Operating manual VISATRON® Oil Mist Detector VN2020 / VN2020 EX
Part number 183001 Version 3.0
ASSEMBLY AND INSTALLATION
4. Acknowledge a detected alarm using the [] button on the measuring head as soon as
the relative oil mist concentration is < 70%.
5. Carry out steps 1-4 at all suction points of the installation, thereby ensuring that the
whole system is functioning.
6. Dispose of the used smoke tubes as per Section 11.1
Section 11.1 Disposal
The VISATRON
®
VN2020 oil mist detector is now ready for
operation!
6.5.6 Factory test by the engine builder with smoke generator on starting up
Risk of oil mist explosion
Engine protection not guaranteed!
The oil mist detector may only be started up after all the components have
been completely attached
To establish protection of the engine, start up the oil mist detector for the first
time with the engine stopped.
Before starting the on-board test, all the header pipes have to be clean and, if
used, all the siphons have to be filled with oil.
Section 6.3.5 Installing the siphon
block assembly
Failure to comply with the safety instructions may result in major damage to property
or the environment and in serious injury or death.
Familiarise yourself with the basic safety instructions before starting electrical
installation.
Section 2.4 Basic safety instructions
If the oil mist detector is operated in explosion-proof areas, the relevant safety
instructions must be observed.
Section 2.4.1 Safety instructions for potentially explosive
atmospheres
Safe and proper use of the device
Read the operating manual and other documents that accompany the product
carefully and keep them in a suitable place for future reference.
For repair and service work, you must follow the instructions in the operating
manual.
The VN2020 / VN2020 EX devices can alternatively be tested by a smoke test. As the
test equipment is not normally available on ships, SCHALLER AUTOMATION
recommends that this test is only carried out during factory testing with the SCHALLER
smoke generator (see figure below).
If there is a smoke generator available on board a ship, this test can also be carried out.
However, the following warning must be observed in this case.
The entire oil mist detection system (including lines) can only be tested when the engine
is at a standstill.
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