Technical Parameters
| Model | IFD2020 Triple Infrared Flame Detector |
| Sensor | Infrared flame sensor |
| Response spectral range | 4.3μm, 5.0μm |
| Sampling mode | Real-time optical path sampling |
| Display mode | LED indication |
| Status indication | Blinking green lamp (normal); Permanently-illuminated red lamp (fire alarm). |
| Response time |
Level I: 6-8s | Level II: 18-22s Level III: 22-26s | Level IV: 3-4s |
| Output signal |
4-20mA current; Faulty relay passive output (AC:3A 250V, DC:3A 30V) Fire alarm relay passive output (AC:3A 250V, DC:3A 30V) |
| Operating voltage | DC18-30V |
| Operating current | ≤30mA(DC24V) |
| Maximum detection distance | 50m (0.3m x 0.3m n-heptane flame) |
| Operating Environment | Temp: -40~+70°C | Humidity: ≤95%RH |
| Detection angle | 90° |
| Explosion-proof mark | Ex db IIC T6 Gb / Ex tb IIIC T80°C Db |
| Degree of protection | IP66 |
| Physical Specs | Shell: Aluminum alloy | Weight: 0.6Kg±0.05Kg | Interface: M20X1.5 |
Description
The IFD20 triple infrared flame detector is a new-type intelligent fire detection equipment utilizing Multi-Infrared Sensing Technology (MIR). Equipped with three infrared sensors of different wavelengths and narrow-band filtering, it accurately identifies flame characteristics while suppressing environmental interference such as sunlight, lightning, electric welding, and thermal radiation. Powered by a high-speed microprocessor and advanced technical algorithms, it ensures rapid response and reliable fire identification.
Product Characteristics
High measurement accuracy and stable performance with long service life.
4~20mA standard analog signal and relay node outputs (Fault/Alarm).
Low false alarm rate based on actual flame combustion models.
Magnetic rod sensitivity adjustment—no need to remove the cap.
Special optical lens for reliable path transmission and LED status display.
Simple mounting bracket design for easy installation and maintenance.
Frequently Asked Questions
1. What is the maximum detection range of the IFD2020?
The detector can detect a 0.3m x 0.3m n-heptane flame at a maximum distance of 50 meters with a 90° detection angle.
2. How does the triple infrared technology prevent false alarms?
It uses three sensors with different wavelengths (4.3μm and 5.0μm). One identifies the flame's central wavelength, while others monitor environmental radiation. This allows the system to filter out interference like sunlight, welding, and lightning.
3. Is the detector suitable for harsh industrial environments?
Yes. It features an IP66 protection rating, an aluminum alloy shell, and is explosion-proof (Ex db IIC T6 Gb). It operates reliably between -40°C and +70°C.
4. Do I need to open the device to adjust sensitivity?
No, the IFD2020 is designed for convenience; you can use a magnetic rod to adjust sensitivity settings without removing the device's cap.
5. What are the different response time levels?
The detector offers four response levels: Level IV is the fastest (3-4 seconds), followed by Level I (6-8s), Level II (18-22s), and Level III (22-26s).
6. What types of output signals are supported?
It provides a standard 4-20mA analog signal and two passive relay outputs for both Fault and Fire Alarm conditions.