Manual #650345
Compass module mounting:
Do not mount the module in the engine compartment; it should be mounted in interior of the vehicle. Avoid
any strong magnets such as fan motors and speakers, high current wiring such as alternator or fan wires, or steel bars.
Sheet steel is much better than steel bars or brackets since the bars and brackets can bend the magnetic fields
causing compass errors. Some roads have steel bars in them for reinforcement which can cause interference.
Mounting the module higher in the vehicle helps eliminate this. Magnetic interference drops off very rapidly with
distance, so even small movements away from the interference can help significantly.
The BIM unit should be mounted flat and level with the road. The module can be mounted directly to a flat
surface in the vehicle or the supplied mounting bracket can be used. The bracket can be attached to the module so
that it extends out the left, right, front, or back. The flat mount extending out can be bent to simplify mounting the
module to a vertical or angled location. The bend should be done between the mounting holes to provide a
stronger support. It is recommended that the bracket be clamped into a vise and a hammer used to make the
bend between the mounting holes as shown in the diagram below.
The bubble level in the lower left corner of the module can be used to assist in leveling the module when
mounting it. If at least half of the bubble is inside the dark circle then the module is level enough. The module can be
oriented with the label and display facing up or down and can have the wiring terminals facing towards the front of the
vehicle or the back of the vehicle. The setup section on the following page shows how to set up the module for
different mounting positions so that it shows the correct headings.
GND PWR
T-
T+
P
W
R
G
N
D
BIM-17-1
COMPASS / TEMP
A
IR
+
A
IR
-
I/
O
I/
O
www.dakotadigital.com
605-332-6513
GND PWR
T-
T+
P
W
R
G
N
D
BIM-17-1
COMPASS / TEMP
A
IR
+
A
IR
-
I/
O
I/
O
www.dakotadigital.com
605-332-6513
