S998 Helmet
Characteristic:
Classical design, comfortable and convenient to use
High quality LCD and multilayer optical interference filter
Optical class 1/2/1/1
Convenient to use for welder
| S998 | S998N | S998C | |
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| Optical Class | 1/2/1/1 | ||
| Filter Size | 110x90 mm (4.33x3.54") | ||
| Viewing Area | 95x36 mm (3.74x1.42") | 98x43 mm (3.86x1.69") | |
| Arc Sensor | 2 | 2 | |
| Light State | 4 | 4 | |
| Dark State | Variable Shade 9-13 | ||
| Shade Control | External | ||
| Power On/Off | Fully automatic | ||
| Sensitivity Control | Low-High,External Stepless | Low-High,Internal Stepless | Low-High,External Stepless |
| Switching Time | 1/25,000s | 1/30,000s | |
| Delay Time | 0.25-0.8s, Internal Switch | 0.25-0.8s, Internal Stepless | 0.25-0.8s, Internal Switch |
| Grind | Internal | Internal | |
| Power Supply | Solar cell with lithium battery | ||
| UV/IR Protection | Up to shade 16 | ||
| Operating Temp. | -10°C~+55°C(14°F~131°F) | ||
| Storing Temp. | -20°C~+70°C(-4°F~158°F) | ||
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