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OM-250 147D 2011−10 Processes Stick (SMAW) Welding TIG (GTAW) Welding Description Arc Welding Power Source Si 160, STi 160, And STH 160 File: TIG (GTAW) Visit our website at www.MillerWelds.com...
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Warranty and service information for your particular model are also provided. Miller Electric manufactures a full line of welders and welding related equipment. For information on other quality Miller products, contact your local Miller...
ITW Welding Products Italy S.r.l Via Privata Iseo 6/E, 20098 San Giuliano M.se, (MI) Italy declares that the product(s) identified in this declaration conform to the essential requirements and provisions of the stated Council Directive(s) and Standard(s). Product/Apparatus Identification: Product Stock Number Si 160 059016011 STi 160 059016012 STH 160 059016013...
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som _2010−03 Protect yourself and others from injury — read and follow these precautions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions. not avoided, will result in death or serious injury. The possible hazards are shown in the adjoining symbols or explained in the text.
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D Keep your head out of the fumes. Do not breathe the fumes. D Wear oil-free protective garments such as leather gloves, heavy shirt, cuffless trousers, high shoes, and a cap. D If inside, ventilate the area and/or use local forced ventilation at the arc to remove welding fumes and gases.
1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can injure. D Do not install or place unit on, over, or near D Keep away from moving parts such as fans. combustible surfaces. D Keep all doors, panels, covers, and guards D Do not install unit near flammables.
1-4. California Proposition 65 Warnings For Gasoline Engines: Welding or cutting equipment produces fumes or gases which contain chemicals known to the State of California to Engine exhaust contains chemicals known to the State of cause birth defects and, in some cases, cancer. (California California to cause cancer, birth defects, or other reproduc- Health &...
SECTION 2 − DEFINITIONS 2-1. Warning Label Definitions A. Warning! Watch Out! There are possible Breathing welding fumes can be 3.3 Do not weld on drums or any closed hazards as shown by the symbols. hazardous to your health. containers. 2.1 Keep your head out of the fumes.
2-2. Symbols And Definitions Suitable For Areas Shielded Metal Arc Amperes Voltage Input Of Increased Welding (SMAW) Shock Hazard Increase/Decrease Single Phase Static Frequency Volts Of Quantity Converter-Transformer-Rectifier Output Negative Positive Hertz Gas Input High Temperature Direct Current Line Connection Conventional Load Percent Duty Cycle...
SECTION 3 − SPECIFICATIONS AND INSTALLATION 3-1. Important Information Regarding CE Products (Sold Within The EU) A. Information On Electromagnetic Fields (EMF) This equipment shall not be used by the general public as the EMF limits for the general public might be exceeded during welding. This equipment is built in accordance with EN 60974−1 and is intended to be used only in an occupational environment (where the general public access is prohibited or regulated in such a way as to be similar to occupational use) by an expert or an instructed person.
3-6. Duty Cycle And Overheating Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating. If unit overheats, output stops, the Overtemperature Light comes On, and the cooling fan runs. Wait fifteen minutes for unit to cool. Reduce am- perage or duty cycle before starting to weld again.
In dedicated circuit installations, the National Electrical Code (NEC) allows the receptacle or conductor rating to be less than the rating of the circuit protection device. All components of the circuit must be physically compatible. See NEC articles 210.21, 630.11, and 630.12. Si 160 Sti 160 STH 160...
3-9. Connecting 1-Phase Input Power For 230 VAC Installation must meet all National and Local Codes − have only qualified persons make this installation. Disconnect lockout/tagout =GND/PE input power before connecting Earth Ground input conductors from unit. Always connect green or green/yel- low conductor to supply grounding terminal first, and never to a line terminal.
SECTION 4 − OPERATION 4-1. Controls For Si 160 956142809_3-6_D Weld output terminals are energized Light comes on if unit overheats. Welding can Negative Weld Output Receptacle when power is On and Ready Light resume when unit has cooled (see Section (LED) is lit.
4-3. Preparing Unit For Stick Welding (Si Model) Weld output terminals are energized when power is On, and Ready Light is lit. Positive Weld Output Receptacle Connect electrode cable to this re- ceptacle. Negative Weld Output Receptacle Connect work cable to this recep- tacle.
4-4. Controls For STi 160 8 8 8 956142809_3-6_D Weld output terminals are energized For Stick welding, connect electrode cable to remote control and by the Amperage/ when power is On, and Ready Light is this receptacle. For TIG welding, connect work Set-up Adjustment control.
4-5. Preparing Unit For Stick Welding (STi Model) =Light Flashing =Light Off =Light On =Light Flashing If Voltage Reduction Device Is On Process Selection Set-Up Menu Press And Release Press And Hold Weld output terminals are ener- ceed as follows: Example: If preset amperage is 90 amps, gized when power is On, and 0% = 90 amps, 50% = 135 amps.
4-6. Preparing Unit For TIG Welding (STi Model) =Light Flashing =Light Off =Light On =Light Flashing If Voltage Reduction Device Is On Process Selection Set-Up Menu Press And Release Press And Hold Weld output terminals are ener- and then the factory default setting of 50 switch.
4-7. Controls For STH 160 8 8 8 956142809_3-6_D Weld output terminals are energized Negative Weld Output Receptacle 10 Power Switch when power is On, and Ready Light is Place switch in On (I) position to turn unit on. For Stick welding, connect work cable to this lit.
4-8. Preparing Unit For Stick Welding (STH Model) =Light Flashing =Light Off =Light On =Light Flashing If Voltage Reduction Device Is On Process Selection Set-Up Menu Press And Release Press And Hold Weld output terminals are ener- ceed as follows: Example: If preset amperage is 90 amps, gized when power is On, and 0% = 90 amps, 50% = 135 amps.
4-9. Preparing Unit For TIG Welding (STH Model) =Light Flashing =Light Off =Light On =Light Flashing If Voltage Reduction Device Is On Process Selection Set-Up Menu Press And Release Press And Hold Positive Weld Output Terminal Prepare unit for TIG welding as follows: Anti Stick Anti Stick prevents the electrode from Connect electrode holder to negative...
4-10. Gas Connections (STH Models) Remove cap, stand to side of valve, and open valve slightly. Gas flow blows dust and dirt from valve. Close valve. Regulator/Flowmeter Install so face is vertical. Flow Adjust Typical flow rate is 15 CFH (cubic feet per hour) (7.1 liters per minute).
4-12. Sequence Controls And Slope Down Settings (STH Models) Sequencing is only available while using a TIG process. Select TIG process according to Section 4-9. Sequencer Control LEDs Ammeter And Parameter Display (Meter) Amperage/Set-Up Adjustment Control Sequencer Parameters Switch To enter Sequencer Control set-up mode and scroll through paramet- ers, press and release the Sequen- cer Parameters switch.
4-13. Pulser Control Settings (STH Models) Pulsing is only available while using a TIG process. Select TIG process according to Section 4-9. Pulser LEDs Ammeter And Parameter Display (Meter) Amperage/Set-Up Adjustment Control Pulser Control Switch Pulser Light (LED) Pulser light is on when pulser is on. To enter Pulser set-up mode and scroll through parameters, press and release the Pulser Control...
4-14. Resetting Unit To Factory Default Settings (STi And STH Models) This procedure will delete all operator specified parameters, and recall all factory parameters. Process/Set-up Switch Power Switch Turn unit off. Turn unit on while pressing and holding Process/Set-up switch; wait for a beep signal (about two seconds).
SECTION 5 − MAINTENANCE AND TROUBLESHOOTING 5-1. Routine Maintenance Disconnect power before maintaining. Maintain more often during severe conditions. n = Check Z = Change ~ = Clean = Repair l = Replace * To be done by Factory Authorized Service Agent Every Months ~ Weld Terminals...
5-3. Troubleshooting Trouble Remedy Place line disconnect switch in On position (see Section 3-9). No weld output; unit completely inop- erative; ready light (LED) Off. Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 3-9). Check for proper input power connections (see Sections 3-8 and 3-9). Unit overheated causing thermal shutdown.
SECTION 7 − PARTS LIST FOR Si MODELS Hardware is common and not available unless listed. 956 142809_4-6_D Figure 7-1. Main Assembly For Si 160 Item Dia. Part Mkgs. Description Quantity 7-1. Main Assembly For Si 160 . . .
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Dia. Part Mkgs. Description Quantity 7-1. Main Assembly For Si 160 (Continued) ....156005158 Bracket, pcb assy support ........
SECTION 8 − PARTS LIST FOR STi MODELS Hardware is common and not available unless listed. 956142809_5-6_F Figure 8-1. Main Assembly For STi 160 Item Dia. Part Mkgs. Description Quantity 8-1. Main Assembly For STi 160 ..
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Item Dia. Part Mkgs. Description Quantity 8-1. Main Assembly For STi 160 (Continued) ..057084160 Circuit Board, Pwm ..........
SECTION 9 − PARTS LIST FOR STH MODELS Hardware is common and not available unless listed. 956142809_6-6_F Figure 9-1. Main Assembly For STH 160 Item Dia. Part Mkgs. Description Quantity Figure 9-1. Main Assembly For STH 160 ..
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Item Dia. Part Mkgs. Description Quantity Figure 9-1. Main Assembly For STH 160 (Continued) ..057084160 Circuit Board, Pwm ..........
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Effective January 1, 2011 (Equipment with a serial number preface of MB or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other guarantees or warranties expressed or implied. LIMITED WARRANTY − Subject to the terms and conditions 90 Days —...
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File a claim for loss or damage during Phone: 39 (0) 2982901 Fax: 39 (0) 298290-203 shipment. email: miller@itw−welding.it For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. ORIGINAL INSTRUCTIONS − PRINTED IN USA 2011 Miller Electric Mfg. Co. 2011−01...
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