The phrase "are recorded when a" is correct and usable in written English.
It can be used in contexts where you are discussing the documentation or logging of events or actions that occur under certain conditions.
Example: "The results of the experiment are recorded when a specific temperature is reached."
Alternatives: "are documented when a" or "are noted when a".
The company reported $97 million in realized investment losses in the quarter, which are recorded when a a particular investment is sold, and are treated as a one-time item.
Monthly figures on home resales are compiled from contract closings and may reflect sales agreed upon weeks or months earlier, while new-home purchases are recorded when a contract is signed, making them a more timely barometer.
While the returned PIs are poor when single-objective swarm optimization is employed, substantial improvements are recorded when a multi-objective framework is considered for ANN development.
Only a small number of points are recorded when an event is detected.
A stable frequency was recorded when a 5% glycerol solution (1.055 cP) was static in the measurement chamber.
Minimum error was recorded when a 75-cm diameter casing was used and the longitudinal axis of the sample was aligned to that of the casing.
A "success" was recorded when a tag co-occurred in a RIL with the SNP allele from its presumed parental source, otherwise a "failure" was recorded.
The mechanical hyperalgesic threshold was recorded when a rat withdrew its paw.
In the population register, it is recorded when a registered person has died.
Filled due to decay (FT) was recorded when a tooth contained one or more permanent restorations placed to treat caries, while missing was recorded when a tooth had been extracted due to pathology (MT).
Filled due to decay was recorded when a tooth contained one or more permanent restorations placed to treat caries, while missing was recorded when a tooth had been extracted due to pathology.
