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
      Information Science
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE