Hardware manual

4-96 Agilent 7500 Series ICP-MS Hardware Manual
4Maintenance
4 Close the cover on the vacuum chamber.
Place the cover on the vacuum chamber and secure the screws in sequence,
working from one side to the other with the Allen wrench.
5 Make sure the vacuum vent valve is closed.
Re- check the vent valve to make sure it is securely tightened.
6 Close the hoods.
7 Pump down the system.
• Turn on the power.
• Re- start the ICP- MS Top window from MassHunter Workstation (or
ChemStation). If the ICP- MS Top window is already active, completely
close the session and re- start the ICP- MS Top window.
• Select Instrument>>Instrument Control from the ICP- MS Top window.
• On the instrument control window, select Vacuum>>Vacuum ON. After a
short delay the pump will being operating and the pump down will start.
At that point, the O- ring will compress and the upper cover will drop
slightly. Secure the screws on the upper cover one more time.
CAUTION
When the upper cover is opened for a long period of time, or the humidity is high, it can
take longer for the Agilent 7500 to reach Standby mode if any components have been
replaced or cleaned.
If the Agilent 7500 does not reach Standby mode within 5 hours an error will be
generated. After acknowledging the error, change the Agilent 7500 to Standby mode
again.