Siemens SITRANS LG250 Operating Instructions Manual

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

Contents

38 PBD-51041056SITRANS LG250 - Operating Instructions44573-EN-140321Caution:During simulation, the simulated value is outputted as 4 … 20 mA cur-rent value and digital HART signal.Push the [ESC] key to deactivate the simulation.Information:The simulation is terminated automatically 60 minutes after the lastkey has been pressed.With the menu item "Setup" the echo curve it is possible to save atthe time of setup. This is generally recommended; for using the AssetManagement functions it is necessary. If possible, the curve shouldbe saved with a low level in the vessel.With this, you can detect signal changes over the operating time. Withthe adjustment software PACTware and the PC, the high-resolutionecho curve can be displayed and used to compare the echo curve ofthe setup with the actual echo curve.The function "Echo curve memory" enables storing echo curves ofthe measurement.Under the sub-menu item "Echo curve memory" you can store thecurrent echo curve.Parameter settings for recording the echo curve and the settings ofthe echo curve itself can be carried out in the adjustment softwarePACTware.With the adjustment software PACTware and the PC the high-reso-lution echo curve can be displayed and used later on to assess thequality of the measurement.Entering a 4-digit PIN protects the sensor data against unauthorizedaccess and unintentional modification. In this menu item, the PIN isdisplayed or edited and changed. However, this menu item is onlyavailable if adjustment is enabled in the menu "Lock/Release setup/adjustment".Diagnostics - Echo curvememoryAdditional settings - PIN