false alarm


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false alarm

noun deception, fabrication, fake, false alert, false arrest, false danger signal, false notice, false notification, false signal, false warning, fraud, sham
See also: hoax
References in periodicals archive ?
The danger of false alarms is that they degrade the credibility of a warning system - the next time people in Hawaii or Seaside receive an emergency alert they'll wait for some kind of confirmation, potentially wasting precious time.
Across England, in 2016/17, fire alarms were falsely sounded on 19,777 occasions 16,847 times in 2015/16, and is the highest number of false alarms recorded since 20,649 in 2011/12.
The most important thing you can do to prevent false alarms is regularly test and maintain your systems," says Ebersold.
Despite the huge number of fire detection options currently available, devising a system for the pharmaceutical sector that will give the necessary speed of response without creating maintenance problems or generating an unacceptable level of false alarms is far from easy.
One building where there has been repeated false alarms is the Southern General Hospital.
The service responded to a staggering 3,146 false alarms, between April 2008 and March 2009.
But Colonel Petrov didn't know for certain this was a false alarm.
Special attention is given to the ten customers with the highest monthly false alarm rate and the ten with the highest cumulative rate.
A fire service spokesman said: 'The alarms were activated but by the time we got to gate of the plant we were told by the on-site firefighters that it was a false alarm.
The result is a fire detector system that quickly and reliably recognizes the onset of a fire, while easily screening out false alarms.
Some states charge $100 after the fourth false alarm and other states fine the homeowner in incremental stages with each occurrence.
The engine was on its way to a false alarm at Banfield Avenue, Rough Hay, in Darlaston.