Accession Number : AD0822691
Title : ALARM DELAY SYSTEM FOR IMPULSPHYSIK GMBH VIDEOGRAPH B FOG DETECTOR.
Descriptive Note : Test rept.,
Corporate Author : COAST GUARD BALTIMORE MD FIELD TESTING AND DEVELOPMENT CENTER
Personal Author(s) : Urfer, K. D.
Report Date : 15 NOV 1967
Pagination or Media Count : 37
Abstract : An alarm delay system has been developed for installation in the IMPULSPHYSIK GmbH VIDEOGRAPH B Fog Detector. This system provides certain time control over the reduced visibility alarm signal leaving the detector. It places a minimum on the length of time a period of reduced visibility must exist before an indication of 'fog' is allowed to leave the detector. In addition, it ensures that, once a 'fog' indication has been actuated, it will remain for a certain minimum period. An instruction manual and installation instructions are presented for the new system. (Author)
Descriptors : (*FOG, DETECTORS), METEOROLOGICAL INSTRUMENTS, WARNING SYSTEMS, COAST GUARD, VISIBILITY, FOG SIGNALS, RELIABILITY, INSTALLATION, INSTRUCTION MANUALS, DELAY CIRCUITS, PRINTED CIRCUITS.
Subject Categories : Meteorology
Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE