The Visatron VN215/87 Plus operates in a similar same way as the Visatron VN 116/87 Plus when it comes to a high oil mist alarm tripping. The Visatron VN215/87 Plus is able to indicate the suction point with the highest opacity, and thus the compartment in which the overheating damage has been done.
The Visatron VN215/87 Plus has a single-suction-tube system, and each compartment is being connected by a separate tube to the valve box that is designed for 10 suction lines.
The compound opacity of the oil mist from all compartments is continuously measured. If the opacity exceeds the damage check starting threshold, a damage check will be executed. If the differential alarm level is exceeded, an alarm causes the automatic stop of the machine or a speed reduction will immediately be tripped, even if the search run is not yet terminated.
