User Manuals: Hettich EBA 20S Benchtop Centrifuge

User Manuals: Hettich EBA 20S Benchtop Centrifuge

Manuals and User Guides for Hettich EBA 20S Benchtop Centrifuge. We have 1 Hettich EBA 20S Benchtop Centrifuge manual available for free PDF download: Repair Instructions

Hettich EBA 20S Repair Instructions

Hettich EBA 20S Repair Instructions (34 pages)

Brand: Hettich | Category: Laboratory Equipment | Size: 0 MB

Table of Contents

Table of Contents

3
- 1 Introduction
  
  5
- 2 Symbol Meanings
  
  5
- 3 Description of the Centrifuge
  
  6
  - Power Board
    6
  - Control Panel
    6
  - Control Panel A3
    7
  - Power Board A1
    7
  - Motor M1
    8
  - Speed Sensor B3
    8
  - Brake Resistor R1 and Overtemperature Fuse F3
    8
  - Lid Lock Y1
    8
  - Imbalance Switch S 2
    8
- 4 Troubleshooting Procedures
  
  9
- 5 Error Messages
  
  10
  - Mains Reset
    10
  - Brief Description
    10
  - Description and Elimination of Errors
    11
  - Defects Without Error Indications
    16
- 6 Settings and Enquiries
  
  18
  - Setting the Machine Version
    18
  - Enquiry the Machine Version
    19
  - Enquiry the Programme Versions
    20
  - Brake Adjustment
    20
  - Lid Lock Control
    21
  - Imbalance Switch-Off
    21
- 7 Change Mains Input Fuse
  
  22
- 8 Functional Check after a Repair
  
  22
Assembling and Disassembling Components

23
- Control Panel A3
  24
- Motor M1 / Speed Sensor B3 / Rubber-Metal Bearing
  24
- Power Board A1
  24
- Appliance Plug with Mains Switch
  25
- Brake Resistor R1
  25
- Flat Ribbon Cable
  25
- Imbalance Switch S2
  25
- Lid Lock Y1
  25
- Overtemperature Fuse F3
  25
- 10 Circuit Diagrams
  
  26
  - Circuit Diagram and Plug Assignment
    27
  - Signals and Test Results
    28
    
    Speed Sensor B3 (Tacho)
    28
    
    Motor
    28
    
    Brake Resistor R1 and Overtemperature Fuse F3
    29
    
    Lid Lock Y1
    29
    
    Imbalance Switch
    30
    
    Intermediate Voltage on Power Board A1
    30
- 11 Technical Specification
  
  31
- 12 Skeleton Construction of EBA 20S
  
  32
  - Lid Lock Y1 S404 A1
    32
  - Brake Resistor R1 S405 A1
    32
  - Overtemperature Fuse F3 S405 A1
    32
  - 13 Appliance Plug
    32
  - 16 Imbalance Switch
    32
- 13 Index
  
  33

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