Mounting Boreas

When installing Boreas into a vehicle, the mounting position and alignment of the unit are essential for achieving optimal performance. Position refers to the physical location within the vehicle where the unit is installed while alignment refers to the orientation of the unit with respect to the orientation of the vehicle.

When planning a mounting location for Boreas, be mindful of the following recommendations.

  • Mount the unit in an area that will not exceed the rated temperature range, and with minimal temperature fluctuations.
  • Mount the unit away from high levels of vibration where possible.
  • Mount the unit within several metres of the GNSS antennas where possible.
  • Mount close to the centre of gravity of the vehicle where possible.
  • Mount the unit at least 10 cm away (and preferably as far as possible) from sources of dynamic magnetic interference such as high current wiring or large motors for best performance.
  • Do not obstruct the two vents on the side of the enclosure unless Atmospheric Altitude will be disabled.

Boreas is mounted using the four 4.4 mm diameter mounting holes on the base of the enclosure (see Bottom View of Boreas Mounting Plate below for mounting plate and hole guide).

 

Bottom View of Boreas Mounting Plate

For precision mounting, an alignment hole 6 mm and an alignment slot 6 mm x 7 mm are provided at the middle edge of the enclosure. They are designed for 6 mm dowel pins. Suitable alignment dowel pins based on DIN 6321 are Norelem Locating Pin 02020-206 or equivalent.

Boreas Mounting Holes and Alignment Pins

It is recommended that M4 stainless steel washers with an outside diameter of 9 mm are used under the bolts. Blue loctite can also be used to prevent the screws from loosening over time.

To ensure precision mounting repeatability,

  1. Place the unit in position on the alignment pins and apply gentle pressure in the positive y-axis direction.
  2. Install the M4 mounting screws.
  3. Tighten the stainless steel bolts in a clockwise direction to a torque of 1 Nm.

For instructions on alignment of the unit within a vehicle, see Mounting Alignment.