Manual Defort DWI200S (page 7 of 88) (All languages)

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7. Wear suitable clothing, do not wear synthetic

clothes.

8. Do not look into the arc with unprotected eyes, use

only a welding safety shield with the proper safety

glass in compliance with DIN standards. In addition

to light and heat, which may cause dazzling and

burns, the arc also gives off UV radiation. Without

proper protection, this invisible ultraviolet radiation

causes very painful conjunctivitis, which will only

be noticeable several hours later. In addition, UV

radiation will cause sunburn-type symptoms on un-

protected parts of the body.

9. Personnel or assistants in the vicinity of the arc

must also be notiﬁ ed of the dangers and provided

with the required protection; if necessary install

safety walls.

10. Ensure adequate ventilation for welding, particular-

ly in small rooms since the process causes smoke

and harmful gases.

11. Do not carry out any welding work on tanks that

have been used to store gases, fuels, mineral oil or

the like, even if they have been empty for a lengthy

period of time, since any residue will result in a dan-

ger of explosion.

12. Special regulations apply in areas where there is a

potential risk of ﬁ re and/or explosion.

13. Welds that are exposed to large stresses and must

comply with safety requirements may only be com-

pleted by specially trained and approved welders.

Examples of such welds include pressure vessels,

rails, trailer hitches, etc.

14. Only use a power source (with earthing contact) that

is protected with a slow-blow fuse, a slow-triggering

circuit breaker and a residual current device.

The fuses must comply with the relevant regulations

(VDE 0100). To comply with these regulations, only

fuses or circuit breakers suitable for the cross-

section of the cables may be used. The use of too

high a fuse may result in the cable burning and ﬁ re

damage to the building.

This appliance is not designed for commercial use.

CONSTRICTED AND WET AREAS

When working in constricted, wet or hot areas, use

insulating supports and intermediate layers as well as

slip-on gloves made of leather or other non-conductive

materials to insulate your body against the ﬂ oor, walls,

conductive parts of the machine and the like.

If you use small welding transformers for welding in

places with an increase electrical risk, for example in

constricted areas with conductive walls, (tanks, pipes,

etc.), in wet areas (which make work clothes wet) and

in hot areas (perspiration on work clothes), the output

voltage of the welding set when idling must not exceed

42 V (effective value). Therefore, the appliance may

not be used for these purposes because its output volt-

age is higher than this.

Safety clothing

1. While working, the welder must protect his entire

body from radiation and burns by wearing suitable

clothing and a face guard.

2. Slip-on gloves made of a suitable material (leather)

must be worn on both hands. They must be in per-

fect condition.

3. Suitable aprons must be worn to protect clothing from

sparks and burns. A safety suit and, if necessary,

head protection must be worn if required by the type

of work in question, e.g. overhead welding.

PROTECTION FROM RADIATION AND

BURNS

1. Provide information about the risk to eyes at the

working site in the form of a poster with the wording

«Caution - do not look at the ﬂ ames». Workplaces

are to be screened off wherever possible so that

personnel in the vicinity are protected. Unauthorized

persons are to be kept away from the welding work.

2. The walls in the immediate vicinity of stationary

workplaces should not have a light color or a sheen.

Windows up to head height are to be protected

against radiation passing through them or reﬂ ecting

off them, for example by coating them with a suitable

paint.

4. SYMBOLS AND TECHNICAL DATA

Single-phase transformer

50 Hz Mains frequency

Mains voltage

max Rated maximum mains current

Fuse with rated value in A

Rated idling voltage

Welding current

Ø mm Electrode diameter

nc/nc

Number of welding electrodes

that can be melted.

a) from a cold state up to the trip

point of the temperature monitor

(nc) and

b) within the ﬁ rst hour from the

cold state (nc

)

nh/nh

Number of welding electrodes that

can be melted

a) in a hot state between the

temperature monitor switching

on and off (nh)

and

b) over a period of one hour in a

hot state from being switched on

again (nh

)

Symbol for falling characteristic curve

Symbol for manual arc welding with

sheathed rod electrodes

IP 21 Protection type

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Defort DWI200S Manual

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