Introduction; Standard Accessories; Technical Features; Reference Symbols - Tecno-gaz 7911 Manuel D'instruction

INTRODUCTION

CAREFULLY READ THIS MANUAL BEFORE INSTALLING
AND OPERATING THE WELDER.
The purpose of this instruction manual and of the enclosed docu-
ments is to transfer the necessary information for using the product
in a proper and safe way. It includes pieces of information relevant
to safety, installation, use, maintenance and disposal of the product.
This manual is addressed to the factory responsible in charge who
must release it to the personnel in charge of the welder installation,
use and maintenance. He/she must check that the information
given in this manual and in the enclosed documents have been
read and understood before operating the machine. The manual
must be stored in a well-known place, easy to reach, and must be
looked up each time even little doubts should arise.
The welders marked with suffix P are equipped with the pulse
functioning mode, which can be excluded anyway. The pulse
stands for the power supply at regular intervals. It is possible to
carry 13 pulses out maximum (5 complete cycles) at an interval
of 2 pause cycles. The pulses duration is adjustable through the
knob 66 (Picture 3).
These welders must be installed in industrial environments for
professional use only and are classified as class A resistance
welding equipment. This product is foreseen for being used neither
in domestic environment nor on low voltage public supply mains
supplying domestic buildings. This may cause radiofrequency
interferences.
All modifications, even slight ones, are forbidden because they
could compromise the machine's safety and they should invalidate
the welder EC certification.
The welder has been designed for resistance welding of both
ferrous and non ferrous materials (stainless steel, brass). The
welder must not be used for other applications.
TECNA S.p.A is not responsible for any damage to both people,
animals, things and to the welder itself caused by either a wrong
use or the lack or the superficial observance of the safety warnings
stated on this manual, nor it is responsible for damages coming
from even slight tampering or from the use of not-suitable spare
parts, or of spare parts other than the original ones.
Only for EU countries:
In accordance with European Directive 2002/96/EC for waste
electrical and electronic equipment (RAEE), the presen-
ce of this symbol indicates that the product shall not be
disposed of as urban waste. A separate collection must
be arranged for.
It is the user's responsibility to dispose of this product correctly.
They should contact their local authority or retailer.
The unlawful disposal of these wastes is punished with sanctions.
The correct disposal helps to optimize the recovery, the recycling
and the reclaim of any materials and also reduces potential nega-
tive consequences for the environment and human health.

STANDARD ACCESSORIES

The welder is supplied equipped with:
N° 1 Allen keys set, 5-4-3-2 mm.
N° 1 additional handle (only for items 7911-7915)
N° 1 electrode sharpener Ø 12 (only items 7911)
N° 1 compressed air group complete with cutting device.
N° 1 air supply hose Ø 6, length 4 m supplied without plug.
N° 1 pair of arms item 7401 L=125 mm (only items 7911).
N° 1 instruction manual.
"РУТЕКТОР" - сертифицированный дистрибьютор TECNA S.p.A. на территории РФ. rutector.ru info@rutector.ru 8 800 100 00 69
Art. / Item 7911-7913-7915

TECHNICAL FEATURES

* Different voltages and frequency available on request

REFERENCE SYMBOLS

COLD The COLD parameter is used in the pulse operating
mode and indicates the time elapsing between one welding
pulse and the next one.
IMPULSE NUMBERThe IMPULSE NUMBER parameter
indicates the number of impulses used to carry out the
welding process. When this parameter is set to 0, the pulse
operation is disabled. The length of each impulse corresponds to
the time set in the WELD TIME or WELD TIME 2 parameter. When
working, the relevant led shows that this function is activated.
WELD TIME The WELD TIME parameter indicates the
current flow duration. It will be carried out with the power
value indicated in parameter CURRENT. When the pulse
operation is on, this parameter signals the duration of each pulse.
CURRENTThe value expressed in CURRENT indicates the
welding operating power.
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