Already used successfully in medical and HVAC applications, the newest Sensirion differential pressure sensor models, SDP620, SDP621, SDP630 and SDP631, allow verification of the measured values.
The failsafe sensors can be configured to provide special test patterns for error checking by an external microprocessor. With the right test pattern configurations, it is possible to measure differential pressure and mass flow values to Class C safety level, complying with Directives EN 12067-2:2004 and EN 13611:2007 for gas burners and gas burning appliances.
The mass flow temperature compensated SDP621 and SDP631 target mass flow measurements and the SDP620 and SDP630 sensors output the true differential pressure value. With failsafe certification, it is not necessary to use two redundant sensors to meet high safety requirements so total design cost can be reduced.
For more information about Sensirion SDP600 series differential pressure sensors, click here.
For more information about Sensirion failsafe differential pressure sensors, contact info@sensirion.com.