Can the sensor 26PCFFA2G measure nagetive water pressure?
Hello jdengbg,
Welcome to the DigiKey TechForum.
The operating pressure is ±100PSI (±689.48kPa), so the sensing range should be from -100PSI~+100PSI.
Hello @jdengbg,
Welcome to the DigiKey TechForum,
The 26PCFFA2G is a single port sensor with an internal Wheatstone bridge with four piezoresistors.
The datasheet presents the sensor as a straight 0 to 100 PSI measurement device.
I suspect it will respond to vacuum but cannot comment on survivability or linearity. See image of construction below.
As an alternative, consider the two port 26PCFFA6D. As I understand, the pressure specification, the +/- is targeted at the differential sensor. (Physical of -14.7 PSI and all).
Sincerely,
Aaron
