Operating manual for the VISATRON VN2020
V2.0 12/2021 EN
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SCHALLER AUTOMATION
66440 Blieskastel / Saarland / Germany / Industriering 14 / P.O. Box 1280
Industrielle Automationstechnik GmbH & Co. KG
T
el. +49(0)6842-508
-
0
/ Fax -260 / Email: [email protected] /
www.schaller-automation.com
3. Product description and technical data
3.1. Product description
The VISATRON® VN2020 oil mist detector from SCHALLER AUTOMATION is design to
protect large engines (gas, diesel and dual fuel) from oil mist explosions caused by the
spontaneous development of oil mist in the crankcase. It is part of a safety system to protect
the life and health of operating personnel and it prevents serious consequential damage.
The oil mist detector has been developed by SCHALLER AUTOMATION according to the
guidelines of the International Association of Classification Societies (IACS) IACS UR M10.
The oil mist detector works on the Venturi principle to draw the oil mist atmosphere out of the
crankcase.
Monitoring is implemented via an optical measuring track in the device
’s measuring head.
The active and permanent suction of the crankcase atmosphere ensures that there are short
response times between the formation of the oil mist and the start of the oil mist alarm.
To avoid false alarms from spray oil, the intake system uses special Schaller Automation
suction funnels that can be used regardless of the direction of rotation of the motor. One
suction funnel is always required per suction point. This protects the system from the ingress
of splash oil.
During normal engine operation, the oil mist detector draws in any existing oil mist. This oil
mist can settle in the suction lines.
Schaller Automation uses a drainage concept at this point and returns the excess oil back to
the engine crankcase.
Additional draining components ensure that the system operates correctly under all operating
conditions.
This includes deployment in stationary power plants, as well as on ships with their static or
dynamic inclination angles.
