PerkinElmer AAnalyst 700, User Manual

Page: 80 / 194

Preparing the System
3 -12
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Shutting down the system
Note: In an emergency, switch off the spectrometer using the operational on/off
switch on the front panel.
The flame is automatically extinguished and the gases shut down in a safe
sequence.
See page 3-14 for the procedure to follow after an emergency shutdown.
You must shut down each atomizer correctly before you shut down the
spectrometer.
To shut down the flame system
1. With the flame still burning, aspirate the correct rinsing solutions to rinse the
burner system ( see ‘Extinguishing the flame’ in the Burner System User’s
Guide for detailed information ).
Either aspirate the solutions manually or use the flame autosampler.
2. Extinguish the flame and bleed the gas lines:
1. In the
Flame Control
window, click on the
Flame
icon.
The system uses a predetermined shutdown sequence to extinguish the
flame safely.
2. Shut down the gases to the spectrometer at source.
3. In the
Flame Control
window, click on
Bleed Gases
to depressurize the gas
lines.
To shut down the furnace system
1. Flush the furnace autosampler rinsing system ( see ‘Autosampler maintenance
procedures’ in the Graphite Furnace User’s Guide for detailed information ).
2. Shut down the furnace gases to the spectrometer at source.