LEFOO LFM208 residual pressure sensor is a high-precision product developed specifically for differential pressure control of smoke control systems in high-rise buildings. The core pressure measuring element adopts the US SM differential pressure chip. After zero, full scale and temperature compensation, the residual pressure sensor has high accuracy and good stability to fully meet the differential pressure control requirements of the positive pressure system, the product itself with green status indicator and red pressure alarm indicator. The product adopts 24 V DC power supply safety special low voltage power supply: using optional two bus way or 485 communication way, wiring simple, cost saving product appearance size is 86 * 86 * 38. This product is mainly for positive pressure air supply system elevator front room and stairwell special, product action pressure and reset pressure factory has been set before, the site does not need to set the site, greatly improve the control accuracy of the product, while greatly reducing the construction workload of the site is mainly used for elevator front room, shared front room, closed refuge, stairwell, smoke stairwell differential pressure measurement and control system; can also be used for indoor and outdoor differential pressure detection It can also be used in the differential pressure measurement and control system of dry gas such as filter blockage monitoring system.
Features
* Adopt imported MEMS pressure sensor parts
* Support 86 boxes embedded installation
* Two kinds of communication methods can be selected
* Fully meet the national standard "Technical Specification for Building Smoke Prevention and Exhaust System"
* Pressure monitoring of elevator front rooms and stairwells of high-rise buildings, shopping malls, hospitals and other public places
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