Hardware manual

Startup, Shutdown and Status 3
Agilent 7500 Series ICP-MS Hardware Manual 3-11
Putting the Instrument in Shutdown Mode
To return the instrument to Shutdown mode, complete the following steps:
1 Put the Instrument into Standby Mode
Follow the instructions for “Putting the Instrument in Standby Mode”
2 Supply argon gas by opening the argon gas valve.
When the instrument is changing to Shutdown mode, argon gas is
introduced into the vacuum chamber. For this reason, the argon gas supply
needs to be opened until the instrument has switched to Shutdown mode.
3 Select Vacuum>>Vacuum Off
The dialog box appears.
Figure 23
4 Click Yes.
The instrument starts to go to Shutdown mode. After a short time, argon
gas is introduced into the vacuum chamber. This is done to prevent pump
oil from going up into the vacuum chamber. The turbo and rotary pumps
are turned off. Only the main power to the instrument remains on. The title
bar of the instrument control task shows that the instrument changes to
Shutdown mode.
NOTE
Turning off the computer and printer while the instrument is in the Standby mode will not
cause any problems.
CAUTION
Except in emergency situations, you should put the Agilent 7500 into the Shutdown
mode before turning off the main power.
NOTE
Do not turn off the main power until the mode has changed to Shutdown. It takes about
5-10 minutes to change from Standby to Shutdown.