Siemens LMS14 User Manual page 242

Key
242/617
Building Technologies Division
The linear characteristic is defined by 2 fixed points. The setting is made with the help
of 2 pairs of parameters for the function value and the voltage value (F1/U1 and
F2/U2).
The function value to be set is calculated as follows:
Function value = pressure value [bar]/0.1 bar
Example of pressure measurement at DC 10 V:
Pressure value [bar]
4 bar
2 bar
1 bar
F1 = 0
0
U1 = 0.5 V
Figure 47: Water pressure sensor
F1 Function value 1
F2 Function value 2
U1 Voltage value 1
U2 Voltage value 2
User Manual LMS14...
6 The settings in detail
F2 = 40
F2 = 20
F2 = 10
Voltage at Hx
U2 = 3.5 V
CC1U7471en
07.05.2014