Plasma Shear; Drain Vessels - PerkinElmer AVIO 500 Customer Hardware And Service Manual

be used with argon and nitrogen is available from PerkinElmer (Part No.
03030284). The regulator can be used with CGA 580 or CGA 590 fittings.

Plasma Shear

The Avio 500 uses a shear gas to remove the plasma plume and to keep the heat
away from the optics. Either clean air or nitrogen can be used for the shear gas. The
shear flow is 25 L/min (1 cubic foot/min) at a minimum of 550 kPa (80 psig). While
cylinders of compressed air can be used, an air compressor is more practical.
However, because the shear gas must be clean and dry, the Avio 500 includes an
installable air-dryer assembly. The air hoses are supplied with 0.25-inch
Swagelok® fittings and the assembly mounts on the lab wall. In humid
environments, this may not be adequate to ensure that the compressed air is dry.
Additional filters or condensers may be a necessary part of the air supply system.

Drain Vessels

A drain vessel (Part No. 09904991) and end cap (Part No. N0690271) are supplied
with the Avio 500 systems. The vessel is made of plastic and is used to gather the
effluent from the ICP torch. The drain vessel should be placed on the floor in front
of the ICP-OES. The drain vessel should not be stored in an enclosed storage area.
The drain system should be checked regularly and replaced when necessary.
Should it become necessary to replace the drain vessel, it should be made from a
material not likely to be impacted by samples being analyzed. Glass or other brittle
materials must not be used. Separate drain vessels must be used for acid-containing
aqueous and organic samples.
Gases for the Avio 500 ICP
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