Operation

KL49344 RAPT Laser Level Sensor | Operation

The RAPT Laser Level Sensor is a BLE (Bluetooth Low Energy) device. It has been designed to maximise battery life.

In order to maximise both battery life and functionality, the RAPT Laser Level Sensor has several modes of operation.

These can be viewed and changed in the RAPT Brew app.

The modes are accessed through the Setup button of the RAPT Laser Level Sensor device screen in the RAPT Brew app.

The RAPT Laser Level Sensor can pair with the RAPT Brew App. It is also designed (and ideally used) to be paired with the RAPT Kegerator Screen Board

In the RAPT Brew App Laser Level Sensor Device screen, you will see the last known value and a visual representation of the level

You can select to view Charts in order to see a visual representation of the keg level over time

The Setup button allows you to choose the Mode for the RAPT Laser Level Sensor

Modes

The RAPT Laser Level Sensor has 4 modes of operation

The selected mode can have a significant effect on battery life

Smart Mode

This is the default mode. In Smart Mode, the RAPT Laser Level Sensor will broadcast a Bluetooth signal frequently enough for the RAPT Brew App to detect it. If you will be using the RAPT Laser Level Sensor in conjunction with the RAPT Brew App instead of bonded to the RAPT Kegerator Screen Board or another RAPT Bluetooth Device, then Smart Mode should be selected

Ultra Low Energy Mode

In Ultra Low Energy Mode, the RAPT Kegerator Screen Board will not broadcast a Bluetooth signal with enough frequency to be picked up by your phone. It must be bonded to the RAPT Kegerator Screen Board or another RAPT Bluetooth Device before Ultra Low Energy Mode is selected.

Ultra Low Energy Mode will dramatically increase battery life.

Important Note: The only way to exit Ultra Low Energy Mode is by selecting a different mode on the RAPT Laser Level Sensor - refer Operation for more detail

Session Mode

Session Mode cannot be manually selected. Session Mode will be entered automatically if the RAPT Kegerator Screen Board or another RAPT Bluetooth Device, detects a volume change in line with a frequent decrease in volume of the keg. Session Mode will end automatically once the volume of the keg is detected to drop less frequently.

Live Stream Mode

Live Stream mode can be manually toggled using the Live Stream button in the RAPT Brew App (Pro subscription only)

Live Stream mode will continuously broadcast telemetry until toggled off or if the RAPT Laser Level Sensor. This can be useful for filling kegs or other activities which require real time telemetry.

RAPT Laser Level Sensor User Guide Buttons/Lights Add batteries it will initialise and boot up Button 1 Left Power start up Hold button until 3 fast red flashes shuts down laser Click and hold boots up – three green flashes – ready to go Click once – shows mode/status flash: Purple – not configured not registered Green flash 1 2 3 or 4 1: registered low power mode 2 registered smart mode 3 having a session mode 4 live stream mode Button 2 Right Communication Bluetooth Click once and let go – takes a measurement and transmits it regardless of state Click and hold when in purple (unregistered mode) blue LED blinking – means laser sensor is advertising and ready to register Firmware update via Bluetooth blue LED flashes very fast to indicate lots of data transfer Click and hold button 1 then click and hold button 2 then hold both for 5 seconds jumo inot red warning flash keep holding both buttons flashing will stop and it will do full factory reset