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NAVIGATOR E   NAVIGATOR H   NAVIGATOR HP   NAVIGATOR HP AC/DC




                                                                STOP
Navigator E
Navigator H
Navigator HP
Navigator AC/DC
Error indicators
Overheating
The indicator is yellow if welding has been
interrupted due to too high temperature in the
machine. The machine will be reconnected
automatically after a short cooling period.


Voltage errors on the mains
The indicator is red if the mains voltage is
too high or too low. The indicator will remain
on for 5 seconds after rectifying the error to
ensure that also brief errors are registered by
the user.
Welding current
Setting of welding current
When activating this button, the welding
current is set via the control knob, unless
remote control is chosen. When you are not
welding, the set current is shown in the display.
During welding, actual welding is shown in the
display.
In pulse welding, the HP version will
automatically display an average value of the
welding current, when shifts between welding
current and base current become faster than it
is possible to perceive.
Welding voltage
Welding voltage
For safety reasons the indicator is on
when there is voltage on the electrode
or the TIG torch.
Parameter units
Units
The unit for the parameter shown in the
display is indicated with a LED (light-
emitting-diode)
• M = 1/100 seconds
• s = seconds
• Hz = frequency in Hertz
• % = percentage of e.g. welding current
Choice of welding process
      Alternative processes:
      MMA welding or TIG welding



    MMA welding


    TIG welding
   Torch trigger
Two-stroke
Welding begins and ends when the torch
trigger is activated and deactivated
respectively. The machine can be reactivated
during slope-down and gas post-flow.
Four-stroke
Welding begins when the torch trigger is
activated and deactivated. The torch trigger
must be reactivated in order to finish welding,
after which slope-down will begin.


Spot welding
Welding begins when the torch trigger is
activated. Welding time is determined by the
time set as spot welding time.
Torch trigger H
Two-stroke
Welding begins and ends when the torch
trigger is activated and deactivated
respectively. The machine can be reactivated
during slope-down and gas post-flow.

Four-stroke
Welding begins when the torch trigger is
activated and deactivated. The torch trigger
must be reactivated in order to finish welding,
after which slope-down will begin.
Setting of current H & HP
    Alternatives for setting the welding current:



    Internal adjustment
    The control knob is used for setting the welding current.

    External adjustment
    Current and parameters are set via remote control.

    Dialog adjustment
    Current is set by means of the control knob on the Dialog
    TIG torch. Maximum welding current is set by the control
    knob on the control panel.
Setting of current E
  Alternatives for setting the welding current:




  Internal adjustment
  The control knob is used for setting the welding current.

  External adjustment
  Current and parameters are set via remote control.
    Ignition method
In TIG welding you can choose between two different
ignition methods.

HF ignition
In this case of contact free ignition the Tungsten electrode
does not touch the workpiece, but ignites by means of a high
frequency spark (HF), when the torch trigger is activated.

LIFTIG® ignition
The Tungsten electrode must touch the workpiece in order
to establish the arc. The torch trigger is activated and the
Tungsten electrode is lifted from the workpiece. The arc is
established.
                     Pilot arc
       Pilot arc
       The Pilot arc is a faintly luminous arc used for luminating the
       workpiece, whereby it becomes easier to find the starting
To
       point for the actual welding.

       The Pilot arc is started by an introductory short activation of
       the torch trigger, less than 0.3 seconds. If you activate
From   longer (more than 0.3 secs.), the machine will automatically
       shift to ordinary welding.
       From the Pilot arc you shift to the actual welding by
       activating the torch trigger in case of two-stroke welding or
       by activating longer in case of four-stroke welding and spot
       welding. Then welding will proceed in a normal way.
Setting of welding job
  16 programs
  This function makes it possible to save frequently
  used settings in the machine. In case of several users
  of the machine, this function is an advantage.
  While pressing the button, the display will show a "P"
  followed by a digit: 1, 2 etc. Each digit is a complete
  setting of all parameters of the machine. Programs are
  set by the control knob.
  With this feature it is possible to store a setting for
  each of the welding jobs that the machine is going to
  be used for.
        Arc-power
Arc-power for MMA welding
Used to stabilize the arc during MMA welding. Arc-
power briefly increases the welding current in case
of unintended short circuits to the workpiece.
Arc-power can be set between 0 and 150% of the
set welding current.
          Hot start
Hot start
An auxiliary function for unproblematic ignition
even with types of electrodes that are difficult to
ignite or weld.
When using the hot start function, additional
current is added to the electrode at the moment of
starting. This facilitates ignition and minimizes the
risk of welding errors.
The hot start value can be set from 0 to 100 % of
the set welding current.
 Spot welding time
Spot welding time
The set time from the end of slope-up to the start
of slope-down.
Spot welding time is exclusively the time in which
you weld with the set current. Spot time is the time
in which there is an arc after a press on the button,
exclusive of slope-up time and slope-down time.
Often used to penetrate through two layers of
materials or to homogenize tack weldings.
Choice of pulse or not pulse
     • Pulse welding is chosen.




     • Ordinary welding without pulse is
       chosen. Consequently pulse
       parameters cannot be chosen.
    Gas pre-flow
Gas pre-flow time
Gas pre-flow is the period of time in which
gas flows until establishment of HF-ignition,
or the period of time from activating the torch
trigger to lifting it away from the workpiece,
when LIFTIG® is used.
Used to facilitate ignition, to ”flow” the hose
and to protect the starting point when starting
the arc.
Time can be set between 0.3 and 10
seconds.
        Start Amp
                           If reading of the current is
                           chosen (by activating the A-
                           button), LED’s will show the
                           actual phase of the welding.




Start amp
The value is set as a percentage of the
welding current and varies between 0 and
100% of the set welding current (mininum
value 5 A).
      Start Amp H
                          If reading of the current is
                          chosen (by activating the A-
                          button), LED’s will show the
                          actual phase of the welding.




Start Amp
The value is set as a percentage of the
welding current and varies between 0 and
100% of the set welding current (minimum
value 5 A).
          Slope-up
                            If reading of the current is
                            chosen (by activating the A-
                            button), LED’s will show the
                            actual phase of the welding.




Slope-up time
When the arc is started, the welding process
will go into the slope-up phase in which the
welding current is increased from the start amp
value to the requested welding current. The
duration of this phase is called the slope-up
time. The time can be set between 0 and 10
seconds.
     Slope-down
                           If reading of the current is
                           chosen (by activating the A-
                           button), LED’s will show the
                           actual phase of the welding.




Slope-down time
When welding is interrupted with the torch
trigger, the machine will go into the slope-down
phase. In this phase the current is lowered
from the set welding current to the stop Amp.
The duration of this phase is called the slope-
down time. The time can be set between 0 and
10 seconds.
    Slope-down H
                            If reading of the current is
                            chosen (by activating the A-
                            button), LED’s will show the
                            actual phase of the welding.




Slope-down time
When welding is interrupted with the torch
trigger, the machine will go into the slope-down
phase. In this phase the current is lowered
from the set welding current to the stop Amp.
The duration of this phase is called the slope-
down time. The time can be set between 0 and
10 seconds.
        Stop Amp
                           If reading of the current is
                           chosen (by activating the A-
                           button), LED’s will show the
                           actual phase of the welding.




Stop Amp
When the amperage has declined to the set
stop Amp, the machine will go into the gas
post-flow phase. The stop Amp is set as a
percentage between 0 and 100% of the set
welding current (minimum 5 A).
   Gas post-flow
Gas post-flow
Is the time from stop of the arc to interruption
of the gas supply.
Used to protect weld pool and Tungsten
electrode and to cool the torch.
Time can be set between 3 and 20 seconds.
      Idling current
                             If reading of the current is
                             chosen (by activating the A-
                             button), LED’s will show the
                             actual phase of the welding.




Idling current
This function can be activated and deactivated
during welding by shortly activating the torch
trigger.
Idling current is a percentage value of the set
welding current and varies between 0 and
100% (minimum 5 A).
            Pulse parameters
                                       If pulse welding is chosen,
                                       pulse parameters can be
                                       chosen and changed during
                                       welding.


                                                 Pause time
                                                 Indicates the time
                            Base current
                                                 welded on base
Pulse time                  To be set as a
                                                 current. Time can be
Indicates the time of       percentage value
                                                 set between 0.01
welding with pulse          between 1 and
                                                 and 10 seconds.
current. Pulse current is   99% of the set
identical with the set      welding current
welding current. Time       (not under 5 A).
can be set between 0.01
and 10 seconds.
 Type of current
Choice of voltage
Generally speaking, an AC/DC welding machine
(a double current machine) welds all materials.
(Patented D.O.C.™ system).
AC welding is chosen for welding in all materials
containing aluminium. The principle is that the
positive current removes the oxide membrane on
the surface, and the negative current gives
penetration into the material.
DC welding is used for all other materials, such
as stainless, copper and ordinary steel.
 AC-frequency
Frequency control
One of the major advantages of the inverter
is the infinitely variable adjustment of the +/-
frequency. Increasing frequency will result in
a narrower weld pool, increasing penetration
into the material and stabilization of the arc.
The setting of AC frequency ranges from 1 to
300 Hz in TIG welding and from 1 to 100 Hz
in MMA-welding.



Click here for details about AC frequency.
Notes to the AC frequency
•When TIG welding, the AC frequency and welding current cannot be
adjusted to maximum simultaneously. If the limitation is reached when
adjusting the AC frequency, the lamp for A in [Units for parameter] will flash,
and the AC frequency is limited by the machine.
•If the frequency limit during TIG welding is exceeded when adjusting the
welding current, the AC frequency will be reduced automatically (the lamp for
AC frequency will flash for 5 seconds).
•If in TIG welding a pulse function for AC welding is used, the AC frequency
can be limited compared to the pulse times, because it has been determined
that the pulse frequency must always be 5 times as large as the AC
frequency. If the AC frequency is limited due to pulse times, the lamps for
pulse times will flash for 5 seconds when adjusting the limit of the AC
frequency.
•Adjustment of the pulse setting: If in TIG welding a pulse function for AC
welding is used, automatic adjustment of the pulse setting may occur through
adjustment of the current. If the lamps for pulse times flash for 5 seconds, it
may be caused by an adjustment of the pulse setting. Pulse time and base
time are hereby changed automatically to 0.03 seconds.
Electrode preheating
 TIG electrode preheating
 When starting the TIG-AC arc, the Tungsten
 electrode is preheated with direct current with
 positive polarity.
 Preheating of the electrode facilitates the start
 of the arc due to the thermal heating. At the
 same time preheating will contribute to
 increased ionization of the spark gap.
 Preheating is adjusted in accordance with the
 diameter and profile of the electrode.
 The preheating time is adjustable in accordance
 with all types of electrodes and welding
 conditions.
AC-t-balance (based on time)
    +/- time balance
    With this function it is possible to set the
    cleaning effect when TIG welding with AC
    current.
    The function is a time-based balance between
    the positive and the negative half period. It is
    possible to adjust between 1 and 100%. The
    percentage indicates the share of the negative
    half period of a full period.
    The adjusted balance will provide a suitable
    cleaning zone around the weld pool.
AC-I-balance (based on amperage)
  Current balance
  The purpose of this function is to regulate the
  positive share of the current compared to the
  negative share.
  A reduction of the positive cleaning current will e.g.
  result in considerably sharper Tungsten electrodes
  and make welding in extremely thin materials
  possible. In addition, the lifetime of the Tungsten
  electrode is increased considerably.




                 100%   150%   50%
           Contents
        Simple and illustrative

•   Applications
•   Configurations
•   Marketing material
•   Technical data
•   USP - Arguments
•   Why choose Migatronic?
•   Service and maintenance
             Applications
 Economical , audible and visible quality
• Navigator 2500 and 3000 have been specially
         constructed for the following:
– All AC versions have been constructed for light-alloy metals
  containing aluminium, magnesium and allied metals as well
  as alloys. Used in the transport sector, building industry,
  containers construction etc.
– All DC weldable TIG and MMA jobs, such as building of
  rustproof filling stations, boiler production, offshore
  constructions or food sector.
– The strength of all Navigator machines makes them
  applicable for MMA welding with electrodes up to 5 mm in
  diameter.
Navigator 2500 and 3000 can be combined with different robot
solutions or used in automated set-ups.
               Configurations
                 Simple and serviceable
• Supplied with or without integrated cooling of TIG welding
  cables
• Supplied in four versions with or without pulse, programming
  options etc.
• TIG welding cables are supplied as standard in 4 or 8 m length
• Dialog torch with regulation from the handle is standard on all
  types of Navigator
• Optional: trolley for Navigator
• Self detecting auto transformer from 220 to 500 V
• MMA welding cable is included in the configuration as standard
• Remote controls for current and trim parameters
• Offshore versions and other environmentally adapted solutions
  are available
            Marketing material
             electronic or printed on paper
Migatronic offers a variety of marketing materials
•   CD-ROM and disc information
•   Homepage www.migatronic.dk
•   Complete machine catalogue with full range of products
•   Brochures and ”Welding Bible” in several languages
•   Standard configurations or choice via configurator
•   Training compendiums in several languages
•   Support via Migatronic customer centre
•   Manpower support for special events
•   Sales training
•   Posters
                 Technical data
                  Comparable and usable
•   Type of machine:       2500 AC/DC           3000 DC + AC/DC
•   Current range          5 - 250 A            5 - 300 A
•   Mains voltage          3 x 400 V (+/-15%)   3 x 400 V (+/-15%)
•   Duty cycle 25%         250 A                300 A
•   Duty cycle 60%         220 A                240 A
•   Duty cycle 100%        170 A                190 A
•   Open circuit volt.Uo   80 V                 80 V
•   IP class               IP 23                IP 23
•   Weight kg              31 kg (air)          38 kg (water)
                USP - Arguments
                       Facts and arguments
•   Navigator 2500 and 3000 are available in four versions:
     – AC HP = Double current versions with all facilities
     – E model = MMA (DC) version. TIG with LIFTIG® ignition as an additional
        choice
     – H model = HF and LIFTIG® ignition and ordinary TIG (DC) function
     – HP model = With HF and LIFTIG® ignition and all pulse functions
     – Newly developed AC module with rapid change of frequency gives
        optimum arc control combined with pleasant AC welding sound
     – Patented D.O.C.™ Dynamic Oxide Control system
     – New lightweight cabinet in corrosion-proof aluminium
     – V - (H-HP-AC) = Navigator can be combined with liquid cooling
     – HP AC versions can store up to 20 user defined programs
     – Dialog torch is standard for all Navigator models
     – Low current consumption (16A fuse), minor generation of heat and long life
     – Newly developed control panel based on icons
     Why choose Migatronic?
                       Tangible quality
   One of Europe’s leading manufacturers within the inverter technology
   Subsidiaries and importers throughout Europe
   ISO 9001 certified with more than 450 employees in Europe
   Original sales and service network with support throughout Europe
   More than 30 years experience of manufacturing welding machines
   Knowledge of arc welding processes
   Sales training of dealers and large end users
   Robust and reliable welding machines for industrial use
   Large machine flexibility and high resale value of used equipment
   Customers including watchmakers, automobile sector, heavy offshore
    and shipbuilding industry are included in our reference list
    Service and maintenance
                         Fit for fight
• Different levels of service subscription and service agreements
• Full service guarantee on the welding machine after repair
• Systematic maintenance at fixed intervals
• Application training for customers and dealers
• Own service school with training in specific machines
• 95% on site repair by our service vehicles
• Specialized application solutions adapted to environment and
  customers
• Always original spares and a large range of exchange products
• Repair of hoses and cables as per agreement

				
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