Fronius TransPocket 3500, Operating Instructions Manual

Page: 46 / 80

44
Risks from mains
current and oper-
ating current
Fumes and hazardous gases
-
must not be breathed in
- must be extracted from the working area using appropriate methods.
Ensure an adequate supply of fresh air.
Otherwise, a protective mask with an air supply must be worn.
Close the shielding gas cylinder valve or main gas supply if no welding is tak-
ing place.
If there is any doubt about whether the extraction system is powerful enough,
then the measured toxic emission values should be compared with the permis-
sible limit values.
The following components are responsible, amongst other things, for the de-
gree of toxicity of welding fumes:
-
Metals used for the workpiece
- Electrodes
- Coatings
- Cleaners, degreasers, etc.
The relevant material safety data sheets and manufacturer's specifications for
the listed components should therefore be studied carefully.
Flammable vapours (e.g. solvent fumes) should be kept away from the arc's
radiation area.
An electric shock is life threatening and can be fatal.
Do not touch live parts either inside or outside the device.
All cables and leads must be secured, undamaged, insulated and adequately
dimensioned. Loose connections, scorched, damaged or inadequately dimen-
sioned cables and leads must be repaired/replaced immediately.
Only switch on the device when all output connections have been established
correctly.
Only operate the device on a mains supply with a PE conductor. If the device
is operated on a mains supply without a PE conductor, this will be deemed as
gross negligence. The manufacturer shall not be held liable for any damage
arising from such usage.
Have the mains and device supply checked regularly by a qualified electrician
to ensure that the PE conductor is functioning properly.
Switch off unused devices.
Before working on the device, switch it off and pull out the mains plug.
Attach a clearly legible and easy-to-understand warning sign to the device to
prevent anyone from plugging the mains plug back in and switching it on
again.
After opening the device:
-
discharge all live components
- ensure that all components in the device are de-energised.
If work on live parts is required, appoint a second person to switch off the main
switch at the right moment.