PlasmaQuant 9100 (Elite)
Operation
45
5
Operation
5.1
Switching on the emission spectrometer and igniting the plasma
CAUTION
Risk of ozone and nitrous oxide poisoning
¡
Switch on the exhaust unit prior to igniting the plasma.
¡
Leave the exhaust unit switched on during operation.
Device-internal safety circuits check the following before igniting the plasma:
¡
The gas flow, the cooling and exhaust are switched on and comply with the speci-
fied connection requirements.
¡
The torch is in working position.
¡
The plasma compartment door is closed.
The plasma will not be ignited if a fault is present.
}
Switch on the emission spectrometer via the power switch.
}
Switch on the PC via the power switch and start the operating system.
}
Open the gas supply and set the gases to an inlet pressure of 600 kPa (6 bar).
}
Switch on the exhaust unit.
}
Switch on the recirculating chiller via the power switch.
}
Check that the torch is in the start position. The injector tip must be situated approx.
1 – 2 mm below the bottom edge of the induction coil.
}
Check the cone of the axial observation window for dirt and wear. Check the cone for
proper fit with the supplied C-wrench.
NOTICE! If the cone is loose, it will not be cooled sufficiently and will corrode.
}
Close the door to the plasma compartment.
}
Check the pump hoses. Replace hoses if they have lost elasticity or show strong signs
of wear.
}
Clamp the pump hoses into the hose pump between two stoppers.
}
Place the clamping brackets over the hoses and fasten them with the clamping
levers. Make sure that the clamping levers snap into place!
NOTICE! Note the pump direction! The pump rotates in a counterclockwise direc-
tion!
}
Check whether there is sufficient purging solution in the bottle for the analysis.
The purging solution must have the same acid content as the samples and standard
solutions. Use a 2% nitric acid solution unless specified differently.
}
Empty the waste bottle.
}
For manual operation without a sampler: Insert the sample intake hose in the purg-
ing solution. No air must follow during the plasma ignition process.
}
For manual operation: Switch on the sampler via the power switch and clamp the
pump hoses to the purging pump of the sampler.
}
Start the ASpect PQ program.
}
Select the Routine or Method development option in the Qucik start.