6
explosion-proof extraction arms
ERGO
-
L/Z-
{
2
;
3
;
4
}
/Ex
10.01.2019
The shut-off damper (installed in the lower arm) serves for adjustment of the intake air volume,
depending on the needs. The flow velocity ought to be sufficiently high, so that the dust parti-
cles would not build up inside the extraction arm. The velocity ought to be specified according
to the technological process and the sort of the dust.
To protect the device from atmosphere ignition (caused by electrostatic discharge) are introdu-
ced cooper cables, to discharge / dissipate the electrostatic loads from all parts of the device.
The cable at the swivel (see Photo. 1 page 11) ought to be connected with the proper groun-
ding installation of the appliance.
6. Assembly and Start-up
Extraction arms are delivered in cardboard packages in a completely assembled state.
Having
installed the ERGO extraction arm, check the continuity of the equilibrating cables and
measure the resistance
(
it should not exceed 1
Ω
). It is recommended to keep the electrical
measuring results in files.
ERGO/Ex extraction arms have to be installed on wall brackets type
WB-ERGO-L/G
, (delivery
on separate order).
Diameters and spacing between the holes (for mounting bolts) are identical in the brackets and
in the swivels.
For the ERGO-L/Z the dimensions are given in the drawing below. The arms have to be moun-
ted by means of
6 bolts M6x40
– stainless steel
.
The construction of the
WB-ERGO-L/G
wall brackets (manufactu-
red by KLIMAWENT S.A.) additionally provides installing the ex-
traction fans.
Wall brackets can be mounted on the wall (or on another construc-
tion) through stainless steel bolts M10.
CAUTION
:
Installing of the ERGO-L/Z-(2;3;4)/Ex and ERGO-L/Z-(2;3;4)-R/Ex
extraction arms ought to be carried out according to the being in
force regulations of building construction and in a way providing
the continuity of electrical grounding connections.
−
Prior to beginning of the work, make sure whether the
extraction system is functioning pro-
perly
and the
grounding cable is connected with the efficient grounding installation
of
the building
.
−
Set the hood into suitable position approx. 20 cm from the processed element. Simultaneously
the hood should be able to capture efficiently the fume and dust and not to constitute obstacle
barrier for User. Adjustment of the position of the ERGO arm and the hood can be carried out
by the metal elements of the lower joint.
−
By means of a shut-off damper lever adjust the intake air volume to eliminate the dust / fume
most efficiently. The air velocity ought to be sufficiently high to avoid accumulating the dust
particles inside the arm segments. Velocity has to be adjusted to the needs of the technolo-
gical process and the sort of the dust sort.
During the work, the position of the hood and the damper lever can be changed many times, so
User can adjust them best to the current needs. After the completed work, the extraction arm can
be left in the ultimate position (operational state), or if it causes obstacle, set the arm into home
position. Finally, stop the extraction fan, if the device works with a ventilation system, close the
shut-off damper.
