The pyroelectric effect that our devices exploit is particularly effective at flame detection, that effect harnessed by our unique patented technology delivers a flame detection sensor range with exceptional responsivity and range, enabling the development of market leading flame detection systems.
We offer flame detection across our entire range, in either an SMD or TO-39 packaged devices and with a digital or analogue output. These different form factors offer different strengths: ezPyro TO offers best sensitivity and range, and faster development in the digital ecosystem; ezPyro SMD offers smallest footprint and is most cost-effective; Both ezPyro products are integrated systems offering minimum component count. Analog TO offers optimum performance and instand start-up in a traditional analog environment. All systems offer class-leading speed and fast start-up. Demonstrated ranges with no extra optics range from 35m to 90+m depending on test conditions.
By also offering companion sensors to the main flame detecting sensor it is possible to refine a flame detection system to operate in challenging environments such as in high-levels of human motion, sunlight and arc welding, enabling a reliable system tuned to reject false positives.
Hybrid IR3 Flame detector using Pyreos TO and ezPyro
| Digital ezPyro IR | Analog IR | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Use | Wavelength (µm) | FWHM (nm) | Single SMD | 2x2 SMD | TO39 | Single TO39 | Dual TO39 | Quad TO39 | Linear IR Array |
Broadband for bespoke filters |
2.2 | LP | ePY12121 | PY2749 | |||||
CO2 Optimised for max centreline sensitivity |
4.35 | 600 | PY0573 | ||||||
CO2 Optimised for uniform sensitivity across FoV |
4.48 | 620 | ePY12251 | ePR44252 | PY1600 | ||||
CO2 Optimised for wide FoV |
4.55 | 420 | ePR44282 | PY0574 | |||||
CO2 Optimised for wide FoV |
4.64 | 180 | ePY12241 | ||||||
H2O water vapour (hydrogen flame, HC flame) |
2.72 | 200 | ePR44292 | PY2712 | |||||
LP Human Motion Rejection |
5 | LP | ePR44112 | PY1601 | |||||
LP Human Motion Rejection |
5.5 | LP | PY0576 | ||||||
Welding/sunlight rejection |
3.38 | 190 | PY1580 | ||||||
Welding/sunlight rejection |
3.91 | 90 | ePY12211 | ePR44212 | PY0575 | ||||
How to choose between different Pyreos flame products
| Integrated Digital ezPyro System – single SMD | Integrated Digital ezPyro System – single TO39 | Analog single TO39 | ||
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| Package | SMD (5.65 x 3.70 x 1.55 mm2) | TO-39 | TO-39 | |
| Output | Digital I2C | Digital I2C | Analog | |
| Integration | Configurable amplifier & filters, ADC | Configurable amplifier & filters, ADC | OpAmp | |
| Sensitive area | 0.64 x 0.64 mm2 | 1.00 x 1.00 mm2 | 1.00 x 1.00 mm2 | |
| Aperture | 1.65 mm ⌀ | 5.2 x 4.2 mm2 | 5.2 x 4.2 mm2 | |
| Time constant (10-20 Hz peak) | 10 ms | 10 ms | 12 ms | |
| Specific Detectivity – D* (cm√Hz/W @10Hz/500K) | 2.5 x 108 | 4.8 x 108 | 3.5 x 108 | |
| Field of View | 90 ° | 110 ° | 110 ° | |
| Range (system dependent) *demonstrated in certification environment | 40 m | 85 m* | 65 m | |
| Supply current | 1 – 23 μA | 3.5 – 23 μA | 65 μA | |
| Power saving modes | ✔️ | ✔️ | – | |
| Configurability | ✔️ | ✔️ | – | |
| Sensor-to-sensor synchronization | ✔️ | – | – | |
| Wake-up by signal | ✔️ | – | – | |