GE Masoneilan 12420 - Page 2

GE Masoneilan 12420

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Table of Contents

Default Chapter4
- Table of Contents4
General5
Spare Parts5
After Sales Support5
Training5
1 Description - Operation6
- Principle of Operation6
- Signal Processing6
2 Protection Standards7
- Atex / Iece Ertifications7
- FM / Fmc CERTIFICATIONS8
- General Requirements8
- Flameproof and Dust Ignition Proof Requirements8
- Intrinsically Safe Requirements8
- Description of Explosion Proof and Intrinsic Safety Marking9
- Repair10
- Notes for Intrinsically Safe Installation12
3 Marking - Numbering System14
- Marking14
- Numbering System14
4 Installation15
- Storage and Conditions at Delivery15
- Mounting on Site15
- External Mounting15
- Internal Mounting16
5 Case Description17
- Electronic Compartment17
- Mechanism Compartment17
- Mtbf17
- Connection Compartment17
- Electric Circuit17
- Wiring and Connections18
- Allowable Supply Voltages18
- Maximum Power18
- Output Signal and Load Resistance18
6 Operating the Instrument21
- General Principles21
- The Liquid Crystal Display21
- Pushbuttons21
- Operating Modes21
- (Lcd)21
  - Pushbuttons Menus Description22
7 Commissioning24
- Instrument Coupling to the Torque Tube24
- Transmitter Configuration26
- Transmitter Calibration27
- Calibration on Site with Process Fluids32
- Calibration with Mechanical Stops33
- Calibration of Specific Gravity Meter35
- Mechanical Stops Setting36
- Torque Tube Temperature Compensation38
- Controller Function40
8 Safety Manual for Sil Applications46
- Relevant Standards46
- Terms and Definitions46
- Safety Requirements47
- Afety Integrity of the Hardware47
- Safety Characteristics47
- Assumptions47
- Safety Integrity of the Hardware47
- (Pfd)47
9 Maintenance50
- Removal of 12400 Case from Torque Tube50
- Installation of 12400 Case on a Torque Tube50
- O N a 12200/300/400 Series Torque Tube50
- On a 12120 or 12800 Series Torque Tube51
- Removal of 12400 Case and Torque Tube S52
- Mounting of Dlt Case and Torque Tube S53
- Reverse Instrument Case Mounting Position Versus to Displacer Position ( Left or Right )54
- Replacement of Elec54
- Components54
Troubleshooting55
- No Signal55
- Existing Signal but Nothing on Lcd Display55
- Steady Signal, no Change When Level Varies55
- Output Signal Differs from Value Displayed on Lcd55
- N Ohart ® Communication56
- Output Signal Does Not Match with the Liquid Level (Linearity Issue)56
- View Error Diagnostics Messages57
Appendix A - NORMAL Menu / SETUP Menu63
Appendix B - BASIC SETUP Menu66
Appendix C - ADVANCED SETUP Menu70
Appendix D - ENGINEERING UNIT Menu73
Appendix E - 4-20Ma GENERATOR Menu75
Appendix F - VIEW DATA Menu77
Appendix G - FAILSAFE / VIEW ERROR Menus79

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