need partload indication in 4-20mA

[2400martin]

More users install compressors controllers and plc on there compressorpackage. There are modificationkits to modify the mechnical partload indication to a single 4-20mA. contactless Linear position syste.
Complete modification sets for older Howden Compressors- stall compressors. No more defect pot.meters. stabel and easy mounting.

[Grizzly]

And the question you would like to ask is?
Sorry but your post is confusing.
Grizzly

[Brian_UK]

That's because he is trying to squeeze in an advert. :(