We are stalwarts in distributing and supplying Educational Instruments that are widely used around the globe. These instruments are manufactured by a team of nimble-fingered professionals making proper use of advance technology, modern tools and quality-approved basic raw material at our vendor's end. Offered educational instruments are fabricated as per the set industry laid norms and standards. These instruments are highly reliable for the various quality checking procedures from which these instruments pass through. Customers can avail these instruments from us. We are the Leader in Service, Rental, Repair, Calibration and Buy Back Exchange Offers of all Instruments.
Approx. Rs 1,250 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Application | Industrial |
Material | Teakwood construction |
Frequency | 50 Hz |
Easy Handling | Yes |
Pocket Friendly | Yes |
Light Source | 35W Sodium |
Wavelength | 0.575 micron |
Power | 220 V (110 V available on request) |
Instrument | Dimensions | Packed Dimensions | Net Weight | Gross Weight |
VT-01 | 410 x 310 x 520 mm | 635 x 457 x 406 mm | 9.75 Kgs | 13 Kgs |
VT-02 | 520 x 400 x 325 mm | 635 x 457 x 406 mm | 16.25 Kgs | 20 Kgs |
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
Approx. Rs 34,500 / PieceGet Latest Price
Product BrochureProduct Details:Minimum Order Quantity | 1 Piece |
Brand | VTECH |
Model Number/Name | VT6003 |
Display Type | Digital |
Temperature Range | Up to 400 degree C |
Power Supply | Electric |
Grade | Automatic |
I Deal In | New Only |
Accuracy | +-1 degree C |
Resolution | 0.1 degree C |
Digital Timer Range | Up to 999.9 min/ 999.9 sec |
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
Approx. Rs 26,500 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Usage/Application | Industrial |
Brand | V TECH |
Temperature Range | 473 K |
Power | 150 W |
Automation Type | Automatic |
Color | Silver |
Automation Grade | Automatic |
Resolution | 1 K |
Material | SS |
I Deal In | New Only |
Is It Customized | Customized |
Stability | (+/-) 0.5 K |
Specifications of the Oven |
|
Temperature Range |
Ambient to 473K |
Resolution |
1K |
Stability |
±0.5K |
Measurement Accuracy |
±1K (typical) |
Oven |
Specially designed for Four Probe Set-Up |
Sensor |
RTD (A class) |
Display |
3½ digit, 7 segments LED with auto polarity and decimal indication |
Power |
150W |
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
Approx. Rs 84,000 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Application | Laboratory Use |
Brand | V-Tech |
Display | Backlit LCD |
I Deal In | New Only |
Power Supply | 4 AA batteries |
Auto Off | Automatic |
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:
Specifications:
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
Approx. Rs 59,500 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Model | VT -100 |
Temp. Compensation | 0.008 % RH /C( Effect @ 0 % RH) |
Sensor Humidity | Thin-film Capacitor |
Temperature | RTD Pt100 Output |
Humidity | 4 -20 mA two wire,0-100 % RH |
Supply Voltage | 12 to 30 VDC |
Housing | ABS plastic watertight enclosure ( IP 65) |
Weight | 150 g |
Dimensions | 82 x 80 x 55 mm |
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
Approx. Rs 7,500 / PieceGet Latest Price
Product BrochureProduct Details:Minimum Order Quantity | 1 Piece |
Lighting Type | LED |
Brand | V-Tech |
Color | White |
Lens Size | D x W x H): Approx.15.5x24.5x19.7cm/6.10x9.65x7.76'' |
Material | Plastic, Metal, Acrylic Lens |
Model Name/Number | V-Tech |
Country of Origin | Made in India |
Batteries | 3 AAA |
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
Approx. Rs 15,500 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Application | Industrial |
No. of Pulse Count Digit | 6 Digit |
Measurement of Area | Up to 10 m2 |
Function | Auto-power-off for energy saving |
Measurement Value | 10 m2 |
Maximum Cumulative Area | 0.1 m2 |
Brand |
V-Tech |
Application |
Educational |
Material |
Copper |
Available Services |
Installation |
Minimum Order Quantity |
1 Piece |
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
Approx. Rs 43,950 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Material | SS |
Brand | V TECH |
Usage/Application | Industrial |
Model Number | VT56 |
Roller Diameter | 25 mm |
Features | Corrosion Resistance |
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
Approx. Rs 49,500 / PieceGet Latest Price
Product BrochureProduct Details:Minimum Order Quantity | 1 Piece |
Application | Industrial Use, Laboratory Use, Educational |
Usage | Laboratory, Industrial, Educational |
Brand | V-Tech |
Model | VT0789 |
Dust And Water Resistance | Yes |
device to analyze | grains,flour,brans |
Storage | 100,000 |
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
Approx. Rs 2.8 Lakh / PieceGet Latest Price
Product BrochureProduct Details:Minimum Order Quantity | 1 Piece |
Usage/Application | Industrial |
Brand | V TECH |
Material | Mild Steel |
Model Number | VT78 |
Automation Type | Automatic |
Color | Silver |
Colour | Multi |
Touch Screen | 8" |
Internal Flash Memory | 10000 |
Module | Replaceable |
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
Additional Information:
Approx. Rs 12,500 / PieceGet Latest Price
Product Details:Usage/Application | Automatic distillation |
Brand/Make | V Tech |
Model | VT4567 |
Design Type | Standard |
Color | MUlti |
Power | 1500 W |
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
Approx. Rs 1.98 Lakh / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Application | Industrial |
Brand | V Tech |
Model Number/Name | VT555 |
Wavelength | 330~900nm |
I Deal In | New |
Warranty | 10 Month |
Packing Type | Box |
Production Capacity: | 2000 Set/Sets Per Month |
---|---|
Payment Terms: | L/C, T/T, D/P, Western Union, Money Gram |
Name: | Aflatoxin Meter |
---|---|
Work Method: | Elisa |
Measure Range: | ≥0.1ng / Ml (Ppb) |
Absorption: | -0.041~1.999(a) |
Concentration: | 0.000~9999 |
Wavelength: | 330~900nm |
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
Approx. Rs 24,500 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Application | Laboratory |
Brand | V-Tech |
Model | XDE01 |
Color | Multi |
Detroit Diesel | 53, 71, 92, 110, 149, V53, V71 |
Gauge range | 0-1000 PSI/0-70 |
Hose length | 14.5 inch long |
Type | Digital |
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
Approx. Rs 19,500 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Brand | VTECH |
Application | Laboratory |
Model Number/Name | VT9332 |
Display | Digital |
Capacity | 50 tonnes |
Easy Handling | Yes |
Pocket Friendly | Yes |
Color | Black |
Fringes | 4-5 |
Enclosure | Aluminium |
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
Approx. Rs 5,950 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Lighting Type | LED |
Usage/Application | All TYPE |
Brand | V Tech |
Lighting Color | Pure White |
IP Rating | IP40 |
Color | Black |
Warranty | 12 month |
Glass Thickness | 2 mm (min.) |
Wattage | 55 Watt |
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
Application Area
Visible Controls
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
Approx. Rs 64,000 / PieceGet Latest Price
Product BrochureProduct Details:Minimum Order Quantity | 1 Piece |
Application | Industrial |
Model Number/Name | VT873 |
Brand | V TECH |
Material | SS |
Color | WHITE |
Resolution | 3-0.5 arc secs |
Display | Dgital,LED |
Power Supply | Electric |
Easy Handling | Yes |
Pocket Friendly | Yes |
Colour | Multi |
Usage | Small Angular tilt measurements |
Model | VT-01 | VT-02/03 | VT-04 |
Clear Aperture | 25 mm | 35 mm | 55 mm |
Readout | Micrometer | Micrometer | Micrometer |
Resolution/ Micrometer | 3 Secs | 1 Sec | 0.5 Secs |
Accuracy over 1 Minute Range | 6 Secs | 2 Secs | 1 Sec |
Accuracy over full Range | 30 Secs | 10 Secs | 5 Secs |
Measurement Axis | Dual | Dual | Dual |
Range of Measurement | 30 Minutes | 20 Minutes | 10 Minutes |
Magnification | 16X | 24X | 48X |
Field of View | 60 Minutes | 40 Minutes | 20 Minutes |
Illumination | LED | LED | LED |
Power | 220V, 50 Hz | 220V, 50 Hz | 220V, 50 Hz |
Overall Length | 330 mm | 400 mm | 530 mm |
Weight |
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
Approx. Rs 71,250 / PieceGet Latest Price
Product Details:Minimum Order Quantity | 1 Piece |
Medium Used | Water |
Outlet Temperature | 230 V, AC |
Diameter | 38 mm |
Length | 500 mm |
Wire | Nichrome |
Digital Voltmeter | 0-300 V |
Digital Ammeter | 0-2 Amp |
We are suppliers of Heat Transfer in Natural Convection
The range of Experiment:
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
Approx. Rs 52,500 / PieceGet Latest Price
Product BrochureProduct Details:Minimum Order Quantity | 1 Piece |
Model Number/Name | VT762 |
Automation Grade | YES |
Usage/Application | Industrial |
Color | Multi |
Power | Electric |
Application | Industrial |
Brand | Nunes Instruments |
Heater Capacity | 14 kW |
Steam Pressure | Max. 2 kg/cm2 |
Capacity | 20 Kg/hr |
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
Approx. Rs 500 / PieceGet Latest Price
Product BrochureProduct Details:Minimum Order Quantity | 1 Piece |
Model Number/Name | VT-1142 |
Brand | V TECH |
Number of Models | VT-1142 , VT-1138 etc.. |
I Deal In | New Only |
Country of Origin | Made in India |
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
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