Silver Thumbwheel

How do I turn the thumbwheel

Turn the wheel using your thumb and finger. Do not block the line of sight between the WallCast unit and the LED Sensor.

Turn the wheel until the number shown in the picture on this page is shown on the LED Sensor

I have rotated the thumbwheel all the way and the number has not changed

Make sure there are no high protrusions on the board such as magnets stuck to the board, cards, post it notes etc. between the orange marker cross and the WallCast unit. If there are remove them. Note that nothing should be stuck to your board. Your board surface needs to be clean and free from items. See the Install Guide.

If this does not solve your problem go to support.prometheanworld.com. A new LED Sensor or WallCast unit may be required.

When I turn the thumbwheel the number jumps from a high number to a lower number

The silver thumbwheel is affected by force and pulling so it is better if your turn it carefully and using light pressure while standing so that your arm is level with the wheel rather than reaching up to it. Use a ladder or platform to achieve this. Care must be taken when using ladders. Equipment must be in good condition. Check for loose steps, broken rivets etc. before use.