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Mindray WATO EX-55 - Service Manual

Mindray WATO EX-55
322 pages
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WATO EX-55/65 Anesthesia
Machine
Service Manual

Table of Contents

Questions and Answers

  • K
    Karl GlassAug 16, 2025
    What to do if Mindray WATO EX-55 Medical Equipment shows 'Low Battery Voltage!'?
    • E
      Elizabeth SalazarAug 16, 2025
      If you see a 'Low Battery Voltage!' message, first ensure the system is connected to AC mains. Then, verify the battery's condition and check the charging circuit. If the charging circuit is not working, the power board may need replacement.
  • K
    kaneryanAug 19, 2025
    What to do if Mindray Medical Equipment displays 'Battery Undetected'?
    • V
      Vanessa MartinAug 19, 2025
      If the 'Battery Undetected' error appears, first ensure a battery is installed and that its voltage is normal. Check the cable connections to the power module. If the issue persists, try replacing the battery. If problems continue, the power board may need to be replaced.
  • L
    Lisa FrenchAug 21, 2025
    What causes 'Power System Comm Stop' on Mindray Medical Equipment and how to fix it?
    • L
      Linda FarleyAug 21, 2025
      A 'Power System Comm Stop' error can occur due to a communication cable error between the power board and the main control board, power board software failure, or power board hardware failure. Try re-plugging the communication cable or replacing it. If it is a software issue, restart the machine or update the power module software. For hardware failures, consider replacing the power board.
  • K
    Kimberly ReedAug 25, 2025
    Why does Mindray WATO EX-55 Medical Equipment say 'System DOWN for battery depletion!' and how can I fix it?
    • L
      Lindsay GonzalesAug 25, 2025
      The 'System DOWN for battery depletion!' message indicates a faulty battery that cannot be recharged, or a mismatch between the system software version and the machine type. Connect the equipment to AC mains and measure the battery voltage to see if it can be recharged. Also, verify that the system software version is compatible with the machine; if not, update the software. If the issue continues, the power board may need replacing.
  • M
    Mrs. Susan WilliamsAug 28, 2025
    How to fix 'Power System Selftest Error' on Mindray WATO EX-55?
    • W
      Wendy SmithAug 28, 2025
      A 'Power System Selftest Error' could be due to power board software or hardware failure. To resolve this, first restart the machine. If that doesn't work, disconnect the battery from the AC mains and power it on again after 5 minutes. Also, consider updating the power module software.
  • M
    mullennatashaAug 30, 2025
    What to do if Mindray WATO EX-55 Medical Equipment shows 'Power Board High Temp'?
    • D
      Dr. Robert Washington DDSAug 31, 2025
      If the power board temperature exceeds 95 ?, the equipment will show 'Power Board High Temp'. Check the fan for the power module. Stop using the machine for some time. If, after restarting, the problem remains, consider replacing the power board.
  • J
    Jennifer DavisSep 2, 2025
    What does 'Breathing Circuit Not Mounted' mean on Mindray Medical Equipment and how do I resolve it?
    • D
      davidknoxSep 3, 2025
      The 'Breathing Circuit Not Mounted' message indicates that the breathing circuit is either not installed or not correctly connected to the circuit base. Ensure the circuit is correctly installed. Check the connection between the connection line and the connector. For WATO series anesthesia machines, replacing the power board might be necessary, as it detects the circuit's position.
  • W
    woodisaiahSep 5, 2025
    Why does Mindray WATO EX-55 say 'Power Supply Voltage Error'?
    • S
      Scott WestSep 5, 2025
      A 'Power Supply Voltage Error' indicates a 3.3V, 5V, or 12V error. Measure the voltage at the corresponding test point. If the problem persists, the power board may need to be replaced.
  • M
    Martin WalshSep 9, 2025
    Why does Mindray WATO EX-55 RT clock need reset?
    • J
      john57Sep 9, 2025
      The RT Clock may need a reset because there is no button cell available in the system, or the battery has no capacity. Replace with a new button cell. If the problem persists, replace the main control board.
  • J
    Jared ReeseSep 12, 2025
    What to do if Mindray WATO EX-55 RT Clock Not Exist?
    • K
      kimberly89Sep 12, 2025
      If the RT Clock does not exist, it may be due to an RT chip malfunction. Try restarting the machine. If the problem persists, replace the board.

Summary

Safety

Safety Information

Describes safety symbols, DANGER, WARNING, CAUTION, and NOTE definitions.

Equipment Symbols

Lists and explains the various symbols used throughout the manual.

Theory of Operation

Pressure Unit Conversion Table

Provides a table for converting pressure units between different scales.

Gas Flow

Explains the pneumatic circuit diagram, parts list, symbols, and gas flow description.

Description

Details the gas supply systems and anesthetic gas delivery mechanisms.

Checkout and Test

System Inspection

Initial physical and functional checks of the anesthesia machine.

Pipeline Tests

Verifies the functionality and pressure of pipeline gas supplies.

Cylinder Tests

Verifies the functionality and pressure of cylinder gas supplies.

Flow Control System Tests

Tests gas mixing accuracy and output flow rates.

Breathing Circuit Tests

Assesses the integrity and functionality of the breathing circuit.

Alarm Tests

Verifies the correct operation of all system alarms and their triggers.

Electrical Safety Tests

Ensures the equipment meets electrical safety standards.

Maintenance and Calibration

Equipment Maintenance

Outlines periodic maintenance schedules and replaceable parts.

System Test

Details routine tests to perform after service or return visits.

System Calibration

Provides procedures for calibrating sensors and flowmeters.

Software Upgrade and Software Configuration Activation

Instructions for updating software and activating system functions.

Troubleshooting

Technical Alarm Check

Guides to diagnose and resolve technical alarms.

Pneumatic Circuit System Problems

Addresses potential failures within the pneumatic system.

Hardware and Electrical Problems

Troubleshoots common hardware and electrical component failures.

Repair and Disassembly

Prepare for Disassembly

Lists necessary tools and safety preparations before disassembly.

Disassemble the Assemblies

Provides step-by-step instructions for disassembling major assemblies.

Disassemble the Breathing System

Details on removing components of the breathing system.

Electrical and Pneumatic Connections

Shows wiring diagrams and pneumatic connection layouts.

Parts

Main Unit

Exploded view and parts list for the main unit.

Breathing Circuit

Exploded views and parts lists for breathing circuit components.

Mindray WATO EX-55 Specifications

General IconGeneral
BrandMindray
ModelWATO EX-55
CategoryMedical Equipment
LanguageEnglish

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