ABB LWT300 series User Manual page 4

Setting data filtering parameters.................... 47
Selecting a maximum level rate .................. 47
Setting up a median filter .............................48
Setting up a damping period ......................48
Setting process parameters.............................. 49
Setting process alarms ................................. 49
Setting process safety parameters ...........50
Managing lost echoes.....................................51
Setting up linearization ...................................... 52
Understanding linearization ........................ 52
Accessing the linearization function ......... 54
Setting the linearization input unit ........... 54
Setting the linearization output unit ........ 54
Setting the maximum volume/flow value 54
Setting vessel parameters ........................... 54
Setting up linearization points ................... 55
Saving your linearization table .................... 55
Enabling the linearization function ........... 55
Managing saved linearization tables ........ 56
Managing device setups ..................................... 57
Saving a default user setup.......................... 57
Resetting to default user setup .................. 57
Resetting to factory default ........................ 57
7 Setting calibration parameters
Setting level calibration parameters .............. 59
Changing the empty/zero value ................. 59
Changing the full/span value.......................60
Adding a level offset.......................................60
Adding a sensor offset .................................. 61
Setting upper/lower (4 - 20 mA) reference
values .................................................................. 61
Setting 4 - 20 mA D/A trim ................................. 62
Setting the 4 mA trim .................................... 62
Setting the 20 mA trim .................................. 62
Resetting the D/A trim .................................. 63
Setting a current simulation ........................ 63
8 Configuring communications
Setting dynamic values ....................................... 65
Activating multidrop mode ............................... 66
Setting devices address ..................................... 66
Locating an instrument with tags ................... 66
Browsing communication info ......................... 66
9 Maintenance and troubleshooting
Diagnosing problems .......................................... 67
Browsing the diagnostics history .............. 68
Clearing the diagnostic history .................. 68
iv
User Guide
Event codes and recommendations .......... 69
Masking classes of events ............................ 70
Diagnosing from a waveform .............................71
Introducing the waveform display ..............71
Accessing the waveform display .................71
Navigating through echoes ......................... 72
Recording a waveform ................................... 72
Performing simulations and tests ................... 73
Performing standard simulations .............. 73
Performing current simulations ................. 73
Obtaining device status data ............................ 74
Probe length ..................................................... 74
Terminal voltage .............................................. 74
Electronics temperature ............................... 74
Total run time ................................................... 75
Accessing device information ........................... 75
A Specifications ..............................
B HMI menu tree ..............................
A77
B79