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    The converter E859 (E 859, E-859, e859, e 859, e-859)

    The converter E859 - the measuring instrument is designed for a linear transformation of the active power of three-phase three-wire AC circuits in standard signal outputs direct current.
    Accuracy class: 0.5.
    Measuring ranges:
    - Current: 0 to 20mA;
    - Voltage: 80 - 120V;

    Power supply: from the measurement circuit.
    Power: 4W.
    Overall dimensions 120 × 80 × 120mm.
    Weight less than 0.9 kg.
    Converters E859 performed and versions, providing an opportunity mounted on the rail or directly on the panel. Devices made ​​without galvanic connection between the input and output circuits.
    E859 inverters can be used in automatic control and management of power generation facilities and various industries, as well as to monitor the current values ​​of active power.

    Specifications E859
    The operating conditions for the instrument filed in Table 1.

    Table 1.
Influence quantity
The normal value (normal range of values)
Tolerance of the normal value
Ambient temperature, ° C
20 ± 5
Relative humidity,%
30 - 80
Barometric pressure, kPa (mm Hg)
84 - 106 (630 - 800)
The external magnetic field
Geomagnetic field
Mains voltage alternating current,
-15 To +10%
Frequency, Hz
± 2
The shape of the AC power line
Harmonic distortion factor of less than 5%
Input Frequency, Hz
± 1
Waveform AC voltage input
Harmonic distortion factor of less than 5%

    The time setting of the output signal after a sudden change of input signal from zero to any value of the operating range - less than 0.5 seconds. Warm-up time - no more than 15 minutes.
    Unit converter for E859 MTBF is at least 50,000 hours. Average lifetime - at least 10 years of age.

Photos: E859

E859 front view.
E859 front view.
E859 side view.
E859 side view.
E859 rear view.
E859 rear view.

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