Thermo Scientific Prima PRO, User Manual

Page: 59 / 203

Startup & Shutdown
Procedure
7-10 Prima PRO & Sentinel PRO Mass Spectrometers User Guide Thermo Fisher Scientific
The Heaters tab ( Figure 7–11 ) allows for adjustment and setting of
the source temperature, inlet probe heater power, RMS body
temperature, and RMS sample tube temperature.
Figure 7
–11.
Heaters tab
Open the Instrument Status window (see Figure 7–2 ). The tabs and
the readings displayed under each tab are listed below.
Analyser tab

Cabinet temperature: Within the range 10°C to 35°C.

Electronics temperature: Within the range 10°C to 45°C.

System pressure: Typically 5 x 10
-6
mbar, but application
dependent. Refer to installation records for setting of
optimum pressure.
Source tab

Ion energy: Approximately 1000 V (for 150 amu mass range)
or 800 V (for 200 amu mass range).

Electron energy: Typically set to 70 V.

Filament current: Depends on filament type:

2.4-2.9 A for a Thoria coated iridium filament

1.5-2.5 A for a W/ThO coiled filament

3.0- 3.8 A for a Re filament
Note
If filament is close to zero, check that Trap Current is
set to at least 20 µA and EE is at least 50 V. 
Heaters
Checking
Instrument
Status
Parameters