INFICON UL1000 Helium leak detector - Manual (Page 73)

Description of the Menu
73
iina
70
e 0
6
.f
m
te
chn
ica
l ha
nd
boo
k
(1
40
8)
6.6.2 Zero & Background
• Main Menu > Settings > Zero & Background
The kind of background suppression inside the UL1000 and UL1000 Fab and the
function of the Zero button can be selected.
6.6.2.1 Background Suppression
• Main Menu > Settings > Zero & Background > Background Suppression
By this mode the internal helium background of the UL1000 and UL1000 Fab will be
subtracted at every measurement after pressing START. This function helps to save
clean up of the UL1000 and UL1000 Fab after a helium contamination.
6.6.2.2 Zero
• Main Menu > Settings > Zero & Background > Zero
This setting enables (respectively disables) the ZERO button at the control panel.
Softkey 3: Background suppression
Refer to Chapter 6.6.2.1
Softkey 7: Zero
Refer to Chapter 6.6.2.2
Softkey 3: Off
Internal background suppression is switched off
Softkey 7 On
The internal background (see Chapter 6.2.5 ) will be calculated when switching to
STAND-BY mode. This value will be subtracted when pressing START.