The new Schaller Automation Visatron VN2020 Oil Mist Detector
In 2020 Schaller Automation released a new oil mist detector, the Visatron VN2020. Acting as a successor to the VN115 and VN116 lines of models, it improves many aspects of what made the VN115 and VN116 series great. The VN2020 will be especially for 4- stroke engine marked. The VN301plus replaces VN215/87plus for the 2- stoke marked!
How does the Visatron VN2020 work?
Visatron VN2020 continuously and simultaneously evacuate crankcase atmosphere from each crankcase compartment between two main bearings. The VN2020 use a header-suction tube system for this purpose. The oil mist detector is positioned in the middle between two header-suction-tube sections located on the engine sides; from these sections, single-suction tubes branch off near the compartments. These tubes are considerably thinner than the header-suction tubes and they have a throttling effect. Owing to the large header-suction- tube diameter the vacuum and consequently the sample flow at each suction point remain virtually constant. The arrangement of the detector in the middle of the header-suction tube results in an optimally short sample running time in the tube system.
Upgrades
Here are some of the key upgrades that has been made to the Visatron VN2020 OMD:
- Integrated pressure regulator including water separator
- Can be delivered with ATEX/ IECEx standard
- New designed LED panel on measuring head with separate displays for safe reading during operation
- New connection box instead of connection socket used on VN/87plus generation
- New position of Wire Break Resistors inn connection box
- RESET button position directly on measuring head
- Latest SMD component and pressure sensor technology used in measuring head
- No need for scavenging air filters on VN2020- less spare parts required!
- Negative pressure to be read out directly on measuring head display- no need for u- tube manometer!
- CANopen and MODBUS RTU signals!
- New replaceable main cable between measuring head and connection box!
