Specifications

ContaminationSensor CS 1000 Reading the analog output
HYDAC FILTER SYSTEMS GMBH
en(us)
Page 82/112
BeWa CS1000 3764916 300 en-us 2012-08-29.doc 2012-08-29
HDA.NAS 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 contamination
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)