Analog output
HYDAC Filtersysteme GmbH
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Page 49
BeWa CS1000 3247149l en.doc
2006-07-24
The SAE class can be calculated for a given current I or voltage U as follows:
SAE class = (I - 4.8 mA)*(14/14.4 mA)
SAE class = (U - 2.4 V)*(14/7.2 V)
11.1.2 SAE A-D (
SAeMAX
)
The
SAeMAX
value is the highest class in any of one of the four SAE A-D classes (respectively >4
µm(c),>6 µm(c),>14 µm(c),>21 µm(c)).
The signal is updated after the measuring time has elapsed (the measuring time is set in the Power
Up menu / default: 60 s).
The
SAeMAX
signal is a mA signal corresponding to this maximum SAE class.
Example:
SAE classes
SAeMAX
(SAE A-D)
SAE 6.1A / 5.7B / 6.0C / 5.5D
6.1
For basic information about cleanliness classes, see section 17.
The SAE classification contains integer values only. Better trend recognition is based on a resolution
of 0.1 contamination classes as supplied by the CS1000.
To convert a decimal value to an integer, the decimal value has to be rounded up. For example, a
readout of SAE 10.7 corresponds to SAE 11.
11.1.3 SAE Class A / B / C / D (SAE)
The SAE class A/B/C/D measured value consists of 4 measured values coded with the following time
slices (also shown in the following diagram):
Содержание CS1000 Series
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