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    Ultrasonic flowmeter without display

    Type 8081 / Ident No. 560613

    Produkt-Foto Typ 8081

    The depiction of the products may differ from the actual specific design.

    • Produkt-Foto Typ 8081
    • Produkt-Foto Typ 8081
    • Massbild
    • Massbild
    • Massbild
    • Massbild

    Flow sensor without display

    • Ultrasonic flow meter using transit time method
    • Dynamic range ≥ 1:250
    • Low pressure drop
    • No flow-settling section necessary in the inlet and/or outlet

    For selecting the correct product please refer to the technical data, images and notes for proper use according to the data sheet.

    Product description

    The Type 8081 ultrasonic flow sensor is intended for the measurement of water flows which may be slightly charged with contaminants. It consists of an electronic module and a brass fitting with a built-in measuring tube. It enables a control loop to be established. The electrical connection is made via an 5-pin M12 fixed connector. The sensor features, depending on the version:- a pulse output or- a pulse output and a 4-20 mA current output. Each version is available for 5 flow ranges:- model QN 0.6 DN15: 0.06 to 20 l/min (nominal flow rate 0.6 m3/h namely 10 l/min)- model QN 1.5 DN15: 0.1 to 50 l/min (nominal flow rate 1.5 m3/h namely 25 l/min)- model QN 2.5 DN20: 0.16 to 82 l/min (nominal flow rate 2.5 m3/h namely 41 l/min) - model QN 3.5 DN25: 0.6 to 116 l/min (nominal flow rate 3.5 m3/h namely 58 l/min) - model QN 6.0 DN25: 1 to 200 l/min (nominal flow rate 6.0 m3/h namely 100 l/min)

    Commodity Codes

    Technical attributes

    Type 8081
    Flow rate (volume) Yes
    Continuous measurement Yes
    Dosing No
    Switch Yes
    Display type no display
    Protection class measurement device (IP) 65
    DC voltage min. 12 V
    DC voltage max. 36 V
    Battery voltage No
    Precision of volume flow rate in relation to reading 1 %
    Temperature environment min 5 °C
    Temperature environment max 55 °C
    Temperature medium min 5 °C
    Temperature medium max 90 °C
    Pressure Class (PN) PN 16
    Dynamic viscosity min. 0 cP
    Dynamic viscosity max. 10 cP
    Min measured value of volume flow rate 0.1
    Max measured value of volume flow rate 50
    Measured value unit l/min
    Detection of flow direction Yes
    Sensor type Ultrasound
    Cable plug in delivery not included
    Electrical connection 1 type Plug - M12
    Electrical connection 1 quantity 1 PCE
    Electrical connection 1 number of contacts 5 PCE
    Electrical connection 1 gender male
    Electrical connection 1 material PA (Polyamide)
    Electrical connection 1 seal material EPDM (Ethylene-propylene-diene rubber)
    Output 1 digital type Transistor
    Output 1 digital version NC No
    Output 1 digital version NO No
    Output 1 digital transistor connection NPN Yes
    Output 1 digital transistor connection PNP No
    Digital output 1 transistor contactless 0.7 A
    Electronics body material PPS (Polyphenylene sulphide)
    Cover material PPS (Polyphenylene sulphide)
    Seal housing/cover material Silicone
    Screw material Stainless steel
    Electronics body encapsulated Resin
    Parametrisation local No
    Parametrisation separate No
    Parametrisation fixed Yes
    Diameter measuring tube (DN) 15 mm
    Fluidic port connection number 2 PCE
    Port connection 1 type Outer thread
    Port connection 1 thread type NPT
    Port connection 1 thread marking 3/4
    Port connection material Brass
    Measuring pipe material PES (Polyethersulfone)
    Medium-contacting parts seal material EPDM (Ethylene-propylene-diene rubber)
    Installation length 110 mm
    Weight 0,700000 kg
    Weight 0,700000 kg
    Show full table Collapse table


    Language / Country
    3D_ANIMATION 3D-Animation - 8081 3D-PDF-DE-SD-USD6_pdf.pdf 3.8 MB DE
    3D_ANIMATION 3D-Animation - 8081 3D-PDF-EN-SD-USD6_pdf.pdf 3.7 MB EN
    DTS Durchflusssensor - Ultraschall DS8081-Standard-DE-DE.pdf 626.1 kB DE / DE
    DTS Flow sensor - Ultrasonic DS8081-Standard-EU-EN.pdf 648.4 kB EN / EU
    DTS Capteur de débit continu DS8081-Standard-FR-FR.pdf 345.2 kB FR / FR
    MAN Ultrasonic waves flow transmit MA8081-FlowTransmit-EU-ML.pdf 1.8 MB EN,FR,DE / EU
    Item No.
    438680 Plug M12 5 positions 2m screened
    917116 flange sleeve M12 5pl, screwed cont.