Replacing The Ion Block Source Heater - Waters Vion IMS QTof Overview And Maintenance Manual

5.23 Replacing the ion block source heater

Replace the ion block source heater if it fails to heat the ion block when the instrument is
pumped-down (evacuated).
Required materials
• Chemical-resistant, powder-free gloves
• Needle-nose pliers
• Combined 2.5-mm hex wrench and cone extraction tool
• New ion block source heater assembly
To replace the ion block source heater:
1. Remove the ion block assembly from the instrument (see
assembly from the source assembly (Page
2. Ensure that the isolation valve is closed.
Figure 5–94: Ion block assembly
Source isolation valve handle in closed position
Sampling cone assembly retaining blocks
Cone gas nozzle handle
3. Use the combined 2.5-mm hex wrench and cone extraction tool to loosen the two captive
screws securing the ion block cover plate.
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Removing the ion block