Maintenance and care
multi EA 5000
144
14.8.3 System tightness for TOC methods
System tightness for the gas path from the inlet of the basic module to the outlet of the
TOC module is not regulated automatically. Use the hose set included in the scope of de-
livery and proceed as follows:
ð
The basic module and the detection module are switched on and connected.
ð
The carrier gas supply is open.
ð
The multiWin control and analysis software has been started.
ð
A method for TOC determination is active (see software manual).
}
Assemble the flow monitoring set (→ "System tightness for Cl methods"
}
Connect hose 5 of the flow monitoring set to the "sample out" outlet on the rear of
the detection module.
}
Open the doors of the basic module.
}
If necessary, disconnect the connection on the "MFM in" connection. The connection
is located on the cover plate of the control electronics on the right in the basic mod-
ule (→ "System tightness for Cl methods"
142).
}
Connect the other end of the hose set with the "MFM in" inlet on the basic module.
}
Read the current gas flow in the System |Component test menu under Device |Con-
trol flow.
}
If the displayed flow differs from the target flow by more than ± 5 ml/min, search for
and remedy the possible causes. Contact the customer service department if this is
not successful.
ü
The target flow is displayed in the Status analyzer window:
Target
Description
MFC 1
200 ml/min
Primary oxygen (hose 3) in the basic module,
value cannot be changed in the method
MFC 2
0 ml/min
MFC 2 and MFC 3 are in standby during TOC op-
eration.
MFC 3
14.9 Removing and installing the combustion furnace
WARNING
Risk of electrical shock
¡
Before installing the combustion furnace, switch off the basic device via the power
switch and disconnect the power plug from the power outlet!
CAUTION
Risk of burns at the hot furnace
¡
Switch off the device and allow it to cool before performing maintenance.
