Siemens digital tacho easy guide

danj:
thankyou all i know is i need to change the modes and thats about it…

You need to know more than that. You need to know how to make manual entries and how to enter the start and finish country for starters.

However if you really only want to know how to change the mode you do it in exactly the same way as you do on an analogue tacho, you just press a button until the mode you want is shown in the display.