Hawkeye 2 NCV Statistics Tests
To get to the diagnostic tests for the nozzle control system, tap the Diagnostics button. Then tap the Tests tab.
Select a test from the list, and then tap the Begin button when ready.
The NCV Statistics tests are very useful for seasonal checks and services. These tests will let you look at key information for all nozzle control valves on the system. Two notable tests are Logic Temperature and High Current Voltage Minimum.
The Logic Temperature test can help you identify a potentially bad NCV. A difference of five degrees Fahrenheit from the average temperature is not a cause for alarm. A difference of twenty-five degrees from the average can point to an NCV issue.
The High Current Voltage Minimum test can help you identify problems related to power issues and low voltage warnings.
In the data visualization, you should see a bell curve for the NCVs going from the left tip to the right tip. The voltage for the outer NCVs will be lower than those in the center.
You can add load to the system by putting it in manual mode and setting the NCV duty cycle. This will help you create more power draw which will make any differences in high current power appear more pronounced in the curve.
Now you should be able to see the separate cable sections. If an entire section is low, it could indicate a bad fuse or relay for that section of the boom cable. If a single NCV is lower than its neighbors, that indicates a bad connection at the specific location. Low voltage across all sections could indicate a bad battery connection.