Siemens 7ML5430, Operating Instructions Manual, Page: 6 / 111

Table of contents
SITRANS Probe LR with mA/HART
6
Operating Instructions, 05/2019, A5E32337711-AC
7.27.4 P838 Auto false echo suppression distance .......................................................................... 67
7.27.5 P839 TVT hover level ............................................................................................................ 69
7.28 Test (P900 to P924) ............................................................................................................... 69
7.28.1 P900 Software revision number ............................................................................................. 69
7.28.2 P901 Memory test .................................................................................................................. 69
7.29 Measurement ......................................................................................................................... 69
7.29.1 P911 mA output value (HART/mA only) ................................................................................ 69
7.29.2 P920 Reading measurement ................................................................................................. 70
7.29.3 P921 Material measurement .................................................................................................. 70
7.29.4 P922 Space measurement .................................................................................................... 70
7.29.5 P923 Distance measurement ................................................................................................. 70
7.29.6 P924 Volume measurement .................................................................................................. 70
7.29.7 P999 Master reset .................................................................................................................. 71
8 Service and maintenance ........................................................................................................................ 72
8.1
Maintenance and repair work ................................................................................................. 72
8.2 Return procedure ................................................................................................................... 72
8.3 Disposal ................................................................................................................................. 73
9 Troubleshooting ....................................................................................................................................... 74
9.1
General fault codes ................................................................................................................ 74
9.2 Fault codes (firmware revision 3.02 or higher) ...................................................................... 74
9.3 Fault codes (firmware revision 1.05 or earlier) ...................................................................... 76
9.4 Operation troubleshooting ...................................................................................................... 78
10 Technical data ......................................................................................................................................... 80
10.1
Power ..................................................................................................................................... 80
10.2 Performance ........................................................................................................................... 81
10.3 Construction ........................................................................................................................... 82
10.4 Operating conditions .............................................................................................................. 82
10.5 Process .................................................................................................................................. 82
10.6 Approvals ............................................................................................................................... 83
11 Dimension drawing .................................................................................................................................. 84
11.1
SITRANS Probe LR dimensions ............................................................................................ 84
A Technical reference ................................................................................................................................. 86
A.1
Principles of operation ........................................................................................................... 86
A.2 Transceiver ............................................................................................................................ 86
A.3 Near blanking ......................................................................................................................... 87
A.4 Loss of echo (LOE) ................................................................................................................ 87
A.5 Range extension .................................................................................................................... 88
A.6 False-echo suppression ......................................................................................................... 88