Instrument Division

Analog Ammeter

Moving Iron Instruments are protected from damage or breakage under adverse condition due to its spring loaded jewel & pivot system. And are free from external magnetic field influences because of magnetic shielding & are 'CE' certified. These instruments have a very efficient oil damping system, which gives almost a deadbeat movement to the pointer, without irksome oscillation. The movement is light yet sturdy and has a large torque to weight ratio which assures long life to instruments. These indicate true RMS values practically independent of waveform even of high harmonics. The scale is compressed initially. Readability starts from 10 to 15 degree approximately.

FEATURES
• Scale                              : Non-linear.
• Suppression                     : Initial suppression for                                                     Voltmeter & End suppression                                                     upto 6 times for Ammeter.
• Scale Colour                      : Special colour scales and                                                     marks for different ranges.                                                     (on request).
• Housing                              : Engineering plastic.
• Terminal Protection         : Shrouded terminals to protect                                                    from accident. (on request).

Analog Voltmeter

Moving Coil Instruments are protected from damage or breakage under adverse conditions due to spring loaded jewel & pivot system. These instruments are free from external magnetic field influences because of centre magnet system & are ''CE" certified. Voltmeters are made upto 600V for direct connection and upto 1200V with external multiplier with sensitivity 1000 ohms/V. Higher sensitivities are available. Scale printed for other variables viz. Speed, Temp, pH, kW, kVAR, Hz or cosq etc. can be supplied on request. Ammeters with internal shunts are available upto 30 Amps and for higher currents upto 12000 Amps use external shunts of 50mV, 60mV etc.

FEATURES
• SCALE                                   :    Linear.
• SCALE COLOUR                      :    Special colour scales & marks for different ranges. (on request).
• GLASS                                     :    Anti-glare. (on request).
• HOUSING                                :    Engineering plastic.
• TERMINAL PROTECTION :    Shrouded terminals to                                                         protect from accident.                                                         (on request).

Frequency Meter

It is used to measure the applied frequency. Vibrating Reed Frequency meters indicate the supply frequency by means of individual reeds. When rated voltage ± 20% is applied across the terminals of the meter, the particular reed, whose natural frequency of vibration coincides with the supply frequency, vibrates with full amplitude. In case the supply frequency falls midway between two reeds both the reeds vibrate, at reduced amplitude. The amplitude of vibration at the tip of reeds is high enough for a distinct indication.
The instrument can be operated at 110V, 220V, or 440V. Terminal screws with washers are provided for the selected operating voltage & remaining two terminals are covered with insulated caps.
In case of RFD96 and RFD144 instruments, two sets of reeds with the same scale range can be offered, giving two independent meters in one casing. This facilitates in comparing the frequency of two voltage supplies for paralleling operation.

FEATURES
• Vibrating reed.

• Low power consumption

• No aging effect.

• Rugged construction

• Faster response.

• High reliability

• Lighter in weight.

Digital Panel Meter

Digital Panel Meter operates on the principle of dual slope integration. It is available in two types i.e. 31/2 digit & 41/2 digit. Digital frequency meter incorporates microcontroller with crystal oscillator to display the frequency. It is available in 4 digit type.

FEATURES
• Low cost.
• Seven segment red & green colour LED display with 0.5' & 1" size.
• AC current input is incorporated with built-in CT of lAmp or 5Amp for isolation.
• High accuracy.
• AC / DC signal measurement

Shunt

The shunts are designed & manufactured to comply with the requirements of 151248 / DIN43703
& DIN43780. The shunt provides an accurate d .c. millivolt signal, exactly proportional to the measuring current.

FEATURES
• Rating lA to 15000A
• Riveted and soldered construction
• In-line bus bar mounting
• Very low temperature coefficient
• High overload withstand
• Shock and vibration tested
• Long term stability

Transducer

Transducers convert various electrical power line parameters viz. Voltage, Current, Frequency, Power Factor, Active power, Reactive power, Apparent power into DC current or voltage output. The output of transducer is independent of load impedance. These are used in various electrical, thermal, chemical & other power plants to monitor processed data either locally or from remote using various devices such as indicating meters, data loggers, recorders, SCADA systems.
These transducers can also be used as external units in conjunction with analog or digital indicators.

FEATURES
• Open & short circuit protected.
• Current and Voltage output are independent of load impedance.
• Suitable for panel as well as DIN — RAIL mounting.

Energy Audit Kit

As per new guideline issued by ‘Bureau of Energy Efficiency ‘It has become important to carry out Energy audit for electrical consuming establishment.”AE — EMS 9000″ Energy Audit Kit is designed to measure, display and/or record the most important parameters of an electrical network. With the analysis of the electrical parameters, the user can find out the power consumption of the installation or detect problems within it.The new EMS 9000 portable Audit Kit can use in variety of industrial and commercial applications where Power / Energy analysis are required. It can useful at various technical Institutes & Electrical Consultants for testing and study purpose. It is a useful tool for preventive and predictive electrical system maintenance. This Portable type Audit kit is designed for easy transportation, temporary and simple installation; the simple user friendly software is capable for measuring & display different electrical parameters. Software help user to store & analyze their data on PC.

FEATURES:
• User friendly, fully featured unique measuring,     monitoring and analysis software.
• True RMS voltage and current measurements.
• Total Voltage or Current %THD measurement, Up to 21St     Harmonic.
• Real Time Clock
• Import / Export Energy measurement.
• Active, Reactive & Apparent Energies & Power     measurement.
• Demand measurement KW / KVA. Different Demand     interval can be set.
• Phase and Phasor angle measurement.
• Neutral current measurement.
• Measurement of Minimum/Maximum Voltage and     Current Values.
• Inbuilt printer for measured parameters printing i.e. for     Audit proof.
• RS-485 Standard Modbus protocol via USB port. (     Optional `RF’ Protocol)
• 4 clamps for current measurements up to 1000A.
• 1 inch bright LED display for better visibility.
• Simultaneously three parameters can be viewed.
• Universal Mains power supply 85-285 V AC/DC.
• Light weight with easy carrying case.
• State of the art Aluminum enclosure as per DIN- 41494     standard.
• Accessories provided with Kit: Retractable sockets &     sheathed plugs, Insulated Crocodile clips & flexible     Silicon Test leads 2 meters long.
• On software’s, single screen Display all parameters.
• Refresh / Read data from meter after every 2 second.
• Facility to save the parameter values in database after     specific time period.
• Facility to take weekly or monthly backup database.
• Facility to export database values into Excel file for     further use.
• Facility to plot graphs among various stored parameters     values.