Communications: electrical – Continuously variable indicating – With meter reading
Patent
1985-10-22
1987-11-03
Caldwell, Sr., John W.
Communications: electrical
Continuously variable indicating
With meter reading
34082569, 34082572, 340632, 73 1G, G05B 2302, G08C 1900
Patent
active
047046074
ABSTRACT:
Gas sensors 1 are mounted on respective explosion proof housings 2 that contain microprocessor circuitry 11 for operating signals from the sensors. Signals from the circuitry 11 are transmitted along a digital highway 4 to a central control unit. The sensors may be located at remote locations in an industrial process plant or for example along the roof of a tunnel. A non-contact hand held unit 12 is provided for individually setting operating parameters of the circuitry 11, to enable factors such as zero set, span and linearity to be set for the sensors individually. A two way wireless communication link is provided between the unit 12 and a transducer 15 on the housing 1, so that the current value of the circuit operating parameters can be displayed on a display 18 on the hand held unit.
REFERENCES:
patent: 3559177 (1971-01-01), Benson
patent: 4173754 (1979-11-01), Feiker
patent: 4192551 (1980-03-01), Weimer et al.
patent: 4386436 (1983-05-01), Kocher et al.
patent: 4418333 (1983-11-01), Schwartzbach et al.
patent: 4476706 (1984-10-01), Hadden et al.
patent: 4494399 (1985-01-01), Youngman
Scott Michael
Teather Roy
Caldwell Sr. John W.
Sieger Limited
Smith Ralph E.
LandOfFree
System for remotely adjusting a parameter of an electrical circu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for remotely adjusting a parameter of an electrical circu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for remotely adjusting a parameter of an electrical circu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1676104