Instructions

6.4 Interpreting digital temperature values
Following the pressure data, temperature data is transmitted as a 3rd and 4th byte. The
complete 15-bit temperature value can be obtained by concatenating the two bytes of tem-
perature data, where the 3rd byte being most significant byte (MSB) and the 4th byte being
least significant byte (LSB) of the temperature value. Corresponding temperature in SI unit
(°C) can be obtained from the digital temperature values with the help of sensitivity parame-
ter SEN
T
(see table 11 ).
Step 1: Get two bytes of temperature data
1. T
H
2. T
L
Step 2: Concatenate the two bytes to obtain complete 15-bit temperature value
T
15bit
= T
H
& T
L
Step 3: Obtain temperature value in SI unit [°C] with following formula
Temperature [°C] = (T
15bit
- OUT
T_MIN
) ×SEN
T
Where,
T
15bit
= Digital temperature value obtained in step 2.
OUT
T_MIN
= Digital output at minimum temperature = 8192 [digit] (See table: 18 )
SEN
T
= 4.272 ×10
-3
[°C/digit] (See table: 11 )
Example:
Temperature data obtained from sensor are:
T
H
= 0x36
T
L
= 0xC5
Concatenating these 2 bytes (0x36C5)to obtain 15-bit decimal value
T
15bit
[digit] = 14021
T[°C] = (14021-8192)[digit] ×4.272 ×10
-3
[digit/°C] = 24.90 °C
Differential Pressure Sensor, Part Nr. 25131308xxx01
User manual version 1.0 © August 2019
www.we-online.com/sensors 26