Antra True Color Huge Viewing, Super Wide Shade Range 4/5-14 Auto Darkening Welding Helmet A77D, for TIG, MIG/MAG, MMA, Plasma, Grinding, Solar Power w Lithium Backup, 6+1 Extra lens covers

Bigger is at all times better

More covering area, better viewing angle, more flexible

• Luxury viewing size of 12.5 SQI provides comfort working zone, almost doubled when compared to entry level lens
• Easy to access awkward spots with smaller viewing size helmets

True Color Lens with 4 corner-spread sensors

Clearer welding puddles and pools, more sensitive and flexible sensor arrays

• Blue light reduction lens (Optical Class 1/1/1/2) provides clear viewing and blue light protection, and helps to lay solid beads.
• More covered area than 2-sensor or in-line 4 sensor design.
• Quicker response time and more flexible when used in applications with partially blocked view.

One helmet , multiple processes

Versatility is another great asset of A77D along with its reliable performance

This unit is working on most of ARC related applications including but not limited to:

• Gas Tungsten Arc Welding (GTAW), often referred to as Tungsten Inert Gas (TIG) welding, DC or AC
• Gas Metal Arc Welding (GMAW), once in a while referred to by its sub-types Metal Inert Gas (MIG) Welding or Metal Active Gas (MAG) welding
• Flux-cored Arc Welding (FCAW or FCA)
• Shielded Metal Arc Welding (SMAW), often referred to as Manual Metal Arc welding (MMA or MMAW), flux shielded arc welding (stick welding)
• Plasma Cutting (PAC)
• Plasma Arc Welding (PAW)
• Grinding

(Note: Different settings may be required for each application.)

Antra’s Interference Suppression Technologies enables A77D to:

• Detects and response consistently on DC welding arc as little as 2 Amps
• Minimize false triggering in industrial Metal-halide lights, on higher sensitivity setting if not facing lights directly
• Minimize false triggering in sun lights, on higher sensitivity if not facing sun directly

Easy to adjust settings

• SHADE 14 Capability: According to OSHA Fact Sheet Shade 14 is recommended by ANSI and AWS for the following applications: – SMAW (MMA): >250A

– GMAW (MIG), FCAW: >250A

– GTAW (TIG): >150A

More often than not of thumb, start with a shade that is too dark to see the weld zone. Then, go to a lighter shade which gives a sufficient view of the weld zone without going below the minimum. Shade 14 is great to start especially for young people who have more sensitive eyes.

• Grinding Mode: Set the switch to Grind, the lens will stay on shade 4, will not be activated by any arc.

WARNING: Switch “Weld” mode to avoid accidental flashes.

• Shade Adjustment: First set the SHADE RANGE the use of the range selector switch, “5-9” or “9-14”, then use the Shade dial to set the desired shade numbers.
• Delay Regulate: Dark to Clear Delay, to avoid glow flashes from the hot bead. Turn clockwise, the delay time will be increased.
• Sensitivity Regulate: Controls how sensitive the sensors are responding to welding arc. Proper setting can avoid false triggering from adjacent arc even as ensures auto darkening when needed. Turn clockwise, the sensitivity will be increased. Set the sensitivity highest, and decrease if there false triggering exists.
• All internal settings is great for people who want to work in limited spaces