Scaling analog input

AARRGGHH   I get sooo frustrated.

Everything is working just like you described :-)

but now i have run in to a new problem.

Scaling analog input.

i looked in the forum on other posts and only found one with the "same issue"

in that post they showed a picture of the problem but i didnt see the solution or explanation.

i have a specific range on my sensor.

like 0 to +100 or -30 to + 70

-30 to +70 works in the min max and gain and offset, but try to use 0 - 100 it goes red all over and want me to use 1 to 105 or 104  i cant remember now.

ok so 0 to 1000 works  i just need to divede it by 10 i think.

in with a math instruction   but no :-)

is there any good videos / documents that actualy explain how to do this ?because the help dont give any hints :-(

should i use 2 amplifiers in series ?

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Split from Wind direction.

Thanks :-)

so i was kind of on the right traqck when i asked if i could use 2 amps in series :-)

i will give it a try.

for testing i am at the moment using 2 of theese

https://www.dhgate.com/product/4-20ma-current-generator-circuit-0-20ma-calibrator/414814746.html

but also a galltec kpc3/9-k21

https://www.galltec-mela.de/datenblatt/analoge-stabsensoren/pc-rc/c23.pdf

as i read it the humidity sensor is 4-20 ma and a range of 0-100

the temp is 4-20 ma and a range of -30 to +70

yes  to divide the first value by 10 ;-)

figured that much

it is working on the Logo  i just need to adapt the ranges on the HMI now and test it out :-)

i think a mathmatical is better 

somehow i cant get it to be 0 - 100  only 20-100 when using the amp and a gain of 0.1

so it is showing the wrong value

so it should be like this ! ??

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