JANAK ELECTRICALS Kalbadevi, Mumbai, Maharashtra

DESCRIPTION:- 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:- No vibrating parts. No aging effect. Faster response. Lighter in weight. Low power consumption No effect of external vibration Visible in dark & from distance.

DESCRIPTION:- "Highly Adaptable DPMs suitable for a wide range of measuring applications". The measurable input current/voltage is user progammable. Aux. Supply is galvanically isolated from measuring circuit FEATURES:- True RMS measurement. State of Art Microcontroller Based Design. Onsite Progammable CT/PT ratio. 4 digit ultra bright LED display. APPLICATIONS:- The digital panel meters AE DPM 96 have been designed for Industrail applications, i.e. electrical panels required for generation, distribution & commercial purpose.

DESCRIPTION:- It measures energy (Watthour) consumed by Single Phase / Three Phase, balanced / unbalanced load in power industry. The meter comprises of microcontroller with DIP switch provision to accomodate different CT Ratios. FEATURES:- True RMS measurement. Current direction reversal indication. No need of external auxiliary supply (Self-Powered). Tamper - proof Indication of energy by six digit electro - mechanical, non-resettable, impulse counter.

DESCRIPTION:- "Highly Adaptable DPMs suitable for a wide range of measuring applications". The measurable input current/voltage is user progammable. Aux. Supply is galvanically isolated from measuring circuit FEATURES:- True RMS measurement. State of Art Microcontroller Based Design. Onsite Progammable CT/PT ratio. 4 digit ultra bright LED display. APPLICATIONS:- The digital panel meters AE DPM 96 have been designed for Industrail applications, i.e. electrical panels required for generation, distribution & commercial purpose.

DESCRIPTION:- It is a rotating disc type instrument. The disc rotates in clockwise direction when correctly connected to incoming three phase power supply. Black arrow on white disk indicates correct phase sequence. If rotation is anti-clockwise then it indicates that one of the phases is reversed. It is suitable for use only in horizontal position and should not be left in circuit. Three, 1 meter long red, yellow, blue colour leads with clips and sheaths are provided. ELECTRICAL SPECIFICATIONS:- TYPE:- Electro-mechanical OPERATING VOLTAGE:- 50V to 500V AC FREQUENCY:- 25 Hz to 60 Hz. OPERATING TEMP. :- -10°C to 55°C STORAGE TEMP.:- -20° to 70°C HUMIDITY:- upto 95% RH

DESCRIPTION:- "Highly Adaptable DPMs with NEW CAPSENSE Technology suitable for a wide range of measuring appliactonns." CT/PT ratio are fully on site programmable through advanced "CAPSENSE" technology based front switches. Aux. Supply is galvanically isolated from measuring circuit. FEATURES:- True RMS measurement CAPSENSE Technology for front switches State of Art Microcontroller Based Design Cover wide measuring range. 4 digit ultra bright LED display Onsite programmable CT/PT ratio Light Weight APPLICATIONS:- The digital panel meters AE DPM M714 have been designed for Industrail applications, i.e. electrical panels required for generation, distribution & commercial purpose.

DESCRIPTION:- "Highly Adaptable DPMs with NEW CAPSENSE Technology suitable for a wide range of measuring appliactonns." Measurable input current/voltage is user programmable. Aux. Supply is galvanically isolated from measuring circuit. FEATURES:- True RMS measurement CAPSENSE Technology for front switches State of Art Microcontroller Based Design Cover wide measuring range. 4 digit ultra bright LED display Onsite programmable CT/PT ratio Light Weight APPLICATIONS:- The digital panel meters AE DPM M49 have been designed for Industrail applications, i.e. electrical panels required for generation, distribution & commercial purpose.

DESCRIPTION:- Moving Iron Instruments are protected from damage or breakage under adverse condition due to its spring loaded jewel & pivot system. These Instruments 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. SCALE COLOUR:- Special colour scales and marks for different ranges, (on request). GLASS:- Anti - glare. (on request) HOUSING:- Engineering plastic. TERMINAL PROTECTION :- Shrouded terminals to protect from accident, (on request). ELECTRICAL SPECIFICATIONS:- TYPE:- Moving Iron Slide In Scale. FREQUENCY:- l00nA to 30A. & Above 30A external shunt. ACCURACY:- Class 1.5 OPERATING TEMP. :- -10°C to 55°C STORAGE TEMP.:- -20° to 70°C HUMIDITY:- Up to 95% RH

DESCRIPTION:- 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 and are "CE" certified. Voltmeters are made upto 600V for direct connection and upto 1200V with / without external multiplier with sensitivity 1000 ohms / V. Higher sensitivities are available. Scale printed for other variables viz. Speed, Temp, pH, kW, kVAR, Hz or Cos ¢ (p, etc. can be supplied on request. 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). ELECTRICAL SPECIFICATIONS:- TYPE:- Moving Coil Slide in scale. OPERATING VOLTAGE:- 50mV to 600V. OPERATING CURRENT:- l00nA to 30A. & Above 30A external shunt. OPERATING TEMP. :- -10°C to 55°C STORAGE TEMP.:- -20° to 70°C HUMIDITY:- Up to 95% RH

DESCRIPTION:- Moving coil instruments with circular scale of 240° employ a platinum taut band for suspension of moving coil assembly instead of pivot & jewel system. It is less prone to sluggishness & zero shift due to frictionless movement. These meters are basically used for the measurement of DC current & voltage, and can be used with built in rectifier for the measurement of AC current & voltage in the frequency range 45~65Hz. / 400Hz. The meters measure average value. It can be scaled to indicate RMS values (on request). These instruments are not recommended for non-sinusoidal waveforms of current & voltage. The other indications like Frequency, Power & Power factor can be offered with suitable external transducers. Speed indication is possible if used with AC tacho-generator (not in the scope of AE). FEATURES:- Long scale instruments. ELECTRICAL SPECIFICATIONS:- TYPE:- MOVING COIL 240°. OPERATING VOLTAGE:- 60mV to 600V. OPERATING CURRENT:- 500µA to 30A & Above 30A with external shunt. OPERATING TEMP. :- -10°C to 55°C STORAGE TEMP.:- -20° to 70°C HUMIDITY:- Up to 95% RH

DESCRIPTION:- Maximum Demand meter is used for monitoring thermal loading in Power Distribution systems, Networks, Machines etc. It indicates maximum loading current over a period. Short-period current peaks are not registered but long overloads are registered. In the Maximum Demand meter the measuring current flows through the bimetal spiral which is temperature sensitive. The free end of the spiral is connected to a black measuring pointer. The moving system is activated by heat generated by the current flowing through the spiral. The instrument is provided with an additional red slave pointer with a higher friction, which makes it to remain at its maximum position, which determines the maximum average loading current. The high torque of metallic movement drags the red pointer along with the black pointer. The red pointer remains stationary at the maximum value reached. This can be reset by rotating the knob provided on front facia. To prevent false indication due to fluctuations in ambient temperature, an additional bimetallic spiral is wound in opposite direction, which is mounted on the same spindle to compensate variation in temperature from -10 to + 55 degrees Centigrade. Frequently there is a need to measure instantaneous current simultaneously & hence moving iron movement having the same range is incorporated in the same meter. FEATURES:- RMS measurement of maximum current. Long current peaks are registered. Red pointer to indicate maximum current reached. Analogue Indication. 20% overload capacity. ELECTRICAL SPECIFICATIONS:- TYPE:- BIMETALLIC; ANALOGUE AMMETER. OPERATING CURRENT:- 1 Amp or 5Amp FREQUENCY:- 40 ~ 65Hz. OPERATING TEMP. :- -10°C to 55°C (for Analogue Instrument) STORAGE TEMP.:- -20° to 70°C HUMIDITY:- Up to 95% RH

DESCRIPTION:- Direct measurement of Voltage in high voltage system is not possible because of insulation problem of measuring instruments. It is also not possible to use voltage through the system directly for protection purpose due to its high value & high insulation problem. In such conditions voltage transformers are used. BASIC FUNCTIONS OF VOLTAGE TRANSFORMERS ARE . . . To reduce the line current to a value which is suitable for standard measuring instruments, relays etc. To isolate the Measuring Instruments, Meters, Relays etc. from high voltage side of an installation. To sense abnormalities in Voltage & give Voltage signals to protective relays to isolate the defective system.

DESCRIPTION:- Direct measurement of current in high voltage system is not possible because of insulation problem of measuring instruments. It is also not possible to use current flowing through the system directly, for protection purpose due to its high value & high insulation problem. In such conditions Current Transformers are used. BASIC FUNCTIONS OF VOLTAGE TRANSFORMERS ARE . . . To reduce the line current to a value which is suitable for standard measuring instruments, relays etc. To isolate the Measuring Instruments, Meters, Relays etc. from high voltage side of an installation. To protect Measuring Instruments against short circuit currents. To sense abnormalities in current & give current signals to protective relays to isolate the defective system.

FEATURES:- User friendly, fully featured unique measuring, monitoring and analysis software. True RMS voltage and current measurements Total Voltage or Current %THD measurement, Upto 21st Harmonic Real Time Clock Phase and Phasor angle measurement Neutral current measurement TYPICAL APPLICATIONS:- Energy Audit of building management system Measures and audit power consumption of devices Evaluate laod performance under varying line condition Characterize device AC power requirement

DESCRIPTION:- It is used to measure the applied frequency, functionally similar to vibrating reed meter. The meter incorporates light emitting diodes LEDs which are used instead of vibrating reeds to indicate applied frequency. The frequency is determined by blinking LEDs. When applied frequency matches with the frequency marked on the dial, that particular LED blinks with maximum intensity. When the applied frequency is mid way between two adjacent LEDs, both LEDs blink. When the meter is switched on all the LEDs glow sequentially for a period of 1 to 1.5 seconds, thereafter it will indicate the applied frequency. All voltage ranges are available in single meter. Terminal screws with washers are provided only for specific voltage as per requirement & remaining two terminals are covered with insulated caps. In case of 96mm & 144mm instruments, two sets of LEDs with the same scale range can be offered, giving two independent meters in one casing (Dual Scale). This facilitates in comparing the frequency of two voltage supplies for paralleling operation. FEATURES:- No vibrating parts. No aging effect. Faster response. Lighter in weight. Low power consumption No effect of external vibration Visible in dark & from distance.

DESCRIPTION:- AE Dual Source KWH meter measures energy (Watt hour) Of both MAINS as well as GENSET, consumed in, Three phase 2 / 3 element, 3/ 4 Wire, balanced / unbalanced load circuits. The meter comprises of advanced microcontroller technology for reliability & accuracy. The user-friendly operation is the unique feature of this meter. FEATURES:- Available in Size 96mm x 96mm. True RMS measurement of energy. Phase sequence and Current direction reversal indication. Self Powered Auxilliary supply. Single meter records both mains / DG energy consumption. Individual phase missing indication. Display Total Energy (MAINS+GENSET). Isolated solid state separate pulse outputs for both DG & MAINS.

DESCRIPTION:- Digital Panel Meter operates on the principle of dual scope integration. It is available in two types i.e. 3 1/2 digit & 4 1/2 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. High Accuracy AC / DC signal measurement

DESCRIPTION:- DC energy measurement is based on the principle of integration of DC power with time incorporating state of art microcontroller based design FEATURES:- Programmable & password protected for the tampering protection. To widen the usage, different shunt ratio can be programmed directly through switch Programmable shunt ratio Programmable device ID and selectable baudrate. EEPROM based memory for energy data retention. RS 485 Modbus communication Measure DC energy of four channels simultaneously. Energy displayed on 16 X 2 Alphanumeric character LCD display with backlit.

DESCRIPTION:- It is a Combined Voltage, Current & Frequency meter. The meter incorporates micro-controller to measure & indicate these parameters simultaneously on three separate LED displays. BASIC FUNCTIONS OF VOLTAGE TRANSFORMERS ARE . . . Requires only one meter instead of three meters to indicate Voltage, Current and frequency Reduces panel Wiring. Isolation is provided for AC current input by 1 Amp or 5 Amp inbuilt CT.

DESCRIPTION:- 'AE' Built in Transducer type Digital Power Meter is equipped with a measuring transducer & Digital indicator. It measures Active, Reactive & Apparent power in Single Phase & Three Phase system. FEATURES:- The meter doesn't require external transducer, hence panel wiring is reduced.

DESCRIPTION:- Direct measurement of Voltage in high voltage system is not possible because of insulation problem of measuring instruments. It is also not possible to use voltage flowing through the system directly for protection purpose due to its high value and high insulation problem. In such conditions Voltage Transformers are used. BASIC FUNCTIONS OF VOLTAGE TRANSFORMERS ARE . . . To reduce the line voltage to a value which is suitable for standard measuring instruments, relays etc. To isolate the Measuring Instruments, Meters, Relays etc. from high voltage side of an installation. To sense abnormalities in voltage & give voltage signals to protective relays to isolate the defective system