Functional description
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Preparatory steps
Prior to using the device the SF
6
and CF
4
supply is to be connected.
The SF
6
should be taken from a tank in liquid form, if possible. The tank (e. g. large capacity tanks) can
be put into the correct position by turning. The SF
6
is converted to the gaseous phase with the installed
evaporator. The tank is connected to the coupling pos. 734 with the connecting hose.
The connecting hoses must be evacuated or filled with gas!
The CF
4
is taken from a gas cylinder in gaseous form.
The bottle pressure reducer should be set to 8– 10 bar (116- 145 psig) so that a sufficient high primary
pressure is available for mixture. The connecting hose is connected to the coupling pos. 736.
For both gases a pressure switch (adjusting pressure about 4 bar/ 58 psig) is provided. If the primary
pressure of a gas is too low the mixing process is to be interrupted. But this should be avoided as
divergences in the mixing ratio may occur.
A tank for the final mixture is connected to the outlet coupling (pos. 103). The max. filling pressure is 40
bar (580 psig).
Warning
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