Electrical & Electronic Instruments

Approx. Rs 10,000 / PieceGet Latest Price

Product Description
All Types of Multimeters available.

Fluke 15B Digital Multimeter With the launch of 15B Digital Multimeters in India, Fluke offers features most often needed for troubleshooting most of day to day electrical and electronics problems. T15B DMM is specially designed for Indian technicians keeping in mind their requirements for quick and easy troubleshooting.

15B offers features like AC/DC voltage measurement along with functions like diode test, capacitance measurement and continuity detection. Simple to use and large LCD display along with many other user friendly benefits makes the 15B DMM a true companion 15B DMM is highly affordable and is easily available

Feature:

• Basic dc accuracy
• Digital display to 4,000 words
• Automatic and manual range
• Display hold function
• Diode and continuity test with buzzer
• Cover designed for easy hanging
• Category safety rating: IEC 1010-1: CAT I 1000 V, CAT II 600 V, CAT III 300 V
• Automatic shutdown
• Easily replaceable battery design
• 500 hours battery life
• Voltage AC, Voltage DC, resistance, capacitance, continuity beeper, diode test, A ac, A dc all
• in a durable holster
• Rugged and durable design – all inputs, ranges and functions are protected up to 1000 V
• Batteries and user's manual included
• V ac Range 0.1 mV to 1000 V Best Accuracy ± (1.0 % + 3 counts) AC Response 40 Hz to 500 Hz
• V dc Range 0.1 mV to 1000 V Best Accuracy ± (0.5 % + 3 counts) AC Response 0.1 Ω to 40 MΩ
• Ohms Range 0.1 Ω to 40 MΩ Best Accuracy ± (0.4 % + 2 counts)

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 13,500 / PieceGet Latest Price

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 14,500 / PieceGet Latest Price

1.Features:

-Measurement active pow er

-Monitoring the   active  power value

-Calculation power  factor value

-Over current  protection

-Record total time electricity

-Calculation carbon dioxide emissios

-Setting load alarm limit

-LCD display back light

2. Selection of Model Funct ion:

Model : Electric Quantity Voltage Current Frequency Power Factor Power CO2 Emission Overload 1A 220W 0.001W

3. Specifications:

Nominal voltage: 220V/50Hz;

Measurement range: 180.0V 260.0V;

Rated current: 1A/10A/16A

Measurement range of electric quantity: 0.000 9999KWh;

Power factor: 0.001 1.000;

Measurement range of CO2 output volume: 0.000 9999Kg

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 2.8 Lakh / PieceGet Latest Price

The VT 395 handheld meter features sophisticated circuitry that produces

higher accuracy than other pocket-sized meters.  This allows for the same

advantages as megohmmeters, but at an economical price.

Utilizing color-coded zones, the LED scale is easy to read and interpret. 

Half decade measurements give a closer indication to actual value.  A

specially colored “warning” stage alerts the auditor to material

approaching the upper end of the dissipative scale, so that it can be

designated as nearly out of specifcation.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 4,500 / PieceGet Latest Price

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 58,000 / PieceGet Latest Price

Autocollimator is a sensitive, extremely accurate optical instruments which is precisely used in optical workshops, inspection departments and quality control labs.

It's basically a comparator where we compare optical element like slabs and prisms for flatness. It is used for small angle measurement of the order of minutes.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 9,500 / PieceGet Latest Price

Product Details:

Our premium quality range of Electrical Motor Tester is appreciated by our clients for its high efficiency and computerizes operation. We offer our complete range of Electrical Motor Tester suitable for small and large motors. Various kinds of standards tests in Electrical Motor Tester are dielectric strength, insulation resistance, and digital ohmmeter with delta T ground efficiency. In addition, these testers are also perfect for power measurements, detection of the number of turns, sense of rotation, and detection of noise level.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Additional Information:

• Delivery Time: 1-2 week

Approx. Rs 6,500 / PieceGet Latest Price

Product Description

Features:

· Memory for 32,700 readings

· LCD to show logging information easily

· Free selectable measurement cycle from 1sec to 24hrs

· Battery life : more than 3 years (Under Ideal condition at 22oC)

· Display all status for Alarm and Record through 2 LED’s

· Alarm display if user-defined max/min values are exceeded

· Analysis software used to view graphically or Text mode for logging data

· USB Computer Interface (Advanced Software Program for all windows)

Standard Accessory:

· Battery

· Holding Case

· Safety Lock

· USB Cable with Software

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 19,500 / PieceGet Latest Price

EC Specifications

EC Range 0 to 1999 S/cm, 0.0 to 199.9 mS/cm, 0.0 to 199.9 S/cm, 0.00 to 19.99 mS/cm

EC Resolution 0.1 S/cm, 1 S/cm, 0.01 mS/cm, 0.1 mS/cm

EC Accuracy (@25C/77F) +-1% FS (excluding probe error)

EC Calibration manual, one point

EC Temperature Compensation automatic, 0 to 50 DegreeC (32 to 122 DegreeF) with user- selectable coefficients between 0 to 2.5 %/ DegreeC

Resistivity Specifications

Resistivity Range 0 to 19.90 M-cm

Resistivity Resolution 0.10 M-cm

Resistivity Accuracy +-2% FS

Resistivity Calibration manual, one point

Resistivity Temperature Compensation automatic, 0 to 50 DegreeC (32 to 122 DegreeF) with

user-selectable coefficients between 2 to 7 %/ DegreeC

Additional Specifications

Electrode/Probe VT-HI76303 platinum four-ring conductivity probe with internal

temperature sensor, DIN connector and 1 m (3.3') cable (included); VT-HI3316D

resistivity probe with internal temperature sensor, DIN connector and 1 m (3.3') cable (included)

Environment 0 to 50 DegreeC (32 to 122 DegreeF), RH max 95% non-condensing

Power Supply 12 VDC adapter (included)

Dimensions 235 x 222 x 109 mm (9.2 x 8.7 x 4.3")

Weight 1.3 kg (2.9 lbs.)

Ordering Information HI2316 is supplied with VT-HI76303 conductivity probe,

VT-HI3316D resistivity probe, 12 VDC adapter, and instruction manual

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Additional Information:

• Item Code: JL303

Approx. Rs 90,500 / PieceGet Latest Price

Production Engineering :

This is a armed wheel type strain gauge based Drill Tool Dynamometer designed to measure Thrust & Torque during drilling operation and effect of speed, feed cut on these forces. The unit consists a mechanical sensing unit or tool holder and digital force indicator. The job can be mounted on a workplace holder on mechanical sensing unit. The unit is useful for drilling up to 25 mm dia

Specifications :

• Mechanical Sensing Unit with Job Holder with strain Gauges mounted on it.
• Digital Force Indicator – two channel, to read both thrust and torque simultaneously.
• Balancing Potentiometer for initial balancing
• Range – thrust – 0 to 200 Kg, torque – 0 to 20 Kg m, least count – 1 Kg.
• The set up is calibrated at our works with the help of standard Proving Ring.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 45,000 / PieceGet Latest Price

Production Engineering :

This is a strain Gauge Type two/three component Lathe Tool Dynamometer designed to measure vertical & horizontal/(radial force in case of three component) forces on tool while orthogonal cutting process. The unit consists a mechanical sensing unit or tool holder and digital force indicator. With this dynamometer, students can study the change in these forces due to change in speed, feed and depth of cut.

Specifications:

Mechanical Sensing Unit with Tool Holder and Tool with strain Gauges mounted on it. Digital Force Indicator - two/three channel, to read both forces simultaneously. Balancing Potentiometer for initial balancing Range - 0 to 200 Kg, least count - 1 Kg. The set up is calibrated at our works with the help of standard Proving Ring.

Optional:

We can provide temperature indicator with thermocouple for measurement

of tool tip temperature at extra cost.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 42,000 / PieceGet Latest Price

Product Description

VT-40 is the latest microprocessor based IC tester. It functionally tests a wide variety of Digital ics up to 40 pins and linear/analog ics up to 20 pins.

Extra Specification

• DISPLAY:16x2 Backlit Alphanumeric LCD
• KEYBOARD: 24 keys Membrane Keyboard
• PACKAGE: Digital ICs 14, 16, 20, 24, 28 & 40 Pin DIP and Analog/Linear ICs 6, 8, 14,16 & 20 Pin DIP
• DIGITAL IC RANGE: 74 series of TTL ICs, 40 and 45 series of CMOS ICs, Microprocessors
• (8085,8086,8088, Z80,6502) Peripheral ICs (8255,8253,8251,8259,8155,8279,Z80 PIO)
• EPROMs (blank check only), RAM ICs 6116,6264,62256 etc.,
• ANALOG IC RANGE : Operational Amplifiers, Comparators, Transistor Arrays, Optocouplers,
• Analog Switches, Multiplexers, Voltage followers, timers, cross point switches, ADC, DAC etc.,
• METHOD :Output test with simulated inputs and at nominal load Truth table comparison
• SOCKETS: 20 pin ZIF for Linear and 40 pin Universal ZIF for Digital Ics.
• VOLTAGE:230V 50Hz +/- 10%

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 3,950 / PieceGet Latest Price

Product Description

We have carved a niche amongst the most trusted names in this business, engaged in offering comprehensive range of Tong Tester. Since we have established our base in this highly competitive industry, we are readily engrossed in the arena of presenting an inclusive variety of Digital Tong Tester. Using best class basic material along with urbane tools, these are manufactured beneath the administration of skilled executives.

Specification : 

·         Display: 13 mm (0.5") LCD, 3 1/2 digits.

·         Max. indication 1999.

·         Measurement & Range: ACA, DCA, ACV, DCV, Resistance, Diode, Data hold, Peak hold.

·         Polarity: Automatic Switching, " - " indicates negative polarity

·         Current Sensor: Half effect sensor.

·         Sampling time: Approx. 0.4 second.

·         Dimension HWD : 230 x 70 x 36 mm.(9.1 x 2.8 x 1.4 inch)

·         Max. Conductor Size: 32 mm (1.3 inch) Dia.

·         Accessories: Operation manual,Test lead (red & black), carrying case .

Features:

·         Design meet IEC 1010 safety requirement.

·         Compact & heavy duty ABS housing plastic case.

·         Measure DCA & ACA on the inductive conductor.

·         Wide ranges ( 1000 A, 200 A ) for ACA/DCA measurement.

·         LSI circuit provides high reliability and durability.

·         Multi-functions for ACA, ACV, DCV, OHMS, Diode, Continuity beeper measurement.

·         LCD display allows clear readout even at high ambient light level.

·         Overload protection circuit is provided for all range.

Approx. Rs 5,000 / PieceGet Latest Price

Features :
• 3½ digits LCD display
• Accurate measurement
• Easy to configure
• Easy to use
• Feather touch buttons
• 1999 count
• Displays when there is overload (OL)
• Approximately 100 hrs of Battery life
• Used For: Research purpose, Navigation, Industrial application, Detecting electric field pollution. 

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 3,950 / PieceGet Latest Price

• Clamp opens 52mm
• Large LCD Display
• Full function protection, strong Anti-Interferential
• Performance.
• Data Hold
• Clamp Light and Backlight display  

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 6,500 / PieceGet Latest Price

Application

Digital Earth Resistance Tester is designed to measure the resistance if earth used in power circuit, Telecommunications, Railway Electrification, Domestic and Industrial electrical installations. The tester measures directly the resistance of the earth and also measure the ground resistivity. The study, elegant and compact body makes the instrument portable, easy to use, Hand-held instrument.

Salient Features

Rugged ABS body

Easy to use hand held meter

Ni-cd Re- chargeable Cells

Facility as to make bench top type instrument

Confirms to ISS : 9223/1979

Four terminals (To measure earth resistance as well as specic soil resistivity)

Lo-Bat or indication appears on Display indicating that the indicating the the cells (batteries) have gone down, which can be recharged by connecting to 230V, 50 Hz AC mains supply

through charging cord provided with the instrument

Technical Details

Display 3 1/2Digits, LCD 0% to 10% of the range +-3%

Accuracy 10% to 90% of the range +-1.5% 90% to 100% of the range +-3%

Dimensions (in mm) 172 x 98 x 38 (Approx.)

Weight 575 gm (Approx.)

Electrical Speci cation

H. V. Test 2KV AC (rms) for 1 min. between electrical

circuit and containing case

Insulation Resistance

Test More than 25 Megohms at 500 V DC between

electrical circuit & containing case

Accessories

Standard Accessories Carrying Case Charging Cord

Optional Accessories (at extra cost)

· Instruction Manual

· 4 Nos. M. S. Spike (45 cm Length)

· 1 Nos. Hammer

· 4 Nos. Cable (50 feet)

· 1 No. Plier

· 1 Nos. Screwdriver, all in one canvas bag

Any other combination of ranges can also be made on specification requirement

Guarantee

Guaranteed for 12 (twelve) months against any manufacturing defects

Dual Ranges

0 - 20 - 200 OHM

0 - 10 - 1000 OHM

0 - 100 - 1000 OHM

0 - 5 - 500 OHM

0 - 10 - 100 OHM

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Additional Information:

• Item Code: JDT-01

Approx. Rs 3,750 / PieceGet Latest Price

INTRODUCTION

These armature growler tester are made by using very high quality raw material which ensures high durability at its user end. These armature growler tester are widely finds its application in industrial and commercial sectors. When an alternating current is passed through a Growler, it sets up a magnetic flux in the iron of the armature or stator spanned by the jaws of the Growler. As this flux passes through any coil, it induces a potential

FEATURES

• Armature DIA: 20mm to 100 mm
• Available for higher ratings motors
• Durable
• Easy to use
• Volts220/230

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 6,500 / PieceGet Latest Price

INTRODUCTION
The phase rotation indicator is a handheld instrument designed to detect the rotary field or three-phase systems.
It also displays presence of three phases.

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature : -0ºC to +40ºC Pollution Degree, 2, Type of protection IP 40 Mechanical Specificatons Size (H x W x D) : 130 mm x 69 mm x 32 mm, Weight: 130g SAFETY SPECIFICATIONS
Electrical Safety - IEC 61010/EN61010 IEC 61557-7/EN 61557-7 Maximum Operating Voltage 690V Protection Levels CAT III, 600V to ground

ELECTRICAL SPECIFICATIONS

Power Supply : From unit under test Determines Rotary Field Direction
Nominal Voltage : 40 to 690 VAC
Frequency Range (fn) : 15 to 400Hz
Current pickup : 1 mA Nominal Test current (in per phase) : 1mA
Determines presence of three phases.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 24,000 / PieceGet Latest Price

• The VT5000 series power meters are the new benchmark in affordable, precision metering. It is the ideal fit for high-end cost management applications, providing the measurement capabilities needed to allocate energy usage, perform tenant metering and sub-billing, pin-point energy savings, optimize equipment efficiency and utilization, and perform a high level assessment of the power quality in an electrical network.Characteristics
• Accuracy class 0.2S (VT5500 models) and 0.5S (VT5100, VT5300 models) for active energy metering
• Compliance to regulations EN50470-1/3 (MID), IEC 61557-12, IEC 62053-21/22, IEC 62053-23
• Dual Ethernet ports (VT5500 models) to daisy chain meters together - less wiring, simpler installation
• Onboard web pages (VT5500 models) for viewing real-time and logged information
• Data logging (VT5300, VT5500 models) locally in non-volatile memory ensures that information is not lost during a power or communications outage
• Multiple tariffs (VT5300, VT5500 models) give you flexibility in your billing structure
• Individual harmonics in addition to THD and TDD to help locate the source of disturbances
• Graphical display with intuitive menu-driven navigation means information is easy to locate and read
• Compact design, two clips for mounting4 current inputs (VT5500 models)
• Extended voltage range (direct connection up to 690 V L-L)
• Real-time clock with battery back up

• Comprehensive, consistent and superior performance with compliance to international metering standard IEC 61557
• Precision metering & sub-billing thanks to energy metering compliance to IEC 61052/53 ranging from 0.5S to 0.2S
• Help save on energy costs through demand logging with timestamp, alarms and relays
• Billing flexibility with compliance to MID and support for up to 8 different tariffs
• Improve electrical network management with power quality analysis features
• Ease of use with intuitive menu-driven navigation and support for 8 different languages
• Complete WAGES monitoring due to 4 Digital Inputs & 2 Digital outputs (solid state)
• Seamless integration with StruxureWare Power Monitoring Expert 7 power management software

Panel builders benefit

• Ease of installation thanks to numerous design features means less time to install and more savings
• Ease of programming due to an enhanced, intuitive, menu-driven graphical user-interface
• Cost effectiveness for the price sensitive panel builder, as a single product or product family can meet the majority of requirements
• Aesthetically pleasing offer to help boost the panel builders’ image and reputation
• Simplified ordering for a comprehensive set of features in the best combinations - no feature overlap with option modules

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. Why not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Approx. Rs 59,500 / PieceGet Latest Price

Four Probe Method:Resistivity of Semiconductor by Four Probe Method at different temperatures and determination of the Band-gap

The Four Probe Method is one of the standard and most widely used method for the measurement of resistivity of semiconductors. The experimental arrangement is illustrated. In its useful form, the four probes are collinear. The error due to contact resistance, which is specially serious in the electrical measurement on semiconductors, is avoided by the use of two extra contacts (probes) between the current contacts. In this arrangement the contact resistance may all be high compare to the sample resistance, but as long as the resistance of the sample and contact resistances are small compared with the effective resistance of the voltage measuring device (potentiometer, electrometer or electronic voltmeter), the measured value will remain unaffected. Because of pressure contacts, the arrangement is also specially useful for quick measurement on different samples or sampling different parts of the same sample.

Description of the experimental set-up

1. Probes Arrangement

It has four individually spring loaded probes. The probes are collinear and equally spaced. The probes are mounted in a teflon bush, which ensure a good electrical insulation between the probes. A teflon spacer near the tips is also provided to keep the probes at equal distance. The whole – arrangement is mounted on a suitable stand and leads are provided for the voltage measurement.

2. Sample

Germanium crystal in the form of a chip

3. Oven

It is a small oven for the variation of temperature of the crystal from the room temperature to about

200°C (max.)

4. Four Probe Set-up, DFP-02

The set-up consists of three units in the same cabinet.

(i) Multirange Digital Voltmeter

In this unit, intersil 3½ digit single chip A/D Converter ICL 7107 has been used. It has high accuracy like auto zero to less than 10μV, zero drift of less than 1μV/ °C, input bias current of 10pA max. and roll-over error of less than one count. Since the use of internal reference causes the degradation in performance due to internal heating, an external reference has been used.

(ii) Constant Current Generator

It is an IC regulated current generator to provide a constant current to the outer probes irrespective of the changing resistance of the sample due to change in temperatures. The basic scheme is to use the feedback principle to limit the load current of the supply to preset maximum value. Variations in the current are achieved by a potentiometer included for that purpose. The supply is a highly regulated and practically ripple free d.c. source. The current is measured by the digital panel meter.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairswith 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.