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Electrical measuring instruments >> analog panel meters >> ammeters and voltmeters >> alternating current low-frequency (less 1000Hz) >> size 120x120mm


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    Voltmeter EV0702 (EV 0702; EV-0702, EV0702, EB 0702, EB-0702; EV0702; EV 0702; EV-0702)

    Voltmeter EV0702 - panel meter for measuring voltage in alternating current sine wave.
    Accuracy class - 1.5.
    The normal frequency range - 50Hz-1000Hz.
    Weight - no more than 0.35 kg.
    Dimensions of the voltmeter served in Figure 1. and Table 1.

EV0702 voltmeter overall and mounting dimensions.

Figure 1. Dimensions of the voltmeter EV0702.
Table 1.
A B C D D1
120mm 81mm 8mm 110mm 112mm
Structural features EV0702

    EV0702 voltmeters are available in two types:
    - Magneto system with a rectifier;
    - Electromagnetic system.

Voltmeter EV0702 magnetoelectric with rectifier has a meter with vnutriramochnym magnet, with bearings on the cores or banners and rectifier in the measuring circuit.
    Structurally, the EV0702 devices of this type are performed with a square front panels and round or square buildings. The degree of protection IP50 housing meet or IP54, protection of current-carrying rods - IP00.

    Voltmeters EV0702 electromagnetic systems measure AC current and voltage directly to the electrical circuits. Apparatus electromagnetic systems are based on the interaction of the magnetic field of the measured current (current flowing through the coil), with one or more cores made ​​of magnetic material.

    On a design EV0702 electromagnetic systems have two types of measurement mechanisms:
    - A flat coil and a movable core of magnetic material;
    - A circular coil with two cores within the coil.

    Measuring the mechanisms of these devices have support for the cores of steel glides.
    Specifications EV0702

    For voltmeter EV0702 final value of the measuring range, as well as a way to incorporate served in Table 2.
    Table 2.
The final value of the measuring range A way to incorporate
15V, 30V, 50V, 75V, 100V, 150V, 250V, 300V, 400V Directly
450V, 500V, 600V, 750V After a voltage transformer with a secondary voltage of 100V
3.5 kV, 4 kV, 6 kV, 7.5 kV, 12.5 kV, 15 kV, 17.5 kV, 20kV, 25kV, 40kV, 125kV, 150kV, 175kV, 200kV, 250kV, 400kV, 600sq

    Voltmeter EV0702 has the following characteristics for resistance to various external influences:
    - Vibration - acceleration of 5 m / s 2, the frequency of 20Hz;
    - Vibration - acceleration of 15 m / s 2, the frequency of 30Hz;
    - Shock - 70m / s 2, the frequency of attacks 10ud/min - 50ud/min.

    EV0702 voltmeters are designed for use in the following conditions:
    - The ambient air temperature - from -40 ° C to +50 ° C;
    - Relative humidity - 95% (at a temperature of +35 ° C).

    Positioning and mounting EV0702

    EV0702 voltmeters are designed for flush mounting on vertical or horizontal panels (panels) made ​​as of the magnetic and non-magnetic materials.

    When installing the EV0702 should adhere to the following rules:
    - Installation of equipment should be made ​​carefully, without distortions;
    - Fastening voltmeters EV0702 panel must be rigid and not create additional stress;
    - VoltmetrEV0702 the installation should be located away from sources of strong magnetic fields with a strength greater than 0.4 kA / m;
    - Appliances intended for inclusion in the network with a voltage of more than 650V, mounted on insulators of reach to touch.
    The manufacturer guarantees that the device specification requirements under normal use, storage, transportation and installation. Voltmeter EV0702 complies with ensuring the safety of life, health, consumer and environmental protection.

Photos: EV0702

EV0702 front view (scale).
EV0702 front view (scale).
EV0702 side view (casing depth).
EV0702 side view (casing depth).
EV0702 rear view (connection).
EV0702 rear view (connection).