Ex-Proof Signaling Equipment
Ex-tech Sounders & Beacons, Manual Call Points, Audible & Combination Devices
Ex-tech Signalling manufactures ATEX/IECEx compliant signaling products to high quality and international engineering standards. We take full responsibility for every product's design process, material selection, assembly, testing, and certification. Our customers can be fully confident that our high-performance products offer exceptional longevity and are strictly fit for purpose in any hazardous area location, industrial, or marine application.
Ex-tech Signalling: ATEX & IECEx Certified Warning and Alarm Solutions for Hazardous Areas
Ex-tech Signalling Products | ATEX & IECEx Ex-Proof Warning Systems.
Description: Discover Ex-tech Signalling's ATEX and IECEx certified ex-proof sirens, flashing lights, combined units, and fire alarm buttons. SIL2 approved industrial safety solutions for hazardous areas.
In industrial facilities, ensuring the safety of personnel in hazardous areas with explosion risks and immediately reporting potential emergencies is a legal and operational requirement.
UK-based Ex-tech Signalling offers reliable solutions globally with its ATEX, IECEx, and SIL2 certified audible and visual warning systems developed for challenging environmental conditions and explosive atmospheres (Zone 1, Zone 2, Zone 21, Zone 22). Manufactured with stainless steel (316L) and corrosion-resistant GRP (Glass Fiber Reinforced Polyester) housing options, Ex-tech Signalling equipment provides uninterrupted performance in fire, gas leak, and emergency shutdown processes.
Featured Ex-tech Signalling Product Groups; Product Group, Featured Models, Intended Use, Key Technical Specifications;
Ex-Proof Visual Warning (Beacons) BC125 (316L), BC150 (GRP), SL125 / SL150
Visually transmit process status and evacuation alarms with signals from gas detection or fire panels.
UV/chemical resistant lenses, LED/Xenon flash modes, low energy consumption.
Ex-Proof Audible Warning (Sounders / Horns) SD125, SD150
Audible evacuation warning in heavy industrial and offshore platforms with high background noise. 115+ dB sound power, field selectable warning tones, IP66/IP67 full sealing.
Combi Units SB125, SB150, SB150-1
Reducing wiring and labor costs by combining audible and visual warnings at a single mounting point.
Independently controllable sound and light channels, compact housing architecture.
Fire Alarm Buttons (Call Points) CP125/150 (Break Glass), PB125/135/150 (Push Button)
Manual triggering of the system by personnel in emergencies (Fire, ESD - Emergency Shutdown).
Protective covers preventing false alarms, easily resettable mechanism.
Areas of Use and Application;
Designed for flammable gas, vapor and dust environments where sparks or surface temperature may cause an explosion:
Oil & Gas: Refineries, FPSO units, offshore platforms, and loading terminals.
Chemistry and Petrochemicals: Process control areas, solvent storage areas, and reactor surroundings.
Marine: Ship engine rooms, LNG/LPG tankers, and chemical cargo areas.
Hydrogen & Renewable Energy: Hydrogen production plants, electrolyzer sites, and battery storage centers (BESS).
Pharmaceutical and Paint Industry: Production lines containing volatile chemicals and explosive dusts.
What is an Ex-Proof Siren and Why is it Mandatory?
Ex-proof (Explosion-proof) refers to a protective structure that prevents arcs, sparks, or high temperatures originating from electrical components inside the device from igniting flammable gas or dust clouds in the environment.
In environments where standard warning devices can become ignition sources by producing electric arcs, they completely eliminate the risk of explosion thanks to their pressure-resistant armored bodies and special flameproof channels.
Hazardous Area Zone Classification and Selection Criteria;
Zone Class, Definition and Risk Level, Required Protection Type;
Zone 0 / 20 Continuous or prolonged risk of explosive atmosphere. Device installation is generally not recommended or is extremely limited.
Zone 1 / 21 Periodic risk of explosive atmosphere under normal operating conditions (e.g. filling stations, pump rooms). Ex d (Flameproof) or Ex e (Enhanced Safety) is mandatory.
Zone 2 / 22 Areas where there is no risk of explosion under normal operating conditions, or if one occurs, it is short-lived (e.g. pipelines, open storage). Ex nR, Ex ec or higher standards (all Zone 1 certified devices can be used).
Four Critical Factors in Choosing the Right Siren:
Protection Type (Ex d vs. Ex e): For Zone 1 areas, Ex d (Flameproof) housings that cool the internal explosion without leaking out should be preferred.
Acoustic Power (dB): The siren sound should be at least 10-15 dB louder than the ambient background noise (105–125 dB levels are suitable for heavy industry).
Temperature Class (T Class): The correct label should be selected from T1 to T6 according to the gas's spontaneous ignition temperature (Common standards: T4 / T6).
Cable Entries and Glands: For protection integrity, ATEX certified explosion-proof cable glands must be used at the housing entries.
How to Read ATEX Codes?
II: For use in non-mining surface industrial facilities (Group II).
2G: Category 2 (Suitable for Zone 1, G = Gas environment).
Ex db: Flameproof Enclosure type.
IIC: Covers the most dangerous gas group (Hydrogen, Acetylene, etc.);
Also valid in IIA and IIB environments.
T6: Guarantees that the maximum surface temperature of the device will not exceed 85°C.
Gb: Equipment Protection Level (EPL - High protection level).
Frequently Asked Questions (FAQ);
What is an Ex-proof siren and how does it differ from standard sirens?
An Ex-proof siren is a certified device that prevents an electrical arc or spark operating in explosive environments from igniting the gas/dust cloud outside.
Unlike standard sirens, they feature a flameproof (Ex d) or enhanced safety (Ex e) pressure-resistant housing architecture and international ATEX/IECEx approvals.
Which models should be preferred in Zone 1 and Zone 2 areas? In Zone 1 areas with periodic risks, flameproof "Ex d" or "Ex e" protection types are mandatory.
In Zone 2 areas, in addition to Zone 1 approved devices, "Ex nR" or "Ex ec" class equipment can be preferred. A device manufactured for Zone 2 cannot be installed in Zone 1 areas under any circumstances.
When choosing an explosion-proof siren, how is the sound level (dB) determined?
For the alarm sound to be clearly audible, it must be at least 10 to 15 dB louder than the background noise in the area. In facilities with high machine noise, multi-tone sirens adjustable between 110 dB and 125 dB are used.
Can standard cable glands be used in the installation of an explosion-proof siren?
No. To maintain the integrity of the housing, it is a legal and technical requirement that cable entries also be sealed with ATEX-certified explosion-proof glands suitable for the relevant Zone and gas group.
Contact information
MEPTİME ELEKTROMEKANİK MÜH. SAN. TİC. LTD. ŞTİ
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Ares Fire Systems
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e-posta / e-mail :
info@aresfiresystems.com
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+90 850 225 02 68
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+90 530 257 27 27
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