PlasmaQuant MS product family
Operation
57
5.7
Shutting down the PlasmaQuant MS
Normally the PlasmaQuant MS should be left in standby mode, with the vacuum
system on and the plasma off, unless it is not going to be used for an extended period
of time (>2 weeks) or needs to be shut down due to interruptions in the laboratory
facilities such as a power outage.
5.7.1
Putting the PlasmaQuant MS into standby mode
NOTICE
In emergency shutdown situations, press the plasma off button (the orange button on
the side panel of the instrument). Do not use the plasma off button for routine plasma
shutdown.
NOTICE
If the exhaust unit is the same for the fore-line roughing pump as for the
PlasmaQuant MS, the exhaust unit must be operated even in standby mode to avoid
pollution caused by oil vapors of the pump.
1.
Flush the nebulizer and spray chamber thoroughly by aspirating ultrapure water.
2.
Click the [P
LASMA
] button on the Main Toolbar, or choose P
LASMA
O
FF
from the
A
CTIONS
menu, or press [F4] to turn off the plasma.
3.
Release the pressure bars and unhook the pump tubing from the grooves at one
end.
5.7.2
Complete shutdown of the PlasmaQuant MS (Power Off)
1.
Flush the nebulizer and spray chamber thoroughly by aspirating ultrapure water.
2.
Click the [V
ACUUM
]
button on the Main Toolbar, or choose V
ACUUM
O
FF
from the
A
CTIONS
menu, or press [F6] to shut down the plasma and the vacuum system.
The vacuum chambers are brought to atmospheric pressure by initiating the
venting sequence, which shuts down the vacuum system components and vents the
vacuum chambers with argon gas.
This process will take approximately 10 minutes.
3.
Turn off the gas supply to the instrument, including iCRC gases.
4.
Turn off the cooling water supply to the instrument.
5.
Release the pressure bars and unhook the pump tubing from the grooves at one
end.
It is now safe to turn off the power to the PlasmaQuant MS and to shut down
the exhaust unit.