The phrase "a manual operation" is correct and usable in written English.
It can be used to describe a task or process that is performed by hand rather than by a machine or automated system.
Example: "The technician performed a manual operation to fix the equipment, ensuring that everything was done carefully."
Alternatives: "a hand-operated task" or "a non-automated process".
"There is no way of doing it in a manual operation," he said of an off-peak discount.
Currently, the conversion from laser scan data to BIM is primarily a manual operation, and it is labor-intensive and can be error-prone.
Results show robust benefits in the three tested control strategies, achieving average savings in comparison to a manual operation of the system of 4.3%, 7.8%, and 16.7%.
Similarly, J.P.A. designed the seat so that its transformation into a bed is mainly a manual operation, rather than, as is common, something a passenger can do by pushing buttons.
When he joined Submit in March 2000 just as the Internet bubble began to burst he took over a manual operation hastily forged to catch the Web.
You can program the date into Moshi, so that it can recite it back to you when asked; but this is strictly a manual operation using old fashioned buttons.
A manual-operation shaft was originally present so that it could be operated from the surface of the roadway, but it was later paved over.
"We have done that". The new meters are the most visible component of Glendale Water & Power's smart-grid project, a $70-million 70-milliong that will transform the undertakingm a largely manual operathat to a digital one, said General Manager Glenn Steiger.
The toy tractor is assembled by a manual procedure, such that all operations are performed on a work-table as it is shown in Fig. 6.
Removing the roof in previous Targa iterations was a wholly manual operation.
Typesetting was an entirely manual operation until the adoption of a typewriter-like keyboard in the 19th century.
