Zell AC1800, Operation Manual

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1. Press button, the device comes to vacuum mode.
Note: at the time you can keep pressing button for a manual vacuum.
If you do so, whatever the pressure is, the gas would be exhausted outside. Be
careful for this operation, the introduced pressure is less than 0.5 bar, or when the
gases rush out, the vacuum pump oil would spray.
Since the Max beginning pressure is -0.2 bar, if you want to launch the operation from 0
bar, you can keep pressing the
button to push the the pressure from 0 to -0.2
bar or below, then you can go on the usual work.