newport medical instruments, inc. newport ht70 series ...fr newport medical instruments, inc....

Newport Medical Instruments, Inc.

Newport HT70 Series Ventilator

Service Manual SERHT70-2 Rev. B

05/14

Newport Medical Instruments, Inc. 1620 Sunflower Ave. Costa Mesa, CA 92626

Email: venttechsupport@covidien.com 0344

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Contact Information Contact Information

Telephone: 800-255-6774 option #4 & option #2

Operational Hours: Days: Monday through Friday Hours: 8:00 am to 5:00 pm Emergency After-hours: 24-Hour Clinical and Technical Support

Email: venttechsupport@covidien.com

Service Center Address: Covidien 2824 Airwest Blvd. Plainfield, IN 46168

Newport Medical Instruments 1620 Sunflower Avenue Costa Mesa, CA 92626, USA

EC REP

Authorized European Representative Emergo Europe Molenstraat 15 2513 BH, The Hague The Netherlands

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Table of Contents

SERHT70-2 B0514

1 Introduction

Brief Device Description .......................................................... 1-1 Intended Use ........................................................................... 1-3 Ventilator Configurations ......................................................... 1-4 Warnings, Cautions, Notes ...................................................... 1-4

2 Specifications

Front Panel Buttons - Symbols Version .................................. 2-1 Miscellaneous Reference Symbols ......................................... 2-2 Controls / Monitors .................................................................. 2-2 Monitor Data Selections .......................................................... 2-3 Front Panel Membrane Buttons and Indicators ...................... 2-4 Alarms ............................................................................... 2-4 User Adjustable ................................................................. 2-5 Automatic .......................................................................... 2-5 Hardware Requirements .......................................................... 2-7 Environment ............................................................................. 2-8 Size and Weight ....................................................................... 2-8 Factory Default Parameters ..................................................... 2-9 Miscellaneous ......................................................................... 2-9 (optional) Air / Oxygen Entrainment Mixer .............................. 2-9 (optional) Low Flow Oxygen Reservoir .................................... 2-9 Regulatory and Agency Standards ........................................2-10

3 Theory of Operation

Device Description .................................................................. 3-1 Functional Subsystems Overview ........................................... 3-2 Pneumatics System ........................................................... 3-2 Electronics System ............................................................3-3 Ventilation Functions Overview ............................................... 3-7 Modes of Ventilation .......................................................... 3-7 Breath Types .................................................................... 3-10

4 Cleaning and Maintenance

Cleaning and Disinfecting ........................................................ 4-1 Ventilator ............................................................................... 4-1 Accessories ............................................................................. 4-2 Low Flow Oxygen Reservoir .............................................. 4-2 Air/Oxygen Entrainment Mixer .......................................... 4-2 Reusable Breathing Circuits ....................................................4-3

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Table of Contents Air Intake Filter .........................................................................4-3 Proximal Inline Filter ................................................................4-4 Maintenance Guidelines ..........................................................4-4 Routine Maintenance .........................................................4-4 6 Month Maintenance ........................................................4-5 12 Month Maintenance ......................................................4-5 24 Month Maintenance ......................................................4-5 15,000 Hour Maintenance .................................................4-6 General Warnings ....................................................................4-6 Factory Maintenance or Repair ............................................... 4-7 Repacking/Return Information ................................................ 4-7

5 Service and Repair

General Information ................................................................. 5-1 Tools Required......................................................................... 5-1 Removal and Replacement of the Rear Panel Assembly ........ 5-2 Rear Panel Assembly ........................................................ 5-2 Single Board Computer (SBC) Assembly ..........................5-4 Main Control Board (MCB) Assembly ...............................5-5 Power Switch Assembly ....................................................5-6 Removal and Replacement of Top Case Assembly ................ 5-7 Inlet Air Filter ...................................................................... 5-7 Fan Filter and Guard ..........................................................5-8 Top Case Assembly ...........................................................5-9 Fan Assembly ...................................................................5-11 Backup Battery .................................................................5-11 Display Board .................................................................. 5-12 Chassis Assembly ........................................................... 5-13 Buzzer Assembly ..............................................................5-14 LCD/Touch Screen Display Assembly..............................5-14 Handle Assembly ............................................................. 5-15 Membrane Switch Assemblies ........................................ 5-16 Removal and Replacement of the Base Assembly ................5-17 Speaker Assembly ............................................................5-17 Solenoid Valve Group Assembly ..................................... 5-18 On/Off Valve .................................................................... 5-20 Safety Valve ..................................................................... 5-20 Pump Assembly............................................................... 5-20 Manifold Assembly .......................................................... 5-22

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Table of Contents 6 Performance Verification

General Information ................................................................. 6-1 Test Equipment ........................................................................ 6-1 Quick Check ............................................................................ 6-1 Introduction ....................................................................... 6-1 Pre-test Inspection ............................................................ 6-2 Setup and Circuit Check ................................................... 6-2 Standard Test Settings ......................................................6-4 Quick Check Procedure ....................................................6-5 Calibration Procedures ............................................................6-8 Introduction .......................................................................6-8 Equipment Setup ...............................................................6-8 Pressure Transducer Calibration .......................................6-8 Motor Speed Calibration ..................................................6-11 Pump Leak Calibration .....................................................6-11 FiO2 Sensor Calibration ................................................... 6-12 LCD Calibration ............................................................... 6-13 Flow Sensor Board GR-PCB3212A Calibration ............... 6-13 Operational Verification Procedure (OVP) ............................. 6-13 Electrical Safety Test (EST) ............................................. 6-13 Equipment Setup ............................................................. 6-13 Front Panel Test ............................................................... 6-13 AC Power Loss and Shutdown Buzzer Alarm Test .......... 6-14 Circuit Check ................................................................... 6-14 LED/Solenoid Check ....................................................... 6-14 Pressure Relief Valve Test ................................................6-17 Pressure Verification Test .................................................6-17 System Leak Test ............................................................ 6-18 Flow Measurement .......................................................... 6-18