Karcher NT 611 ECO M A - Manual (Page 7)

Operating Instructions NT 361 Eco M A / NT 611 Eco M A English
16
Important
The unit is designed to extract dry,
non-inflammable, health
hazardous dusts at machines and
apparatus; dust classification "M"
according to
EN 60 335-2-69: 1999 annex AA.
"H2 suitable for extracting wood
dust to a residual dust efficiency of
2; 0,2 mg/m³ reliably maintained."
Warning:
— An adequate ventilation rate (L)
is required when the exhaust
air is pumped back into the
area. To enable maintaining the
required limit values the
permissible returned volume
flow is a maximum of 50% of
the fresh air volume flow (room
volume V
R
x ventilation rate
L
W
). No special ventilation
required: L
W
=1h -1
— This device contains harmful
dust. Emptying and
maintenance operationss,
including disposal of the dust
collector, is permissible only by
skilled personnel wearing
appropriate safety clothing and
protection.
— Do not operate the device
without the entire filtration
system.
Operating instructions
The device has two operating
modes:
— Industrial vacuuming mode
(Socket not in use)
— Dust removal (Socket in use)
!
Connect suction hose and,
depending on operating
method, fit vacuuming nozzle
or connect it to the dust-
producing unit.
Warning!
Do not operate the vacuuming
device without the filter element,
otherwise the vacuum motor will
be damaged. This will present a
health risk due to the increased
amount of fine dust expelled!
Horn
— The horn (2) sounds when the
paper filter bag ist full
Note:
— The horn (2) is activated if the
pressure decreases
! The scale (1) must therefore
be adjusted to the
corresponding cross-sectional
size of the vacuum hose.
Dry suction
Manual mode
Danger!
All dusts up to the M dust
classification can be vacuumed
with the unit.
Danger!
— The unit is designed as a
mobile industrial vacuum
cleaner for vacuuming and
dust-removing operations to
remove dry, non-inflammable,
MAC-value dusts.
— The device is fitted with a
gauge to indicate any variations
in the operating pressure and
includes a cleaning function.
This ensures that the air speed
inside the vacuum hose never
falls to below 20 m/s during the
vacuuming process.
— The flat folded filter and the
paper filter bag must never be
removed during vacuuming.