Inficon Ecotec E3000, Technical Handbook

Page: 78 / 146

4-20
Equipment Settings
ki
n
a
22
e c
h
ap
te
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.fm
te
chn
ica
l ha
nd
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(1
20
6)
Gas A / B
For editing the gas type go to the “
GAS A
” or “
GAS B
” line item and press “E
DIT
”. Only
gases that are listed in the “
GAS
/
TRIGGER
” submenu (Gas1 to Gas4) are available for
selection. The gas type is stated in plain text in parenthesis. The list of maximum four
available gases can be scrolled with the up and down buttons.
Notice: The I•Guide Mode refers to the gases selected in the “
GAS
/
TRIGGER
”
submenu. If you change a gas in the “
GAS
” submenu the gas selected for
the I•Guide program will automatically change as well.
Global trigger A / B
In the
GLOBAL TRIGGER A
/
B
submenu the maximum allowable leak rate for the
complete unit under test can be edited. The same ranges as for a single trigger value
are allowed. The unit of measurement for the global trigger will be the same as
selected for this gas type in the edit gas submenu. If
GAS B
is not selected (
GAS B
= 0),
the
GLOBAL TRIGGER B
is not accessible.
Default value: 10 g/a or 0.357 oz/yr (or the equivalent in any other unit of
measurement)
No. of points
The number of potential leak locations to be checked can be varied between 0 and
99 and can be edited with the up and down keys.
Default value: 4
Notice: The I•Guide mode can also be used as a timer signal only. If the number of
points is set to 0, the Ecotec E3000 will prompt for the next location to be
tested continuously without using the global leak rate function.
Notice: The I•Guide mode can also be used to summarize leak rates on demand.
If the number of points is set to 99, a results screen with summarized global
leak rate will be displayed after the right button has been pressed for 2 s
continuously (or after the 98th point automatically).
Measuring time
The
MEASURING TIME
during which the sniffer tip needs to be hold to the correct
location can be programmed to values between 1.0 and 25.0 s. The
MEASURING TIME
should not be less than the response time of the Ecotec E3000.
We recommend to use the following minimum measuring times:
sniffer line length Refrigerants He H
2
/Forming
gas
3 m 1.0 s 2.2 s 2.7 s
5 m 1.3 s 2.5 s 3.0 s
10 m 2.1 s 3.3 s 3.8 s
15 m 3.3 s 4.5 s 5.0 s