6
Maintenance
Replacing the Temperature Controller PCB
36
EASY-Spray Series Ion Source User Guide
Thermo Scientific
Replacing the Temperature Controller PCB
If the temperature controller PCB becomes damaged, the actual temperature display might
remain off and the EASY-Spray column might not heat. Follow this procedure to install a new
PCB.
To replace the temperature controller PCB
1. Follow the procedure
To remove the ion source from the MS
.
2. Using a 2.5 mm hex key, remove the four hex screws located on the bottom of the ion
source. If you previously installed the temperature controller PCB, P/N ES233, in the
EASY-Spray source, remove the additional cover plate (
Figure 23.
EASY-Spray ion source (bottom) with the new temperature controller PCB
and extra cover plate
3. Slowly pull out the enclosure for the temperature controller PCB (
Figure 24.
Temperature controller PCB (P/N ES233)
CAUTION High voltage.
To prevent electric shock, make sure that you disconnect the
P-Bus cable before you remove the PCB.
Note
The cover plate is for use on the EASY-Spray ion source (ES081) only when
installing the ES233 temperature controller PCB.
IMPORTANT
If you remove the temperature controller PCB too quickly or at an
angle, you might damage the PCB components or the internal heater cable routed
above the PCB.
EASY-Spray housing
Temperature controller
PCB (ES233)
Cover plate