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Memory element
■   100
% pneumatic
■   Bistable
pneumatic
Also available in ATEX version for use in poten-
tially explosive atmospheres in accordance with
94/9/EC Directive
Version
Symbol
Characteristics
81 523 201
With pressure
indicator
81 523 601
With pressure indi-
cator and manual
override
Colour
Operating pressure
Orifice diameter
Minimum memory pilot pressure
Operating temperature
Flow at 6 bars
Connection - On sub-base page 4/14-4/15
Weight
bar
mm
bar
°C
Nl/min
g
Black
2 ? 8
2.7
2.5
-5 ?  +50
200
l
90
Black
2 ? 8
2.7
2.5
-5 ?  +50
200
l
90
Principle of operation
The function is that of a 4/2 valves. The appearence of signal "X1" causes
the displacement of the slide valve. The output port "x" is then put under
pressure. This state is remembered until the arrival of signal "X0". This
signal reverses the slide valve, the output "x" is put under pressure. This
state is likewise remembered. The output:
- "x" under pressure indicates that the information in the MEMORY is "X1",
- "x" under pressure indicates that the information in the MEMORY is "X0".
4
Dimensions
Dimensions of logic and memory elements
81 523 201 - 81 523 601
2 holes ? 3.2 depth minimum
2.5 (location)
Viewed from above
ATEX version products are available in the following catologues: Pneumatic products for explosive atmospheres or on our website
www.crouzet.com
48
www.crouzet.com
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