AMETEK KM Series Silicon-on-Sapphire (SOS) High-Accuracy Pressure Transducers offer high-accuracy over a wide temperature range. This is achieved through digital correction of the output signal within the unit's electronics. Each unit is individually calibrated for optimal performance.

Utilizing Silicon-on-Sapphrie sensing technology results in excellent long-term stability of <0.2% of Full Scale, SOS technology also gives the DM silicon sensors. The silicon Wheatstone bridge formed during the manufacturing of the DM Series transducers is free from any residual stresses that may add to hysteresis and non-repeatability errors, which decreases long-term stability. There are no bonding agents between the sensing element and sapphire substrate that may age and cause instability.

Some key performance characteristics of the KM Series are:

• The KM Series pressure transducer feature an on-board microprocessor that automatically compensates for non-linearity and thermal sensor errors.
• It also provides an ouput with a very high-accuracy of better that <+/-0.5% over the complete operating temperature range from -40°C to 121°C (-40°F to +250°F).

• KM Series Siliconn-on Sapphire High-Accuracy Pressure Transducer ( 170k)