Installation

IMPORTANT: This equipment is not suitable for use in locations where children are likely to be present.

 

Mount the 3DM-GQ7

Mechanical provides dimensions and tolerances as well as cabling and connector specifications and part numbers.

Properly Power the 3DM-GQ7

WARNING:Only use power supplies within the operating range of the sensor, or permanent sensor damage or personal injury could result. Observe connection polarity.

 

The 3DM-GQ7 offers a lot of flexibility in powering. However, there are some power configurations that could harm the 3DM-GQ7 or attached equipment. It is critical that user's read the section on Powering prior to installation.

 

Apply the Proper Mounting Transform

In its default state, the labeled axes of the 3DM-GQ7 are assumed to be aligned with the vehicle frame (X axis in the direction of travel, Z axis down). If the device is mounted in an orientation where the sensor frame axes are not aligned to the vehicle axes, then a sensor-to-vehicle transform must be applied to correct for this misalignment. See the Vehicle Frame section for details on applying this transformation.

 

Install the Antenna(s)

WARNING: If removing the MMCX plug connectors from the 3DM-GQ7 it is critical to follow the instructions on the MMCX Connector Warning page. Failure to do so may cause irreparable damage to the 3DM-GQ7 and void the warranty.

 

The GNSS antenna(s) must also be mounted and the offsets in relation to the 3DM-GQ7 must be input into the Navigation Filter. See Antenna(s) for details on installing the antenna and accounting for offsets.

 

Input the Vehicle Reference Arm Offset

The Vehicle Reference Arm Offset enables the 3DM-GQ7 to account for vehicle dynamics. This step is optional. See Vehicle Reference Point Offset for more details.

 

Perform a Magnetometer Calibration

If a magnetometer is being used as a heading aiding measurement, a magnetometer calibration with the 3DM-GQ7 installed in the application and after all other components have been installed is crucial in ensuring accurate heading measurements. See Magnetometer Calibration for details on performing this calibration using our convenient desktop application, SensorConnect.