Piezoresistive Transmitters Series 25 S for Industrial Applications
For low pressure measurements, high stability has previously only been achieved with large piezoresistive or ceramic capsules and stress-free, floating mountings with O-rings or seals.
However, in modern industrial applications, the increasing demand for reliability and extended lifetimes means that O-rings and seals are less and less acceptable, as they are potential causes of failure.
KELLER have now introduced a totally new production method, using a stainless steel brazing technique to give high stability and high accuracy without internal O-rings. This is the new 25 S production line (also see 23 S-line).