4-12 Equipment Settings
kina22e chapter 4.fm technical handbook(1206)
4.5 Settings Sub-menu
In the settings sub-menu several settings which are important for the leak testing
procedure can be edited.
4.5.1 Vacuum & Access Menu
In the VACUUM & ACCESS sub-menu setting monitoring functions like the ZERO
function, the flow limits setting and the sensitivity check can be edited.
Zero
When pressing the
ZERO button the ZERO function will be enabled or disabled.
When the
ZERO function is enabled the currently detected background level of
refrigerant is set to
ZERO and only increased levels of refrigerant are displayed.
The
ZERO level is adjusted automatically on decreasing backgrounds.
If the use of the
ZERO function is allowed, the leak rate which is currently being
displayed is saved as the "
ZERO level” after having operated the ZERO button, i.e. the
lower display limit will be displayed (for example, 0.05 g/a).
Only values above this
ZERO level are indicated so that resolution of the displayed
measurement signal is improved.
Notice: It is not possible to reduce the detection limit of the Ecotec E3000 by
pressing the
ZERO button, only resolution is improved.
Should the background which has been suppressed using the
ZERO button change,
the
ZERO level is updated automatically. This avoids a condition were a leak is not
detected because the
ZERO level mode has been activated.
The
ZERO function may be controlled by the left sniffer button and / or the ZERO button
on the main display. The
ZERO function may be enabled or disabled for both buttons
separately.
Zero time
The
ZERO function is automatically updated when the background decreases so that
negative values will never be displayed, thus avoiding unintended missing of leaks.
The
ZERO TIME is the time the leak rate has to be negative in order for the Ecotec
E3000 to update the background level.
The
ZERO TIME can be set to values between 1.0 and 9.9 s.
Default value: 5.0 s
Default value:
Sniffer probe: enabled
Main unit: enabled
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