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Welch Allyn 53ST0 User Manual

Welch Allyn 53ST0
106 pages
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Vital Signs Monitor
300 Series
Service Manual

Table of Contents

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Welch Allyn 53ST0 Specifications

General IconGeneral
Model53ST0
ManufacturerWelch Allyn
Eartip MaterialSilicone
TypeStethoscope
ChestpieceDouble-sided

Summary

Safety

General Safety Considerations

Key safety points for monitor usage, placement, and environmental factors.

Electrostatic Discharge (ESD)

Service Overview

Functional Verification

Functional Verification Overview

Describes the procedure for complete functional testing and preventive maintenance.

Functional Verification Procedure

System/Power Setup

Steps for setting up the monitor and its power system for functional verification.

NIBP Testing

Characterization Test

Procedure to characterize the NIBP module, including error code verification.

NIBP Leak and Calibration Tests

Leak Test

Procedure to test the NIBP system for abnormal leakage using a neonatal cuff.

Pressure Calibration Verification

Test to verify pressure readings against a calibrated external pressure meter.

NIBP Valve, Pump, Inflation, and Deflation Tests

SpO2 Testing

Testing Monitor with Nellcor SpO2

Procedure to test the monitor's SpO2 function with Nellcor sensors.

Testing Monitor with Masimo SpO2

Procedure to test the monitor's SpO2 function with Masimo sensors.

SpO2 Sensor Testing

Testing Sensor with Monitor

Procedure to test SpO2 function and verify sensor performance using a simulator.

Temperature Testing

Testing Monitor Temperature Function

Procedure to test the monitor's temperature function using a test key.

Testing Temperature Probe

Procedure to test the temperature probe's accuracy with a calibration tester.

Battery and Patient Isolation Tests

Patient Isolation Test Overview

Overview of the patient isolation test, its importance, and required equipment.

Patient Isolation Test Procedure

Troubleshooting and Repair

Troubleshooting Chart

A chart listing common symptoms, possible causes, and suggested actions for troubleshooting.

Module Repair and Replacement

NIBP Module Characterization

NIBP Module Characterization Procedure

Explains the necessity and procedure for NIBP module characterization.

Welch Allyn Monitor Service Utility

Managing Log Files

NIBP Characterization with Utility

Detailed steps for initiating and completing NIBP characterization using the utility.

Update Monitor Software

Update Monitor Software Interface

Describes the utility's interface for viewing and updating monitor software and firmware versions.

Updating Monitor Software

Disassembly Procedure

Battery Removal

Remove and Disconnect the Battery

Step-by-step instructions for safely removing and disconnecting the monitor's battery.

Chassis Separation

Separate Front and Rear Chassis

Procedure for separating the monitor's front and rear chassis components.

Front Chassis Assembly Disassembly

Disassemble Front Chassis Assembly

Instructions for disassembling the front chassis, including the display board and keypad.

LCD Display Removal

Rear Chassis Assembly Disassembly

Disassemble Rear Chassis Assembly

Instructions for disassembling the rear chassis, identifying its components.

Main Board Removal

Remove the Main Board

Step-by-step guide for disconnecting cables and removing the main board.

NIBP Assembly Removal

Disassemble and Remove NIBP Assembly

Procedure for disconnecting tubing and removing the NIBP pump and module.

Speaker Removal and Replacement

Printer Assembly Removal and Disassembly

Remove and Disassemble Printer Assembly

Procedures for removing the printer door, paper, and the entire printer assembly.

Temperature Module Disassembly

Disassemble Temperature Module

Procedure for removing the temperature module from the monitor's rear chassis.

Nellcor SpO2 Assembly Disassembly

Disassemble Nellcor SpO2 Assembly

Instructions for removing the Nellcor SpO2 assembly and its board from the rear chassis.

Masimo SpO2 Assembly Disassembly

Disassemble Masimo SpO2 Assembly

Procedure for removing the Masimo SpO2 assembly and its board from the rear chassis.

Replacement Parts - Front Case

Replacement Parts - NIBP Plumbing

Replacement Parts - Temperature Option

Replacement Parts - Nellcor SpO2

Replacement Parts - Masimo SpO2

Replacement Parts - Printer Option

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