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Mahesh Electrical InstrumentsMahesh Electrical Instruments
 Electrical Measuring Instruments
Mahesh Electrical Instruments is a proficient company indulged in manufacturing and exporting of an assortment of electrical instruments. Our huge array of instruments is produced using latest technologies. Our instruments are known for their advanced quality standards, both in terms of performance and durability. The various instruments that are a part of our product range are as follows:


Panel Meter
Panel Meter

With our vast, fruitful experience in the field of manufacturing various electrical instruments, we present our clients with our unique instrument, Panel Meter. The ME panel meters are used on following items:

  • Switch Board

  • Motor

  • Control Gears

  • Control Panels


  • The product serve the purpose of measuring electrical quantities such as Current, Voltage, Power (Active, Reactive) or the Power factor of meter. They can be moving coil, moving iron or dynamo-meter type; having a method of indication through deflecting pointer only.

    We manufacture top class Panel Meter, to meet the requirements of IS 1248/83. Their salient features include:


  • Made from Best Quality Material

  • Light in Weight

  • Negligible Power Loss

  • Rugged Construction

  • Adequate Size of Stamping (Allows easy readability from a distance)

  • Adequately Plated Metal Parts for Tropical Condition

  • Effective Shield against External Magnetic Effects and Electrostatic Influences

  • Satisfactory Performance over a long period




  • Ohms Meter

    We manufacture and export the specially designed Ohms Meter. Few of the popular features of the electric instrument are as follows:

  • Portable

  • Sensitive

  • Self-contained

  • Battery operated

  • Moving coil type ohms meter


  • The instrument provides accurate readings, as a result of following:

  • Anti parallax mirror scale

  • Knife-edge pointer

  • Infinity Adjustment Potentiometer

  • Mechanical zero adjuster is provided to adjust zero


  • To avoid Battery Drain, the instrument is equipped with PRESS TO READ switch. Its specifications include:

  • Ranges: Choice of 25, 50, 100, 300, 500, 1000, 2000 and 5000 ohms

  • Accuracy: ± 5% of the indicated value at center scale

  • Dimensions: 160mm x 110 mm x 80 mm approx

  • Weight: 700 grams approx

  • Power Source: 1 number of pen cell of 1.5 volts, Eve ready type 1035 or equivalent

  • Accessories : Test Leads


  • Ohms Meter


    Portable Meter
    Portable Meter

    The Portable Meter manufactured by us is available under the brand name ME Portable Meter and meets the requirements of IS 1248/83. It has an indication method via deflecting pointer only and can be any of following types:

  • Moving Coil

  • Moving Iron

  • Dynamo-meter type


  • Application area of ME Portable Meter

    The meter is used for the measurements of electrical quantities such as:

  • Current

  • Voltage

  • Power (Active, Reactive)

  • Power factor of the network


  • Salient Features:

  • Manufactured with best quality material

  • Fitted in sunmica wooden case

  • Rubber footing and rexine strap provided with antipara'Uax mirror and knife-edge pointer

  • Minimum friction

  • Sustains accuracy in vigorous field condition

  • Fine Performance over a long time span

  • Effective oil damping

  • Metal parts are adequately plated

  • Effectively shielded instruments, from external magnetic effects & electrostatic influences


  • Special Attachments available at EXTRA COST

  • Center Zero or shifted zero instrument are available in moving coil and dynamo type

  • Multi range voltmeters, ammeters and watt meters are available.

  • Precision grade instruments are available with accuracy 0.5%.

  • Magnetic shielding can be provided

  • Demonstration type meters are available




  • D.C. Energy Meter

    The world class D.C. Energy Meter, popular by the name ME Digital DC Energy meter, manufactured by us, is used to measure the DC energy consumed by a DC load (DC motors etc).

    Specifications:

  • Energy Indication: Max. 09.99 Kwli. Resolution 0.1 Kwh

  • Current Ranges: 2.5 - 5 ADC and 5 - 10 ADC and 10 - 20 ADC (any one Range)

  • Accuracy Power: ± 2%, ± 1 Digit at load voltage. 230 VDC

  • Rechargeable Nickel / Cadmium Batteries (4x1.5 Volt) (Batteries charging mains: 230 VAC)

  • I.ED, 0.3 inch 4 digit numerals with low Battery; (1.OBATT1)

  • Energy consumption ('ENG CONS') indicators

  • Battery Charger


  • D.C. Energy Meter


    Current Transformer
    Current Transformer

    The high quality Current Transformer available with us; is a measuring device used in metering & protection system. The Bar Primary ring-type current transformers consist of a secondary coil wounded on a torroidal core, if high permeability silicon steel is used in production. Few of the operational features of the instrument are as follows:

  • Its windings provide lower proportional current which is easily measured by various measuring instruments.


  • They isolate measuring instruments & protective devices,from main & higher voltages.


  • Some of its appreciable features include following:

  • Sturdy Built

  • Compact

  • Economical


  • Paid Optional Components:

  • Secondary 1 Amp current ratings

  • 15 VA Burden




  • Variac Auto Transformer

    We design and engineer state-of-the-art Variac Auto Transformer, which is widely used fro electrical purpose. Few of the salient features of the instrument include following:

  • Rugged construction

  • Excellent regulation

  • High efficacy

  • Overload capacity

  • Low operating torque

  • Low maintenance and trouble free life

  • Variac – Flush / Open Type, Single Phase


  • Variac Auto Transformer


    D.C. Shunt
    D.C. Shunt

    The D.C. Shunt (or ME shunts) available with us are ideal for current ratings from 5 to 10000 Amps and mill volt drops of 75 millivolts. The product conforms to IS Standards 1248 and is provided with leads of 0.025 ohms. Some of its construction features are cited below:

  • It consists of Mangenin rods, soldered or silver brazed, to brass end blocks.

  • It is artificially aged after manufacture; followed by tests on full load.

  • Lead resistance is considered while calibrating the instrument


  • Salient features of the ME Shunts are as follows:

  • Class 1 accuracy

  • Temperature Co-Efficient

  • 0.002% per degree centigrade, above ambient temperature in still air, with free ventilation

  • Temperature not exceeding 120°C at the center and 90°C at the ends

  • The ME Shunts withstand temperatures up to 120oC; without any permanent alterations in physical or electrical properties

  • Overloads and faults due to high temperatures (>120oC) can be safely handled


  • All 75 millivolts drop shunts of class 1, withstand the following overload requirements:

  • 2 X rated current for 3 minutes

  • 4 X rated current for 30 seconds

  • 10 X rated current for 5 seconds




  • Phase sequence Indicator

    We manufacture the Phase Sequence Indicator or PSI with extreme care towards its efficiency and quality. It is a portable and sturdy instrument that includes a rotating disc to indicate the sequence of phases of 3-phase power supply.

  • Clockwise rotation of the rotating disk of the PSI indicates proper sequence.

  • Anti-clock wise rotation indicates improper sequence.


  • The instrument is used to check the phase sequences, when the same are to be connected in proper sequence with following applications:

  • Watt meters

  • Power factor meters

  • Motor and similar applications


  • Specifications of Phase Sequence Indicator

  • Frequency Range: 25 to 60 Hertz

  • Connection Leads: 1-meter long Red, Yellow and Blue test leads

  • Size: 96 x 96 x 60mm. Portable in ABS Body

  • Weight: Approximately, 800 grams


  • Phase sequence Indicator


    Cell Tester
    Cell Tester

    Cell Tester is one of our highly demanded electrical instruments. It is used to check battery voltage in following:

  • Automobiles

  • Laboratories and other applications


  • Its attributes related to its construction are as follows:

  • Center zero dial of 65mm diameter, for voltage reading with polarity indication


  • Terminal spike, fitted on the top of instrument. It can be directly connected to one of the battery terminals


  • 150mm long insulated prod with flexible test lead. It can be connected to other battery terminal


  • Specifications:

  • Range: 3-0-3 volts (6-0-6v to 30-0-30 volts also available, upon request)

  • Accuracy: ± 2.5% of F.S.D

  • Meter: Permanent magnet moving coil type of DC volt meter, with center zero scales of 60 divisions and external zero adjuster. Housed in black abs back-lite moulded cabinet

  • Sensitivity: 1000 ohms per volt

  • Weight: 200 grams approx




  • Load Bank

    We manufacture and export high class ME Load Bank, which is a single phase and three phase variable Lamp or resistor or capacitor load and is housed in a metal case. It is used for stimulating load conditions to test Voltmeters, Ammeters and Watt meters, using load switches provided on the bench. The total simulated load is the sum of loads of all 'ON' switches.

    Construction Features:
    The ME Load Banks are provided with:

  • Castor wheels for easy handling

  • Ammeters and Voltmeter on front panel to indicate the current and voltage respectively

  • Heavy-duty Porcelain switches with bake lite top and inner brass contact for safety


  • Specifications:
  • Input main voltage: 230/440vac.

  • Voltmeter range: 0-300/500v ac

  • Ammeter Range: 0-5/10/15/25aac

  • Load range: 1/2/3/5/10 kw

  • Load type: Bulb / Resistance / Capacitor / Induction Load


  • Load Bank


    Induction Load
    Induction Load

    The ME Induction Load manufactured by us is a single phase and three phase variable induction load that is housed in a metal case provided with Castor wheels for easy handling. The instrument is used for varying current, which is measured on Ammeter(s).

  • When rotating knob is rotated in clockwise direction, the coils are kept in closed position.

  • When rotating knob is rotated in anticlockwise direction, the coils are kept in opened position.


  • Specifications:
  • Input Main Voltage: 230/440V AC

  • Voltmeter Range: 0-300/500V

  • AC Ammeter Range: 0-5/10/15/25AAC

  • Load Range: 1/2/3/5/10 KW

  • Load Type: Induction Load




  • Standard Battery Charger

    The Standard Battery Charger is one of our most demanded products. It is specially designed for working on single phase 200/250 Volts AC. It has the capability of charging 1 No. 12Volts battery at 10 Amps maximum, at an ambient temperature of 45°C. Its components are:

  • Main Transformer

  • Rectifier Stack

  • Ammeter/Voltmeter

  • Pilot Lamp

  • AC Fuse

  • On/Off Switch

  • Selector Switch

  • Output Terminals


  • Standard Battery Charger
    Panel Meter
    Ohms Meter
    Portable Meter
    D.C. Energy Meter
    Current Transformer
    Variac Auto Transformer
    D.C. Shunt
    Phase sequence Indicator
    Cell Tester
    Load Bank
    Induction Load
    Standard Battery Charger

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