• Overview

    The BM26A-1000 is a magnetic level indicator (MLI) for basic liquid applications. The cost-effective level indicator is particularly suitable for continuous level measurement in water storage tanks, condensate receiver tanks as well as wash and surge tanks for fuels, lubricates, additives or similar chemicals.

    The level indicator features a rugged metallic design with the magnetic flaps housed in an IP68 rated, hermetically sealed glass tube. It provides a highly visible local level indication. There is absolutely no power supply needed. However, in applications with more advanced signal output requirements, the MLI can be easily equipped with optional reed switches or a reed-chain level transmitter providing analogue or digital output signals.

    Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.

    • * Best price/performance ratio
    • * Rugged metallic design
    • * Easy to install, safe and no commissioning
    • * Flaps housed in hermetically sealed glass tube (IP68)
    • * Highly visible level indication works without power supply
    • * Optional Plexiglas® anti-icing indication
    • * Available with optional reed switches (3-wire, NAMUR) or reed-chain level transmitter (4…20 mA/HART®7, FF, PA output)



  • Specifications

    Depending on selected device configuration

    General information

    Product typeLevel indicator
    Product family nameBM
    Product positioningFor basic liquid applications
    Measurement principleFloat in bypass
    Level measurement typeContinuous measurement
    Contact to measured mediumYes
    Interface measurementNo
    RedundancyNo
    Measured mediaLiquids
    Measuring range (liquids)0.3…5.5 m/
    1...18 ft (other on request)

    Operating conditions

    Process pressure

    -1…40 barg/
    -14.5…580 psig

    Process temperature

    -70…+200°C/
    -94…+392°F

    Materials

    GasketsAramid, Graphite, Polytetrafluoroethylene (PTFE)
    Wetted partsAustenitic stainless steel (1.4404/316L), Titanium

    Process connections

    Flange connectionsEN (1092-1): DN15…50
    ASME (B 16.5): ½...2″
    Thread connections

    Male:
    G½, G¾
    ½ NPT, ¾ NPT

    Weld-in connections

    ½", ¾"

    Approvals/Standards

    Certificates/Approvals ExATEX, IECEx
    Certificates/Approvals OthersNACE, PED/EN 13445
    Ingress protectionIP68

    Communication

    Analogue outputs4…20 mA
    Discrete outputsLimit switches
    Digital outputsFOUNDATION™ fieldbus, HART®, Profibus-PA

    Accuracy

    Accuracy (liquids)

    ±10 mm/
    0.39 in
    (optional: ±5 mm / 0.2 in with LT40)

KROHNE BM26 Magnetic level indicator
Magnetic level indicator for basic liquid applications
* Cost-effective level measurement; no power supply needed
* Measuring range: 0.3…5.5 / 1...18 ft (others on request)
* Density: 700…1200 kg/m3 / 43.7…74.91 lb/ft3
* -70…+200°C / -94…+392°F; -1…40 barg / -14.5…580 psig
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