6
Using EA IsoLink IRMS System for CNSOH
Performing a Jump Calibration
86
EA IsoLink IRMS System for CNSOH Operating Manual
Thermo Scientific
a.
In the list of available Jump Calibrations, mark the one for
H
2
--> CO
by clicking its No.
(for example 001).
–
Slow
: compensate hysteresis by Max/Min settings of the magnet.
–
Fast
: magnet setting of Jump Calibration.
–
HV
: high voltage setting of Jump Calibration.
b. Press
Recalibrate
Icon
.
5. Confirm with Yes, because you have already opened the Reference Port.
6. Start Jump Calibration Procedure.
a.
Jump to
CO
(along hysteresis curve).
b. Perform a peak center for
CO
in order to get the signal height.
c.
Jump to
H
2
(along hysteresis curve; H
is origin).
d. Jump to CO (not along hysteresis curve).
e.
Perform a peak center for
CO
in order to catch the peak.
f.
Repeat until magnet field setting is within the
magnet window
defined.
Note
If no Jump Calibration is available in the list, create a new one as shown below:
How to Create a new Jump Calibration:
• Click
New
.
• From
Gasconfiguration
, select
H
2
.
• To
Gasconfiguration
, choose
CO
.
• Accept the default values.
• Click
OK
.
Note
Magnet jumps are always from a low mass to a high mass (e.g. 2 to 28 at
H
2
-> CO, or 28 to 44 at N
2
->CO
2
).
