Hydac CSI-B-1, Operating Instruction

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CSI-B-1 HYDACLab - Reading out measured values
HYDAC FILTER SYSTEMS GMBH en(us) Page 28 / 36
BeWa CSI-B-1 3424452b 2012-04-20 en-us.doc 2012-04-20
HYDACLab - Reading out measured values
If a HYDACLab is detected at the sensor input, then the CSI-B-1 outputs the
following analog signals:
Output Value
OUT1 Temperature T ( − 25°C … +100°C)
Voltage U = Voltage
U = 2 + 8 x (T + 25°C) / 125°C
Current I = Current
I = 4 + 16 x (T + 25°C) / 125°C
Temperature = ((voltage U − 2) × 125 / 8) − 25
Temperature = ((current I − 4) × 125 / 16) − 25
OUT2 Rel. change in the dielectric constant rDK ( − 30 % … +30 %)
Voltage U = Voltage
U = 2 + 8 x (rDK + 30%) / 60%
Current I = Current
I = 4 + 16 x (rDK + 30%) / 60%
rDK = rDK =
((voltage U − 2) × 60 / 8) − 30
rDK = rDK = ((current I − 4) × 60 / 16) − 30
OUT3 Saturation level S (0 ... 100 %)
Voltage U = Voltage
U = 2 + 8 x S / 100
Current I = Current
I = 4 + 16 x S / 100
S = (voltage U − 2) × 100 / 8
S = (current I − 4) × 100 / 16