Nederman FE860, Руководство пользователя

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FE860
4 Using FE860
See Figure 5 .
NOTE!
Do not block exhaust (18).
4.1 Manual mode
• Set the main switch (7) to position ON (8).
The unit will now work continuously. A fixed green
light (13) indicates that the unit is in operation.
4.2 Automatic mode
1 Place the welding cable, or welding return cable in
the current sensor clamp (3).
2 Set the main switch (7) to the AUTO position (5).
The green light (13) will flash indicating that the
unit is in standby mode.
3 The unit will start when the welding arc is struck
and return to standby 10 seconds after the arc is
broken.
4.3 Adjusting the suction power
The suction power (setpoint) can be adjusted using
the knob (9). The unit will automatically adjust the
motor power to maintain the desired suction and air-
flow, even as the filter gets saturated.
Before setting the suction power, ensure the hose is
in the desired working position and that all connec-
tions are correctly fitted.
NOTE!
The scale of the knob (9) corresponds to a
pressure setpoint, not motor speed. There-
fore, the full motor speed can be reached at
any scale position, depending on the resistance
of the connected system and the saturation of
the filter.
When adjusting the knob (9), work clockwise to
minimize the risk of false alarms. Fast adjust-
ments could trigger an alarm. The alarm will be
reset after 3 seconds or if the unit is powered
off (and on) again.
Table 4.1 Suction settings
Hose length
[m]
Setpoint
Nozzle 2,5 N1
Nozzle 5,0 N2
Nozzle 15,0 N3
On-Torch 2,5 T1-T8
4.3.1 Using the unit with a Nozzle (N1-N3)
Adjust the knob (9) using the suction settings table
above to find the recommended setpoint, N1-N3
1
,
depending on the hose length. For hose lengths over
2,5 meters, it may be possible to adjust the knob (9)
slightly counterclockwise and still maintain an ad-
equate airflow, but with a reduced capturing distance.
4.3.2 Using the unit with a fume extraction
torch (T1-T8)
Each fume extraction torch requires a specific airflow,
as specified by the torch manufacturer, to ensure ad-
equate extraction. Too high extraction can comprom-
ise weld integrity.
1
Measure the flow at the nozzle according to the
instructions supplied by the torch manufacturer.
2 Adjust the knob (9) until the desired flow is
achieved to ensure the correct extraction of
fumes. For most torches, extraction will be correct
using settings T1 to T8. However, in certain cases,
N1-N3 may provide adequate extraction.
3 Repeat the process on a regular basis according to
the manufacturer’s instructions or when welding
conditions change.
Ensuring the correct flow is always the responsibility
of the user.
4.4 Status lights, Warnings and Alarms
See Figure 5 .
Green light (13), fixed - indicates that the unit is op-
erational, the motor is running and the status is OK.
The light turns off when an alarm is active.
Green light (13), flashing - indicates that the unit is
set to Auto mode but is on standby awaiting a run sig-
nal from the sensor clamp.
Orange Warning light (12), flashing every 5th
second - indicates that the filter is approximately
85% full (at the current setpoint).
Orange Alarm light (12), continuously flashing - in-
dicates that the unit is not maintaining the desired
pressure as set by the knob (9).
If the Alarm is activated, terminate welding opera-
tions immediately and take action to resolve the issue
by checking if any of the following conditions apply:
• the user has just changed the setpoint using the
knob (4) and the unit is still calibrating itself to reach
the desired pressure (when the setpoint is changed
the alarm may either be triggered or released).
• the connections are not fitted properly.
• the hose or nozzle is clogged or damaged.
• the filter is clogged, damaged or bypassed.
• the filter is too saturated to maintain the required
suction as set by the user and thereby requires
changing as soon as possible.
1 Other nozzles than TM80/200 or other hoses than 50 mm, may require other settings.
EN
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