3
Contents
VEGAPULS 21 • Two-wire 4 … 20 mA/HART
58351-EN-191014
11 Diagnostics and servicing .................................................................................................... 33
11.1 Maintenance .................................................................................................................. 33
11.2 Rectify faults ................................................................................................................... 33
11.3 Diagnosis, fault messages ............................................................................................. 34
11.4 Status messages according to NE 107 .......................................................................... 34
11.5 Treatment of measurement errors .................................................................................. 38
11.6 Software update ............................................................................................................. 41
11.7 How to proceed if a repair is necessary .......................................................................... 42
12 Dismount................................................................................................................................. 43
12.1 Dismounting steps.......................................................................................................... 43
12.2 Disposal ......................................................................................................................... 43
13 Certificates and approvals .................................................................................................... 44
13.1 Environmental instructions ............................................................................................. 44
14 Supplement ............................................................................................................................ 45
14.1 Technical data ................................................................................................................ 45
14.2 Dimensions .................................................................................................................... 50
14.3 Industrial property rights ................................................................................................. 51
14.4 Hash function acc. to mbed TLS ..................................................................................... 51
14.5 Trademark ...................................................................................................................... 51
Editing status: 2019-10-10
