Dry Vacuuming - Kärcher NT 611 Eco M Operating Instructions Manual

English
IMPORTANT
The unit is designed for vacuuming
dry, non-inflammable, health
hazardous dust from machines and
devices; Dust Category "M" acc. to
EN 60 335-2-69: 1999 Annex AA.
"H2 suitable for the removal of wood
dust, well within Residual Dust
Category 2; levels of 0.2 mg/m³."
Warning:
♦ An adequate ventilation rate (L) is
required when the exhaust air is
pumped back into the room. In
order to keep within the prescribed
maximum levels, the volume of air
pumped back into the room must
not exceed 50% of the incoming
fresh air (room volume V x
R
ventilation rate L ). No special
W
-1
ventilation requires: L =1h
W
♦ This unit contains health
hazardous dust. Emptying and
maintenance work, including
removal of the dust collectors,
may only be carried out by skilled
personnel wearing suitable
protection!
♦ Do not operate the unit without its
entire filtration system.
NT 611 Eco M
OPERATING INSTRUCTIONS
The unit has two operating modes:
• Industrial vacuuming mode
(socket not in use)
• Dust removal (socket in use)
First, connect the vacuum hose.
Then, depending on the operating
mode, attach the suction nozzle or
connect the hose to the dust-
producing device.
Do not operate the vacuum cleaner
without the filter element, as this
would damage the vacuum motor.
The increased amount of expelled
fine dust would be a health hazard!
Horn
The horn (2) sounds when the
paper filter bag is full
Note:
♦ The horn (2) is activated if the
pressure decreases
♦ The scale (1) must therefore be
adjusted to the appropriate cross-
section of the vacuum hose.

Dry VACUUMING

Manual mode
♦ The NT 611 Eco M can be used to
remove all types of dust up to Dust
Category "M".
♦ The NT 611 Eco M model is
designed for industrial vacuuming
purposes and can also be used as
portable devices for the removal of
dry, non-inflammable dust of MAK
values.
♦ The unit is fitted with a gauge to
indicate variations in the operating
pressure and includes a cleaning
function. This ensures that during
vacuuming the air speed inside
the vacuum hose never falls below
20 m/s .
♦ The flat pleated filter and the
paper filter bag must never be
removed when vacuuming.
Fitting the paper filter bag
Unlock and remove the suction
head
Attach the paper filter bag
Replace the suction head and lock
it in place
Insert the power plug
Switch on the unit and start using
it
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