Var meter

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Analog Panel Wattmeter/Varmeter

LM Analog Panel Wattmeter/Varmeter , available in 96x96 & 144x144mm , are suitable to indicate export and import , active and reactive power on sinusoidal and non-sinusoidal current . The Watt meters, LM96 are offered for the AC systems single phase , 3 phase balanced load 3 or 4 wire , 3 phase unbalanced load 3 or 4 wire .

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Analog panel wattmeter/varmetter

The Watt and Var meters , LML are offered for the following AC systems , single phase , 3 phase balanced load 3 or 4 wire , 3 phase unbalanced load 3 or 4 wire . LML 96 | 144 housed in moulded polycarbonate cases are suitable for the measurement of active and reactive power . They can be used both on sinusoidal and non-sinusoidal current .

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Digital Panel Meters

Digital Panel Meter are using to read measured values of DC and AC parameters of current, voltage, frequency, Watt, Var,power factor and temperature. The meters are displaying values on Seven segments .

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Varmeter

DPM 96x96 Series measures system active power (Import / Export) , Reactive power(Import / Export) , Apparent Power & Power Factor of three phase & single phase network . IT has 4 digit single line auto ranging LED display with polarity Indication .

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Power Meter

Digital multifunction meters from Ziegler instruments with multiple parameter measurement is world renowned in the power and energy sector . Ziegler Delta Power Meter measures important electrical parameters in 3 phase and single phase Network & replaces the multiple analog panel meters .

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DC Signal Meter

The moving coil meters are applied to measure low power DC signals, for example 0 to 1 mA/4 to 20 mA/0 to 10V DC etc. DQ is available in four different sizes, in other words 48 mm, 72 mm, 96 mm and 144 mm.

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Single frequency meter

Pointer frequency meter consisting of a moving coil instrument with built-in electronics for converting the frequency to a voltage signal. Also , Reed frequency meter with one row of metal reeds vibrating at the applied frequency (resolution: 1/4 Hz). With high immunity to 3rd harmonics, DEIF Pointer frequency meter is suitable for all applications.

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Watt and VAr meter

The WQ measures power or reactive power using a moving coil movement and a built-in electronic Watt or VAr transducer. Measuring power in a single-phase or 3-phase network, the transducer P.C.B. converts the signal into a DC current which is then fed to the moving coil instrument.

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Power factor meter

The PFQ power factor meter measures cos phi with a moving coil movement and an electronic transducer. The transducer measures the phase angle between an AC voltage and the corresponding AC current, converting the signal into a proportional DC current which is then fed to the moving coil instrument.

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Voltmeters and ammeters

DEIF voltmeter and ammeter types have been designed to save switchboard builders space and installation time and do not require installation of normal selector switch. The instruments measure AC voltages and currents and the switch type is available in 96 mm size only.

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Bimetallic Instrument

Bimetallic instruments (maximum demand ammeters) are specifically suitable for thermic control of cables, transformers, etc. Due to the inertia of the system, the instrument is not affected by brief current pulses. The system consists of 2 mechanically connected bimetallic spiral springs. One of the spiral springs is heated by the measuring current and consequently expands according to the temperature, which gives a quadratic scale graduation. The other spiral spring expands in the opposite direction, compensating for changes in the ambient temperature.

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Combined ammeter

The instrument type BEQ is specifically suited for indication of thermal loads in conjunction with cables, transformers, etc. The instrument is equipped with a bimetallic system and a moving iron system, used for maximum reading and instantaneous reading respectively. Due to the thermal characteristic of the bimetallic system this is not affected by brief current fluctuations. The bimetallic system is provided with a red maximum-reading pointer. This pointer can be reset by means of a knob on the front of the instrument.

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