digi tacho instructions
Tachomaster: Drivers Guide to the Digital Tachograph.pdf
Taken from The Digital Tachograph Vehicle Unit: The Digital Tachograph Vehicle Unit (VU) is an electronic device that is able to record and store driver and vehicle records. The VU must have the ability to store this data for at least 365 days and must make it possible to download that data. Operators based in Great Britain are obliged to download the data at least every 56 days, and then store it safely and make it available for inspection by the authorities for the next twelve months.
Data recorded by the VU include vehicle speed, distance traveled and other system related parameters. General vehicle speed data is limited to 24 driving hours and is recorded only in the memory of the Digital Tachograph Vehicle Unit. It is NOT written in the Driver Card. Details of excessive speeds (overspeeds) are recorded however, and analysis of the data can show these events and other useful information such as ‘harsh braking’.
Operating Instructions Tachograph 1324.pdf
This is an Operating Instructions for Tachograph 1324 attached on Volvo vehicles, this device combines the functions of a clock and a speedometer and records the vehicle’s speed to record whether it is in moving condition or in a stationary condition.

