Caution; Description; Commissioning - Weller WFE 2S Manual De Uso

Thank you for placing your trust in our company by purcha-
sing the Weller WFE 2S volume fume extraction unit.
Production was based on stringent quality requirements
which guarantee the perfect operation of the device.

1. Caution!

Please read these Operating Instructions and the attached
safety information carefully prior to initial operation. Failure
to observe the safety regulations results in a risk to life and
limb.
The manufacturer shall not be liable for damage resulting
from misuse of the machine or unauthorised alterations.
The Weller WFE 2S volume fume extraction system extrac-
tion unit corresponds to the EC Declaration of Conformity in
accordance with the basic safety requirements of Directives
89/336/EEC and 73/23EEC.

2. Description

The Weller WFE 2S is a volume fume extraction system ide-
ally suited to a continuous industrial operation environment.
(it is not suitable for use as a tip extraction system.) A power-
ful, maintenance free turbine combined with a digital elec-
tronic speed control system ensures ease of use and low
maintenance costs. The digital electronic speed control
system provides air movement which is continuously varia-
ble from 30 m 3 /h to 230 m 3 /h. Two DN 40 intake flanges are
fitted to the top of the unit for connection to pipe work
systems. The WFE 2S is fitted with a three stage filter
system, pre filter (F5), sub micron filter (H13) and wide band
gas filter, specifically designed to deal with solder fumes. In
its delivered state this filter system ensures a degree of
separation of 99.95 % i.a.w to EN 1822 for a particle size of
0.12 µm. The differential pressure inside the unit is measu-
red constantly and a red LED display is illuminated when the
unit senses that a filter change is required. Under normal
running conditions a green light is displayed. The system can
be controlled manually at the unit or remotely via an RS 232
interface. An hours run counter and a speed limiting control
are available as optional extras.
Technical data
Dimensions L x W x H:
Weight:
Voltage:
Electrical power rating:
Maximum vacuum:
Maximum quantity supplied:
Pre filter: Stage 1
Combined filter: Stage 2; 3

3. Commissioning

Installation
Fit one or both DN 40 connection flanges (3) to the filter hou-
sing with 3 securing screws. If only one connecting flange is
to be used then the other vacuum connection must remain
blanked. The connecting flanges can be connected either
directly to a DN 40 pipe system or via a flexible pipe to the
fume collection device. Ensure that the exhaust air (1) from
the WFE 2S is not obstructed.
Electrical connection
The supply voltage must be checked against the machine
name plate details prior to switch on. If correct then connect
the WFE 2S to the mains and switch on at the machine main
switch (5). A illuminated green LED (12) will indicate that the
machine is running. The desired speed can then be set by
adjustment of the speed setting potentiometer.
Filter checks
The filter status display warns when a filter check is requi-
red. When the red LED (11) illuminates, switch off the machi-
ne and lift off the top housing (2). Remove the pre filter mat
(13) and replace with a new one. Reassemble the machine
and switch on. If the red LED (11) goes out then that is all
that is required. If the red LED remains on, then repeat the
procedure, this time replacing the combined filter (14).
Follow the instructions in the maintenance info on page 19.
Reassemble the machine and switch back on.
Note: The pre filter mat (13) will need to be replaced more
frequently than the combined filter.
Remote control
The full range of WFE 2S functions can be remotely control-
led from a PC by way of the integral RS232 interface (10). In
addition to the manual functions available from the machine,
a speed limiting function can be selected in the remote mode
so that if both extraction ports (3) are closed the machine
speed reduces to 20 % of maximum. When the ports are reo-
pened, the machine will reset to its default speed setting.
An hours run meter is also available in the remote setting.
320 mm x 320 mm x 395 mm
19 Kg
230V/50Hz
275 VA
2,700 Pa
230 m 3 /h
pre filter mat class F5
Combined H13 high efficiency submicron filter
(99.95 % particle separation upto 0.12 µm) and wide band gas
filter (50 % activated carbon, 50 % Puratex)
English
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