Intended use
Overview of device types
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099-002032-EW501
15.10.2018
3
Intended use
WARNING
Hazards due to improper usage!
The machine has been constructed to the state of the art and any regulations and
standards applicable for use in industry and trade. It may only be used for the welding
procedures indicated at the rating plate. Hazards may arise for persons, animals and
material objects if the equipment is not used correctly. No liability is accepted for any
damages arising from improper usage!
• The equipment must only be used in line with its designated purpose and by trained or
expert personnel!
• Do not improperly modify or convert the equipment!
Arc welding machine for MMA DC welding with TIG DC welding with lift arc (touch starting) as secondary
process.
3.1
Overview of device types
3.1.1
Cellulose electrode types (cel)
CEL device types are equipped with special Arcforce characteristics.
These device types facilitate welding with cellulose electrode types which is safe for vertical-down
welding, especially in the lower output range.
3.2
Voltage reducing device (VRD)
The voltage reducing device is a requirement in some countries and in many internal company safety
guidelines for power sources.
A distinction is made between two versions:
• VRD (
V
oltage
R
eduction
D
evice) or
• SVRD (
S
low
V
oltage
R
eduction
D
evice)
Both switches meet the European standard (EN 60974-1:2005) and result in an increase in safety in
hazardous environments in particular (such as ship construction, pipe construction, mining).
VRD reduces the open circuit voltage to 12 V within 0.2 s and thus fulfils the Australian standard
(AS 1674.2-2003). SVRD reduces the open circuit voltage within 0.8 s to 12 V and thus fulfils the Russian
standard (
ГОСТ 12.2 007.8).
