PerkinElmer AVIO 500, Customer Hardware And Service Manual

Page: 90 / 355

88
System Description
RF Control Electronics
The RF generator uses solid-state circuits. The solid state RF generator is designed
to significantly increase reliability and reduce the need for recalibration.
The RF generator also monitors plasma conditions. If the plasma is unstable, the
system automatically shuts it off.
To ensure operator safety and to protect the instrument from damage, the system
includes extensive use of RF shielding and safety interlocks. Proper RF shielding
and filtering are provided so that the system complies with FCC and CE regulations
regarding radio frequency radiation.
Sample Compartment
The sample compartment is located below the torch compartment. The sample
introduction system is always visible and accessible even during operation. The
spray chamber, nebulizer, injector and torch can all be accessed underneath the
torch compartment without opening the door. The torch compartment door has a
window so that the operator can safely view the plasma and safety interlocks that
shut down the plasma if the door is opened during operation. The torch
compartment has extensive shielding to prevent exposure to radio frequency
radiation.
Sample Introduction System
Quick-Change Adjustable Torch Module
The Quick-Change Adjustable Torch Module is the quartz torch, injector, spray
chamber, and nebulizer/end cap – all in one assembly for the Avio 500 instrument.
This module can be quickly removed from the sample compartment. This
adjustable mount allows the torch an adjustment of up to 5 mm.
In addition, adapters are available for special applications, such as the use of an
ultrasonic nebulizer or an external spray chamber.