Siemens SITRANS LG250 Operating Instructions Manual

Also see for SITRANS LG250: Operating instructions Operating instructions Operating instructions Operating instructions

Contents

58 PBD-51041387SITRANS LG250 - Operating Instructions46200-EN-160517• Modification of a parameter• Switch-on and switch-off times• Status messages (according to NE 107)• Error messages (according to NE 107)The data are read out via a PC with PACTware/DTM or the controlsystem with EDD.The echo curves are stored with date and time and the correspondingecho data. The memory is divided into two sections:Echo curve of the setup: This is used as reference echo curve forthe measurement conditions during setup. Changes in the measure-ment conditions during operation or buildup on the sensor can thusbe recognized. The echo curve of the setup is stored via:• PC with PACTware/DTM• Control system with EDD• Display and adjustment moduleFurther echo curves: Up to 10 echo curves can be stored in a ringbuffer in this memory section. Further echo curves are stored via:• PC with PACTware/DTM• Control system with EDD• Display and adjustment module10.3 Status messagesThe instrument features self-monitoring and diagnostics according toNE 107 and VDI/VDE 2650. In addition to the status messages in thefollowing tables, detailed error messages are available under menuitem "Diagnostics" via the display and adjustment module, PACTware/DTM and EDD.The status messages are divided into the following categories:• Failure• Function check• Out of specification• Maintenance requirementand explained by pictographs:41 2 3Fig. 25: Pictographs of the status messages1 Failure - red2 Out of specification - yellow3 Function check - orange4 Maintenance - blueFailure: Due to a malfunction in the instrument, a failure message isoutputted.Echo curve memoryStatus messages