Page EN-12 SITRANS Probe LU ñ QUICK START MANUAL 7ML19985QR81mmmmmEnglish.Using P837 and P838 (continued)a. Determine the actual distance from the transducer face to the material level.b. Select P838 and key in [distance to material level ñ 0.5 m].c. Select P837, then press 2 (Learn) and ENTER . P837 will automatically revert to 1(use Learned TVT) after a few seconds.9. Return to RUNPress PROGRAM to return to RUN mode: setup is complete.SITRANS Probe LU Communications: HARTï You will need the full manual to acquire the list of applicable parameters.ï Please contact your local representative concerning the availability of the HART DDfor SITRANS Probe LU.ï We recommend that you use SIMATIC Process Device Manager (PDM) to programyour instrument.MaintenanceSITRANS Probe LU requires no maintenance or cleaning.Unit Repair and Excluded LiabilityFor detailed information, please see the inside back cover.Notes:ï Use this function only if there is a minimum distance of 2 meters from SITRANS Probe LUto the material. This function works best if the vessel is empty or nearly empty.ï Set P837 and P838 during start up, if possible.ï If the vessel contains an agitator, the agitator should be running.Note: SeemA Output with Level, Space, and Distance operation on page 10 for anillustration of the mA output with different modes of operation.