How to choose the smoke detector for residential school retirement homes is the key

(1) In the early stage of a fire, there is a flame retardant stage, which produces a large amount of smoke and a small amount of heat. In locations with little or no flame radiation, smoke detectors should be selected.
(2) For locations where fires develop rapidly and where large amounts of heat, smoke, and flame radiation can be generated, smoke detectors, flame detectors, image detectors, or combinations thereof may be selected.
(3) For the rapid development of fire, there are strong flame radiation and a small amount of smoke, hot place, should choose the flame detector or image detection.
(4) For special sites requiring early detection of fire, high-sensitivity aspirating smoke detectors should be selected, and the sensitivity of the detector should be set to a high-sensitivity state; it can also be based on the actual analysis of early detection of the site Select the appropriate detector for the fire parameters.
(5) For unpredictable locations where fire formation is unpredictable, multiple combinations of detectors may be selected based on actual conditions.

Chlorophyll Analyzer

Water quality chlorophyll content refers to the concentration of chlorophyll in water. Chlorophyll is a green biopigment that widely exists in plants, algae and some protists and is a key molecule in photosynthesis. The chlorophyll content in the water body can reflect the biomass in the water body and the health of the ecosystem. High chlorophyll content usually indicates eutrophication of the water body and may lead to eutrophication phenomena such as cyanobacterial blooms and hypoxia. The online chlorophyll analyzer adopts the advanced principle of fluorescence method, which can reduce the influence of stray light and has excellent repeatability and stability. RS485 digital interface, supports Modbus protocol, the Chlorophyll Sensor adopts an environmentally friendly design, with an automatic cleaning brush, and the cleaning time and interval can be set on the Chlorophyll Controller. Chlorophyll analyzers are of great significance to the protection of water environments and ecosystems. Daruifuno online chlorophyll meter is used for measuring the chlorophyll a in water, it is widely use for surface water monitoring.

chlorophyll analyzer

Chlorophyll Analyzer,Chlorophyll Meter,Fluorescence Sensor,Chlorophyll A Sensor

Suzhou Delfino Environmental Technology Co., Ltd. , https://www.daruifuno.com