User Manual
Version 1.0k of 11.06.2019
Original manual
PONTIG 202 AC/DC MOST
-6-
ATTENTION:
Device must be disconnected from electrical network before performing
any maintenance or service work. After each repair, perform respective check
to ensure safe use.
Mandatory device checks
According to the Labour Code provisions: „All responsibility for the safe use of machinery and
equipment shall be borne by the owner.” This results in the obligation to perform periodic and
post-repair checks and inspections of equipment.
Periodic tests are carried out at least once a year (legal basis EN ISO 17662 clause 4.2), and
post-repair tests after each repair that restored welding functionality (legal basis: EN 60974-4
clause 4.6).
All above services are performed by the technical support of
RYWAL-RHC
.
3. Technical description
The
PONTIG 202 AC/DC
is an inverter welding rectifier for TIG welding in an argon shield
(arc ignition by HF ionizer) or for MMA with coated electrode (Stick). The device has excellent
welding properties and has a wide application range. It may be used for welding:
a/ MMA electrode welding - in direct current (DC)
Recommended electrodes from 1.6 to 3.25 mm in diameter. Electrodes with a rutile or alkaline
coating (idling voltage DC Uₒ = 60V), for steel or stainless steel,
b/ TIG DC welding method
Ignition of the arc by the HF ionizer, gas opened automatically by the electrovalve in the device.
For welding stainless steel or ordinary steel, recommended tungsten electrode diameter 1.6 or
2.4 mm You can weld in a continuous or pulsed current.
c/ TIG AC method
Ignition of the arc by the HF ionizer, gas opened automatically by the electrovalve in the device.
Welding of aluminium or its alloys, recommended diameter of tungsten electrode 1,6 or
2.4 mm Available functions of AC balance, negative / positive AC and
pulsed voltage regulation.
The device is protected against overheating by a thermal sensor. It is made
in accordance with the IEC 60974-1 standard, „Arc welding equipment. Part 1: Welding power
sources”.
4. Installation and use
- The user is responsible for connecting the device in accordance with the manufacturer
instructions. In the event of electromagnetic interference, the user should remove the cause
after prior consultation with the manufacturer.
- Before using the equipment, the welder should estimate the possible impact of disturbances
on the environment, in particular the presence of persons with pacemakers or hearing aids.
- Work with a power generator is acceptable, but it must meet certain requirements. It is
recommended to use a unit with a power of min. 8 kVA with asynchronous generator. If the
generator does not provide adequate power, this results in lowering the arc parameters or
turning off the rectifier.