Operation
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SPECTRO ARCOS FHX3X — 08.02.2022
6.2
Preparation of the instrument
Before switching on the instrument, proceed as follows:
1. Instructions on how to install the Plasma torch and the sample introduction
system, see page 41.
2. Open the Argon supply valve.
Set the Argon pressure to 7 bar.
The plasma cannot be started at a pressure of < 6.0 bar. A
corresponding error message will be displayed.
3. Ensure that the extraction system is activated and that the specified exhaust
capacity is reached.
4. Ensure that all flaps and doors are closed.
The instrument is ready for use.
6.3
Switch on the instrument, ready for operation, plasma start
Information
Never operate the plasma while the door to the plasma torch box is open. If the
window (protective pane) is damaged, do not use the instrument.
The instrument must only be started with the blind plug and plasma torch inserted
or only with the plasma torch mounting (option).
After switching on the instrument it must be stabilized for at least 3 hours to ensure
specification-compliant operation.
This may take longer because this procedure is dependent on the temperature
during instrument transport and/or storage.
Ensure that the operating temperature for the optical system (15 °C (59 °F)) has
been reached before engaging in any other tasks.
The plasma can be started either directly after the instrument has been switched
on or after the stabilization period.
When the plasma is started, a suitable blank sample should be nebulized during
the stabilization period (see point 7).
A tube connected to the peristaltic pump is used to insert the samples.
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