of Nellcor Puritan Bennet...

Page 74: ...LTER S UP PO RT BH CS 2 6 32 X 1 4 BHCS 4 SIDERA IL 10 32 X 3 4 FHCS 2 LEFT CO VE R LEFT SO UND FO AM G A SKET ALARM A LA RM NUT LE FT END PLATE 10 32 X 1 2 FHCS 6 INTERNA L BATTERY ALAR M BRA CKET 6 32 X 1 4 BH CS 2 A LA RM 6 32 X 3 8 SHCS 4 BO TTO M FEET 4 BO TTO M C OV ER SO UND FO AM BO TTO M TRANS FO RM ER A C PO W ER CO RD CABLE TIE NYLO N O RING RIG HT E ND ASS Y M ANIFO LD PIS TO N AN D M ...

Page 75: ...e 7 3 Page 7 3 Front Panel LP6 Plus LP10 Front Panel LP6 Plus LP10 Front Panel LP6 Plus LP10 Front Panel LP6 Plus LP10 FRONT PANEL DISPLAY DECORATIVE TOP OVERLAY BOTTOM FOAM TAPE FRONT PUSH TO TURN KNOB KNOB 5 BOARD PANEL GASKET POWER MOTOR BOARD LOGIC BOARD STRIP OVERLAY STRIKER PLATE O RING NYLON WASHER 2 4 40 X 3 8 FHMS BLUE LOCTITE 242 3 METER BEZEL GASKET FRONT PANEL GASKET ...

Page 76: ...Plus LP10 Front Panel LP6 Plus LP10 VIEW A A 4 WASHER 8 6 32 X 1 4 FOAM TAPE 6 32 X 3 16 10 32 P2 P1 J1 RED BLK A A METER BHCS 3 STANDOFF 3 KEPS NUT METER WIRING ASSY BRACKET METER LABEL SERIAL 4 40 X 3 16 BHCS 4 40 X 11 16 STANDOFF 4 40 X 1 4 STANDOFF 6 32 X 3 16 SLOTTED FLAT COUNTERSUNK SCREW 3 BLUE LOCTITE 242 BHCS 6 32 X 3 16 6 32 X 3 16 BHCS 6 32 X 1 4 STANDOFF TRANSDUCER SLEEVE PRISM 410 LOC...

Page 77: ...nt Panel LP20 Front Panel LP20 Front Panel LP20 Front Panel LP20 FRONT PANEL DISPLAY DECORATIVE TOP OVERLAY BOTTOM FOAM TAPE FRONT PUSH TO TURN KNOB KNOB 5 BOARD PANEL GASKET POWER MOTOR BOARD LOGIC BOARD STRIP OVERLAY STRIKER PLATE O RING NYLON WASHER 2 4 40 X 3 8 FHMS BLUE LOCTITE 242 3 METER BEZEL GASKET FRONT PANEL GASKET BHCS 6 32 x 3 4 DAMPENER HEAT SINK ...

Page 78: ...M TAPE 6 32 X 3 16 10 32 P2 P1 J1 RED BLK A A METER BHCS 3 STANDOFF 3 KEPS NUT METER WIRING ASSY BRACKET METER LABEL SERIAL 4 40 X 3 16 BHCS 4 40 X 1 4 STANDOFF 6 32 X 3 16 SLOTTED FLAT COUNTERSUNK SCREW 3 BLUE LOCTITE 242 BHCS 6 32 X 3 16 6 32 X 3 16 BHCS 6 32 X 1 4 STANDOFF TRANSDUCER SLEEVE PRISM 410 LOCTITE 6 32 X 3 16 BHCS 6 32 X 11 16 STANDOFF 6 32 X 1 4 STANDOFF 6 32 X 3 4 BHCS HEAT SINK DA...

Page 79: ... 17 15 12 14 RES MHz CLK INT M1 A1 74LS293 13 12 4 U11 19 A1 Z80 CTC 1 D4 D5 D6 2 3 D2 D3 27 28 I0 Z02 TR3 IEI RD D0 D1 25 26 U9 CE RD 9 20 13 6 10 IO A0 16 5V D7 22 8 A3 TP1 4M 1MOL TOD CLOCK CALIBRATE CLKRD D0 3 2 4 1 1 12 RDY 4 GND CE X1 10 3 32 C1 pf XTAL 1 32 KHz C2 22 11 X2 9 A4 pf WR PWDN INT OUT STBY INT 21 D4 D6 D5 D3 D2 19 56187 20 U10 17 18 15 CLKRD D1 D0 2 RD 16 N C N C A0 6 7 A1 A2 5 ...

Page 80: ...P7 10K RP7 10 3 9 10K 4 6 10K 1 SECTION 1 24 5 COM COM 18 20 22 14 16 10K 2 RP7 3 4 2 63V C23 47 1K 100K WATCHDOG C22 1 R12 C4 01 R10 5V D7 3 C57 680 C55 SECTION 3 MODE SW 31 8 10 28 25 2 SW5 SER OUT CAL ERROR LED 29 19 SPARE 680 pf 680 pf pf 33 BUSY 34 30 4 6 17 2 C56 C58 680 pf D1 8 D4 D5 D6 17 4 18 D2 D3 14 7 U15 SH1 MOTOUT D0 13 J 11 LD 1 17 D7 3 D4 D5 D6 15 5 U13 74LS795 D1 D2 D3 9 13 7 D0 SH...

Page 81: ... 3 ILE I01 11 DAMETER H SH 1 WR1 1 CS 2 U16 MODEL LP6 10 LP20 7 D0 5V 13 14 D7 D6 10 XFER WR2 15 16 4 5 6 D3 D5 D4 D2 D1 AGND VR I02 I01 ILE SH 1 5V DASPEED G CS 1 WR1 2 2 1 2 RP5 150K R20 CR8 1N4148 RP5 26 7K R30 100K RP3 4 1 C9 LM324 U20B 7 150K R17 11 100K 6 3 100K 4 5 RP5 100K 12V R29 10K VOLUME 100K 1 100K RP3 1 2 3 C8 4 U20A LM324 1 1 RP4 C7 1 100K RP4 2 1 CW 2 3 CW 3 4 1 2 LK NUT 10K LN1 3 ...

Page 82: ...hrough Hole Logic Board LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 10 Page 7 10 Page 7 10 Page 7 10 Through Hole Logic Board Through Hole Logic Board Through Hole Logic Board Through Hole Logic Board Reference only Reference only Reference only Reference only ...

Page 83: ...rface Mount Logic Board LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 11 Page 7 11 Page 7 11 Page 7 11 Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board Reference only Reference only Reference only Reference only ...

Page 84: ...rface Mount Logic Board LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 12 Page 7 12 Page 7 12 Page 7 12 Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board Reference only Reference only Reference only Reference only ...

Page 85: ...rface Mount Logic Board LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 13 Page 7 13 Page 7 13 Page 7 13 Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board Reference only Reference only Reference only Reference only ...

Page 86: ...rface Mount Logic Board LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 14 Page 7 14 Page 7 14 Page 7 14 Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board Surface Mount Logic Board Reference only Reference only Reference only Reference only ...

Page 87: ...00 2W 8 11 9 10 2 R12 330 3 2 1 C9 C5 16 15 3 1 C6 1 R18 2N2907 4 75K Q4 5 6 4 S LIGHT 4 G MERTZ D REBISKIE L LANGE 1 RT OC 1 GND DT REF 7 13 RP2 4 7K 1M 2 6 9 R14 14 1 10 RP2 4 7K RP2 4 7K 7 RP2 4 7K 8 01 C8 10 C7 R19 47 5K 47 5K 01 L2 PIC625 PIC625 01 C36 Q2 C30 01 5 12 R73 C46 1N4148 CR21 221K 1N4148 R71 47 CR20 100K 2N2907 5V Q22 10K R1 50V 1 C26 4 Q6 CT 100UH 2 6 L3 C1 VCC C2 8 11 E1 E2 9 10 ...

Page 88: ...220 SOCKET 24 2732 U10 3 D4 14 4 RP5 1K 2 MPS6717 9 D0 1 Q16 2 15 D5 1 2 RP5 1K MPS6717 D2 11 6 Q14 6 RP8 3 Q18 100 2 3 4 5V 1 1 PIC 635 Q11 4 Q10 PIC 625 2 1 3 4 2 2 MPS6717 Q15 100 3 5V 1 5 RP8 1 PIC 635 Q9 4 Q8 PIC 625 2 1 3 4 2 12 3W 4 75K 3 92K 75K 3 39 2K R49 R50 1M 2 01 R57 C22 R51 15 1 681K C23 14 16 R52 R58 CM 2 REF 2 TL494 U9 1 C2 1 NC 11 001 16 KHz R53 75K 6 C24 150 R54 5 GND CT RT 13 1...

Page 89: ... Hole Power Motor Board LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 17 Page 7 17 Page 7 17 Page 7 17 Through Hole Power Motor Board Through Hole Power Motor Board Through Hole Power Motor Board Through Hole Power Motor Board Reference only Reference only Reference only Reference only ...

Page 90: ...Mount Power Motor Board LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 18 Page 7 18 Page 7 18 Page 7 18 Surface Mount Power Motor Board Surface Mount Power Motor Board Surface Mount Power Motor Board Surface Mount Power Motor Board Reference only Reference only Reference only Reference only ...

Page 91: ...Mount Power Motor Board LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 19 Page 7 19 Page 7 19 Page 7 19 Surface Mount Power Motor Board Surface Mount Power Motor Board Surface Mount Power Motor Board Surface Mount Power Motor Board Reference only Reference only Reference only Reference only ...

Page 92: ...Mount Power Motor Board LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 20 Page 7 20 Page 7 20 Page 7 20 Surface Mount Power Motor Board Surface Mount Power Motor Board Surface Mount Power Motor Board Surface Mount Power Motor Board Reference only Reference only Reference only Reference only ...

Page 93: ...0 LP20 LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 21 Page 7 21 Page 7 21 Page 7 21 Pressure Limit Assembly LP10 LP20 Pressure Limit Assembly LP10 LP20 Pressure Limit Assembly LP10 LP20 Pressure Limit Assembly LP10 LP20 SECTION A A C A A B C B DETAIL C C Reference only Reference only Reference only Reference only ...

Page 94: ...ont Bezel LP6 Plus only LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 22 Page 7 22 Page 7 22 Page 7 22 Front Bezel LP6 Plus only Front Bezel LP6 Plus only Front Bezel LP6 Plus only Front Bezel LP6 Plus only Reference only Reference only Reference only Reference only ...

Page 95: ... November 2000 Page 7 23 Page 7 23 Page 7 23 Page 7 23 Right End Assembly Right End Assembly Right End Assembly Right End Assembly MOTOR GEARBOX ASSY PISTON ASSY 6 32 X 1 2 SHCS 4 CYLINDER SERIAL LABEL CYLINDER GASKET MANIFOLD GASKET MANIFOLD ASSY RIGHT END PLATE RIGHT END PLATE 6 32 X 1 25 SHCS 6 6 32 X 3 8 SHCS 10 ...

Page 96: ...BLUE YEL 5 SPLICE 6 7 BLUE BLK 1 4 3 2 GRN YEL 2 3 4 1 SW SEL VOLT RED BRN BLUE BRN FILTER LINE LOAD LINE V BLUE BRN 1A 1A 8 7 EXT BATT FUSED EXT BATT 6A EXT BATT UNFUSED O2 G 3 1 REF BATT EXT BLUE BRN 3 2 1 TBI P1 WHT BLK P3 BAIL FEET 4 WRAP CORD SHCS 4 8 32 X 3 4 PLUG SCREEN RETAINER CORD SHCS 2 6 32 X 3 8 GROUND STUD BATTERY CONNECTOR EXTERNAL CONNECTOR REMOTE ALARM 12V BREAKER CIRCUIT LOCK 8 3...

Page 97: ...ack Panel LP6 Plus LP10 LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 25 Page 7 25 Page 7 25 Page 7 25 Back Panel LP6 Plus LP10 Back Panel LP6 Plus LP10 Back Panel LP6 Plus LP10 Back Panel LP6 Plus LP10 Reference only Reference only Reference only Reference only ...

Page 98: ...OLT RED BRN BLUE BRN FILTER LINE LOAD LINE V BLUE BRN 1A 1A 8 7 EXT BATT FUSED EXT BATT 6A EXT BATT UNFUSED O2 G 3 1 REF BATT EXT BLUE BRN 3 2 1 TBI P1 WHT BLK P3 BAIL FEET 4 WRAP CORD SHCS 4 8 32 X 3 4 PLUG SCREEN RETAINER CORD SHCS 2 6 32 X 3 8 GROUND STUD BATTERY CONNECTOR EXTERNAL CONNECTOR REMOTE ALARM 12V BREAKER CIRCUIT LOCK 8 32 X 3 5 FHCS 4 TRANSFORMER SCREWS BLUE LOCTITE 425 SWITCH ON OF...

Page 99: ...el LP20 Back Panel LP20 LP6 Plus LP10 and LP20 Technical Manual November 2000 Page 7 27 Page 7 27 Page 7 27 Page 7 27 Back Panel LP20 Back Panel LP20 Back Panel LP20 Back Panel LP20 Reference only Reference only Reference only Reference only ...

Page 100: ... 7 28 Page 7 28 Nurse Call Board Nurse Call Board Nurse Call Board Nurse Call Board C1 0 01u 100k R2 10k R1 BS170 Q1 1N4004 D1 10 1 3 8 2 5 4 3 P1 1 1N4004 D2 0 01u 0 01u 0 01u GL 75L SG1 2 TQ2E 9V 4 7 9 K1 JP2 JP1 C5 0 01u 4 C4 P3 3 2 1 0 01u AUDIO VISUAL RESET 8 V C6 C3 2 C2 5 4 3 P2 1 Reference only Reference only Reference only Reference only ...

Page 101: ...Service Representative Nellcor Puritan Bennett does not recognize the owner of a Volume Venti lator as an authorized service representative Nellcor Puritan Bennett will not be liable for any repairs attempted by the owner Any such attempted repairs other than specified non warranty repairs voids the warranty Parts and labor costs incurred by the owner will not be reim bursed by Nellcor Puritan Ben...

Page 102: ...eriod and that Nellcor Puritan Bennett has the sole right to deter mine whether a defect exists This warranty is conditional on performance of Preventive Mainte nance at a minimum of once every 6 000 hours of operation or recertification every twelve 12 months whichever occurs first by personnel qualified by Nellcor Puritan Bennett The warranty does not apply to Volume Ventilators that have been p...

Page 103: ......

Page 104: ...Nellcor Puritan Bennett Inc Minneapolis MN 55441 2625 U S A General 800 497 4979 Customer Service 800 497 4968 Technical Service 800 497 3787 ...

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