Sensing element／Differential

2

Pressure(kPa) =Port1 pressure - Port2 pressure

P1= 0 kPa

T1= 0 deg.C

P2= 1/2 x P3 (kPa)

T2= 25 deg.C

P3= reted pressure (kPa)

T3= 50 deg.C

Offset voltage (mV)

Voff = V(P1,T)

Voff(0) = V(P1,T1)

Voff(25) = V(P1,T2)

Voff(50) = V(P1,T3)

Output voltage at full scale (mV)

Vfs = V(P3,T)

Vfs(0) = V(P3,T1)

Vfs(25) = V(P3,T2)

Vfs(50) = V(P3,T3)

Output span voltage (mV)

SV = Vfs - Voff

SV(0) = Vfs(0) - Voff(0)

SV(25) = Vfs(25) - Voff(25)

SV(50) = Vfs(50) - Voff(50)

Temperature sensitivity of offset voltage (%FS)

TSO = {LARGER ONE} / SV(25) x 100

LARGER ONE = larger absolute value which of {Voff(0) - Voff(25)} and {Voff(50) - Voff(25)}

Temperature coefficient of output span voltage (%FS)

TCS = {max[SV(0),SV(25),SV(50)] - min[SV(0),SV(25),SV(50)] } / SV(25) x 100

Linearity (%FS)

NL = {V(P2,T2) - [Voff(25)+Vfs(25)]/2 } / SV(25) x 100

Pressure hysteresis (%FS)

Phys = {Voff’(25) - Voff(25) } / SV(25) x 100

Voff’(25) : Output voltage against P1 after stressing by P3 pressure.