What is the purpose of a hard reset on ASOS?

A hard reset on an ASOS (Automated System for Operations management and Services) is primarily performed to reset the sensors and reapply power. This process is essential because it effectively restores the system to a known good state by reinitializing the sensors that may have become unresponsive or misaligned due to various operational issues. During a hard reset, power is cut off and then reapplied, allowing the system to recalibrate and begin operation afresh.

This action is distinct from merely clearing memory, updating software, or performing diagnostic checks. Cleansing memory typically involves deleting data from the device without affecting its operational status, while software updates introduce new features or fix issues but do not specifically address sensor reset needs. Conducting a diagnostic check usually refers to testing the system for faults without necessarily interacting with the operational sensors in the same way a hard reset does. Thus, a hard reset is a targeted procedure that focuses on restoring the system's immediate operational capabilities.