INSTRUCTIONS FOR:
INVERTERS
Thank you for purchasing a Sealey Welder. Manufactured to a high standard this product will, if used according to these instructions and properly maintained,
give you years of trouble free performance.
MW140.V2, MW140PLUS, MW150, MW170
IMPORTANT
:
BEFORE USING THIS PRODUCT, PLEASE READ THE INSTRUCTIONS CAREFULLY. MAKE CAREFUL NOTE OF SAFETY INSTRUCTIONS,
WARNINGS AND CAUTIONS. THIS PRODUCT SHOULD ONLY BE USED FOR ITS INTENDED PURPOSE. FAILURE TO DO SO MAY CAUSE DAMAGE
AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. RETAIN THESE INSTRUCTIONS FOR FUTURE USE.
1. SAFETY INSTRUCTIONS
1.1.
ELECTRICAL SAFETY
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WARNING!
It is the responsibility of the owner and the operator to read, understand and comply with the following:
You must check all electrical products, before use, to ensure that they are safe. You must inspect power cables, plugs, sockets and any other connectors for wear
or damage. You must ensure that the risk of electric shock is minimised by the installation of appropriate safety devices. A Residual Current Circuit Breaker (RCCB)
should be incorporated in the main distribution board. We also recommend that a Residual Current Device (RCD) is used. It is particularly important to use an RCD
with portable products that are plugged into a supply which is not protected by an RCCB. If in any doubt consult a qualified electrician. You may obtain a Residual
Current Device by contacting your Sealey dealer.
You must
also read and understand the following instructions concerning electrical safety.
1.1.1.
The
Electricity at Work Act 1989
requires that all portable electrical appliances, if used on business premises, are tested by a qualified electrician, using
a Portable Appliance Tester (PAT), at least once a year.
1.1.2.
The
Health & Safety at Work Act 1974
makes owners of electrical appliances responsible for the safe condition of those appliances and the safety of the
appliance operators.
If in any doubt about electrical safety, contact a qualified electrician.
1.1.3.
Ensure that the insulation on all cables and on the appliance is safe before connecting it to the power supply. See 1.1.1. and 1.1.2. and use a
Portable Appliance Tester.
1.1.4.
Ensure that cables are always protected against short circuit and overload.
1.1.5.
Regularly inspect power supply cables and plugs for wear or damage and check all connections to ensure
that none is loose.
1.1.6.
Important:
Ensure that the voltage marked on the appliance matches the power supply to be used and
that the plug is fitted with the correct fuse - see fuse rating at right.
1.1.7.
DO NOT
pull or carry the appliance by the power cable.
1.1.8.
DO NOT
pull the plug from the socket by the cable.
1.1.9.
DO NOT
use worn or damaged cables, plugs or connectors. Immediately have any faulty item repaired
or replaced by a qualified electrician. When a BS 1363/A UK 3 pin plug is damaged, cut the cable just
above the plug and
dispose of the plug safely.
Fit a new plug according to the following instructions (UK only).
a) Connect the GREEN/YELLOW earth wire to the earth terminal E.
b) Connect the BROWN live wire to the live terminal L.
c) Connect the BLUE neutral wire to the neutral terminal N.
d) After wiring, check that there are no bare wires, that all wires have been correctly connected,
that the cable outer insulation extends beyond the cable restraint and that the restraint is tight.
Double insulated products, which are always marked with this symbol , are fitted with live (brown) and
neutral (blue) wires only. To rewire, connect the wires as indicated above -
DO NOT
connect either wire
to the earth terminal.
1.1.10. Products which require more than 13 amps are supplied without a plug. In this case you must contact a qualified electrician to ensure that a suitably rated
supply is available. We recommend that you discuss the installation of an industrial round pin plug and socket with your electrician.
1.1.11. If an extension reel is used it should be fully unwound before connection. A reel with an RCD fitted is preferred since any appliance plugged into it will be
protected. The cable core section is important and should be at least 1.5mm
2
, but to be absolutely sure that the capacity of the reel is suitable for this
product and for others which may be used in the other output sockets, we recommend the use of 2.5mm
2
section cable.
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WARNING! Be very cautious if using a diesel generator. The generator must be stable with regard to frequency (H3), voltage and wave form.
The output must be higher than the power (kVA) of the inverter. The diesel generator must also be self regulating.
Use of a generator without a regulator may be dangerous and will invalidate your inverter warranty.
Note
that model MW140PLUS has a supply filter to minimize the risk of damage from unstable power supplies and is, therefore, the preferred model when
the only source of power is a generator.
1.2. GENERAL SAFETY
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DANGER! Unplug the inverter from the mains power supply before connecting or disconnect cables or performing maintenance or service.
Direct contact with the inverter circuit is dangerous.
3
Keep the inverter and cables in good working order and condition.
Take immediate action to repair or replace damaged parts.
3
Use genuine parts and accessories only.
Unapproved parts may be dangerous and will invalidate the warranty.
3
Keep the inverter clean for best and safest performance.
3
Locate the inverter in a suitable work area. Ensure that the area has adequate ventilation as welding fumes are harmful.
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WARNING! Cable connectors must be turned fully into the quick plugs to ensure a good electrical contact. Loose connections will cause overheating,
rapid deterioration and loss in efficiency.
3
Ensure that there is no obstruction to the flow of clean, cool air around the machine and ensure that there are no conductive dusts, corrosive vapours or
humidity which could enter the inverter and cause serious damage.
3
Keep the work area clean and tidy and free from unrelated materials. Also ensure that the work area has adequate lighting.
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WARNING: Use welding head shield to protect eyes and avoid exposing skin to ultraviolet rays given off by electric arc. Wear safety welding gauntlets.
3
Remove ill fitting clothing, remove ties, watches, rings and other loose jewellery and contain long hair.
3
Ensure that the workpiece is correctly secured before operating the inverter.
3
Avoid unintentional contact with workpiece. Accidental or uncontrolled switching on of the torch may be dangerous and will wear the nozzle.
3
Protect cables from heat and sharp or abrasive items.
3
Keep unauthorised persons away from the work area. Any persons working within the area must adorn the same protective items.
3
Operators must receive adequate training before using the inverter.
3
Stand correctly keeping a good footing and balance, ensure that the floor is not slippery and wear non-slip shoes.
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WARNING: When unit is switched off the short-circuit light (fig 4. B) will come on for 10-15 seconds whilst the capacitor discharges. DO NOT open
the unit until the light goes out.
FUSE RATING 13 AMP
MW140.V2 & MW140PLUS ONLY
Blue
Neutral
Wire
Yellow & Green
Earth Wire
Cable
Restraint
Brown
Live
Wire
MW140.V2, MW140PLUS, MW150, MW170 - 1 - 110303
