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    • Home
    • Environmental Sensors
      • Humidity Sensors
        • Digital Humidity Sensor SHT4x (RH/T)
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        • SF2 Filter Cap
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      • Formaldehyde Sensor SFA30

        Formaldehyde Sensing Made Easy

        The SFA30 is Sensirion’s new digital formaldehyde sensor designed for easy integration into air purifiers, demand-controlled ventilation systems, or indoor air quality monitors. Based on Sensirion’s electrochemical technology, the SFA30 offers excellent formaldehyde sensing performance with a uniquely low cross-sensitivity to other VOCs. The sensor module’s on-board SHT sensor provides accurate humidity and temperature readings and enables a fully temperature/humidity compensated and factory calibrated formaldehyde concentration output in ppb.

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          • Liquid Flow Meter SLQ-QT105
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          • Liquid Flow Meter SLS-1500
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      • Evaluation Kit SEK-Flow Sensing
      • Product Highlight

        Evaluation kit for the single-use liquid flow sensor LD20-2600B

        The LD20-2600B single-use liquid flow sensor for fast, precise and reliable measurements of the lowest flow rates in biomedical applications was successfully launched three years ago. The evaluation kit for this OEM liquid flow sensor can now also be purchased online via Sensirion's distribution network.

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        Experts for Smart Sensor Solutions

        Sensirion's sensors are used in a wide range of markets and different applications. Our high-quality environmental and flow sensors and sensor solutions improve energy efficiency and sustainability. They increase our safety, support our health and raise the quality of life. 

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        Founded in 1998 Sensirion has become the leading manufacturer of flow and environmental sensors solutions. The company now employs people in various countries such as the USA, South Korea, Japan, China, Taiwan, and Germany. The headquarters in Switzerland is responsible for research, development, and production. 

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    • Flow Sensors
    • Differential Pressure Sensors
    • Differential Pressure Sensors SDP800 Series

    Differential Pressure Sensors SDP800 Series

    SDP800 – Proven and Improved

    Differential pressure sensors of the SDP800 series are the reliable solution for precise air flow measurement in most demanding but cost-sensitive HVAC applications, such as VAV controllers, burners, heat recovery systems and filter monitoring.

    The SDP800 differential pressure sensors are based on the next generation of the CMOSens® sensor chip and consequently utilize the successful features of the SDP600 series. They are the result of more than 15 years of experience in measuring air flow in tens of millions of patients, car engines and HVAC systems. The sensors of the SDP800 series can easily be integrated due to their proven form factor. This next-generation sensor chip offers extended functionality, smart averaging functions and multiple measurement modes. Like all Sensirion differential pressure sensors, those from the SDP800 series are characterized by their outstanding accuracy and long-term stability, together with no zero-point drift.  

    Different Configurations

    • Manifold or tube connection
    • 125 Pa or 500 Pa
    • Digital (I2C) or analog output


    The digital version is highly versatile and features adaptable measurement speeds of up to 2 kHz, multiple measurement modes (triggered / continuous mode) and smart averaging functions. The version with analog ratiometric voltage output is configurable to either linear or square root by a separate pin. While the SDP80x is intended for a direct threaded connection to a pressure manifold via O-ring sealing, the SDP81x is designed for a tube connection.

    Like all of Sensirion’s differential pressure sensors, the SDP800 series is based on Sensirion’s patented CMOSens® Technology, which combines the sensor element, signal processing and digital calibration on a small CMOS chip. The differential pressure is measured by a thermal sensor element using the flow-through principle. Thanks to this, Sensirion’s CMOSens® differential pressure sensors outperform traditional piezo-resistive membrane sensors in terms of sensitivity at low differential pressures, offset drift and hysteresis as well as position sensitivity, shock resistance and temperature variations. 


    Features

    • No offset, no zero-point drift, hysteresis free
    • Outstanding accuracy and long-term stability
    • Pressure range of up to ±500 Pa (±2 inch H2O / ±5 mbar)
    • Excellent accuracy and repeatability (even below 1 Pa)
    • Fully calibrated and temperature compensated (-20° C to +85° C)
    • For air and non-aggressive gases
    • Suited for standard wave soldering

    Applications

    • HVAC (heating, ventilation, air conditioning)
    • Gas boilers, pellet stoves and fuel cells
    • Filter Monitoring
    • VAV control
    • Heat recovery
    • Medical (e.g. respiratory devices)

    Download Image

    Download Center

    Here you can find all documents of Sensirion's differential pressure sensors for download.


    The SDP800 Series

    Depending on your specific requirements, you can choose between different sensor versions. The individual characteristics are displayed below:

     SDP800 - 500 PaSDP810 - 500 PaSDP800 - 125 PaSDP810 - 125 PaSDP806 - 500 PaSDP816 - 500 PaSDP806 - 125 PaSDP816 - 125 Pa
    Output

    I2C
    (second I2C addresses available, see datasheet)

    I2CAnalog
    Pneumatic ConnectionManifoldTubeManifoldTubeManifoldTubeManifoldTube
    Pressure range (bidirectional)

    500 Pa
    2" H2O

    125 Pa
    0.5" H2O

    500 Pa
    2" H2O

    125 Pa
    0.5" H2O

    Key featuresProven form factor with best performanceRobust and accurate with analog output
    Power supply3 to 5.5 V
    Accuracy of measured value3%
    Lowest detectable pressure< 0.02 Pa< 0.01 Pa< 0.02 Pa< 0.01 Pa
    Measurement speed0.5 ms5 ms
    Calibrated forAir, N2
    Gas compatibilityAir, inert gases
    • Table Overview Differential Pressure Sensor SDP800

    Honeywell Wins "VAV Controller of the Year"

    A key player in the building automation market, Honeywell, won the award "VAV Controller of the Year". With Sensirions integrated and market-leading differential pressure sensor SDP8xx, the controller is able to measure small pressures very accurately without the sensor drifting over time. This is essential in order to vary the airflow at a constant temperature and therefore supply a precise temperature control, reduced compressor wear, lower energy consumption by system fans, less fan noise and additional passive dehumidification.

    Read more


    Differential Pressure Sensor SDP800


    Related Products

    Sensirion Differential Pressure EK-P5

    Evaluation Kit EK-P5

    The evaluation kit EK-P5 provides a straightforward and cost-effective option for testing and evaluation of Sensirion's digital differential pressure sensors of the SDP800 series.

    Sensirion Differential Pressure Sensors SDP3x

    Differential Pressure Sensor SDP3x

    The SDP3x differential pressure sensor measures just 5mm x 8mm x 5mm, opening up new dimensions of integration and applications possibilities. It features excellent accuracy and long-term stability.

    Technical Documents

    • Whitepaper Efficient Gas Flow Measurements in Bypass
    • Datasheet SDP800 Series Digital
    • Datasheet SDP800 Series Analog
    • Datasheet SDP800 Series Cap
    • Selection Guide DP
    • Handling Instructions SDP800 Series
    • Sample Code SDP800 Series
    • Calibration Certification SDP8xx

    Markets

    • sdp800
    • Medical
    • Automotive
    • Industrial
    • Consumer

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