Response Electronics CL6011B Especificaciones Pagina 122

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4Ć40 FST Configuration
Original Ć June 1990CE4.2:CL6211
AINTC AINTC
7
INSTRUCTION NAME: AINTCE, AINTCJ, AINTCK, AINTCT
(analog input thermocouple type E, J, K and T)
DESCRIPTION: These instructions perform linearization of high level (4 to 20 milliamps, 1 to 5
volts dc) thermocouple input signals based on the thermocouple conversion factors included in
the functions. The maximum ranges for each thermocouple type are as follows:
Type E: 0 to 1600
0
F
Type J: 0 to 1400
0
F
Type K: 0 to 2400
0
F
Type T: -300 to 700
0
F
Operand 1 specifies the channel number of the analog input to be converted. The SVD output is 0 if
the analog input value is between -2 and 102 percent of span. If the analog input value is outside
this range, the SVD output is 1.
GRAPHIC REPRESENTATION: SYMBOLIC REPRESENTATION:
20 mA
4 mA
t
0
t
1
INPUT
t
0
t
1
OUTPUT
T T
460 F
420
380
340
300
THIS EXAMPLE SHOWS THE TYPE J THERMOCOUPLE.
THE THERMOCOUPLE CONVERSION IS DONE BY
COMPARING INPUT TO TABLE VALUES AND DOING
A LINEAR INTERPOLATION BETWEEN POINTS.
4 mA to 20 mA is equal to 300 to 460 Degrees F
CONFIGURATION FORMAT: AINTC* (
AIN channel >>
Eng conversion factors >>
Temperature units >>
Comment >>
* - either E, J, K or T
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