Installation and commissioning
HS 55 (Batch Mode)
30
}
Close the Hydride system window.
ü
The new module is ready for operation.
4.3
Installing the HydrEA system
NOTICE
Error message when the dummy plug is missing
No cell unit is used for the HydrEA method. The Hg/hydride system emits an acoustic
signal if the temperature sensor connection is open.
¡
To ensure proper operation of the device, insert the dummy plug included in the de-
livery into the temperature sensor connection.
Carry out the installation steps in the following sequence:
}
If the Hg/hydride system is already installed: prepare the analysis system for the Hy-
drEA system.
}
Install and adjust the graphite tube system and the autosampler for the graphite
tube furnace (AS-GF) as described in the user manual for the AAS device.
}
Coat the graphite tube with iridium or gold.
}
Install the HydrEA system in the Hg/hydride system.
}
Adjust the autosampler for the graphite tube furnace with the titanium cannula (for
the HydrEA system).
4.3.1
Preparing the analysis system for the HydrEA system
CAUTION
Dangerous voltage at the cell heating connection
Dangerous voltage may be present at the cell heating connection.
¡
Only connect the device and the other components to the power grid when they are
switched off.
¡
Only connect and disconnect electrical connection cables between the system com-
ponents when the system is switched off. Otherwise the sensitive electronics may
also get damaged.
To convert the analysis system from the hydride system or Hg cold vapor system to the
HydrEA system, prepare it as follows:
}
Switch off the device and the AAS. Disconnect the power plug from the power outlet.
}
Allow the cell unit to cool down.
CAUTION! Risk of burns at the cell unit!
}
Disconnect the connection cables for the temperature sensor and the cell heating
from the Hg/hydride system.
}
Insert the short-circuit plug into the temperature sensor connection.
}
If the basic device has only one sample chamber: remove the flame autosampler
from the sample chamber and put it next to the Hg/hydride system.
}
Disconnect the cell hose from the cell.
