Keller PR-23SY Pressure Transmitter, 500 PSI

The Keller PR-23SY (part no. 81531.77) is a Series 23SY piezoresistive relative pressure transmitter built for increased-demand applications such as machinery and plant manufacturing, agriculture, mobile hydraulics and the railway industry, with a measuring range equivalent to roughly 500 PSI (about 34 bar).

It uses a fully welded, insulated and encapsulated piezoresistive sensor chip with no internal seals, is temperature compensated across -10 to 80 degrees C, delivers an accuracy better than 0.25% FS with a total error band of 0.7% FS over the compensated range, and is also available in intrinsically safe (23SY-Ei, zone 0/1/2) or increased safety (23SY-En, zone 2) variants.