Bio-Rad VARIANT II Service Manual PDF DOWNLOAD

Description

Bio-Rad VARIANT II Service Manual PDF DOWNLOAD

Description

This Bio-Rad VARIANT II service manual PDF (Part Number 270-2251, March 2003) is an essential resource for technicians servicing the VARIANT II Hemoglobin Testing System. It provides a comprehensive hemoglobin testing system troubleshooting guide, including chromatography reviews, error codes, and flow diagnostics for accurate issue resolution. The manual features detailed VARIANT II HPLC adjustment procedures for components like column heaters, pumps, detectors, and syringes, ensuring precise calibration.

Bio-Rad VCS replacement parts guide details step-by-step procedures for replacing boards, pumps, valves, and sensors in the Vacuum Chromatography System (VCS) and Vacuum Sampling System (VSS). VARIANT II installation requirements cover unpacking, setup, and de-installation, with specifications for physical, electrical, and regulatory compliance. Hemoglobin analyzer maintenance instructions include materials, performance verification, and preventive schedules to maintain system reliability.

Safety precautions and theory of operation are emphasized throughout. Visual aids such as diagrams, timing charts, and drawings support the hemoglobin testing system troubleshooting guide and VARIANT II HPLC adjustment procedures.

Table of Contents (Extracted and Categorized with Subsections and Page References; No Separate Bookmarks or Index Present Beyond This Structure):

• 1.0 Introduction
  • 1.1 Introduction
  • 1.2 Theory of Operation
  • 1.3 System Overview
  • 1.4 Safety Precautions
• 2.0 Specifications
  • 2.1 Sampling Station Physical and Electrical Specifications
  • 2.2 Sampling Station Component Specifications
    • 2.2.1 Regulatory Compliance
  • 2.3 Chromatographic Station Physical and Electrical Specifications
  • 2.4 Chromatographic Station Component Specifications
    • 2.4.1 Regulatory Compliance
  • 2.5 Minimum Computer Specifications
• 3.0 Installation and De-Installation
  • 3.1 Installation Requirements
  • 3.2 Unpacking and Inspection
  • 3.3 VARIANT II System Setup
  • 3.4 De-Installation
• 4.0 VARIANT II Service Software
  • 4.1 Introduction
  • 4.2 VCS Service Software
  • 4.3 VSS Service Software
• 5.0 VCS Adjustment Procedures
  • 5.1 Introduction
  • 5.2 Column Heater
  • 5.3 Degasser
  • 5.4 Pump System
    • 5.4.1 Zero Pressure Adjustment
    • 5.4.2 High Pressure Calibration
    • 5.4.3 Pump Drive Current Adjustment
    • 5.4.4 Pump Flow Rate Adjustment
  • 5.5 Dynamic Mixer
  • 5.6 6 Port and 7 Port Valve Check
  • 5.7 Syringe Check
  • 5.8 Reservoir Unit
  • 5.9 Detector
• 6.0 VSS Adjustment Procedures
  • 6.1 Alignment Tools
  • 6.2 Alignment Order
  • 6.3 Interlock Key
  • 6.4 Rear Rack Guide Rail and Vertical Guide Plate
  • 6.5 Front Rack Vertical Guide Plate
  • 6.6 Rack Carrier Fingers
  • 6.7 Side Rack Guides (Conveyor Width)
  • 6.8 Checking the Sample Rack Movement
  • 6.9 Spin Head Vertical Alignment
  • 6.10 Spin Head Lowest Position
  • 6.11 Spin Head Limit (Hold) Position
  • 6.12 Tube Holder Unit Adjustment (Y-axis)
  • 6.13 Sample Needle Vertical Alignment
  • 6.14 Wash Tower X-axis (Needle at Wash Port)
  • 6.15 Tube Holder Head Adjustment (Needle Guide, X-axis)
  • 6.16 Sample Needle Y-axis at Wash Port
  • 6.17 Needle Y-axis at Sampling Position
  • 6.18 Needle Z-axis at the Dilution Well
  • 6.19 Needle Z-axis at the Sampling Adjust Position
  • 6.20 Sample Tube Z Positions
  • 6.21 Rear Rack Carrier Home and Limit
  • 6.22 Front Rack Carrier Home and Limit Positions
  • 6.23 Tube Sensor
  • 6.24 Rear Rack Carrier Spinning Position
  • 6.25 Barcode Reader Unit Adjustment (Barcode Tube Position)
  • 6.26 Spin Head X and Y Position Adjustment
  • 6.27 Rear Rack Carrier Sampling Position
  • 6.28 Rear Rack Carrier Barcode Reading Position Adjustment
  • 6.29 Syringe Home Position Flag
  • 6.30 Syringe Home Position Pull Air Adjustment
• 7.0 Replacement Procedures
  • 7.1 VCS Parts Replacement
    • 7.1.1 Main CPU Board (No. 242)
    • 7.1.2 Pump Board (No. 244C)
    • 7.1.3 Power Supply Board (No. 245B)
    • 7.1.4 Degasser Board (No. 246)
    • 7.1.5 Pump Unit
    • 7.1.6 Column Heater
    • 7.1.7 Detector
    • 7.1.8 Mixer
    • 7.1.9 Stir Bar and Gasket
    • 7.1.10 Vacuum Pump
    • 7.1.11 Syringe
    • 7.1.12 Lead Screw and Flange Nut
    • 7.1.13 6 and 7 Port Valves
  • 7.2 VSS Parts Replacement
    • 7.2.1 Syringe Plungers 5 mL ITO and 1 mL ITO
    • 7.2.2 Syringe Tubing Replacement
    • 7.2.3 Pinch Valves 1 and 2
    • 7.2.4 Syringe Home Sensor PCB
    • 7.2.5 Syringe Pump Lead Screw and Flange Nut
    • 7.2.6 Complete Sampling Head Unit
    • 7.2.7 Sampling Head Unit Z-axis Belt
    • 7.2.8 Sampling Head Unit Z-axis Motor
    • 7.2.9 Sampling Head Unit Z Lead Screw Set
    • 7.2.10 Sampling Head Y-axis Belt
    • 7.2.11 Sampling Head Y-axis Motor
    • 7.2.12 Needle Arm
    • 7.2.13 Sampling Head Y-axis Sensor Assembly
    • 7.2.14 Sampling Head Z-axis Sensor Assembly
    • 7.2.15 Complete Mixing Head Unit
    • 7.2.16 Spinning Head
    • 7.2.17 Spinning Assembly
    • 7.2.18 Spinning Drive Head Assembly
    • 7.2.19 Complete Tube Holder
    • 7.2.20 Conveyor Assembly Units Right and Left
    • 7.2.21 Conveyor Belt
• 8.0 Maintenance
  • 8.1 Materials
  • 8.2 VCS
  • 8.3 VSS
  • 8.4 Performance Verification
  • 8.5 VARIANT II Maintenance Report
• 9.0 Troubleshooting
  • 9.1 Chromatography Review
    • 9.1.1 Early Retention Times
    • 9.1.2 Late Retention Times
    • 9.1.3 Total Area Counts
    • 9.1.4 Detector Spikes
    • 9.1.5 Pressure
  • 9.2 Error Codes
  • 9.3 VSS Self Diagnostics
  • 9.4 Flow
  • 9.5 VARIANT II Timing Charts
• 10.0 Spare Parts
  • 10.1 VCS Parts
  • 10.2 VSS Parts
  • 10.3 Computer and Components
• Appendix A
  • Barcode Label Specifications
  • VCS Test Points
  • Pressure Voltage Table (Degasser)
  • Pump Board Modification Procedure
• Appendix B
  • Universal LIMS Adapter Configuration Chart
  • LIMS Connection on VARIANT II
  • Troubleshooting LIMS Transmission
  • Examples of Transmissions
• Appendix C
  • VCS Tubing Diagram
  • VSS Tubing Diagram
• Appendix D
  • VCS Mechanical Drawings
  • VSS Mechanical Drawings
• Appendix E
  • VCS Electronic Diagrams and Layer Drawings
• Appendix F
  • VSS Electronic Diagrams and Layer Drawings

The Bio-Rad VARIANT II service manual PDF focuses on technical service for the hemoglobin analyzer, emphasizing precise adjustments in the Bio-Rad VCS replacement parts guide and VARIANT II installation requirements for reliable operation.

File Details

• Manual Name: VARIANT II Hemoglobin Testing System Service Manual
• Models Covered: VARIANT II
• Year: 2003
• Manual PDF Quality: Scanned with clear text and diagrams; some sections may have artifacts
• No of Pages: 409