Triple IR Optical Detector

The Triple IR Optical Detector detects the fireball created when ammunition penetrates armor within 3 milliseconds, before pressure and heat reach destructive levels. Upon detection, it immediately transmits an alarm signal to the vehicle or system control unit, enabling rapid fire suppression response in platforms exposed to RPG and ATGM threats.

Using three independent infrared (IR) wavelength bands, the detector analyzes heat and light signatures at different frequencies. An alarm is generated only when all three IR sensors simultaneously confirm a flame signature, ensuring precise detection and superior false-alarm rejection.

The detector is designed by Nero Industries engineers in accordance with NATO STANAG 4317 and MIL-PRF-62546C standards and has successfully passed extensive environmental testing.

The primary purpose of a Triple IR Optical Detector is early and accurate fire detection in environments where conventional flame or smoke detectors may be ineffective.

By evaluating multiple infrared wavelengths, the detector can:

• Identify genuine flame signatures

• Distinguish fire from non-fire heat sources

• Enable rapid intervention before fire escalation

This makes triple IR technology particularly suitable for high-risk industrial, military, and energy-sector applications.

Triple IR Optical Detectors are designed to meet IP67 protection standards, allowing them to remain submerged under 1 meter of water for up to 30 minutes.

They also feature advanced false-alarm immunity, ensuring no reaction to:

• Sunlight and solar fluctuations

• Vehicle headlights

• Welding arcs

• Infrared heaters

• Cigarette ash

These detectors actively protect engines and crews across armored vehicles, electric vehicles, buses, aircraft, jet aircraft, ships, and industrial facilities. To date, over 40,000 detectors are successfully operating in the field.

Triple IR optical detectors are widely used in fire detection systems across multiple sectors, including:

• Armored and military vehicles

• Industrial facilities and warehouses

• Oil refineries and petrochemical plants

• Offshore platforms and pipelines

• Marine vessels and shipboard systems

• Aircraft and aviation platforms

• Commercial buildings and large infrastructures

They are especially effective in high-ceilinged, open, and harsh environments where fast and reliable flame detection is essential.

Triple IR optical detectors are available in several configurations depending on system requirements:

Conventional Triple IR Detectors
Standard fire detection for industrial and commercial applications.

Microprocessor-Controlled Triple IR Detectors
Enhanced sensitivity and advanced signal processing for high-risk facilities.

Addressable Triple IR Detectors
Used in large systems where precise detector identification is required.

Linear Triple IR Detectors
Designed for long-distance fire detection and fire location identification.

Multi-Sensor Triple IR Detectors
Combined with secondary sensors for increased detection accuracy.

• Triple-Wavelength IR Detection: IR1 (4.5–5.5 μm), IR2 (3.0–3.6 μm), IR3 (0.8–1.2 μm)

• Ultra-Fast Response Time: Millisecond-level fire detection

• High Sensitivity: Detects small and low-intensity flames

• Wide Coverage Area: Large volumetric detection cone

• Low False Alarm Rate: All three IR sensors must confirm flame presence

• Durable Construction: Designed for harsh environmental conditions

• Easy Installation: Suitable for diverse applications

The detector uses ultra-fast semiconductor IR quantum sensors and two high-performance microprocessors, supported by advanced software algorithms to maximize detection accuracy and reliability.

• Detection Range: Over 60 meters in high-sensitivity mode

• Fire Reference: Detects a 0.1 m² heptane fire within seconds

• Communication: ModBus RS-485, analog output, and relay interfaces

• Visual Indicators:

  • Green – Energized

  • Red – Alarm

  • Yellow – Fault/Error

The volumetric coverage of the detector is significantly higher than many conventional IR3 detectors on the market.

• Suitable for hydrocarbon fires (petrol, methane, diesel, LPG)

• Effective for paper, wood, and solvent fires

• Strong immunity to arc welding, heat radiation, and sunlight

• FM Approved, ATEX Certified, CE Marked

• Compliant with SIL 2 safety requirements

• Oil refineries and processing facilities

• Offshore platforms and oil & gas pipelines

• LNG / LPG loading and unloading stations

• Ethanol and methanol storage facilities

• Paint and solvent storage areas

Triple IR Optical Detectors are tested and evaluated according to internationally recognized standards, including:

• EN 54-22 – European fire alarm systems

• UL 268 – Fire detection performance testing

• FM Approval Standards – Industrial fire protection

• ISO 7240-24 – International fire detection systems

These standards ensure detector reliability, environmental durability, and performance accuracy.

Triple IR optical detectors continuously monitor infrared radiation across multiple wavelengths to detect fire at the earliest possible stage.

Their core functions include:

• Early flame detection

• Rapid alarm signaling

• Reduction of false alarms

• Protection of personnel, equipment, and infrastructure

They are an essential component of modern fire detection systems in industrial, military, and energy-sector applications.