Datasheet

MS5837-30BA
Ultra-small, gel-filled pressure sensor with stainless steel cap
TE CONNECTIVITY SENSORS /// MS5837-30BA REV C2 12/2019
Page 12
SECOND ORDER TEMPERATURE COMPENSATION
Yes
No
SENSi = 5  (TEMP – 2000)
2
/ 2
3
SENS2 = SENS - SENSi
(TEMP/ 100)< 20°C
Low temperature
OFFi = 1  (TEMP – 2000)
2
/ 2
4
OFFi = 3  (TEMP – 2000)
2
/ 2
1
OFF2 = OFF - OFFi
TEMP2 = (TEMP – Ti) / 100 [°C]
Low temperature
High temperature
Calculate pressure and temperature 2
nd
order
(TEMP/ 100) < -15°C
No
Yes
OFFi = OFFi + 7  (TEMP + 1500)
2
Very low temperature
SENSi = 0
Ti = 3  dT
2
/ 2
33
Ti = 2  dT
2
/ 2
37
SENSi = SENSi + 4  (TEMP + 1500)
2
Pressure and Temperature parameters values first order:
OFF, SENS and TEMP
P2 = ((( D1  SENS2 ) / 2
21
– OFF2) / 2
13
) / 10 [mbar]
Figure 10: Flow chart for pressure and temperature to the optimum accuracy.