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Safety and Health Standards, OSHA 29 CFR 1910, from
Superintendent of Documents, U.S. government Printing Office,
Washington, D.C. 20402.

Recommended Practices for Plasma Arc Cutting, American
Welding Society Standard AWS C5.2 from American Welding
Society, 550 N.W. LeJeune Rd, Miami, FL 33126

National Electrical Code, NFPA Standard 70, from National
Fire Protection Association, Batterymarch Park, Quincy, MA
02269

Safe Handling of Compressed Gases in Cylinders, CGA
Pamphlet P-1, from Compressed Gas Association, 1235
Jefferson Davis Highway, Suite 501, Arlington, VA 22202

Code for Safety in Welding and Cutting, CSA standard W117.2
from Canadian Standards Association, Standards Sales,  178
Rexdale Boulevard, Rexdale, Ontario, Canada M9W 1R3.

Safe Practices for Occupation and Educational Eye and Face
Protection, ANSI Standard Z87.1, from American National
Standards Institute, 1430 Broadway, New York, NY 10018

Cutting and Welding Processes, NFPA  Standard 51B, from
National Fire Protection Association, Batteymarch Park, Quincy,
MA 02269.

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Considerations about Welding or Cutting and the Effects of Low
Frequency Electric and Magnetic Fields.

Welding or cutting current, as it flows through the welding or
cutting tables, will cause electromagnetic fields. There has been
and still is some concern about such fields. However, after
examining more than 500 studies spanning 17 years of research,
a special blue ribbon committee of  the Nation Research
Council concluded that: “The body of evidence, in the
committee’s  judgment, has not demonstrated that exposure to
power-frequency electric and magnetic fields is a human health
hazard.” However studies are still going forth and evidence
continues to be examined. Until the final conclusions of the
research are reached, you may wish to minimize your exposure
to electromagnetic fields when welding or cutting.  

To reduce magnetic fields in the work place, use the following
procedures:

1. Keep cables close together by twisting or taping them.

2. Arrange cables to one side and away from the operator.

3. Do not coil or drape cables around your body.

4. Keep cutting power source and cables as far away from
operator as practical.

5. Connect work clamp to work piece as close to the cut as
possible.

About Pacemakers:

Pacemaker wearers consult your doctor first. If cleared by your
doctor, then following the above procedures is recommended.

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Never allow electrical contact between a plasma arc torch 
and cylinder.

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Never cut on a pressurized cylinder.  Explosion will result.

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Keep protective cap in place over valve except when cylinder
is in use or connected for use.

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Read and follow instructions on compressed gas cylinders, 
associated equipment, and CGA publication P-1 listed in 
Safety Standards.

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Do not touch hot parts bare handed.

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Allow a cooling period before disassembling the plasma torch.

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Wear safety glasses with side shields or face shield.

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Pacemaker wearers keep away.

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Wearers should consult their doctor before going  near 
plasma arc cutting operations.

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Allow cooling period; follow rated duty cycle.

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Reduce amperage (thickness) or reduce duty cycle  
before staring to cut again.

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When cutting aluminum underwater or with the 

water touching the underside of the aluminum, free  

hydrogen gas may collect under the work piece.

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See your cutting engineer and water table instructions for 
help.

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Electromagnetic energy can interfere with sensitive

electronic equipment such as computers and computer-

driven equipment such as robots.

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To reduce possible interference, keep cables as short as 
possible, close together, and down low, such as on the floor.

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Locate cutting operation 300 feet from any sensitive 
electronic equipment.

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Be sure this cutting power source is installed and grounded 
according to manual.

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If interference still occurs, the user must take extra measures 
such as moving the machine, using shielded cables, using

line filter, or shielding the work area.

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Safety in Welding and Cutting, ANSI standard A49.1 from
American Welding Society, 550 N.W. LeJuene Rd, Miami FL 33126

6

Содержание MicroCut 875S

Страница 1: ...Mi c r o C u t 8 7 5 S ...

Страница 2: ...you have purchased one of the most technologically advanced safest and economical plasma cutters available today The owner s manual has been designed to instruct you on the safe operation of your Micro Cut 875S If you read and follow the instructions in this manual your plasma cutter will provide you with years of trouble free operation If you fail to read and understand this manual as well as cor...

Страница 3: ...ED BY HTP Limited Warranty Subject to the terms and conditions hereof HTP warrants to its Distributor Dealer that all MicroCut 875S Plasma Cuffers furnished by HTP are free from defect in workmanship and material as of the time and place of delivery by HTP No warranty is made by HTP with respect to trade accessories or other items manufactured by others Such trade accessories and other items are s...

Страница 4: ...are also live when power is on Plasma arc cutting requires higher voltages than welding to start and maintain the arc 100 300 volts dc are common but also uses torches designed with safety interlock systems which turn off the machine when the shield cup is loosened or if tip touches electrode inside the nozzle Incorrectly installed or improperly grounded equipment is a hazard Do not touch live ele...

Страница 5: ...f ventilation is poor use an approved air supplied respirator Read the Material Safety Data Sheet MSDS and the manufacturer s instruction for metals to be cut coating and cleaners Work in a confined space only if it is well ventilated or while wearing an air supplied respirator Fumes from cutting and oxygen depletion can alter air quality causing injury or death Be sure the breathing air is safe D...

Страница 6: ...ece as close to the cut as possible About Pacemakers Pacemaker wearers consult your doctor first If cleared by your doctor then following the above procedures is recommended Never allow electrical contact between a plasma arc torch and cylinder Never cut on a pressurized cylinder Explosion will result Keep protective cap in place over valve except when cylinder is in use or connected for use Read ...

Страница 7: ...the filter needs to be discarded If you do not have a drier on your compressor we strongly recommend the HTP Max Dry Part 25310 This is a 3 stage filter which completely removes all oil and water from the air The first stage of the Max Dry removes the water which is present in the air The second stage of the filter removes any oil which may be in the air along with particulate down to 03 microns T...

Страница 8: ...hat the air pressure is set to 70 psi for the correct operation of the machine with the air pressure flowing 3 THERMO SWITCH LIGHT if the duty cycle of the machine is exceeded 40 at 60 amps the yellow thermo switch light will be illuminated If this happens leave the machine on so the cooling fan will continue to run cooling the machine When the machine has cooled down the yellow light will go out ...

Страница 9: ...metal The Automatic mode is designated by the dashed line or the lower position We recommend leaving the machine in the manual setting unless there is some need to have the arc automatically ignite once contact is lost with the metal 10 PLASMA TORCH CONNECTION the central adapter block is where the plasma torch connects to the front of your Micro Cut 875S Your machine will not operate without the ...

Страница 10: ... cool the plasma torch When using the drag cutting tip the highest cutting efficiency is achieved by keeping the plasma cutting tip perpendicular and in contact with the work surface putting very little downforce on the plasma torch If you move too fast sparks will shoot up and you will not cut all the way through the work If you are cutting correctly all the plasma sparks will go beneath the pane...

Страница 11: ...ent cutting of circles and lines Fig 8 Circle Cutting Attachement 2 When cutting heavier gauge material up to the machine capability it is recommended to initiate the pilot arc off the edge of the material and dragging the pilot arc to the work piece 3 When making rust repairs it is possible to place the new metal over the rusted area and then cut your patch panel at the same time you cut the rust...

Страница 12: ... Speed Chart MicroCut 875S 40 amps HTP MICROCUT 875S SPECIFICATIONS Primary Voltage 230 volts Primary Amperage 40 amps Cutting Current 30 to 55 amps Infinitely Variable Open Circuit Voltage 320 Volts DC Duty Cycle 40 55 amps 100 45 amps Cutting Voltage 102 VDC 55 amps 96 VDC 45 Amps Quality Cutting Capacity _ 7 _ min Severance Cutting Capacity 1 1 8 3 min Weight 40 lbs Dimensions 22 L x 8 W x 11 1...

Страница 13: ...o Switch 660554 6 ID Label 660555 7 Torch Ground Label 20320 8 Female Ground Receptacle 22312 Male Ground Plug 22310 Ground Clamp Complete 61471 9 Female Torch Receptacle 660556 17 Decal Side Panel 62020 18 Side Panel 66028 19 Knob Amperage 660553 38 Front Panel Label MicroCut 875S Parts Breakdown part 1 ...

Страница 14: ...Illus Description 610889 10 PCB Primary Power 64393 11 Gas Solenoid Valve 64032 12 Pressure Safety Switch 650193 13 Control Transformer 64180 14 Fuse Holder 203335 2 15 Fuse MicroCut 875S Parts Breakdown part 2 ...

Страница 15: ...7 Choke Coil 66160 28 Gas Hose 61733 29 PCB Input Power 62018 30 Cabinet Base 64215 31 Thermoswitch 70 C 63053 32 Pressure Guage 63055 33 Regulator 64132 34 MicroSwitch Safety 62639 35 Center Panel 62022 36 Regulator Bracket MicroCut 875S Parts Breakdown part 3 ...

Страница 16: ...lus Description 64182 21 Cooling Fan 610784 22 SPCB Secondary Powe 65775 23 Thermoswitch 80 C 610833 24 PCB Pilot Switchover 62572 25 Front Panel 64154 26 On Off Switch MicroCut 875S Parts Breakdown part 4 16 ...

Страница 17: ...17 MicroCut 875S Wiring Diagram ...

Страница 18: ...18 ...

Страница 19: ...19 ...

Страница 20: ...20 ...

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