ATEQ F580 - Page 119

Chapter 4 – Functions of the instrument
UM-18400E-U ATEQ F580 User manual Page 109/168
s) Sealed components
Sealed component mode is used to measure leaks on airtight parts. They are placed
under a bell which is then pressurised.
• Principle
EXTERNAL
VOLUME connected
to the pressurisation
output on the valve
FILL VALVE
R
EGULATOR
DUMP VALVE
TRANSDUCER
BELLJAR
(V2)
PART
REFERENCE
PART
CONNECTOR
ELECTRONIC
PRESSURE
REGULATOR
• Volume fill
The internal pneumatic circuit (if required, an external
volume can be added) of the
ATEQ F510 or F520 (V1)
is filled to a pressure P1.
FILL VALVE
REGULATOR
DUMP VALVE
TRANSDUCER
ELECTRONIC
REGULATOR
P1
EXTERNAL
VOLUME connected
to the pressurisation
output of the valve
V1 DIAGRAM
• Part transfer
The previously-filled internal volume is opened to the
bell jar volume (V2). We thus obtain P2 and V2.
FILL VALVE
DUMP VALVE
TRANSDUCER
BELLJAR
(V2)
PART
REFERENCE
PART
CONNECTOR
ELECTRONIC
REGULATOR
EXTERNAL
VOLUME connected
to the pressurisation
output of the valve
V2 DIAGRAM