Smoke detector with individual sensitivity calibration and monit

Details Smoke detector with individual sensitivity calibration and monit Smoke detector with individual sensitivity calibration and monit

1993-07-12

1996-08-06

Groody, James J.

Communications: electrical

Condition responsive indicating system

With particular system function

340630, G08B 2900, G08B 1710

Patent

active

055437770

ABSTRACT:
A process and apparatus are provided for calibrating an individual smoke detector prior to installation so its sensitivity can be determined easily throughout its useful life. Representations of detector output signals are stored in the detector prior to installation, preferably at the time of manufacture, and used later for determining the sensitivity of the detector. The signals may represent alarm and clean-ambient conditions, or one of such conditions and the difference between them. During monitoring of the detector, after its installation, a new reading of a corresponding signal under clean-ambient conditions is sampled and the differences before and after installation are compared to determine the sensitivity of the detector when it is monitored. The detector includes electrical contacts from which a representation of detector sensitivity is available for monitoring with an external electrical probe, such as a common voltmeter.

REFERENCES:
patent: 4302753 (1981-11-01), Conforti
patent: 4317113 (1982-02-01), Honma
patent: 4559453 (1985-12-01), Muggli et al.
patent: 4595914 (1986-06-01), Siegel
patent: 4977527 (1990-12-01), Shaw et al.
patent: 5212470 (1993-05-01), Thuillard et al.
patent: 5281810 (1994-01-01), Fooks et al.

Affiliated with

Also associated with

Rating

Smoke detector with individual sensitivity calibration and monit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Smoke detector with individual sensitivity calibration and monit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Smoke detector with individual sensitivity calibration and monit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2193818