Very Early Smoke Detection Apparatu
High-sensitivity air intake sensing
| VESDA VESDA Laser Focus (VLF-250) | |||
|---|---|---|---|
| Type approval 11-30 (Analog type, 1 air intake input, air pipe maximum length 25m) | |||
| Surrounding temperature |
0 ~ 39℃ | color | Gray |
| Relative humidity | 0 ~ 95% | Size | 225(W) X 185(H) X 90(D)mm |
| Rated voltage | DC 24V | IP rating | 30 |
| Current consumption | surveillance 250mA / alert 295mA | Weight | 2.0kg |
| Sensing method | method where the air intake pipe sucks in smoke particles, and measures how much light is scattered at the laser chamber) | Attached materials | VSP-005(Filter) |
| Range of sensitivity | 0.025 ~ 20% obs/m | Threshold value set range |
alert, action 0.025% ~ 2.00% obs/m Fire1, Fire2 0.025% ~ 20.00% obs/m |
※ VLF-250 / Laser Focus Detector can install one air intake pipe. (Two pieces are possible through the accessory material)
Real-time measurement of "current smoke concentration in the air" using a pipe network "Active" early detection of signs of fire Early detection of smoke.
| Comparing VESDA and existing fire detectors | |||
|---|---|---|---|
| Division | Existing fire detector |  |
|
| General detector | Analog detector | ||
| Sensitivity (%/m) | 4 to 10 (% / m) | 3 to 8 (% / m) | 0.005 (% / m) |
| Fine smoke detection | X | X | X |
| Alarm classification | Simple alarm | Multi-level (2) Alarm | Multi-level (3 ~ 4) Alarm |
| Data Management | No function | No function Data storage Data storage, transmission | Data storage, transmission |
| Environmental conditions (high / low temperature) | Influence | Influence | Influence Influence Influence Influence |
| Equipment life | 5 to 10 years | 5 to 10 years | More than 10 years |
| Fire Alarm Point | General Location: Fire Progress Stage | General Places: Fire Progress Stage | General Places: Early Stage of Fire |
| Air-conditioning system: Fire spreading stage | Air-conditioning system: Fire spreading stage | Air-conditioning system: Early stage of fire | |
| Maintenance | 5 ~ 10 years | Failure check failure | Failure Self diagnosis |
| Automatic environment calibration technology | X | X | Notify operator of dust, humidity, air flow, etc. |
| Adjust sensitivity depending on environment | X | X | Adjustment of random sensitivity according to the application place of clean room, factory, etc. |
| Adjust sensitivity depending on environment | X | X | Sensitivity can be set according to day / night environment |
