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7 Operations Listed By Purposes
7
1.2 Manual Entry of K(Ve) Value (Leak Coefficient)
Manually enter the calculated K(Ve)
> Main Menu > K(Ve) > K(Ve) Settings > Basic Settings > K(Ve) Value
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What to do
• Use Mastering Compensation
• Use Bypass Circuit Unit (Option)
2.1 Setting Mastering Compensation
The measured pressure change in a leak test typically contains both the true leakage and drift errors due to
adiabatic compression and changes in the ambient temperature. The pressure change due to leakage
remains constant, while the drift portion decreases to zero. In other words, it reaches a completely stable
state, over time. Therefore, when the detect stage is repeated a number of times, the measured pressure
changes become more and more stable, and thus the true leak amount is finally measured.
Mastering compensation feature is Disabled as default.
Mastering Compensation feature is Disabled for the default.
1) Connect a Reference Master to the MASTER port.
Master should be a Master Chamber or known non-leaking part
2)
Connect a known non-leaking part to the WORK port.
3)
Select a channel
> Main Menu >Comp. > Mastering Settings > Basic Settings
4)
Enable Mastering Compensation Feature
Mastering Comp > Enable
5)
Set MB1 (Mastering Equalization) timer to 1.0 [s] and MB2 (Mastering
Stabilization) timer to 2.0 [s] and Mastering Iterations to 5.
6)
Press to go to the Home screen.
Mastering Process
After normal leak test, the MB1, MB2 and DET stage are
repeated for the specified number of iterations.
Mastering Value Sampling
Mastering process to sample Mastering value.
Mastering Compensation
A compensation feature that measured data is compensated by
Mastering Value obtained through the Mastering Value Sampling.
Attention
