Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1989-05-31
1991-06-25
Raevis, Robert
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
73 232, G01N 2700
Patent
active
050256530
ABSTRACT:
In a gas detection system for detecting the content of inflammable, explosive and/or toxic or other gases an arrangement is proposed according to which a central electronic evaluation system is connected to a plurality of measuring heads, which are installed at the points of measurement, by a single common two-wire line and each measuring head is provided, at its place of installation, with its own intelligence (microprocessor) for processing at least partly the values supplied by the sensor, each measuring head being equipped with at least two sensors of different types or measuring ranges and with an additional temperature sensor and each sensor having an identification which is indicative of the type and measuring range of the sensor and which is picked up by the measuring head. The electronic evaluation system and the measuring heads communicate with each other by bidirectional digital communication, after the measuring heads have been addressed, and the measuring head is supplied with current via the two-wire line.
REFERENCES:
patent: 4390869 (1983-06-01), Christen et al.
patent: 4404399 (1985-01-01), Youngman
patent: 4464653 (1985-08-01), Winner
patent: 4526028 (1985-07-01), Hubner
patent: 4555930 (1985-12-01), Leach et al.
patent: 4704607 (1987-11-01), Teather et al.
patent: 4854153 (1989-08-01), Miyagawa et al.
Conducta Gesellschaft fur MeB- und Regeltechnik
Raevis Robert
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