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•
Before starting to weld make sure that the filter and the internal and external transparent protections are correctly positioned. Table 1 gives the
recommended "shade" numbers for using an electric arc welding machine to carry out common jobs and the different welding current intensity levels.
Make sure that the current intensity and welding procedure are suitable for the "shade 9-13" luminous protection level of the filter. Before using, carry
out a test with an arc strike.
•
When in the "GRIND" mode, the helmet can be used for grinding process (TW350S, TW380S).
TROUBLESHOOTING
Some common problems listed below, together with their possible solutions, can arise when using the helmet:
•
The filter does not darken or is unstable when switching from light to dark and viceversa. Possible solution.
-
The external transparent protection of the filter is dirty or damaged (change the external transparent protection).
-
The sensors are dirty (clean the sensor surface).
-
The level of the welding current level is too low for the "shade 9-13" protection level of this helmet (replace the helmet with another one having a
suitable filter).
•
Slow switching.
-
The operating temperature is too low (do not use at temperatures of below -5°C (+23°F).
•
Poor visibility.
-
The external or/and internal protection of the filter is/are dirty or damaged (clean the dirty components and replace the damaged ones).
-
Not enough light in the surrounding area (add more light to the surrounding area).
-
The welding current intensity is too low for the "shade 9-13" level of this helmet (replace the helmet with another one fitted with a suitable filter).
ATTENTION!
If the described malfunctions cannot be solved, stop using the helmet immediately and contact the nearest distributor.
CLEANING AND DISINFECTING
•
Only use soap and water or products that do not contain solvents to clean and disinfect the helmet. Using chemical solvents ruins the aesthetics of the
helmet and can dramatically reduce its integrity.
•
Taking good general care of the helmet reduces its obsolescence to a minimum, both from a use and a helmet component point of view.
•
Regularly clean the filter surface with a soft cloth and a non-aggressive cleaning solution, for example one for cleaning glass (do not pour the product
directly onto the filter).
•
Get into the habit of making sure that the solar cells and the sensors have not darkened or are not covered in dirt. If they have or if they are, clean them
with a soft paper tissue, if necessary slightly dampened with a preparation for cleaning glass (do not pour the product directly onto the filter).
ASSEMBLY
Assemble as shown in the drawing (Fig. A).
INFORMATION ON THE MARKING
The marking in the inner lower front section of the TWLX helmet is made up of a series of symbols with the following meanings:
Manufacturer's symbol: TELWIN – ITALY
Numerical standard of legislation referenced when requesting certification
Mechanical strength, low energy impact
CE marking
The marking given on the upper front section of the models TW350S, TW380S filter is made up of a series of symbols with the following meaning:
Light shade number
Lightest dark scale number
Darkest scale number
Identification code
Optic class
Light diffusion class
Light transmission factor variation class
Light transmission factor angular dependence
Standard number that was referred for requesting certification
CE marking
The marking given in the upper-front section of the model TW350F filter is made up of a series of symbols with the following meaning:
Light shade number
Dark scale number
Identification code
Optic class
Light diffusion class
Light transmission factor variation class
Light transmission factor angular dependence
Standard number that was referred to for requesting certification
CE marking
The certification procedure for the TWLX helmet required by annex V of the Regulation (EU) 2016/425 was carried out by DIN CERTO Gesellschaft für
Konformitätsbewertung mbH, Alboinstraße 56 D-12103 Berlin, being a notified body of the European Commission (identification code 0196).
The certification procedure for the TW350S, TW350F, TW380S filter required by annex V of the Regulation (EU) 2016/425 was carried out by by DIN
CERTO Gesellschaft für Konformitätsbewertung mbH, Alboinstraße 56 D-12103 Berlin, being a notified body of the European Commission (identification
code 0196).
TAB. 1
Welding process
and related technics
Coated electrodes
MAG
TIG
MIG on heavy metals (*)
MIG on light alloys
Air-arc cutting
Plasma-jet cutting
Microplasma arc welding
(*) The term "Heavy metals" refers to steel and its alloys, copper and its alloys.
Numbers of shades and uses recommended for arc welding
1.5
6
10
15
30
40
8
8
8
4
5
6
1.5
6
10
15
30
40
Amper Current
60
70 100 125 150 175 200 225 250 300 350 400 450 500 600
9
10
9
10
9
10
11
9
10
10
10
9
10
11
7
8
9
10
60
70 100 125 150 175 200 225 250 300 350 400 450 500 600
- 2 -
TW EN 175 F CE
4 / 9 - 13 TW 1 / 1 / 1 / 2 / 379 CE
3 / 11 TW 1 / 1 / 1 / 2 / 379 CE
11
12
11
12
12
13
11
12
11
12
13
11
12
13
12
13
11
12
13
14
13
14
13
14
14
14
15
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