G - Physics
01
D
234/25
G01D 9/00 (2006.01) G01D 9/28 (2006.01) G01D 9/30 (2006.01) G01D 15/10 (2006.01)
Patent
CA 2038999
A chart recorder is disclosed which has n (n = 1, 2, 3, ...) measuring channels, one for each of n measurement signals to be recorded, a printing device (5) which pro- duces n isochromatic dot sequences (8) as curves each associated with one of the n measurement signals on a recording medium (4) moving past it, and 1 to n writing devices (9) for 1 to n different colors which overwrite or underwrite one or more of the dot sequences (8), at least in sections, with a continuous line (10) of another one of the n colors which follows the measurement sig- nal of the respective channel, or a color-printing de- vice (15) for 1 to n different colors which marks selec- ted dots of each curve with dots (18) of another one of the n colors. Thus, the n dot sequences (8) are clearly distinguishable one from the other, particularly at curve intersections, and additional functions, such as alarm markings, can be realized.
Kalteis Helmut
Schmidt Dieter
Endress + Hauser Wetzer Gmbh + Co. Kg
Fetherstonhaugh & Co.
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