Specifications

ContaminationSensor CS 1000 Reading the analog output
HYDAC FILTER SYSTEMS GMBH
en(us)
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BeWa CS1000 3764916 300 en-us 2012-08-29.doc 2012-08-29
Current I = NAS Class / Error Voltage U =
I = 18,99 mA NAS 13,8 U = 9,50 V
I = 19,10 mA NAS 13,9 U = 9,55 V
I = 19,20 mA NAS 14,0 U = 9,60 V
19,2 mA < I < 19,8
mA
Not defined 9,60 V < U < 9,90 V
19,8 mA < I < 20 mA No measured value 9,90 V < U < 10 V
The current (I) or voltage (U) can be calculated for a given NAS contamination
class as follows:
I = 4.8 mA + NAS class x (19.2 mA - 4.8 mA) / 14
U = 2.4 V + NAS class x (9.6 V - 2.4 V) / 14
The current I or voltage U can be calculated for a given NAS contamination class
as follows:
NAS class = (I - 4.8 mA) x (14/14.4 mA)
NAS class = (U – 2.4 V) x (14/7.2 V)
NAS maximum
The NAsMAX value designates the largest of the 4 NAS classes.
NAS class 2 µm 5 µm 15 µm 25 µm
Particle size 2-5 µm 5-15 µm 15 µm > 25 µm
The signal is updated after the measuring period has elapsed (the measuring period
is set in the PowerUp menu, factory setting = 60 s).
The
NAsMAX signal is output depending on the maximum NAS class.
Example:
NAS classes NASMAX (NAS Maximum)
NAS 6.1 / 5.7 / 6.0 / 5.5
For basic information about cleanliness classes, see Chapter 0.
The NAS classification consists of whole numbers. Better change / trend recognition
is based on a resolution of 0.1 contamination classes.
To convert a decimal value to an integer, the decimal value has to be rounded up.
For example: a readout of NAS 10.7 is, according to NAS, a class NAS 11.