The following illustrates the recommended power connections for using a vehicle electrical system as the eDAQXR system power source. The included diagrams are not intended to be complete, detailed instructions.
CAUTION
Connection to the positive power terminal without proper grounding may result in damage to the eDAQXR system.
NOTE
When using additional cable length to make the connections, select an appropriate gauge wire to carry sufficient current (≥10 amps) and voltage (≥12 volts).
The following diagram illustrates the proper method of powering an eDAQXR system with a direct connection to a vehicle battery that has a permanent ground connection to the vehicle chassis.
An alternate method, shown below, uses a vehicle electrical system or harness which may be a switching supply such as an ignition or a relay type device.
CAUTION
This method, while feasible, is not recommended and cannot be guaranteed as safe. Results may include unwanted multiple runs of data, improper reboots, lost data due to multiple power cycles and improper charging of the internal capacitor bank.
For a system with a switched power system that removes the negative battery terminal from the equipment chassis ground, carefully follow the illustrated recommendation below.
CAUTION
Failure to follow these suggestions may result in permanent damage to the eXRCPU. Improper powering of the unit requiring repairs by HBM technicians may be deemed as non-warranty usage, resulting in service charges.