Sheet #613u – Sealed components
Version 1.04a  User guide ATEQ 6th series Page 2/8 
Test modes
The ATEQ dedicated for sealed components can carry out the following tests: 
1. large leak test only, 
2. large leak test followed by a finer leak test at a smaller pressure. 
These two modes can be programmed from the instrument's front panel and are called: 
xLarge leak mode : Large leak test only, 
xStandard mode :  Large leak test, then small leak test. 
Standard mode carries out a first cycle to identify large leaks and then adds a second cycle at 
nominal pressure to check for small leaks.   
 Fill  Trans  Dum
LARGE LEAK MODE 
Fill  Trans Fill Stab  Test   Dum
STANDARD MODE 
Carrying out the cycles and settings
For the instrument to detect large leaks, two learning cycles must be carried out: one on a pass 
part and one on a fail part. 
Learning cycles: 
"PASS part" learning cycle: this cycle is 
compulsory before testing. 
This P1 and P2 learning cycle 
automatically calculates and identifies the 
value of the pass part together with the 
maximum and minimum limits (+/- 5 % 
modifiable).
Fill Trans Time
P1
P2
Pressure 
Max. limit (+5 %) 
Min. limit (-5%) 
"FAIL part" learning cycle: this cycle is 
not compulsory.  It calculates the actual 
minimum limit in relation to a fail part by 
taking an average between the value of a 
pass part and that of a fail part 
Fill Transfer Time
P1
Bad part 
Pressure 
Good part 
Recalculated 
limit
PB + PM
/2