Test Function No. 11 - Read Units Display

• This function is locked and needs to be unlocked via the procedure in Function Test No. 19. The following data can be scrolled through using the trip reset button. The unit coding of the on-board computer, clock and ambient temperature is programmed at the factory during build and is stored in the EEPROM. This coding can be queried using this function. The unit coding is shown in hexadecimal form for each individual byte. The following shows the coding for bytes 1 and 2. When byte 3 is reached the display changes to byte 1 again.
  • 'EINHEIT 1: 00' - hexadecimal value for byte 1.
  • 'EINHEIT 2: 00' - hexadecimal value for byte 2.

The units for °C or °F or 24 hour or 12 hour clock for example, can be changed using T4 to change the bit assignments for bytes 1, 2 and 3. Refer to T4 for details of units which can be changed.