V-TUF VacM, Руководство пользователя, Страница: 9 / 12

9 | P a g e
Once the vacuum has been activated, block the aspiration tube and check whether an
acoustic signal sounds. The acoustic signal is activated when the speed of the air within the
tube falls below 20m/sec. This must be calibrated.
In normal usage conditions, the acoustic signal turns on to signal a reduction in pressure / air
flow. Once this sounds the filter must be cleaned and the bag must be replaced. The
scientific health reason is that dangerous dust does not remain airborne once air velocity
drops below 20m/sec.
USE OF THE DEVICE
ATTENTION The aspiration of flammable dusts/substances is forbidden.
The sector’s reference standard, EN 60335-2-69/A1:2004, lists the dusts which present a risk of
explosion when brought into contact with ignition sources.
A filter bag must always be inserted into the container when the device is to be employed
for vacuuming dry substances with MaK values.
For innocuous dusts, a lower-performance paper filter bag is also available.
Filter bag reference table:
CODE DESCRIPTION VACUUM MODEL NOTES
VTVS7007PB Paper Filter Bag VAC M Innocuous dusts
VTVS7007 Polyester Filter Bag VAC M Dusts with MaK values
dusts
ATTENTION
The dust collection bag must not be filled past ¾ of their capacities. Check periodically
during use.
Do not vacuum liquids or particularly humid substances while the bag filters are installed.
END OF WORK ACTIVITIES
After hazardous dusts have been vacuumed, the user must open the vacuum.
Disconnect the device’s power supply by removing its electrical plug from the outlet.
Empty the container and clean the vacuum.
Store the vacuum in a safe place where it cannot be accessed by unauthorised personnel.
MAINTENANCE: FILTER REMOVAL
ATTENTION
Be careful to not stir up dusts when performing cleaning operations, filter checks or filter
replacements. Use a protective mask. Or a V-TUF filter cleaning box.