ichidan verb, intransitive verb
swing past the maximum; go off the scale
Describes a needle or indicator on a dial, meter, or gauge swinging beyond its maximum reading. Often used in technical or mechanical contexts.
タコメーターの針が振り切れた。
The tachometer needle swung past the maximum.
電圧が高すぎてメーターが振り切れてしまった。
The voltage was too high and the meter went off the scale.