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Transpector MPS Operating Manual
2
Ensure that the emission has been on and the RGA has been scanning for 30
minutes prior to tuning. Transpector MPS can be tuned either with the EM on
or off.
3
Select the mass to tune using the
TUNE MASSES
drop-down.
The default tune mass is mass 1, but
mass 1 should not be tuned unless
instructed by INFICON.
Transpector Web UI is capable of tuning one mass at a time.
Ensure that a gas is present that represents the selected mass.
4
Transpector MPS will begin scanning based on the tune mass selected, the
tune width selected (±2 AMU is default and satisfactory for fine tuning) and the
Transpector MPS
PARAMETERS
.
5
Click
MARKERS
to display the markers. This will generate a marker that shows
the highest intensity point of the peak and the width at 10% Peak Height.
6
Use
POSITION
to align the
MASS TARGET
to the vertical
MARKER
.
When done properly, the target and marker will overlap.
7
Use
WIDTH
to change the 10% R that is displayed in the
10% R
box.
An ideal 10% R is 0.90 ±0.05.
8
While adjusting the width of the peak, the peak position can change a bit.
Repeat steps 6 and 7 until the peak position is accurate and the 10% R
is 0.90 ±0.05.
9
Repeat Steps 3-8 for each Tune Mass. Then repeat Steps 3-8 for each tune
mass again to make sure that tuning of higher masses have not shifted lower
masses.
10
Once Transpector MPS is tuned, click
SUBMIT
to store the new tune file into
Transpector MPS.
Table 5-5 Factory tune settings
100 AMU
200 AMU
Mass
10% R
Mass
10% R
1
0.5 ±0.10
1
0.5 ±0.10
2
0.9 ±0.05
2
0.9 ±0.05
4
0.9 ±0.05
4
0.9 ±0.05
28
0.9 ±0.05
28
0.9 ±0.05
86
0.9 ±0.05
86
0.9 ±0.05
134
0.9 ±0.05
