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Laboratory Environment
Temperature control
Most of the heat generated by the Agilent 4100 MP-AES instrument
into the laboratory is extracted from the laboratory by the exhaust
system. When the plasma is operating, approximately 200 W of heat
from the instrument electronics flows into the laboratory.
Cleanliness
Limit dust levels to less than 36,000,000 particles (0.5 microns or
larger) per cubic meter of air. This is equivalent to a very clean office.
Instrument cooling air supply
The Agilent 4100 MP-AES instrument requires clean, dry, oil-free
non-corrosive air for cooling purposes. This is supplied to the
instrument through an air inlet vent located at the top, rear of the
instrument. The vent is fitted with a dust filter, to filter out large
particulate matter from the surrounding environment.
The air supply is used to cool the internal mechanical and electronic
components of the instrument. Several of these assemblies contain
parts prone to corrosion. The introduction of cooling air
contaminated with high levels of acid vapor or other corrosive
substances may cause damage to the instrument.
For laboratories where sample preparation facilities are in the same
area or where the lab environment is contaminated with acid vapor
or other corrosive substances, an external cooling air supply to the
instrument must be provided. The cooling air should be supplied
from an environmentally controlled area that is away from the
instrument exhaust and any other area where corrosive materials are
stored or used.
The cooling air system with flue, fan and ducting must provide a
3
minimum positive flow of 3 m
/min (106 cfm). The ducting should be
corrosion resistant and fire-proof.
Agilent 4100 Microwave Plasma Atomic Emission Spectrometer Site Preparation Guide
21
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