Honeywell 854 ATG Series - Introduction to Series 854 ATG Level Gauge; Principle of Measurement Explained

Introduction
Instruction manual 854 ATG Page 5
5 Maintenance ................................................................................................................................................ 36
5.1 Preventive maintenance .................................................................................................................... 36
5.2 Instrument covers .............................................................................................................................. 37
5.3 Drum compartment ........................................................................................................................... 38
5.3.1 Detailed description ............................................................................................................ 38
5.3.2 Removing the measuring drum ........................................................................................... 39
5.3.3 Replacing the drum bearings .............................................................................................. 40
5.4 The electronic compartment.............................................................................................................. 41
5.4.1 Detailed description ............................................................................................................ 41
5.4.2 Dismantling the electronic compartment............................................................................. 42
5.4.3 Replacing software ............................................................................................................. 43
5.4.4 Initializing NOVRAM ............................................................................................................ 43
5.5 Calibrating force transducer .............................................................................................................. 44
5.6 Synchronizing the reference encoder ................................................................................................ 45
6 Trouble shooting .......................................................................................................................................... 46
6.1 Problems with displacer movement .................................................................................................. 46
6.2 XPU error code (item EP) ................................................................................................................. 47
6.3 SPU error code (item ES) ................................................................................................................. 47
6.4 SPU status request (item QS) ........................................................................................................... 48
Appendix A Article and part numbers ..................................................................................................... 49
Appendix B Additional information on displacers ................................................................................... 52
Appendix C ASCII table .......................................................................................................................... 54
Appendix D Display formats ................................................................................................................... 55
Appendix E PCB layout .......................................................................................................................... 60
Appendix F Related documents ............................................................................................................. 61
Index ......................................................................................................................................................... 62