Gas Requirements; Water Temperature Control - Thermo Scientific iCAP 6000 Series Preinstallation Manual

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Gas
The spectrometer will require argon at 6 bar (87psi) (minimum
quality of 99.998% pure with less than 10ppm water and less than
Requirements
10ppm oxygen - used for operation and optical path purge). The
maximum flow requirement will be 25 l/min during installation
For purging the optical path in the spectrometer nitrogen at 5.5 bar
(80psi) (minimum quality of 99.995% pure with less than 10ppm
water and less than 10ppm oxygen) can be used, instead of argon.
The maximum flow requirement will be 15 l/min during installation.
For optimum performance, a quality of 99.998% pure nitrogen is
recommended.
If an additional gas accessory is required (optional), clean oil free air
is required at a pressure of 2.5 bar (35psi) and a flow of approx
-1
100ml.min
The instrument will be supplied with gas tubing terminating in 6mm
outside diameter gas connections (contamination free, refrigeration
grade copper for the purge and plastic for the plasma gas).
Connection to the laboratory gas supply should be within 1 metre of
the instrument. A regulator should be close to the connection.
Care should be taken to ensure that laboratory gas lines do not
contaminate the gases used for the iCAP.
If liquid argon is not used it is recommended that banks of cylinders
be used with switch over valves so that the gas supplies can be used
continuously.
Warning: Nitrogen and argon gas may cause asphyxiation at high
concentrations, appropriate care should be taken.
PLEASE NOTE: GAS REQUIREMENTS ARE
NOT THE SAME AS FOR PREVIOUS
THERMO FISHER ICP SPECTROMETERS.
Water
A recirculating chiller should be used to remove waste heat from the
Temperature
spectrometer. The water temperature should be set to 5°C below the
ambient temperature.
Control
The water used in the chiller must be distilled water containing 5%
by volume of the correct inhibitor (included with maintenance kit
which can be order from your local Thermo Fisher organisation).
Temperature variation must be less than 0.2°C per hour
The flow requirement of the spectrometer is 5 l/min and a cooling
capacity in excess of 900 W.
Thermo Fisher Corporation iCAP 6000 Series