7
ENGLISH
Introduction
Thank you for purchasing one of our
products. Before using the equipment
you should carefully read the instruc-
tions included in this manual. In order to
get the best performance from the sys-
tem and ensure that its parts last as long
as possible, you must strictly follow the
usage instructions and the maintenance
regulations included in this manual. In
the interest of customers, you are rec-
ommended to have maintenance and,
where necessary, repairs carried out by
the workshops of our service organisa-
tion, since they have suitable equipment
and specially trained personnel avail-
able. All our machinery and systems are
subject to continual development. We
must therefore reserve the right to mod-
ify their construction and properties.
Description
RAINBOW 170 HF
with analogue con-
trol represents the very latest evolution
in direct current weld generators with
INVERTER
technology. This powerful
100 KHz generator, based on the latest
generation IGBT, fitted with a planar
transformer, makes it possible to TIG
weld any metal except for aluminium
and its alloys.
RAINBOW 170 HF
, also excellent for
electrode welding, with its lightness and
compactness and first-rate welding
characteristics, is ideal for using for
maintenance, erection and light steel
structural works.
Main features are:
• Precise and efficient TIG arc striking
by high frequency
• High performance on thin metal
sheets
• Automatic compensation for mains
voltage 15% -20%
• Low energy consumption and high
efficiency
• Innovative and compact design
• Shock-proof plastic main structure
• Control panel protected against acci-
dental impact
• Robust handle integrated into the
chassis
• Sloping front control panel, easy to
read and adjust and highly visible from
any direction
• Reduced weight and dimensions,
easy-to-carry
Introduction
7
Description
7
Technical data
8
Usage limits
(ISO/IEC 60974-1)
8
Safety standards
8
Installation
9
Connection to the
electrical supply
9
Usage norms
10
Connection of the
welding cables
10
Maintenance
11
The pointing out of any difficulties
and their elimination
11
Adjustment of electronic
circuit board
47
Wiring diagram
48
Key to the electrical diagram
50
Colour key
51
Meaning of graphic
symbols on machine
52
Meaning of graphic
symboles on rating plate
53
Spare parts list
55-56
Ordering spare parts
58
Table 1
Model
RAINBOW 170 HF
TIG DC
MMA
Single phase input 50/60 Hz
V
230
230
Installation power
kVA
3,2
3,9
Fuse (delayed action)
A
16
16
Secondary idle voltage
V
88
88
Adjustment field
A
5 ÷ 170
5 ÷ 150
100%
A
95
95
Usable current (40° C)
60%
A
115
115
X%
A
170 (20%) 150 (25%)
EN 60974-1
Standards
EN 50199
Protection class
IP
23
Insulation class
H
Dimensions
mm
390-300-135
Weight
kg
7
UK
