• At the same time, the “Oil Mist Alarm” LED (top left) starts to flash red. []
• The “System ready” LED [] stays green.
• If the opacity subsequently decreases, the alarm status is saved.
After a successful function test, the measuring head is returned to its initial state. To do
this, carry out installation steps 1-3 in reverse order.
Screw the screw plug [] from installation step 1 back in, to a torque of 15 Nm.
Finally, acknowledge the “Oil Mist Alarm” LED button [] on the measuring
head.
Dispose of the smoke tube [] from installation step 3 according to the
instructions
The device is ready for operation!
9.1.5 Replacing the seal on the connection box (8,000 hours)
To ensure reliable operation of the VN2020 oil mist detector, the seal on the connection
box has to be replaced after 8,000 operating hours at the latest. The seal (356950) is
part of the Schaller maintenance kit (155006/155004) and can also be ordered
separately from Schaller Automation if required.
Maintenance work on the oil mist detector
Observe the safety instructions in Section 9
Section 9 Maintenance and repair
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