Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD INTRODUCTION IMPORTANT! This handbook must be consigned to the user prior to installation and commissioning of the unit. Read the "General prescriptions for use" handbook supplied separately from this handbook before installing and commissioning the unit.
ENGLISH WELD THE WORLD 1.1 PRESENTATION Discovery 172T is an inverter DC TIG/MMA portable welding power source. The sturdiness of the components of this unit makes it a reliable working companion for workshop and outdoor applications. The available DC TIG functions and digital control make this unit ideal for maintenance, building con- struction, and light metalwork.
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD INSTALLATION DANGER! Lifting and positioning Read the warnings highlighted by the following symbols in the “General prescriptions for use”. 2.1 CONNECTIONS TO THE MAINS POWER SUPPLY The characteristics of the mains power supply to which the equipment shall be connected are given in the chapter entitled “12 TECHNICAL DATA”...
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 2.4 PREPARING FOR MMA WELDING 1. Set the welding power source ON/OFF switch to “O” (unit off). 2. Plug the power cable plug into a mains socket. 3. Choose the electrode based on the type of material and thickness of the workpiece to be welded.
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 2.5 PREPARING FOR TIG WELDING 1. Set the welding power source ON/OFF switch to “O” (unit de-energized). 2. Plug the power cable plug into a mains socket outlet. 3. Connect the gas hose from the welding gas cylinder to the rear gas connection.
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD USER INTERFACE Discovery 172T L10 L11 L26 L27 L29 L28 CODE SYMBOL DESCRIPTION This LED illuminates to show an anomaly in the operating conditions. Illuminates to show the last voltage and current values measured during welding.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD Illumination shows that the following parameter can be set: Q-START Illumination shows that the following parameter can be set: DYNAMIC ARC Illumination shows that the following parameter can be displayed: MULTI TACK...
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD Data setting: The display shows the acronym of the parameter to be set. Welding: The display shows the effective amperes value during welding. HOLD function: The display shows the average current value measured over the entire welding period (excluding the starting and ending slopes).
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD RESET (LOAD FACTORY SETTINGS) L10 L11 L26 L27 L29 L28 ACTIVATION ACTIVATION The reset procedure involves complete restoration of the default values, parameters and memory set- tings set in the factory.
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD SET-UP (INITIAL SET-UP OF THE WELDING POWER SOURCE) L10 L11 SETTING L26 L27 L29 L28 ACTIVATION/ EXIT SELECTION ○ Set the welding power source ON/OFF switch to “O” to switch the unit off.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD - St.C. [STARTING CURRENT] ○ The value of this parameter can be set as a percentage of the welding current or as an absolute value expressed in Amperes. F.Cu. [FINAL CURRENT] ○...
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD ALARM MANAGEMENT This LED illuminates if an incorrect operating condition occurs. An alarm message will appear on display D1. Tab. 2 - Alarm messages MESSAGE MEANING EVENT CHECKS • Make sure that the power re-...
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD MMA WELDING 8.1 MMA WELDING - FIRST LEVEL MENU L10 L11 SETTING L26 L27 L29 L28 ACTIVATION SELECTION ○ Press the S6 button to activate the MMA mode. ○ Press the S3 button.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD Tab. 3 - Parameters of 1st level menu: mode ACRONYM / LED SETTING DEFAULT NOTES WELDING CURRENT 10 A 80 A 180 A MAXIMUM CURRENT WITH REMOTE CONTROL Ho.S. HOT-START...
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 8.2 MMA WELDING - SECOND LEVEL MENU L10 L11 SETTING L26 L27 L29 L28 3 sec ACTIVA- TION/SELECTION ○ Hold down the S2 button for 3 seconds to access the 2nd level menu.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD The activation is suitable for the following welding modes: • MMA • DC TIG Compatible remote control types: • manual remote control. *4: The activation is suitable for the following welding modes: •...
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 8.3 MMA WELDING - SPECIAL FUNCTIONS L10 L11 SETTING L26 L27 L29 L28 ACTIVATION ○ Press the S2 button to scroll the list of settings to edit. The value associated with the selected setting appears on display D1.
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD DC TIG WELDING 9.1 DC TIG WELDING - FIRST LEVEL MENU L10 L11 SETTING L26 L27 L29 L28 SELECTION SELECTION ACTIVATION ○ Press the S6 button to activate the TIG mode.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD ○ Press the S3 button to scroll the list of settings to edit. The value associated with the selected setting appears on display D1. In this diagram the LED relative to the setting to be edited illuminates.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD ACRONYM / LED SETTING DEFAULT MAX USEFUL ADVICE WELDING CURRENT MAXIMUM CURRENT WITH RE- 80 A 170 A MOTE CONTROLLER SECOND CURRENT B-LEVEL 10 % 50 % 200 % 40 %...
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD present: MULTI TACK = ON The usefulness of having an adjustable initial welding current is that of avoiding welding the part with excessively high current values and thus potentially damaging it.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD • Reduction of heat-affected zone. - BASE TIME ○ Time during which current output is at the base value. Available with settings for SET UP, PULSED TYPE = SLOW, the adjustment is expressed in seconds.
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 9.2 TIG DC WELDING - SECOND LEVEL MENU L10 L11 SETTING L26 L27 L29 L28 3 sec ACTIVATION/ SELECTION ○ Hold down the S3 button for 3 seconds to access the 2nd level menu.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD The maximum and minimum TIG welding current values can be set with the foot pedal control. The up and down slopes cannot be controlled via the foot pedal. The following welding procedures can be selected with the foot pedal:...
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD electric arc. It is advisable to use LIFT-ARC priming in applications such as maintenance of machinery in operation, welding close to printed circuits or soldering near computers. PROCESS FOR ARC IGNITION IN LIFT-ARC MODE:...
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 9.3 TIG DC WELDING - SPECIAL FUNCTIONS MENU L10 L11 SETTING L26 L27 L29 L28 ACTIVATION/SE- LECTION ○ Press the S2 button to scroll the list of settings to edit.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD Q-START ○ This parameter allows the unit to start in synergic pulsed TIG mode for the preset time interval, before switching automatically to the welding procedure selected on the interface panel. The pa- rameter creates the weld pool more quickly than a standard starting time of the material because it creates a movement of the two flaps up to speed up the join.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD Tab. 13 - Recommended DYNAMIC ARC parameters ANY TYPE OF JOINT Sheet thickness (mm) Current (A) DynArc Value (Amperes) 1,0 mm 35 A - 50 A 5 - 10 2,0 mm...
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD Tab. 14 - Recommended MULTITACK parameters CORNER/BUTT JOINT Sheet thickness (mm) Current (A) Multitack FREQUENCY (Hz) 0.6 mm 40 A - 60 A 1.0 - 1.5 0.8 mm 60 A - 80 A 1.0 - 1.5...
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD - 2 STROKE + HF ○ Bring the torch up to the work until the electrode tip is approximately 2 or 3 mm away. ○ Press (1T) and keep the torch trigger pressed.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 4th STROKE 1st STROKE 2nd STROKE 3rd STROKE WELDING CURRENT FINAL CURRENT C.C. STARTING CURRENT CURRENT DOWN POST GAS ARC STRIKE LIFT SLOPE SLOPE - 4 STROKE + HF ○ Bring the torch up to the work until the electrode tip is approximately 2 or 3 mm away.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD ○ Slowly lift the torch to strike the arc. ○ The arc strikes, the welding current assumes the pilot current value. (if activated from the SET UP menu.) ○ Release (2T) torch trigger.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD PRESS AND RELEASE 1st STROKE 2nd STROKE 3rd STROKE 4th STROKE MAIN CURRENT FINAL SECOND CURRENT CURRENT STARTING CURRENT DOWN POST GAS PRE-GAS SLOPE SLOPE ARC STRIKE...
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 10.1 2 STROKE SPOT - Q-SPOT FUNCTION L10 L11 SP.t. SETTING L26 L27 L29 L28 3 sec ACTIVATION/ ACTIVATION SELECTION ○ Press the S5 button to select the TORCH 2 STROKE SPOT BUTTON mode.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD pipes. Place the torch with the electrode on the precise point to be fixed. • Press the torch trigger and then lift. • After lifting the torch, a precise trigger will follow.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD - 2 STROKE SPOT HF: ○ Bring the torch up to the work until the electrode tip is approximately 2 or 3 mm away. ○ Press (1T) torch trigger. ○ The arc strikes without contact with the workpiece and the voltage discharges (HF) cease auto- matically.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 1. Position the torch 2. Press the torch Lift torch 4. The arc ignites for 5. The result of this with the electrode on trigger and keep it slightly. a few hundredths of is a very precise, the workpiece.
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD Tab. 18 - Table showing enabled Welding Parameters MODE → MENU PROCEDURE ↓ → PARAMETER ↓ WELDING CURRENT 1° (MMA) MAXIMUM RC CURRENT IN MMA MODE 1° HOT START √...
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 11 JOBS MANAGEMENT Personalised welding settings, or JOBs, can be saved in memory locations and subsequently uploaded. Up to 50 JOBS can be saved (j01-j50). JOBs can be managed only when the unit is not in welding mode.
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 11.2 DELETING A JOB L10 L11 SELECTION L26 L27 L29 L28 3sec ACTIVATION CONFIRMATION DELETION ○ Hold down the S4 button for 3 seconds to gain access to the JOB SAVE/DELETE menu.
Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 11.3 LOADING A JOB L10 L11 SELECTION L26 L27 L29 L28 ACTIVATION CONFIRMATION ○ Press and release the S4 button to activate the LOAD JOB menu. L.xx : Only after loading the job, the message will appear on display D1.
Conformity markings compliant with WEEE directive Equipment compliant with RoHS directive 12.1 DISCOVERY 172T Supply voltage 1 x 230 Va.c. ± 15 % / 50-60 Hz Mains protection 16 A Delayed...
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Cod. 006.0001.1960 Discovery 172T 03/05/2019 V.2.2 ENGLISH WELD THE WORLD 40% (40° C) 13.2 A 50% (40° C) 20.4 A Actual input current 60% (40° C) 17.3 A 13.6 A 100 % (40° C) 20.4 A 14.6 A No-load voltage (U0)
021.0004.3360 P. T. P. T. P. T. P. T. Cod. 006.0001.1960 N.C. Discovery 172T 03/05/2019 V.2.2 N.C. DOWN ENGLISH WELD THE WORLD N.C. N.C. 021.0004.0602 TORCH CONNECTOR 13.1 TORCH CONNECTOR (front panel) 021.0004.3360 P. T. REMOTE CONNECTOR code 021.0004.3360 TORCH CONNECTOR...
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