4 EB 8389 EN
Contents
4.6 Drive signal diagram steady-state .................................................................49
4.6.1 Analysis and monitoring ............................................................................... 51
4.6.2 Resetting single status messages ....................................................................51
4.7 Drive signal diagram hysteresis .....................................................................53
4.7.1 Analysis and monitoring ............................................................................... 55
4.7.2 Resetting single status messages ....................................................................56
4.8 Trend of travel end position ........................................................................... 59
4.8.1 Analysis and monitoring ............................................................................... 60
4.8.2 Resetting single status messages ....................................................................61
5 Tests ...........................................................................................................61
5.1 Drive signal diagram steady-state .................................................................63
5.1.1 Analysis and monitoring ............................................................................... 65
5.1.2 Resetting single status messages ....................................................................65
5.2 Drive signal diagram hysteresis .....................................................................67
5.2.1 Analysis and monitoring ............................................................................... 68
5.2.2 Resetting single status messages ....................................................................69
5.3 Static characteristic ......................................................................................70
5.3.1 Resetting single status messages ....................................................................71
5.4 Partial stroke test (PST) ..................................................................................75
5.4.1 Start triggered by on/off valve ......................................................................80
5.4.2 Start triggered by the binary input.................................................................80
5.4.3 Analysis and monitoring ............................................................................... 81
5.4.4 Resetting single status messages ....................................................................82
5.4.5 Step response ..............................................................................................82
5.5 Full stroke test (FST) ......................................................................................85
5.5.1 Analysis and monitoring ............................................................................... 88
5.5.2 Resetting single status messages ....................................................................89
6 Dynamic HART
®
variables ............................................................................90
7 Leakage sensor ...........................................................................................93
7.1 Start-up of the leakage sensor ....................................................................... 94
7.1.1 Reference test...............................................................................................94
7.1.2 Repetition test ..............................................................................................97
7.2 Short-term monitoring ................................................................................103
7.2.1 Resetting single status messages ..................................................................104
7.3 Long-term monitoring .................................................................................104
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