Fronius Exento LowVac Serie Manual De Instrucciones página 60

• Indicator lamp (Pos. 2)
If the yellow indicator lamp lights up, one of the following faults is
present:
• Motor protection switch has triggered
• Phase error/missing phase
• Filter change necessary
See also chapter "Troubleshooting".
• Installation opening for start/stop automation (Pos. 3)
For retrofitting the optionally available automatic start-stop system.
See also chapter "Spare parts and accessories".
- Pressure measuring port (Pos. 4)
The manufacturer's service can carry out pressure measurements via
this port.
• Signal horn (item 5)
Reliable capture of welding fumes is only possible with sufficient
extraction capacity. As the dust accumulation in the filter increases, its
flow resistance increases and the extraction capacity decreases. As soon
as it drops below a minimum value, the signal horn will sound. A filter
change is required.
The same happens if the throttle valve in the extraction hood is closed
too far or there is a blockage. See also chapter "Troubleshooting"
- Pressure switch (Pos. 6)
The manufacturer's service can make adjustments via this connection.
6.3 Positioning the extraction hood
The extraction arm or extraction hood is designed in such a way that it can
be adjusted and moved easily by hand. Once it has been positioned, the
extraction hood maintains its set position of its own accord. Furthermore,
both the extraction hood and the arm can be pivoted through 360° so that
almost any position can be set. It is important that the extraction hood is
always positioned properly in order to achieve adequate capture of the
welding fumes. The correct position is shown on the following image.
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