Educational Instruments

Approx. Rs 1,250 / PieceGet Latest Price

• This is used when the Optical Flat is less than 150 mm diameter. The Optical Flat is placed over the polished part under inspection. The light bands are viewed over the Optical Flat from above

• The part to be inspected is placed over the Optical Flat and the light bands are viewed from beneath after reflection from a mirror. This Type Monochromatic Light Source is used when the part under inspection is thin and of large diameter. If an Optical Flat of large diameter is to be placed on such thin parts there would be deformation of fringes due to the weight of large size Optical Flat. To avoid this the part to be inspected is placed over the Optical flat and the fringes are viewed after reflection from a mirror placed below.
• The Master surface of the Optical Flat face upwards and the test surface face downwards and are in contact to view the light bands. MLS-02 is suitable for use with 200 mm diameter Optical Flat. On request MLS to suit Optical Flats larger than 200 mm diameter is manufactured against specific Order.

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 34,500 / PieceGet Latest Price

• This Instrument is in according to VTECH D 1238, BS, DI, ISO, IS (Indian Standard) or according to customer’s required specification
• PID based temperature controller with auto-tune facility
• Having preset facility and buzzer output
• Applied weight 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.

Approx. Rs 26,500 / PieceGet Latest Price

• Leakage-resistant surface
• Digital panel meter
• Constant current generator

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 84,000 / PieceGet Latest Price

The Chemical oxygen demand i.e. COD value of water as determined by the dichromate method can be considered as an estimate of the theoretical oxygen demand means the amount of oxygen consumed into chemical oxidation of the organic constituents present in the water.

Features:

• Potassium Dichromate fast digestion - Spectrophotometric method
• Built-in & User defined calibration curve with the facility of storage.
• Unique plug-in standard SD card data storage technology
• Analysis of data can be transferred to the PC through SD card.
• Narrowband interface filters, cold light source extremely long lifespan.
• Fast accurate & stable performance.
• Auto Zero & Shut off facility
• Suppression of chloride interferences.
• Built-in real-time clock
• Various known brands COD vials can be used with the system

Specifications:

• Applications -used in practically every area of water analysis.
• as defined in IP 68, 1 hour at 0.1 meters, buoyant
• Description
• Scroll Memory
• Automatic Switch-Off
• Real-Time-Clock and Date
• Calibration mode indicator

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 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.

Approx. Rs 7,500 / PieceGet Latest Price

•  Magnify any area 2x or 6x larger.
•  Hands free foldable and adjustable design.
•  Ideal for sewing, hobbies and crafts.
•  Bright 2 piece LED lights illuminate the area.
•  Includes a built in measurement tool for precision.
•  Powered by 3 AAA batteries (not included).

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 15,500 / PieceGet Latest Price

This Pan Evaporimeter is manufactured as per Is 5973: 1970.The Pan is manufactured from painted GI sheet tested for water leak proofness. The stilling well and thermometer clamps are manufactured from Brass. This is supported on the wooden platform and covered with reinforced chicken, Measuring Jar is manufactured from transparent Acrylic also available is bran.This Pan Evaporator is also available in galvanized Iron as per customer's requirement.

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 43,950 / 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 49,500 / PieceGet Latest Price

MULTIPURPOSE

• A single device to analyze whole grains, flour, brans and other powdered products including semolina, couscous, and bulgur

• Wide range of pre-set calibrations included

• Multilingual interface Simplicity

• Results are generated in 60 seconds, no matter how many parameters are measured

• Self-adjusting measuring cell (wheat, corn, canola, flour)

• Export and use of results in Excel to simplify data processing Reliability

• Protection from dust and humidity

• Integrated cleaning system

• Results generated independently of temperature

• Storage of up to 100,000 saved analyses for permanent monitoring Reduced maintenance requirements

• User-serviceable, easy-to-change lamp

• Remote maintenance function, enabling V TECH Technologies to maintain the device remotely Modular design

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

• Advanced technologies, WINDOWS operating system.
• Automatic restart after power failure
• Each thermal block has 4 independent temperature control sensors and 8 peltier heating units to ensure accurate and uniform temperature across block surface, and provide users with replicating previous condition set-up.
• 8" TFT color touch-screen with graphical display provides easy use for setting up and monitoring set parameter.
• The actual and target temperature can be viewed and displayed graphically in real time
• Built-in 11 standard program file template, can quickly edit the required files.
• Internal flash memory for 10000 typical PCR files in free configurable folders.
• Compatible woth mouse, keyboard, capable to transfer ata and perform software updates via USB Drive.
• Applicable with the following 0.2ml tube models: non-skirted, semi and fully skirted plated.
• Replacement module, dual - block module can simultaneously run two different PCR programs.

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: VT-99121

Approx. Rs 12,500 / PieceGet Latest Price

This is very useful for distillation purpose for 300ml and 500ml capacity flask. Provided with condenser rack. To work on 220/230V A.C. Supply.

(a) Unit of 3 test Mantle Type (Without glass parts & clamps)

(b) Unit of 3 test Heater Type (Without glass parts and clamps)

(c) Unit of 6 test Mantle Type (Without glass parts & clamps)

(d) Unit of 6 test Heater Type (Without glass parts and clamps)

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.

Approx. Rs 1.98 Lakh / 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 24,500 / PieceGet Latest Price

Introduction

Regular arrangement of atoms in molecules and extended solids is very common. In crystalline solids the atoms are arranged in repeating three-dimensional arrays or lattices. Information regarding atomic bond distances and angles is fundamental to understanding the chemical and physical properties of materials. Since atomic dimensions are of the order of angstroms (10 m), unraveling the relative atomic positions of a solid requires a physical technique that operates on a similar spatial scale, Diffraction experiments involving X-ray, electron and neutron sources have therefore played a very crucial role in unraveling these structures. The significance of these experiments in science and engineering courses has been recognized. However, the cost of the equipment and the hazards associated with these experiments have made them very difficult to be

integrated and included in a teaching laboratory setting. The present set-up overcomes these limitations. An increase in scale by thousands from short wavelengths of X-rays to the long wavelengths of visible light, and by hundreds of thousands from an array of atoms in a crystal or an extended solid to an array of dots, allows us to replicate the basic features of a structural determination experiment in a teaching laboratory.

In place of Bragg diffraction whose results are to be simulated, we use Fraunhofer diffraction. Visible laser light passes through an array of scattering centers (dots) on a 35 mm slide. The diffraction pattern is viewed at

what is effectively infinite distance (a meter or so). This arrangement is capable of illustrating many of the essential features of the standard X-ray experiment. Mathematically, the equations for Fraunhofer and Bragg diffraction have a similar functional dependence on the interatomic distance, wavelength and the scattering angle. The symmetry of the diffraction pattern is same as the symmetry of the lattice causing the diffraction.

The central piece of the set-up is a slide (transparency) with eight (A-H) different arrangements of scattering

centers (dots) on different portions of the slide (Figure 3). The examples presented here serve to illustrate how the spacings, symmetries, spot intensities and systematic absences in a diffraction pattern are related to the lattice from which it is derived. Although these are two-dimensional lattices, they mimic what would be observed for diffraction from particular three-dimensional structures that are viewed in projection perpendicular to a face.

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

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 5,950 / PieceGet Latest Price

Catering to the needs of the clients, we offer premium Searchlight. Our Searchlight is highly acclaimed in the market for its high luminosity. It makes use of Micro Processing advance Technology systems. Our Searchlight can be availed at market leading prices.

Special Features

• Easy-to-carry with molded handle and shoulder strap
• Reliable micro controller based design
• Low battery warning indicates exhausted battery
• High reliability MOSFET for solid state switching
• Selectable Continuous, timer and flasher functions
• Advance Low-Battery System
• Battery Cut-off system straight
• D.C. Fuse Blown
• Approx. 70 minutes ( ± 10 min) of constant use at full light and at full charge
• Rugged & weather resistant, molded Super Tough Glass
• Automatic low-voltage cut-off prevents deep discharge

Application Area

• Paramilitary Forces
• Defense Forces
• Police
• Air Ports
• Security Agencies
• Industries
• Fire Fighting
• Vital Installations

Visible Controls

• System on
• Advance Low-Battery System
• Battery Cut-off system straight
• D.C. Fuse Blown

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 64,000 / 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 71,250 / PieceGet Latest Price

We are suppliers of Heat Transfer in Natural Convection

The range of Experiment:

• To determine average heat transfer coefficient of Friction
• To calculate and plot variation of local heat transfer coefficient along the length of the tube

Specifications:

• Dia: 38 mm

• Length: 500 mm

• Nichrome Wire

• Temperature Sensors RTD PT100 type

• Digital Voltmeter: 0-300 Volt

• Digital Ammeter: 0-2 Amp

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 52,500 / PieceGet Latest Price

• It consists of two concentric chambers, the inner chamber and the outer chamber, which communicates with each other through an opening at the top
• As the steam discharges through the metal basket, which has a large number of holes
• The water particles due to their heavier momentum get separated from the steam and collect in the chamber
• The comparatively dry steam in the inner chamber moves up and than down aging through the annular space between the two chambers and enters the Throttling Calorimeter

• It consists a narrow throat (Orifice)
• Pressure and temperature are measured by pressure gauge and thermometer
• The steam after throttling process passes through the heat exchanger and condensate is collected
• There is no need of boiler.

• To find the dryness fraction of steam

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 500 / PieceGet Latest Price

• It is used for measuring viscosity of very viscose liquids. 
• The Outer cylider can be clamped at any desired height and the inner cylider is granduated in mms and slots is convered  by a  transparent cover
• Complete with scale pans and releasing pin

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.