Conversions; Battery Voltage; Board Temperature; Thermistor - Geokon 8800-2-1A Instruction Manual

D.8 Conversions
The following equations can be used to obtain real numbers for the various sensors.
D.8.1 Battery Voltage
v=5* � �
Raw
16383
Raw = value from table
v = volts
D.8.2 Board Temperature
mV=2.5* �
Raw
16383
- � (T
2
T -4T
b
b
T=
2T
Raw = value from table
mV = millivolts
T = -0.00262
a
T = 8.194 mV/C°
b
T = 1324 mV
c
T = Temperature (C°)
D.8.3 Thermistor
3,000Ω*16383
R =
TH
Raw
T=
A+B ln R
TH
Raw = value from table
R = thermistor resistance Ω
TH
A = 1.4051e-3
B = 2.369e-4
C = 1.019e-7
T = Temperature (C°)
� * 1000
(T -mV))
a c
a
mV
2
C°
-6,000Ω
1
-273.15°C
3
+C (ln R )
TH
33