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Nellcor NPB-40 Service Manual

Nellcor NPB-40
55 pages
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Caution: Federal law (U.S.) restricts this device to sale by or on the order of a physician.
To contact Nellcor Puritan Bennett’s representative: In the United States, call 1-800-635-5267 or
925-463-4000; outside of the United States, call your local Nellcor Puritan Bennett representative.
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© 2001 Nellcor Puritan Bennett, Inc. All rights reserved. 036048D-0601
SERVICE MANUAL
NPB-40
Handheld Pulse Oximeter
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Nellcor NPB-40 Specifications

General IconGeneral
BrandNellcor
ModelNPB-40
CategoryMedical Equipment
LanguageEnglish

Summary

SECTION 1: INTRODUCTION

1.1 Manual Overview

Provides an overview of the service manual's content and purpose for servicing the NPB-40.

1.2 Equipment Description

Details the Nellcor Puritan Bennett NPB-40 handheld pulse oximeter, its use, and capabilities.

SECTION 2: ROUTINE MAINTENANCE

2.1 Maintenance Overview

Outlines that the NPB-40 requires no routine service or calibration, but performance verification is recommended.

2.2 Battery Maintenance

Covers guidelines for replacing and disposing of the four "AA" cell alkaline batteries used in the NPB-40.

2.3 Cleaning

Provides instructions for cleaning the NPB-40 using a damp cloth and nonabrasive cleaner.

SECTION 3: PERFORMANCE VERIFICATION

3.1 Performance Verification

Details the procedure for verifying the NPB-40's performance using an SRC-2 pulse oximeter tester.

SECTION 4: TROUBLESHOOTING

4.1 Introduction

Introduces troubleshooting information for the NPB-40, focusing on the front panel keypad, CPU PCB, and LCD PCB.

4.2 Who Should Perform Repairs

States that only qualified service personnel should perform NPB-40 repairs and advises contacting representatives if not available.

4.3 Repair Level Supported

Lists the replaceable components of the NPB-40, including the case top, CPU PCB, and LCD PCB.

4.4 How to Use This Section

Explains how to use the troubleshooting guide and identify failures to specific NPB-40 components.

4.5 Obtaining Replacement Parts

Directs users to contact Nellcor Puritan Bennett Technical Services for technical assistance and replacement parts.

4.6 Troubleshooting Guide

Provides a guide with symptoms, probable causes, and corrective actions for NPB-40 issues, including error codes.

SECTION 5: DISASSEMBLY GUIDE

5.1 INTRODUCTION

Lists the five assemblies the NPB-40 can be disassembled into, including the case top and CPU PCB.

5.2 SYSTEM DISASSEMBLY AND REASSEMBLY

Provides a step-by-step procedure for disassembling and reassembling the NPB-40, including cautions for ESD and screw tightening.

SECTION 6: SPARE PARTS

6.1 INTRODUCTION

Shows spare parts for the NPB-40 with corresponding Nellcor Puritan Bennett part numbers and notes on component modifications.

SECTION 7: PACKING FOR SHIPMENT

7.1 GENERAL INSTRUCTIONS

Provides instructions for shipping the NPB-40 or its components, emphasizing careful packing and obtaining an RGA number.

7.2 PACKING NPB-40 IN ORIGINAL CARTON

Instructs on how to repack the NPB-40 using the original carton and materials for safe shipment.

7.3 PACKING IN A DIFFERENT CARTON

Guides on how to pack the NPB-40 in a different carton if original materials are unavailable, detailing carton strength and packing material requirements.

SECTION 8: SPECIFICATIONS

8.1 PERFORMANCE

Details the measurement range and accuracy specifications for SpO2 and pulse rate for adults and neonates.

8.2 ELECTRICAL

Covers the electrical specifications of the NPB-40, including power requirements, battery type, and capacity.

8.3 ENVIRONMENTAL

Lists the environmental specifications for the NPB-40, including operating temperature, humidity, and altitude.

8.4 PHYSICAL

Describes the physical characteristics of the NPB-40, such as weight, size, and equipment classification.

TECHNICAL SUPPLEMENT

S1 INTRODUCTION

Introduces the technical supplement, covering pulse oximetry principles, theory of operation, and diagrams.

S2 PULSE OXIMETRY PRINCIPLES OF OPERATION

Explains the spectrophotometry and optical plethysmography principles behind NPB-40 operation, including functional vs. fractional saturation.

S3 CIRCUIT ANALYSIS

Provides an explanation of the NPB-40's theory of operation using block diagrams and schematic diagrams.

S4 SCHEMATIC DIAGRAMS

Lists the available part locator and schematic diagrams for the NPB-40, including CPU PCB, LCD PCB, and front panel keypad.

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