Thermo Scientific 5030i SHARP, Инструкция по эксплуатации

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Calibration
Calibration Procedure
4-8 Model 5030 i SHARP Instruction Manual Thermo Fisher Scientific
The Mass Calibration submenu is used to view and set the mass calibration
point. The mass calibration screen is visible only when the instrument is in
service mode. For more information on the service mode, see “
Service
Mode ” earlier in the chapter.
Note This adjustment should only be performed by an instrument service
technician.
▲
●
In the Main Menu, choose Service > Mass Calibration>Mass
Coefficient .
MASS CALIBRATION:
THERMAL COEFFICIENT
VACUUM COEFFICIENT
BARO COEFFICIENT
>MASS COEFFICIENT
ALPHA EFF COEFFICIENT
RANGE AVG DIAGS ALARM
It is recommended to perform an annual Mass Coefficient on the Model
5030
i Beta Monitor.
●
The foil sets must be kept in a clean container. Do not touch the foil
window with your fingers.
●
The foils must not be wiped, otherwise a loss or gain of mass can occur
thereby biasing the mass calibration.
●
Foils sets can be returned to Thermo Fisher Scientific for recalibration
as necessary.
●
Separate foil sets are recommended for periodic QC checks, auditing,
and calibration.
●
Should the user suspect the foil window(s) has been damaged,
scratched, or coated, these foil sets should be returned to Thermo
Fisher Scientific for re-calibration.
The null foil has the same approximate mass as a clean filter spot and the
span foil is a calibrated mass increase above the null foil. Therefore, the
foils come in a set and must not be mixed with other sets since a bias in
mass calibration will occur.
Since the beta attenuation method is linear with mass increase, the Model
5030
i need not be calibrated in the exact range of beta attenuation per filter
spot. What is important, is calibrating the corresponding beta count
reduction with an increase of calibrated mass.