background image

1) ON-OFF SWITCH

– the On-Off switch is located on the

rear of your Micro Cut 380.  I is on and O is off.  When the
switch is in the on position, it will light up.

2) CUTTING POWER ADJUSTMENT

– the cutting power

adjustment controls the cutting amperage of your Micro Cut
380.  It is infinitely variable from 15 to 30 amps.  At the lower
power settings, the machine will throw fewer sparks - but will
also cut slower.  The maximum cutting power will give you the
maximum cutting speed through all materials.

3) AIR PRESSURE REGULATOR

– use the air pressure

regulator to adjust the pressure gauge on the front of the cutter
to 65 psi.  The pressure regulator also has a filter, which should
be drained regularly.

4) AIR PRESSURE GUAGE

– the air pressure gauge measures

the plasma gas pressure and should be set to 65 psi for optimum
cutting performance.  To adjust the plasma gas pressure, flip the
air purge switch (#8) to start air flowing.  Adjust the regulator to
achieve the correct pressure while air is flowing through the
plasma torch.

5) YELLOW "CUTTING CURRENT LIGHT

– when this

lamp is on, the trigger on the cutting torch is depressed and
either the pilot arc or the cutting arc has been activated.  This
lamp will not be illuminated with the trigger depressed when:

A)  The cutting arc has been interrupted because the torch was 

moved too far away from the workpiece.

B)  If the cutting arc is not brought in contact with the 

workpiece within 2 seconds.

C)  If the electrode or cutting tip is worn out.

6) RED "GENERAL ALARM" LIGHT

– this lamp will

illuminate red when the duty cycle of the machine has been
exceeded (30% @ 30 amps).  This lamp also indicates an
overvoltage or undervoltage condition.  Reset is automatic.
The lamp will also illuminate when the air pressure is too low.
Reset is also automatic.

7) YELLOW "AIR PRESSURE" LIGHT

– your Micro Cut

380 has a safety sensing circuit which has been installed to
eliminate the arc ignition if the air pressure and volume are
inadequate.  If this occurs, the yellow air pressure light will be
illuminated.  Once air pressure has been restored, the light will
go out.  Your Micro Cut 380 requires 65 psi of air when air is
flowing through the torch.

8) AIR PURGE SWITCH

– the air purge switch allows you 

to purge air through the torch, allows you to manually cool the
cutting torch after long periods of cutting, and allows you to set
the air pressure while flowing air through the plasma torch.

To purge the torch, simply flip the toggle switch up and release.
Air will flow for approximately 30 seconds and stop.

9) GREEN "POWER ON" LIGHT

– when the machine is

correctly connected to a 220 volt input power supply, and the
on-off switch at the rear of the plasma cutter is turned on, a
green light will be illuminated, indicating your Micro Cut 380 
is connected to the correct power supply.

10) GROUND CABLE CONNECTION

– this is where 

the ground cable connects to the front of your Micro Cut 380.
Align the tab on the ground clamp with the notch in the
connection.  Insert the ground clamp and twist to lock in place.
Be sure to connect the ground to the workpiece properly.  
(See page 6 – ground cable connection)

6

(Fig. 5

)

Operation

1. Be sure your Micro Cut 380 is connected to a clean, dry 

source of com-pressed air with a line pressure of at least 80 
but not more than 140 psi.  Be sure the air pressure is 
adjusted to 65 psi (see Micro Cut 380 Controls #4)

2. Connect your Micro Cut 380 to a 220-volt power supply.  

(See electrical connection).  Turn the On-Off switch on the 
back of the unit on.  The green "power on" light will turn on.
The fan will begin to run.

3. Set your cutting power adjustment to the desired amperage. 

(usually 30 amps)

4. Refer to the safety suggestions to be sure the operator has 

the correct eye protection, gloves, clothing, and that all of the
safety precautions have been followed.

Содержание Micro Cut 380

Страница 1: ...HTP Air Plasma Cutting System Micro Cut 380 America Inc HTP America Inc 3200 Nordic Road Arlington Heights IL 60005 4729 1 800 USA WELD 847 357 0700 FAX 847 357 0744 www usaweld com ...

Страница 2: ...sed 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 380 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 correctly follow th...

Страница 3: ...in the following periods from the date of delivery of Equipment to the original user 1 Plasma cutters power sources and components 1 year 2 All plasma torches 90 days 3 The electrode cutting nozzle insulator spring and gas diffuser are consumable items WHICH CARRY NO WARRANTY provided that HTP is notified in writing within thirty 30 days of the date of such failure As a matter of general policy on...

Страница 4: ...shing equipment handy for instant use After completion of cutting inspect the work area for hazardous hot sparks or metal Electrical Shock Voltages in excess of 110V can cause severe burns or fatal shock Severity of electrical shock is determined by the path and amount of current through the body a Never allow live metal parts to touch bare skin or wet clothing When standing on metal or welding in...

Страница 5: ... low air pressure led Fig 3 6 will light up Damage to your plasma cutter due to excessive water and or oil in the air supply line is not covered under warranty Your Micro Cut 380 comes equipped with a regulator filter In addition HTP has 2 filters available for removing any impurities from the air If you already have a drier on your compressor we recommend the HTP Super Dry Part 25300 which is a d...

Страница 6: ... or green wire to an input hot line terminal It is also strongly recommended that a fusible line disconnect switch be installed in the input power circuit to the plasma machine This would provide a safe and easy method to remove all electrical power from your plasma system whenever it is necessary to perform internal inspection or servicing BEFORE ATTEMPTING TO MAKE ANY PRIMARY POWER CONNECTIONS T...

Страница 7: ...E LIGHT your Micro Cut 380 has a safety sensing circuit which has been installed to eliminate the arc ignition if the air pressure and volume are inadequate If this occurs the yellow air pressure light will be illuminated Once air pressure has been restored the light will go out Your Micro Cut 380 requires 65 psi of air when air is flowing through the torch 8 AIR PURGE SWITCH the air purge switch ...

Страница 8: ... the plasma sparks will go beneath the panel you are cutting 7 When piercing a thicker sheet of steel 1 8 thick to 5 16 hold the torch at approximately a 45 degree angle and gradually roll the torch until it is perpendicular to the work piece Fig 6 If the torch is held perpendicular to the work to start there will be no where for the slag to flow and it will come straight up and damage the gas dif...

Страница 9: ...ng speed is dependent on material thickness and composition as well as operator proficiency 6 Never turn the machine off immediately after cutting Always allow the post airflow circuitry to run its complete cycle to ensure proper cooling of the torch head 7 It is highly recommended that piercing requirements be kept to a maximum of 75 of rated cutting thickness This will greatly enhance the plasma...

Страница 10: ...101 16 Current Transformer 152230 17 Choke Coil 164989 18 Transformer 164990 19 Buckle 322065 Spare Parts List Ref Description Part 21 Belt 322408 22 Frame 322497 23 Front Panel 482829 24 Back Panel 482830 25 Diaphram 482833 26 Side Member 482834 27 Pressure Guage 602072 28 Bottom 644183 29 Cover 655061 30 Work Clamp 712231 31 Ground Receptacle 20320 32 Plasma Torch 38180 33 Primary PCB 990179 34 ...

Страница 11: ...wn Ref Description Part 1 Trigger Switch 14009 3 Electrodes 38003 Extended Electrodes 62003E 5 Swirl Ring 62058 6 Cutting Tips 38030 Extended Cutting Tip 62030E 8 Gas Diffuser 38005 9 Handle 38008 10 Torch Head 38002 Complete Torch 38180 ...

Страница 12: ...11 MicroCut 380 Wiring Diagram ...

Отзывы: