Waters Xevo TQ-XS Mass, Overview And Maintenance Manual

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Figure 4–40: Inserting the gasket
Metal gasket
ESI probe tip
Stainless steel tube
2. Fit the probe tip, and screw the tip onto the probe assembly.
3. Use the 7-mm wrench in conjunction with the 10-mm wrench to tighten the probe tip.
Important:
To avoid gas leakage, fully tighten the probe tip.
4. Fit the ESI probe adaptor to the source (see Installing the probe adaptor ).
5. If required, re-optimize the probe position (see the mass spectrometer's online Help).
4.18 Cleaning the APCI probe tip
Clean the APCI probe tip when you detect buffer buildup on the probe tip or when the signal
intensity weakens. See the mass spectrometer’s online Help for further details.
To clean the APCI probe tip:
1. On the Manual Optimization page, click Stop fluidics .
2. To start the API gas flow, click Gas .
3. Set Desolvation Gas to 650 L/h.
4. Set APCI probe Temp to 650 °C.
5. Click Operate .
6. Wait 10 minutes.
Rationale:
The high APCI probe heater temperature removes any chemical
contamination from the probe tip.
7. Click Standby .
June 9, 2016, 715004990 Rev. A
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