Sniffing mode
Hard
vacuum
mode
T
arget
value
(*)
adjustment
manually
automatically
Adjustment
C C
304
COR
(*)
The
target value is the desired value to be displayed on the
digital
display at the end of the calibration..
The
target value can be memorized following 2 methods:
•
the operator
enters
directly the target value,
•
the target value is automatically calculated by the leak detector.
About sniffing
test
mode
In sniffing
test
mode, the calibration can be performed with:
•
the ambient atmosphere,
•
an external calibrated leak,
•
a container or installation, at
atmospheric
pressure,
filled with a known gas mixture including Helium.
The
sniffer probe will be exposed to one of the 3 items
listed above (3rd one
represents
the
most
reliable and accurate
way
of calibrating a leak
detector
in sniffing mode).
The
l
st
and 2nd
ones
are the
most common
and practical methods.
Before
using one of the 2
items, connect
the sniffer probe to the sniffer
port of the leak detector.