Free Engineering Tool
Ex Marking Decoder
Enter any IEC 60079 / ATEX Ex marking string to decode protection type, gas group, temperature class, EPL, and zone suitability.
Decoded Marking
Protection Types
| Code | Method | IEC Standard | Typical Zone |
|---|---|---|---|
| d | Flameproof enclosure | IEC 60079-1 | Zone 1, 2 |
| e | Increased safety | IEC 60079-7 | Zone 1, 2 |
| ia | Intrinsic safety (level a) | IEC 60079-11 | Zone 0, 1, 2 |
| ib | Intrinsic safety (level b) | IEC 60079-11 | Zone 1, 2 |
| ic | Intrinsic safety (level c) | IEC 60079-11 | Zone 2 |
| p/px/py/pz | Pressurized enclosure | IEC 60079-2 | Zone 1, 2 |
| m/ma/mb | Encapsulation | IEC 60079-18 | Zone 0, 1, 2 |
| nA/nC/nR | Non-sparking / Type n | IEC 60079-15 | Zone 2 |
| o | Oil immersion | IEC 60079-6 | Zone 1, 2 |
| q | Powder filling | IEC 60079-5 | Zone 1, 2 |
| t/ta/tb/tc | Protection by enclosure (dust) | IEC 60079-31 | Zone 20/21/22 |
Temperature Classes
| Class | Max Surface Temp (°C) | Typical Gases |
|---|---|---|
| T1 | 450 | Hydrogen, methane, propane |
| T2 | 300 | Ethanol, butane, acetone |
| T3 | 200 | Gasoline, hydrogen sulfide, diesel |
| T4 | 135 | Acetaldehyde, diethyl ether |
| T5 | 100 | — |
| T6 | 85 | Carbon disulfide |
Vibration analysis instruments suitable for hazardous areas. Professional field balancing in Ex zones.
Nikolai Shelkovenko
Nikolai Shelkovenko is a vibration analysis engineer and the founder and CEO of Vibromera. For more than 15 years he has balanced rotating equipment in the field rather than on a test bench: mulchers, industrial fans, crushers, centrifuges, shafts and spindles. That work is what the Balanset instruments grew out of — they were designed as a tool a specialist can carry to the machine and use alone, on site, not as laboratory equipment. Vibromera was founded in 2017 and has been based in Porto, Portugal, since 2023. Development, assembly and support of the Balanset line all happen here. The flagship instrument is the Balanset-1A, a portable analyser for single- and two-plane balancing and for vibration diagnostics. Nikolai is personally involved in customer support, in working through difficult balancing cases and in the development of the software. He works with customers worldwide, in any language.
