Chapter 3 – Start-up and settings
UM-18400E-U ATEQ F580 User manual Page 49/168
4.4.4. Test time
The test time depends on the programmed reject level and operation mode
In the dP/dt (Pa/s) mode, the variation in measured pressure is due to the drift in the
pressure drop. .
In the dP (Pa) mode, the pressure variation measured is the total of the pressure drop
over the whole test time. This mode is more unstable, but is more sensitive. The
instrument totals all the variations occurring due to variations in volume or temperature
over the whole test time.
)Set this parameter using the method described in § 4.4.
4.4.5. Dump time
The instrument will as default propose a dump time of zero. This must be set by
carrying out several tests.
)Set this parameter using the method described in § 4.4.
4.4.6. Pressure units
The different units are bar, mbar, PSI, Pa, kPa, MPa.
) Set this parameter using the method described in § 4.4.
4.4.7. Maximum fill
This function is used to set a maximum limit for the fill pressure. A warning is triggered if
this limit is exceeded.
When test time is infinite, the maximum fill pressure monitoring is
inoperative. Care should therefore be taken to avoid excess pressure being
applied to the part during the test.
) Set this parameter using the method described in § 4.4.
4.4.8. Minimum fill
This function is used to set a minimum limit for the fill pressure. A warning is triggered if
this limit is not reached.
) Set this parameter using the method described in § 4.4.
4.4.9. Filling instruction
This function gives the user the option not to have to adjust the test pressure manually
using the regulator. Simply set the test pressure value and the instrument adjusts it
automatically. This function can be used with a mechanical regulator (regulator with an
adjustable knob) or an electronic regulator (no adjustment).
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