HYDAC CS 1000 - Manual (Page 75)

ContaminationSensor CS1000 Analog Output (ANAOUT)
HYDAC Filtertechnik GmbH en Page 75 / 100
BeWa CS1000 3247149n en 2009-02-04.doc 2009-02-04
HDA Signal 1/2/3/4
The current or voltage range is dependent on the contamination class according to
NAS=0.0 – 14.0 (resolution 0.1 class).
Current I NAS class / error Voltage U
I < 4.00 mA Cable break U< 2.00 V
I = 4.00 mA NAS 0 U = 2.00 V
I = 4.11 mA NAS 0.1 U = 2.06 V
I = 4.23 mA NAS 0.2 U = 2.11 V
... ... ...
I = 5.14 mA NAS 1 U = 2.57 V
I = 6.29 mA NAS 2 U = 3.14 V
I = 7.43 mA NAS 3 U = 3.71 V
I = 8.57 mA NAS 4 U = 4.29 V
I = 9.71 mA NAS 5 U = 4.86 V
I = 10.86 mA NAS 6 U = 5.43 V
I = 12.00 mA NAS 7 U = 6.00 V
I = 13.14 mA NAS 8 U = 6.57 V
I = 14.29 mA NAS 9 U = 7.14 V
I = 15.43 mA NAS 10 U = 7.71 V
I = 16.57 mA NAS 11 U = 8.29 V
I = 17.71 mA NAS 12 U = 8.86 V
I = 18.86 mA NAS 13 U = 9.43 V
... ... ...
I = 19.77 mA NAS 13.8 U = 9.89 V
I = 19.89 mA NAS 13.9 U = 9.94 V
I = 20.00 mA NAS 14.0 U = 10.00 V
The current (I) or voltage (U) can be calculated for a given NAS class as follows:
I = 4 mA + NAS class x (20 mA - 4 mA) / 14
U = 2 V + NAS class x (10 V - 2 V) / 14
The current I or voltage U can be calculated for a given NAS contamination class
as follows:
NAS class = (I - 4 mA) x (14/16 mA)
NAS class = (U – 2 V) x (14/8 V)