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7.Exit the test result interface: long press
Tip: The instrument has a built-in temperature compensation
function, which can perform the air tightness test of the
compression system. Leak analysis is performed by measuring
system pressure and ambient temperature over a period of time . If
the temperature compensation function is not required, it can be
turned off in the settings.
3.4 Vacuum measurement mode(VAC)
Note: This function needs to be purchased before it can be used, and
the purchase method is detailed in 4.4 of this article.
1. Connect the system to the high pressure side and open the high
pressure side valve.
The high-voltage side channel is the vacuum test port of the
!
system.
2.Enter the vacuum mode: press the
same time , the upper left corner of the window will display VAC.
3. The product is connected to the vacuum pump and the system
under test.
4. Turn on the vacuum pump to extract the pressure in the system.
When the pressure in the system is lower than the atmospheric
!
pressure (that is, the pressure display is less than 0), it will display the
vacuum degree of the system, otherwise it will display - - - -.
Figure 6 Test result display interface
the button.
and
button at the
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