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Magnetic Field Measurement Apparatus
Minimum Order Quantity: 1 Piece
Product Brochure
Material | Mild Steel |
Phase | Single Phase |
Application | Laboratory |
Two Coil Diameter | 200mm |
Number of turn | 1000 |
Current | 0-0.5A |
The experiment consists of two coils, Constant Current Power Supply and Gaussmeter. The Gaussmeter probe is mounted on a rail with a scale. It can move smoothly and precisely for measurement of magnetic field along the centre of the coils.
The following studies on Biot Savart’s law can be carried out with the set-up:
1. Study of magnetic field due to one coil and calculation of its diameter.
2. Study of Principal of super-imposition of magnetic field due to 2 coils by keeping the distance between the coils at a, >a and
3. Variation of magnetic field with number of turns in the coil.
Legend:
- Line 1 - Magnetic Profile when the distance between the coils is >a
- Line 2 - Magnetic Profile when the distance between coils is =a
- Line 3 - Magnetic Profile when the distance between coils is
Appratus consists of the following:
1. Digital Gaussmeter
- Range: 0-200
- Resolution: 0.1G
- Accuracy: + 0.5%
- Display: 3½ digit 7 segment LED with autopolarity.
2. Two Coil
- Diameter: 200mm
- Number of turn: 1000
3. Constant Current Power Supply
- Current: 0-0.5A Smoothly adjustable
- Line Regulato 0.2%for 10% mains variation.
- Load Regulator: 0.2 % for 0 to full load
- Display: 3½ digit 7 Segment LED Display
- Protection: Against overload/ short current.
Instrumentation , 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.
Magnetoresistance Of Semiconductors Measurement Setup
Usage/Application | Laboratory |
Model | VT-01 |
Brand | V-Tech |
Country of Origin | Made in India |
Resolution | 10 Micro A |
Current | 0-20mA |
Measurement of Magnetoresistance of Semiconductors
It is noticed that the resistance of the sample changes when the magnetic field is turned on. The phenomenon, called magnetoresistance, is due to the fact that the drift velocity of all carriers is not same. With the magnetic field on; the Hall voltage V=E t=|vx y H| compensates exactly the Lorentz force for carriers with the average velocity; slower carriers will be over compensated and faster one under compensated, resulting in trajectories that are not along the applied field. This results in an effective decrease of the mean free path and hence an increase in resistivity. Here the above referred symbols are defines as: v = drift velocity; E = applied electric field; t = thickness of the crystal; H = Magnetic field.
Experimentental Set-up for Magnetoresistance
The set-up consists of the following:
1. Four probe arrangement
2. Sample: (Ge: p-type)
3. Magnetoresistance set-up, DMR-01
4. Electromagnet, EMU-50V
5. Constant Current Power Supply, DPS-50
6. Digital Gaussmeter, DGM-102
(1) Four Probe arrangement°
It consists of 4 collinear, equally spaced (2mm) and individually spring loaded probes mounted on a PCB strip. Two outer probes forsupplying the constant current to the sample and two inner probesfor measuring the voltage developed across these probes This eliminates the error due to contact resistance which is particularlyserious in semiconductors. A platform is also provided for placing thesample and mounting the Four Probes on It.
(2) Sample
Ge Crystal (n-type) dimensions: 10 x 10 x 0.5mm.
(3) Magnetoresistance Set-up, Model VT-01
This unit consists of a digital millivoltmeter and constant current power supply The voltage and probe current can be read on the same digital panel meter through a selector switch.
(a) Digital Millivoltmeter
lntersil 3½ digit single chip ICL 7107 have been used. Since the use of internal reference causes the degradation in performance due to internal heating an external reference have been used. Digital voltmeter is much more convenient to use, because the input voltage of either polarity can be measured.
Specifications:
- Range : 0-200mV (100μV minimum)
- Accuracy : ±0.1% of reading ± 1 digit
(b) Constant Current Power Supply
This power supply, specially designed for Hall Probe, provides 100% protection against crystal burn-out due to excessive current. The supply is a highly regulated and practically ripple free dc source.
Specifications
- Current : 0-20mA
- Resolution : 10μA
- Accuracy : ±0.2% of the reading ±1 digit
- Load regulated : 0.03% for 0 to full load
- Line regulation : 0.05% for 10% variation
The details of other sub-units can be had from their respective data-sheets.
g) Gaussmeter, DGM-202
Instrumentation , 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
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- Scientific, Measuring, Precision Instrument,
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V- TECH Zoology Models
Product Brochure
Packaging Type | Box |
Model Name/Number | VT-DWT |
Brand | V-Tech |
Color | White |
Country of Origin | Made in India |
Media Pouches | Sterile Bottle |
Instrumentation , 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.
Digital Photo Colorimeter 407
Product Brochure
Brand | VTECH |
Voltage | 220V |
Power | 1-3kw, 3-6kw |
Country of Origin | Made in India |
Display | Digital |
Model No / Item Code | VT-407 |
Usage/ Application | Color Measurement, Industrial Use |
Weight | 10-20kg |
Power Source | Electric |
Automatic Grade | Semi Automatic |
A completely sensitive photo sensor, modern IC technology and various other techniques and features makes these Digital Photo Colorimeters a valuable and long-term investment for the clients. For carrying out the analysis, minimum 1 ml. of sample needs to be taken. For enhancing the life of the photocell, an option for switching on the light is provided. Due to the accurate results obtained, these Digital Photoelectric Colorimeters are used in blood chemistries in chemical/clinical labs, pharmaceutical industries, medicine plants, water treatment plants and agriculture universities, etc.
Digital Photo Electric Colorimeter
Product Brochure
Brand | VTECH |
Display | 21/2 digit LED |
Model No / Item Code | VT-08 & VT-09 |
Filter Range | 8 Filters in VT-08 |
Country of Origin | Made in India |
Light Source | 6.8V, 250mA Lamp |
Measurement Range | 400 nm to 700 nm |
Power | 230V +- 10%, 50 Hz AC |
Resolution | 0.01 A |
Detector | Photodiode |
Wavelength Range | 400-700 nm |
Calorimeters that combine convenience in operation with high precision and
accuracy in analysis. High standard glass lters covering complete visible
range of 400-700nm. are mounted on a rotating disc. Highly sensitive photo
sensor and use of latest IC technology make the instruments highly rugged,
accurate and economical in maintenance. A minimum sample volume of 1 ml.
is required to carry out the analysis. Provision has been made to switch-on the
lamp source only when required, thereby increasing the life of the photo diode.
These Digital Photo Colorimeters are extremely useful for quantitative estimation of several chemical substances including blood chemistries in chemical/clinical laboratories, pharmaceutical industries, medicine plants, water treatment plants, agriculture universities, etc.
Features
- Highly Stable & Accurate
- Range 400 to 700 nm
- Sample Volume 1 ml.
- High Standard Glass Filters
- Battery/Mains Operated Colorimeters are also available
Plant Herbarium Press
Product Brochure
Country of Origin | Made in India |
Brand | V Tech |
Material | Wooden |
Shape | Rectangular |
Size | 12 x 18 inch |
Usage/Application | Laboratory |
Instrumentation , 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.
Hall Effect Experiment
Product Brochure
Usage/Application | Laboratory Experiment |
Brand | V-Tech |
Material | Stainless Steel |
Automation Type | Semi-Automatic |
Color | Grey |
Electrode Material | Electronics |
Specifications:
(a) Hall Probe (Ge Crystal);
- Material: Ge single crystal n or p-type
- Resistivity: 8-10 Ωcm.
- Contacts: Spring type (solid silver)
- Zero-field potential:<1mV (adjustable)
- Hall Voltage: 35-60mV/10mA/KG
(b) Hall Probe (InAs)
- Contacts: Soldered
- Rated Control Current: 4mA
- Zero Field Potential:<4mV
- Linearity (0-20KG): ±0.5% or better
- Hall Voltage: 60-70mV/4mA/KG
Hall Effect Set-up (Digital), DHE-21
DHE-21 is a high performance instrument of outstanding flexibility. The set-up consists of a digital millivoltmeter and a constant current power supply. The Hall voltage and probe current can be read on the same digital panel meter through a selector switch. It consists of the following:
(i) Digital Microvoltmeter:
- Range: 0-200mV (Resolutio 100μV)
- Accuracy: ±0.1% of reading ±1 digit
- Impedance: 1Mohm
- Display: 3½ digit, 7segment LED
(ii) Constant Current Generator:
- Current: 0-20mA (Resolution 10μA)
- Display: 3½ digit, 7segment LED
- Accuracy: 0.25%; ±1 digit
- Load regulation: 0.03% for 0 to full load
- Line regulation: 0.05% for 10% variation
Instrumentation , 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.
Hydrodynamics Of Packed Bed
Automation Grade | Automatic |
Product Type | Biochemical Analysis |
Floor Area | 0.75 m x 0.75 m |
Material | Mild Steel |
Power | 500 W |
Voltage | 220 V |
Phase | Single |
Hydrodynamics of Packed Bed the set up is capable to study the loading and flooding characteristics. It is a packed column packed with Raschig Rings where the Air is counter currently fed to column. Liquid holdup in the column increases the weight of column and also reduces the effective porosity of packing. This reduction in porosity decreases the gas velocity, increases the pressure drop and changes the value of mass transfer co-efficient. The water is fed from the top of the column and loading & flooding characteristic are observed on various flow rates of Air and Water.
Scope Of Experimentations:
- To study the loading and flooding characteristics in a packed column
Utilities Required:
- Compressed Air Supply at 2 Bar, 2.5 CFM
- Water Supply and Drain
- Electricity 500 watts, 220 V, 1 Phase
- Floor Area 0.75 m x 0.75 m
Instrumentation , 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.
Notch Apparatus
Minimum Order Quantity: 1 Piece
Brand | V TECH |
Material | Mild Steel |
Model Number | VT 0863 |
Capacity | 100 L |
Storage Tank Size | 300 mm x 300 mm x 1200 mm |
Sump Tank Size | 750 mm x 750 mm x 600 mm |
Phase | Single Phase |
Voltage | 230V |
Additional Information:
- Delivery Time: 1 week
Digital Photo Colorimeter
Product Brochure
Minimum Volume | 1 ml |
Country of Origin | Made in India |
Display | 2 Display Digit |
Model No / Item Code | VT-402 |
Accuracy | +-0.02 OD |
Brand | VTECH |
Wavelength Range | 400-700 nm |
The use of high class standard wide range glass filters covering 400 to 700 nm give extremely good results. The filter setting is controlled by a rotating disc having 8 filters. It has Accuracy of +-0.02 O.D./Abs. and minimum sample volume of 1 ml is required to carry out the analysis. It has Auto Zeroing facility. An automatic shutter is provided to stop the light reaching the photocell, when test tube is not inserted in the tube holder. This increases the life of photocell tremendously.
Microprocess Auto Colorimeter
Product Brochure
Filter Range | 400 nm to 700 nm |
Display | 16 Characters x2 Lines Alpha Numeric LCD Display |
Detector | Photo Diode |
Country of Origin | Made in India |
Model No / Item Code | VT-401 |
Accuracy | +-0.02 OD |
Light Source | 6.8V, 0.3 Amp. Tungsten Lamp |
Brand | VTECH |
Power | 230V +- 10%, 50 Hz AC |
Filters | 8 Standard Glass Filters |
Stability/ Repeatability | +-0.01 O.D./ Abs. |
for Photo Colorimeter analysis of any concentration. The output is available on 16x2 lines alpha numeric LCD display in terms of %Transmission (%T) & Absorbance (Abs. ). The use of microcontroller has made it extremely versatile and state of the art
instrument.
This Microprocessor Auto Photo Colorimeter operates at wavelength between 400 to 700 nm range. The use of high standard wide range glass filters covering 400 to 700 nm in the monochromator gives extremely good results. The filter setting is controlled by a rotating disc having 8 filters. An automatic shutter is provided to stop the light reaching the sensor, when test tube is not inserted in the tube holder. This increases the life of sensor tremendously.
Features
- Highly Accurate, Stable & Easy to Operate
- Auto Shutter
- Auto Zeroing Facility
- Range 400 to 700nm.
- Soft touch Membrane Keys
- Transmission & Absorbance Modes
Balance Cell Photo Colorimeter
Product Brochure
Model No / Item Code | VT404 |
Light Source | 6.3V, 300mA |
Display | 31/2 Digit LED display |
Minimum Volume | 4ml |
Accuracy | +- 1% F.S. |
Filter Range | Blue (440nm.), Green (540nm.) & Red (660 nm.). |
Power | 230V +-10%, 50 Hz AC |
Brand | VTECH |
Sample Volume | Less than 4 ml |
Scale | 0-1000 Scale (Absorbance Scale) |
FEATURES:
- Highly Accurate,
- Stable & Easy to Operate
- <4.0 ml.Sample Volume
- Range 0 to 1000 KLETT Units
- Blue, Green and Red Filters
Aniline Point Apparatus
Product Brochure
Brand | V TECH |
Material | Aluminium Alloy |
Model Number | VT445 |
Warranty | 10 month |
Country of Origin | Made in India |
Packaging Type | Box |
Features :-
- Aniline point apparatus as per IP 2 & IS 1448 (P-3), ASTM D 611 method a a complete with jacket (without thermometer)
- Aniline point apparatus as per IP-2 method ''''B'''' ASTM D 611 by thin film method B Electrically heated with elec. stirrer (without thermometer) *spare tap *spare contraction chamber *spare metal stirrer
- Aniline point apparatus as per IP-2 method ''''D'''' by U-tube method electrically heated with FHP stirrer (without thermometer) *spare ''''U'''' tube * Aniline point thermometer IP 20C * Aniline point thermometer IP 21C
- Dean and Stark apparatus for estimation of moisture in lubricating oils as per IP-74, ASTM D 95 with one 10 CC receiver Flask, condenser with clamp holder and Heater with energy regulator.
Instrumentation , 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.
Human Skeleton Model
Minimum Order Quantity: 1 Piece
Product Brochure
Country of Origin | Made in India |
Brand | V-Tech |
Material | PVC Plastic |
Model No | VT |
Warranty | 3 Years |
Instrumentation , 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.
V- Tech Microscopes VT
Product Brochure
Brand | V-Tech |
Usage/Application | MOBILE /COMPUTER , LAPTOP REPAIRING |
Model Name/Number | VT 75S, VT 3034, VT 3535 , VT 75T |
Material | Metal |
Magnification | 45X, 50X |
Illumination | LED |
- VT-3035 BINOCULAR MICROSCOPE
- VT-75S MICROSCOPES
- BOOM STAND MICROSCOPES
- VT-3535 MICROSCOPES
- VT-75T TRINOCULAR MICROSCOPES
- VT- 75T MICROSCOPE
- VT-75T 3D MICROSCOPE
Instrumentation , 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.
CHEMICAL OXYGEN DEMAND (COD) Test Kit
Product Brochure
I Deal In | New Only |
Country of Origin | Made in India |
Model Name/Number | VT 407 |
Range | 40 to 400 mg/l as COD |
Because of dicromate ions specific oxidant properties, CrO ²-) unique chemical properties it gets reduced to the chromic ion (Cr³+) in COD test.
COD is a defined test, the extent of sample oxidation can be affected by digestion time, reagent stregnth & sample COD concentration.
COD is often used on a measurement of pollutants in waste water & natural water.
To determine COD two methods are useful, the open reflux method is suitable for a wide range of waste water & large sample size is prefferred. Another is the closed reflux method is suitable for smaller quantities. It requires homogenisation of sample. Accurate measurement of sample values as well as reagent volumes and concentration are critical.
Instrumentation , 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.