Contents
Chapter 1 Maintenance ..................................................................................................................1
1.1 Precautions for meter maintenance .............................................................................................1
1.2 Field hydrostatic pressure testing procedures ..............................................................................2
1.2.1 T-Slot Transducer Assembly and Mount ........................................................................ 2
1.3 Routine maintenance .................................................................................................................. 3
1.3.1 Maintenance logs and reports ....................................................................................... 3
1.3.2 Pipeline cleaning maintenance ......................................................................................7
1.3.3 Visual inspection ........................................................................................................... 7
Chapter 2 Troubleshooting ............................................................................................................ 9
2.1 Meter status alarms ..................................................................................................................... 9
2.1.1 Check status ................................................................................................................10
2.1.2 System alarm .............................................................................................................. 11
2.1.3 Chord A, Chord B, Chord C and Chord D alarm ............................................................ 11
2.1.4 Field I/O alarm .............................................................................................................11
2.1.5 Validity alarm .............................................................................................................. 11
2.1.6 Comms alarm ..............................................................................................................12
2.1.7 Communications .........................................................................................................12
Chapter 3 Meter repairs ............................................................................................................... 13
3.1 Precautions ................................................................................................................................13
3.2 T-Slot transducer removal and installation .................................................................................15
3.2.1 Transducer removal .................................................................................................... 15
3.2.2 Install transducers ....................................................................................................... 17
3.2.3 Replace the transformers ............................................................................................ 20
3.2.4 Modifying the calibration parameters ......................................................................... 20
3.3 Transducer holder removal and installation ............................................................................... 24
3.3.1 Remove the transducer holder .................................................................................... 24
3.3.2 Install the transducer holder ........................................................................................26
3.4 Transducer cable removal and installation ................................................................................. 28
3.4.1 Replace transducer cables ...........................................................................................29
3.5 Replace the meter electronics ....................................................................................................31
3.5.1 Replace CPU module or Optional I/O module .............................................................. 32
3.5.2 Fuse replacement ........................................................................................................35
3.5.3 Replace Backplane, I.S. Barrier or Power Supply board .................................................36
3.6 Acquisition Module replacement ............................................................................................... 43
Appendices and reference
Appendix A Conversion factors ....................................................................................................... 51
A.1 Conversion factors per units of measurement ............................................................................51
A.2 K-Factor and inverse K-Factor conversions ................................................................................. 52
Appendix B Engineering drawings .................................................................................................. 55
B.1 Daniel 3410 Series Ultrasonic Flow Meter Drawings ................................................................... 55
Contents
Maintenance and Troubleshooting manual i