ATEX & IECEx
ATEX is a directive for the use of Ex equipment in the European Union. The IECEx developed by the International Electrotechnical Commission (IEC) is an international cerification accepted in most countries intended to harmonise the standards of Ex equipment.
Interpretation of Zebra L10 Hazardous Approval
| Element | Rating | Explanation |
|---|---|---|
| Equipment Group | II | Used for above surface industries (non-mining) |
| Protection Category & Atmosphere | 3G 3D |
Category 3G is the equivalent of Zone 2 (Gas) Category 3D is the equivalent of Zone 22 (Dust) This category represents an atmosphere where flammable substances is not likely to occur in normal operations but if it does, will persist for a short period only. |
| Type of protection | ec tc |
Increased safety (for Gas) Enclosure (for Dust) |
| Gas Explosion Group Dust Explosion Group |
IIC IIIB |
Most ignitable (ie. Hydrogen, Acetylene) Most conductive (ie. Metal dust) |
| Temperature Class | T6 | T6 certification allows a maximum permissible surface temperature of 85°C therefore a T6 instrument can be used in T5, T4, T3, T2 and T1 environment |
| Surface Temperature (Dust) | T= 85 °C | Maximum surface temperature of 85°C with tested dust layer |
| Equipment Protection Level | Gc Dc |
Gc: protection for Zone 2 (Gas) Dc: protection for Zone 22 (Dust) |