HP03M Datasheet, PDF (4/7 Pages) List of Unclassifed Manufacturers – HP03M

Hope RF
2010-2-3
HP03 Series of calibrated sensor module
HP03M
Version: 1.3
Pressure and Temperature Calculation:
Step 1: (get temperature value)
D2>=C5 dUT= D2-C5 - ((D2-C5)/2^7) * ((D2-C5)/2^7) * A / 2^C
D2 < C5 dUT= D2-C5 - ((D2-C5)/2^7) * ((D2-C5)/2^7) * B / 2^C
Step 2: (calculate offset, sensitivity and final pressure value)
OFF=(C2+(C4-1024)*dUT/2^14)*4
SENS = C1+ C3*dUT/2^10
X= SENS * (D1-7168)/2^14 - OFF
P=X*10/2^5+C7
• For altitude measurement system, recommend to use P=X*100/2^5+C7*10
• So that better altitude resolution can be achieved
Step 3: (calculate temperature)
T = 250 + dUT * C6 / 2 ^ 16-dUT/2^D
Example:
C1=29908
C2=3724
C3=312
C4=441
C5=9191
C6=3990
C7=2500
A=1
B=4
C=4
D=9
D1=30036
D2=4107
dUT = (4107-9191) - ((4107-9191)*(4107-9191)/128^2) * 4 / 2^4 = -5478
OFF = (3724 + (441-1024) * (-5478) / 2^14) * 4 =15675
SENS= 29908 + 312 * (-5478) / 2^10 = 28238
X= 28238 * (30036-7168) / 2^14 – 15675 = 23738
P= 23738 * 10 /2^5 + 2500 = 9918 = 991.8hPa
T= 250 + (-5478) * 3990 /2^16- (-5478/2^9) =-72 = -7.2°C
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