298 Diagnosis, asset management and serviceVEGAPULS WL S 61 • 4 … 20 mA54408-01-190806• Operating system Windows 10• DTM Collection 05/2019 or newer• Bluetooth 4.0 LE or newerActivate Bluetooth connectionActivate the Bluetooth connection via the VEGAproject assistant.Note:Older systems do not always have anintegrated Bluetooth LE. In these cases,a Bluetooth USB adapter is required.Activate the Bluetooth USB adaptervia the VEGA project assistant (seesupplementary instructions "BluetoothUSB adapter").After activating the integrated Bluetooth or theBluetooth USB adapter, devices with Bluetoothare found and created in the project tree.7.2 ConnectingConnecting …Select the requested device for the online para-meter adjustment in the project tree.AuthenticateThe window "Authentication" is displayed. Forthe first connection, the PC and the sensormust authenticate each other. After successfulauthentication, the next connection functionswithout authentication.Enter PINFor authentication, enter in the next menu win-dow the 4-digit PIN.Note:If an incorrect sensor PIN is entered,the PIN can only be entered again aftera delay time. This time gets longer aftereach incorrect entry.ConnectedAfter connection, the sensor DTM appears.If the connection is interrupted, e.g. due to a toolarge distance between sensor and PC, this isdisplayed on the PC. The message disappearswhen the connection is restored.Change sensor PINIt is recommended to change the default settingof the sensor PIN to your own sensor PIN. To dothis, go to the menu "Additional adjustments",menu item "PIN".7.3 Parameter adjustmentPrerequisitesFor parameter adjustment of the instrumentvia a Windows PC, the configuration softwarePACTware and a suitable instrument driver(DTM) according to FDT standard are requi-red. The latest PACTware version as well as allavailable DTMs are compiled in a DTM Collec-tion. The DTMs can also be integrated into otherframe applications according to FDT standard.Abb. 22: Example of a DTM view - Setup, sensoradjustment8 Diagnosis, asset manage-ment and service8.1 MaintenanceMaintenanceIf the device is used properly, no special mainte-nance is required in normal operation.CleaningThe cleaning helps that the type label and mar-kings on the instrument are visible.Take note of the following:• Use only cleaning agents which do not cor-rode the housings, type label and seals• Use only cleaning methods correspondingto the housing protection rating