CobraTig® 150 SM Owner’s Manual Product: CobraTig® Manual: 091-0675 Serial: 13110001 Voltage Rating: 100/120/208220/230-240VAC Revision: Nov 2013 Rev B Model Number: 254-153 254-252
Table of Contents INTRODUCTION........................................................................1 Section 1 Technical Information............................................2 Section 2 Mechanical Information.........................................2 Section 3 Weldhead and Torches..........................................2 Section 4 Connections.........................................................3 Section 5 Operation.............................................................
Declaration of Conformity for European Community (CE) Products Note This information is provided for units with CE certification (see rating label on unit). Manufacturer’s Name: MK Products, Inc. 16882 Armstrong Ave.
SAFETY CONSIDERATIONS ELECTRIC ARC WELDING EQUIPMENT CAUTION : READ BEFORE ATTEMPTING INSTALLATION, OPERATION OR MAINTENANCE OF THIS EQUIPMENT 1-1 INTRODUCTION This equipment is intended for ultimate application by commercial/industrial users and for operation by persons trained and experienced in the use and maintenance of welding equipment. Operation should not be undertaken without adequate training in the use of such equipment.
washing, depending on the combustible’s solubility), followed by purging and inerting with nitrogen or carbon dioxide, and using protective equipment. Water-filling just below working level may substitute for inerting. A container with unknown contents should be cleaned (see paragraph above). Do NOT depend on sense of smell or sight to determine if it is safe to weld or cut. Hollow castings or containers must be vented before welding or cutting. They can explode. Explosive atmospheres.
operator invites trouble. The equipment carries high currents at significant voltages. The arc is very bright and hot. Sparks fly, fumes rise, ultraviolet and infrared energy radiates, weldments are hot, and compressed gases may be used. The wise operator avoids unnecessary risks and protects himself and others from accidents. A. Burn Protection Comply with precautions in 1-2. The welding arc is intense and visibly bright.
INTRODUCTION The portable, lightweight CobraTig 150 SM with SmartArc® provides the automatic control you need to deliver repeatability, verification and traceability in high-integrity orbital and manual welding. SmartArc software develops a near ideal weld procedure through the use of our Automatic Procedure Generator. Just enter the tube outside diameter and wall thickness... The rest is automatic. This version of CobraTig Software and Hardware has the latest in Micro-Tig Technology.
Section 1 Technical Information Line Power: 100VAC 50/60 Hz Single Phase, 15A (+/- 10%) 120VAC 50/60 Hz Single Phase, 15A 208-220/230-240VAC 50/60 Hz Single or Three Phase,30A Output Current: 0.1~150A (+/- 1%), Constant or Pulsed Minimum Arc Starting: 0.5 to 25 Amps Pulse Rate: 0.01 to 2.25 Seconds Per Pulse Arc Voltage: 65VDC Open Circuit, up to 26 welding VDC Loop Response: 1.5 KHz Current Regulator Freq: 30 KHz Motor Control: 24VDC, 2A min., DC Tachometer Feedback.
Section 4 Connections Input Power The CobraTig 150 SM can operate on any of four different input power values: 100VAC, 120VAC, 208-220/230-240VAC Single Phase and, 208220/230-240VAC Three Phase. Attached to the unit is a 12ft power cable that comes wired from the factory ready for 120VAC. Even though the installed plug is only three prongs, there are four wires in the cable, ready for three phase power. DANGER DISCONNECT ALL POWER TO THE UNIT PRIOR TO CHANGING THE POWER TAPS.
In order to update the firmware version in the CobraTig® 150, the following items are needed: • CobraTig 150. • PC/Laptop running Windows (Mac not supported). • Null Modem Cable (Female DB9 to Female DB9 ) and/or Serial to USB Adapter Cable • MK Edit/SmartArc Weld Program Editor and latest CobraTig Firmware, downloaded and saved to the Desktop. 1. Connect the Null Modem to CobraTig rear panel and to PC/laptop serial port.
Modem serial cable. View the CobraTig 150 MAIN MENU and inspect for the new firmware version number. 6. Installation Complete Section 5 OPERATION To operate the CobraTig 150 SM portable orbital welding unit, plug in any standard MK Orbital weldhead to the rear panel, and perform the basic setup procedures associated with collets, tungsten, and concentricity.
RS-232 Data Connector The CobraTig uses a DB-9 connector to communicate with an External PC. The wiring for this plug is “cable/null” modem wiring (female connector both ends). Section 6 Main Menu This is the starting menu for the CobraTig 150 SM orbital welder. It is from this menu that all the other menu displays and screens are accessible. From each menu display, there is a one-step button back to this menu. This is not to say that every time this unit is turned on that it will start at this screen.
• Press F4 or F9 and scroll to Curr. L. (A), low weld current in amps. • Press F5 or F10 and enter Low current value from 0.2~150 amps. • Press F4 or F9 and scroll to Pulse H. (S), high weld current pulse time. • Press F5 or F10 and enter High weld current pulse time from 0.00~0.99 seconds. • Press F4 or F9 and scroll to Pulse L. (S), low weld current pulse time. • Press F5 or F10 and enter Low weld current pulse time from 0.00~0.99 seconds.
of the scale. Also, there is a change in the sound once the bottom of the scale has been reached. The sound changes from a single beep to a triple beep. Section 8 Weld Orbital From the MAIN MENU screen press this button to select orbital welding.
Section 9 Recall Program Press the RECALL PROGRAM in order to access the library of operator saved weld procedures. NOTE: If the currently used procedure is not saved, a warning screen of text will prompt for a ‘YES’ or ‘NO’ answer: this is the OVERWRITE screen. Anytime there is a potential change to the existing weld procedure, this screen will appear. If ‘NO’ is pressed, the screen will return to the WELD ORBITAL screen. If ‘YES’ is pressed, the screen will change to RECALL USER MEMORY.
If the current weld program is a temporary, unsaved/modified program, the RECALL screen will be blank. This indicates that the current weld program has not been saved to any location. However, if the current weld program is from one of the saved locations, this screen will display the location it is presently saved at. Press any button that does not contain the word EMPTY. Press WELD ORBITAL to return to that screen to begin welding with the saved procedure.
If the current procedure is to be saved at this location, press “YES”. If this location is to be emptied, and the saved weld procedure erased, press “EMPTY ONLY”. If nothing is to be done with this location, and you need to return to the SAVE PROGRAM MENU, press “NO”. Scroll Right Each time this button is pressed, the locations of where each weld procedure is saved or can be saved to, will move three numbers to the right.
some basic tube or pipe variables, the CobraTig 150 SM digital controller can generate and produce a near ideal weld procedure. The following menu will guide the operator through basic fields of information entry. Beginning with selections for tube or pipe and diameter and wall thickness. Additional information can be designed into the procedure that include different pulse types, up to 5.0 seconds motor delay time, multiple revolutions, and programming of up to 7 opposing tacks.
Print Graph This function works with the Printer After Welds function. Pressing this button toggles the command from YES (prints weld procedure parameters plus entire weld graph), to NO (prints weld procedure parameters only). Paper Feed Press and hold this button down in order to feed paper through the printer driver mechanism. This is especially useful after loading a new roll of paper.
This will give a weld procedure printout, first showing the description of the procedure, followed by the all the welding parameters, then by Limit and Deviation parameters, then by the actual strip chart of the weld amperage, arc voltage and motor speed. Program List Press this button to printout the complete listing of all the weld procedures saved in the memory of the unit.
Connect an external DC voltage power supply to the shunt connectors labeled ‘ARC VOLTAGE’ and adjust to 1.8 VDC input. Reference the VDC bar graph on the LCD screen, press the 1.8 VDC button, this will set the calibration. Set the input to 18.0 VDC and repeat the above process. The procedure will cycle through twice for an average reading and setting, then quit when ready. Adjust Up Press this button to adjust the bar graph setting to match that of the reference value being read - voltage or current.
MOTOR gain: TACH gain: MOTOR Calibration report 0.0% Zero offset: 0.0% Zero offset: 0.00 RPM 0.00 RPM NOTE: If all values for MOTOR or WELDER calibration are zeros, it means that he calibration did not complete successfully and is not valid. Start Calibration Press this button to start the weldhead calibration procedure. The calibration start at the values selected using the “ADJUST UP” and “ADJUST DOWN” buttons.
Save Menu Press this button to change to the SAVE MENU. Xmit Channel This button will toggle between two choices of transmission. Either Infra Red or Wired Cable. Start Receive To begin transmitting a procedure to another machine, press this button. Scroll Left Each time this button is pressed, the locations of where each weld procedure is saved or can be saved to, will move three numbers to the left.
Increase S/N This button will INCREASE the starting serial number of the next orbital weld. The serial number is incremented before every weld, so use one number less than actual number of next weld. Higher Contrast Press this button to increase the contrast for the LCD screen. This will make the display darker as the number increases. Change Units Press this button to toggle units from INCHES to METRIC. It will only affect the screen display when using AUTO PROCEDURE GENERATION, see MAIN MENU.
Change Hour Press to increase the hour of the day. In 12 Hour mode, the AM/PM will change automatically. 12-Hour Range: 1 -12 AM & 1 - 12 PM 24-Hour Range: 0 - 23 Change Minute Press to increase the minute of the hour. Once the end of the range is reached, the sequence will revert again. Range: 0 - 59. Change Day Press to increase date of the month. Range: 1 - 31. Change Month Press to increase the change of month. Range: Jan - Dec Change Year Press to increase the year.
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16882 Armstrong Ave. Irvine, CA 92606 Tel (949)863-1234 Fax (949)474-1428 www.mkproducts.
16882 ARMSTRONG AVE. IRVINE,CA 92606 TEL (949) 863-1234 FAX (949) 474-1428 WWW.MKPRODUCTS.
