SPACELABS 91518 Manuals

SPACELABS 91518 Manuals

Manuals and User Guides for SPACELABS 91518. We have 1 SPACELABS 91518 manual available for free PDF download: Service Manual

SPACELABS 91518 Service Manual

SPACELABS 91518 Service Manual (93 pages)

Multigas Analyzer

Brand: SPACELABS | Category: Measuring Instruments | Size: 5.61 MB

Table of Contents

Table of Contents
3
Introduction

5
- Overview
  5
- Multigas Analyzer
  5
- Compatibility
  6
- Dimensions
  6
- Environmental Requirements
  7
- Controls and Connectors
  8
  - Front View
    8
  - Rear View
    9
Setup

11
Theory

27
- Product Overview Block Diagram
  27
- Detailed Block Diagram
  28
- Interface PCBA
  29
  - Power Fault Detection
    29
  - Reset Circuit
    29
  - Serial Number IC Circuit
    29
- Gas Analyzer Unit
  30
  - Gas Sampling System
    30
  - Memory Circuits (RAM and Flash ROM)
    30
  - SDLC Interface
    30
  - D-Fend Water Trap
    31
  - Gas Analyzers
    31
  - Nafion Tubes
    31
  - Zero Valve and Absorber
    31
  - Occlusion Valve
    32
  - Sampling Pump and Damping Chamber
    32
  - Gas Analyzer in Principle
    33
  - Gas Measuring Unit
    33
  - Gas Tubing Layout
    33
  - CO2 and N2O Absorbance
    34
  - Infrared Absorbance of Anesthetic Agents
    34
  - CPU Board
    35
  - Gas Analyzing Unit
    35
  - Oxygen Measuring Unit
    35
  - Control Logic
    36
  - Signal Processing
    36
  - Calibration Data Stored in EEPROM
    37
  - OM Board
    37
Maintenance

39
- Overview
  39
- Preventive Maintenance
  40
  - Hardware/Mechanical Check
    40
  - Functional Performance Check
    40
  - Initialization
    41
  - Gas Sampling Line and Gas Sampling Tee
    41
  - Replacing the Fan Air Filter
    42
  - D-Fend Water Trap Replacement
    42
  - D-Fend Connection O-Ring Replacement
    43
  - To Remove the O-Rings
    43
  - To Replace the O-Rings
    43
  - Reference Gas Block Replacement
    44
  - O-Rings Correctly Seated in Post Grooves
    44
  - Reference Gas Block Label
    44
  - Gas Unit Disassembly
    45
  - Reference Gas Block Assembly
    45
  - Rear Panel Fastener and Screws
    46
  - Connector Cable
    46
  - Removing the Handle from the Gas Bench
    47
  - Separating the Gas Unit from the Case
    47
  - Pneumatic Block Filter Replacement
    48
  - To Replace the Pneumatic Block Filter
    48
  - Dip Switches, Normal Operating Position
    48
  - Removing the Filter Restraint
    49
  - Nafion Tubing Replacement
    50
  - Nafion Tubing Routing
    50
  - Absorber Replacement
    51
  - Disconnecting the Nafion Tubing
    51
  - Cleaning
    52
  - Nafion Tubing Connected
    52
  - Software Updates
    53
  - Firmware Updates
    54
- Corrective Maintenance
  54
  - Service Calibration Mode
    54
  - Equipment and Supplies Needed for Calibration
    55
  - To Perform a Gas Calibration
    56
  - SERVICE CAL Menu Keys
    58
  - GAS - CALIBRATION Menu
    58
  - SERVICE CAL Mode
    59
  - Leak Check Test
    61
  - Leak Test Configuration
    61
- Disassembly and FRU Replacement
  62
  - Interface PCBA Replacement
    62
  - Gas Unit Replacement
    63
  - Power Switch Assembly Replacement
    63
  - PCBA Removal
    64
Troubleshooting

67
- Tools and Equipment
  67
- Problem Solving
  67
- Error Conditions and Status Messages
  68
Parts

73
- Field Replaceable Parts
  73
- Drawings
  77
- Electromagnetic Compatibility
  79
Appendix A - Electromagnetic Compatibility

79
- Electromagnetic Emissions
  79
- Electromagnetic Immunity
  80
- Frequency Separation Distances
  81
  - Interference
    82
  - Mitigation
    82
  - Symbols
    83
  - Abbreviations Used as Symbols
    91

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