165 Setup with smartphone/tablet (Bluetooth)VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire47095-EN-1807025 Setup with smartphone/tablet (Bluetooth)5.1 ConnectingStart the "VEGA Tools" app and select the function "Setup". Thesmartphone/tablet searches automatically for Bluetooth-capableinstruments in the area.The message "Searching …" is displayed.The found instruments will be listed on the left side of the adjustmentwindow. The search is continued automatically.Select the requested instrument in the device list.The message "Connecting …" is displayed.For the first connection, the operating device and the sensor mustauthenticate each other. After successful authentication, the next con-nection functions without authentication.iOSDuring the pairing process, the following message is displayed: "Pair-ing request (Bluetooth), e.g. 12345678 wants to pair with your iPad".Press "Pair".AndroidThe coupling passes through automatically.For authentication, enter in the next menu window the 4-digit PIN. Youcan find this PIN on:• Type label support on sensor cable• A supplementary sheet in the sensor packagingNote:If an incorrect sensor PIN is entered, the PIN can only be enteredagain after a delay time. This time gets longer after each incorrectentry.The message "Waiting for authentication" is displayed on the smart-phone/tablet.After connection, the sensor adjustment menu is displayed on therespective adjustment instrument.If the connection is interrupted, e.g. due to a too large distance be-tween sensor and operating device, this is displayed on the operatingdevice. The message disappears when the connection is restored.It is recommended to change the default setting of the sensor PIN toyour own sensor PIN. To do this, go to the menu item "Lock adjust-ment".Connecting …AuthenticateEnter PINConnectedChange sensor PIN