PerkinElmer AVIO 500, Customer Hardware And Service Manual

Page: 112 / 355

110
System Description
Specifications
ICP System Specifications
Frequency: 40 MHz, free-running
Output Power Stability: <0.1%
Power Output: 2200 watts, computer-controllable in 1 watt increments. RF
generator is located in the left side of the instrument for efficient use of laboratory
space.
RF Shielding: Meets all FCC requirements for RF emission.
Plasma Induction Plates
Cooling Water: System requires a flow of 1 gal/min at 310 to 550 kPa at a
temperature between 15 °C and 25 °C. A recirculating cooling system is required
(PolyScience or equivalent is recommended).
Automatic Ignition: Plasma ignition is computer controlled and totally
automated. The plasma can be turned on at a set time, warming up the system prior
to an analysis, and can be turned off automatically after an analysis.
Safety Interlocks: System checks water flow, shear gas flow, argon pressures,
emergency plasma off switch, torch compartment door interlocks, torch installed
and plasma stability. The status of these interlocks is constantly monitored and text
information is displayed on the computer screen. If any interlock is interrupted, the
plasma is shut down automatically.
Gas Flow Controls
Plasma Argon Flow: Closed-loop flow control using a proportional valve and a
measured pressure across a known resistor. Computer-controlled to regulate the
flow automatically within the range of 8 to 17.0 liter/minute in 1.0 liter/minute
increments.The flow system is interlocked to prevent ignition without plasma gas
flowing.
Auxiliary Argon Flow: Closed-loop flow control using a proportional valve and
a measured pressure across a known resistor. Computer-controlled to regulate the