ATEQ PRIMUS F Series User Manual

Sheet #673u – Definition, characteristics and measurement principles
Version 1.04a User guide ATEQ 6th series Page 2/7
3. THE DIFFERENT TESTS
3.1. LEAK TEST
The leak test is most suitable for measuring small leaks (pressure drop). The following formula
is used to convert a leak expressed in units of flow to a drop in pressure:
)(cm V x0,0006
/min)(cmF
(Pa/s)P
3
3
'
F(cm
3
/min) = leak flow
V (cm
3
) = volume of the test part
'P (Pa/s) = pressure drop
Example:
Part which has dP/dt = 50 Pa/s Part which has dP/dt = 1 Pa/s
Test
1 s
2 s
3 s
.
.
n s
Pa/s
50
50
50
.
.
50
Pa
50
100
150
.
.
nx50
Test
1 s
2 s
3 s
.
.
n s
Pa/s
1
1
1
.
.
1
Pa
1
2
3
.
.
n
The choice of working in Pa or in Pa/s depends on the application.
In all events, it must not be forgotten that the range of the sensor in Pa or Pa/s is limited to 50,
500 or 5000 Pa depending on the instrument configuration.
3.1.1. The main types of measurement
There are three measurement methods:
¾ Direct measurement,
¾ Indirect measurement,
¾ Sealed component measurement.
These three principles concern measurements carried out under pressure and under vacuum.
The configuration is determined by the application, and must be determined before ordering the
instrument.

ATEQ PRIMUS F Series Specifications

General

Brand	ATEQ
Model	PRIMUS F Series
Category	Test Equipment
Language	English