Maintenance and care
multi EA 5000
142
14.8 Checking the system for leaks
}
Switch on the basic module and the system components.
}
Open the gas supply.
}
Start the multiWin program.
}
Activate a method.
ü
The current gas flows are displayed in the Status analyzer window.
Faulty gas inlet flows are marked in red in the Status analyzer window.
MFC
1
300 ml/min
Oxygen (primary oxygen), hose 3, value cannot
be changed in the method
MFC
2
0 ml/min (idle state)
Oxygen for post-combustion phase, hose 4, gas
inlet on the combustion tube, value is set in the
method
MFC
3
100 to 200 ml/min
(example)
Pyrolysis gas (argon), hose 4, gas inlet on the
combustion tube, value is set in the method
14.8.1 System tightness for N/S/C methods
The system tightness for N/S/C methods is monitored automatically. If the system is
leaking, the Gas leak message will appear in the Status analyzer window and the MFC 1
display is marked in red. Starting a measurement is not possible.
14.8.2 System tightness for Cl methods
WARNING
Risk of chemical burns
Concentrated sulfuric acid is used in the detection module as a drying agent. The con-
centrated acid can lead to severe chemical burns.
¡
Wear protective clothing when working with these hazardous substances.
¡
Completely empty the sulfuric acid container prior to the system tightness check.
¡
Observe all notes and specifications in the safety data sheet.
NOTICE
Risk of destruction of the internal MFM due to corrosive gas
¡
To check the system tightness, only use the flow monitoring set included in the
scope of delivery.
The check of the system tightness is not performed automatically, but instead manually
using the hose set (flow monitoring set) included in the scope of delivery.
