EDS 3000 11
Status: 2021-10-08 HYDAC ELECTRONIC GMBH Part no.: 669851
11.1.2 Setting to window mode (WIN)
The window function enables a range to be monitored. An upper and a lower switch
point which defines the range can be assigned to each switching output.
The relevant output will then switch when the pressure enters this range. When the level
leaves this range, i.e. when the switch-back point has been exceeded or fallen below,
the output switches back.
The lower switch-back value ranges just below the lower switching value (lower
switching value minus 3 times the increment, see chapter 11.3 Setting ranges for the
switching outputs). The upper switch-back value ranges just above the upper switching
value (upper switching value plus 3 times the increment, see chapter 11.3 Setting
ranges for the switching outputs). The range between the switching value and the
switch-back value forms a safety margin which prevents unwanted switching operations
from being triggered (such as those triggered by the pulsations of a pump).
Example for switching output 1 (normally open):
Abbreviations:
"HI 1", "HI 2" = High level 1 or 2 = upper switch point 1 or 2
"Lo 1", "Lo 2" = Low level 1 or 2 = lower switching value 1 or 2
"FS" (Full Scale) = relative to the full measuring range
Notes:
• The window function only works properly (switching on and off) if all switch
values (including the safety margin) are above 0 bar and below the nominal
pressure range.
• It is only possible to set the upper switch point (Hi) if it is higher than the
related lower switch-back point (Lo).
• The window function only works properly (switching on and off) if all switch
values (including the safety margin) are greater than 0 bar + offset value and
below the upper measuring range limit + offset value.
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