siemens uc ?

[gazoo]

on the older system 600 uc what would be the slope/intercept for a 1000 ohm RTD(40-120)degree sensor? part number 544-300

[Merkas]

Check out Appendix B. Slopes and Intercepts of this manual

[gazoo]

cant i use the slope/intercept tool in point editor???

[Merkas]

There is no option for UC in point editor. Your 1000 ohm RTD would have a slope of 0.1 and intercept of -40.0, not taking into account wire size or lenght.

[gazoo]

I also have a UI that I would like to connect a 4-20 ma pressure transducer. How would I set up for this. Book does not have my range. 0 to 100 psi

[Merkas]

From the Book table B-3;
Range Slope Intercept
0 - 100 0.038435 -25.0

[gazoo]

I have another sensor that is 0 -65 psi. How would I figure the s/I for this??

[Merkas]

Formulas for a 4-20mA input on a UC
Slope = (V2 - V1) / 2602
Intercept = V1 - (Slope x 650)

Sensor 0-65
V1 = 0
V2 = 65

Slope = (65 - 0) / 2602
Slope = 0.024981

Intercept = V1 - (Slope x 650)
Intercept = V1 - (0.024981 x 650)
Intercept = -16.23765

[gazoo]

Thanks for all the info....