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Hobart Welding Products OM-947 Typical Control Settings, Wire Size Amperage Range, Select Voltage

Models: OM-947

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9-3. Typical Control Settings

.These settings are guidelines only. Material and wire type, joint design, fitup, position, shielding gas, etc. affect settings. Test welds to be sure they comply to specifications.

Material thickness determines weld

 

parameters.

 

1/8 or 0.125 in

Convert Material

 

Thickness to

 

Amperage (A)

 

(0.001 in = 1 ampere)

 

0.125 in = 125 A

.035 in

Wire Size

Amperage Range

 

 

 

 

0.023 in

 

30 − 90 A

0.030 in

40 − 145 A

0.035 in

50 − 180 A

 

 

 

 

 

 

 

 

 

 

 

 

Select Wire Size

 

 

Wire

Recommendation

 

Wire Speed

Select Wire Speed

 

 

Size

 

(Approx.)

(Amperage)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.023 in

3.5 in per ampere

3.5 x 125 A = 437 ipm

125 A based on 1/8 in

 

 

0.030 in

2 in per ampere

2 x 125 A = 250 ipm

material thickness

 

 

0.035 in

1.6 in per ampere

1.6 x 125 A = 200 ipm

 

 

 

 

 

 

 

 

 

 

 

ipm = inches per minute

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low voltage: wire stubs into work

Select Voltage

 

 

 

High voltage: arc is unstable (spatter)

 

 

 

 

 

 

 

Set voltage midway between high/low voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wire speed (amperage) controls weld penetration (wire speed = burn-off rate)

Voltage controls height and width of weld bead.

Ref. 803 441-C

OM-947 Page 33

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Hobart Welding Products OM-947 manual Typical Control Settings, Wire Size Amperage Range, Select Voltage
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OM-947 specifications

Hobart Welding Products has made a significant mark in the welding industry with its cutting-edge equipment, and the Hobart OM-947 is no exception. This multi-process welder stands out for its versatility and user-friendly design, ideal for both beginners and experienced welders alike.

One of the main features of the OM-947 is its multi-process capability, allowing users to perform MIG, TIG, and stick welding, all in one machine. This flexibility makes it an appealing choice for diverse welding applications, whether in automotive repair, metal fabrication, or industrial maintenance. The OM-947 can easily switch between processes, ensuring efficiency and convenience in various tasks.

The machine is engineered with advanced technology that enhances welding performance. Its inverter technology provides a stable arc and reduces energy consumption, which not only cuts down operational costs but also improves the welder's overall performance. The Hobart OM-947 boasts a high-duty cycle, allowing users to operate it for extended periods without overheating, making it suitable for professional environments.

In terms of characteristics, the OM-947 features a digital display that allows for precise control over welding parameters. This user-friendly interface simplifies the adjustment process, enabling welders to focus more on their craft rather than struggling with complex settings. The machine also comes with a built-in automatic voltage control, which adjusts the voltage according to the chosen process and material thickness, ensuring optimal welding conditions and reducing the risk of defects.

Another notable aspect of the OM-947 is its portability. Weighing in at a manageable level, coupled with a compact design, the machine is easy to transport between job sites, making it ideal for mobile welders. Furthermore, the rugged construction of the unit ensures durability even in demanding environments.

Safety features are paramount in welding equipment, and the Hobart OM-947 does not disappoint. It includes a thermal overload protection system that prevents overheating and potential damage to the welder, offering peace of mind during use.

Overall, the Hobart Welding Products OM-947 delivers impressive performance, versatility, and user-friendliness. It is designed for welders who demand quality and reliability from their equipment while being accessible enough for those who are just starting their welding journey. With its innovative features and robust design, the OM-947 truly sets a benchmark in the world of welding.