Sentinel 3+ Battery Impedance, Voltage and Temperature Sensor Gen 3+, Accuracy 0.5%, S-Bus Output

Sentinel 3+ Battery Impedance, Voltage and Temperature Sensor Gen 3+, Accuracy 0.5%, S-Bus Output

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10 pcs in stock

$284.00 $312.40 inclGST Excl. VAT

        SKU: FE-BM SENTINEL 3 +

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        Description

        Sentinel 3+ Battery Sensor Gen 3+, DIN Rail Mount

        Compact and versatile 3 in 1 Battery sensor for monitoring of critical battery systems, included Flooded Cell, and VLRA types.

        The Sentinel 3+ is a state of the art, System on Chip (SoC) digital transducer designed to monitor VRLA, gel or flooded stationary battery systems. Data is transmitted over a dedicated communication bus to proprietary and non-proprietary devices

        Features

        • Din Rail Mount, Compact Design
        • LED status indicator
        • Temperature patch for direct battery measurement
        • Communication interface isolation 2.16 kV
        • Fast, simple fittings
        • , Voltage, Temperature and True AC Impedance Measurement
        • S-Bus Output (Interface with OEM equipment)
        • Suitable for Transformerless UPS systems (may require Common mode Isolator)
        • Isolated plastic case recognised according to UL94-V0

        Advantages

        • Excellent sensitivity, accuracy, and repeatability
        • High current stimulation for secure impedance measurement
        • Improved immunity to Common Mode transients in newer UPS topologies (ie. transformerless, using fast IGBTs and/or a floating battery with respect to earth ground).

        Applications

        • UPS
        • Telecommunications
        • Battery supplied applications

        Application Domains

        • Energy & Automation
        • Industrial.
        • Utilities
        • Fire & Safety system
        • Remote monitoring
        LEM Part Number BM Sentinel 3+
        Technology SoC 3 in 1 sensor
        CE Approved Yes
        Supply Voltage 0.9 .. 16VDC @ 30mA
        Voltage Measurement Range 0.9 .. 16VDC @ 30mA
        Temperature Measurement Range -10°C / 70°C
        Output S-Bus Digital protocol
        Isolation 2.16kV (AC, 50Hz, 1 min)
        S-Bus Baud Rate 9600 bps
        Mounting Style Din Rail Mount
        Operating Temperature Range -10°C / 70°C
        Accuracy 0.5%
        Termination Style 6 Pin Connector (for BM CBL POW 0.4/0.6M)
        Unit Weight 70g
        Factory Pack Qty 6

         

        Datasheet

        Used to monitor and measure battery Impedance, Voltage, and Surface Temperature.

        OEM Software Tools

        Application Notes

        In a UPS, the current drawn by the inverter contains line frequency harmonic components (mostly 2nd, 4th and 6th). Part of this ripple current flows through the battery, to which is connected the Sentinel.

        As the Sentinel itself uses an excitation current for the impedance measurement, so the presence of ripple current can interfere with the measurement and thus cause errors. The table below quantifies the additional error resulting from 1A rms of ripple current, for different combinations of ripple current harmonics and bloc voltage.

        Table 1: Additional errors for impedance measurement due to ripple current (See datasheet)

        Notes:

        The error values are the maximum, and are normalized for 1A rms of ripple current. The error is proportional to the ripple current; for example, if the ripple current was 2A rms the error will increase by factor 2.

        Read more

        Specifications

        • Weight: 200gr
        • Usage: Indoor & outdoor

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