Newport HT50 User manual

Newport Medical Instruments, Inc.
NEWPORT HT50 VENTILATOR
Service Manual
SERHT50NA Rev. A
September 2008
(P/N HT50-H, HT50-H1, HT50-H1-B)
Exclusively distributed by:
NEWPORT MEDICAL INSTRUMENTS, INC.
1620 Sunflower Avenue
Costa Mesa, CA 92626 USA
Tel: [phone] Ext. 500
Tel: [phone] (USA only)
Fax: [phone]
Customer Service ext. 282
www.Ventilators.com
email: [e-mail]

MANUAL REVISION HISTORY
SERHT50NA A0808
HT50 Service Manual SERHT50NA
DATE REVISION PAGES EFFECTED
August 2008 A New release for dual
internal battery update

SERHT50NA A0808
TABLE OF CONTENTS
Section 1 . . . . . . . . . . OPERATOR’S RESPONSIBILITY
• Operator’s Responsibility for Patient Safety
• Limitation of Liability
• Warranty
• Definitions
• Typing Conventions
• Warnings and Cautions
• Factory Maintenance or Repair
• Contact Information
Section 2 . . . . . . . . . . SPECIFICATIONS
•Intended Use
•Symbols / Labeling Table
• Controls / Alarms / Monitors
• Hardware Requirements
•Miscellaneous Specifications
• Humidifier Specifications
• Air / Oxygen Entrainment Mixer Specifications
• Oxygen Blending Bag Kit Specifications
Section 3 . . . . . . . . . . DESCRIPTION OF CONTROLS, INDICATORS,
ALARMS & CONNECTORS
• Front Panel Overview
• Front Panel Controls & Indicators
• Front Panel Alarms
• Front Panel Message Display Window
• Left Side Connectors
• Right Side Connectors
• Optional Accessories
•User Set Up
Section 4 . . . . . . . . . . THEORY OF OPERATION
•General System Overview
• A/CMV Mode (Assist/Control Mandatory Ventilation)
• SIMV Mode (Synchronized Intermittent Mandatory
Ventilation)
• SPONT Mode (Spontaneous Ventilation)
• Psupport (Pressure Support)
• Pressure Control Ventilation
• Volume Control Ventilation
• Back-Up Ventilation

SERHT50NA A0808
Section 5 . . . . . . . . . . CALIBRATION AND OPERATION VERIFICATION
• Introduction
• Test Equipment Required
• Pre-Test Inspection
• Front Panel Test / Alarm Check
• System Leak Test
• Pressure Transducer Calibration
• Pressure Meter Calibration
• Volume Factor Calibration
• Pressure Relief Valve Calibration
• Exhalation Valve Calibration
• Operational Set-Up (Standard Test Settings)
• Pressure Verification
• P trig
• PEEP / CPAP
• Pressure Control
• Exhalation Valve Sealing
•Manual Inflation
• High Paw Alarm
• Low Paw Alarm
• Check Prox Line Alarm
• Battery Test
• Humidifier (for HT50-H)
• OVP Test Record
Section 6 . . . . . . . . . . MAINTENANCE PROCEDURES
• Introduction
• Tools Required
• Parts Required
• Routine Maintenance Procedure
• Annual Maintenance Procedure
• 10,000 Hour Maintenance Procedure
Section 7 . . . . . . . . . . TROUBLESHOOTING
• Introduction
• Mechanical and Pneumatic Troubleshooting
• Electronic Troubleshooting

SERHT50NA A0808
Section 8. . . . . . . . . . ELECTRONIC & PNEUMATIC COMPONENT REMOVAL &
REPLACEMENT PROCEDURES
• Introduction
• Tools Required
• Discharge the HT50 Power Supply
• Disassembly (Lower Case)
• Internal Battery Assembly Replacement
• Pump Assembly Replacement
• Outlet Assembly Replacement
• Humidifier Heater Assembly Replacement
• Front Panel Board Replacement
• Front Panel Bezel Replacement
• Main Board Assembly Replacement
• Power Supply Board Replacement
Section 9 . . . . . . . . . . DIAGRAMS AND PARTS LISTS
•Figure 9-1, Internal View
•Figure 9-2, Final Assembly, Front View HT50-H
• Figure 9-3, Final Assembly, Front View HT50-H1
•Figure 9-4, Main Board with Mounting Hardware
• Figure 9-5, Main Board Tubing Connection, Left Side
• Figure 9-6, Right Side Case
• Figure 9-7, Front Panel, Side View
• Figure 9-8, Pneumatic Schematic
•Drawing Parts Reference List
Section 10 . . . . . . . . . REPACKAGING AND SHIPPING INSTRUCTIONS
•Introduction
•RGA (Return Goods Authorization)
• Packaging: Complete Unit
• Packaging: Parts or Accessories
Appendix A . . . . . . . . HT50 PARTS AND ACCESSORIES
• HT50 Ventilator Parts and Accessories
• Service Parts List