Thermo Scientific Prima PRO User Manual page 73

Status & Tuning Parameters
Checking Mass Alignment
User I/O 3
Comms Quiet
Checking
Alignment
8-12 Prima PRO & Sentinel PRO Mass Spectrometers User Guide
If configured (within GasWorks Hardware Configuration), the User
I/O 3 Comms Quiet status is checking for a break in communications
between the user I/O card I/O 3 port and a user device.
VGiNet
The VGiNet status checks for breaks in the internal VGiNet
communications.
Use this procedure to check that peaks are being produced and that
Mass
they are correctly identified and aligned with the mass scale.
e.g. Mass 28 for N
On the GasWorks toolbar click the
If the system has not been tuned previously, use the Peak Shape and
Sensitivity tabs to do so. Type in the required value for each
parameter and press Enter to set the parameters as follows:






Select Mass Alignment. Set the Start and End masses (typically
beginning with start mass 0, end mass 50), mass Increment (e.g.
0.03), Integration (e.g. 10), measurement Range (e.g. 10), and inlet
Stream (e.g. air or N
Check that peaks are produced and that they are correctly aligned
with the mass scale markers.
Figure 8–2. Mass Alignment tab
in Air
2
Trap current = 20
Quad lens = 0
Resolution DAC = 0
Repeller Voltage = 5
Focus Voltage = 450
Deflection Voltage: = 0
) parameters. Click on the Start Scan button.
2
icon to open Control Centre.
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