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Stefan Boltzmans Apparatus

The Stefan Boltzmann constant is an important constant in heat transfer. The apparatus determines Stefan Boltzmann constant. The apparatus consists of a hemisphere surrounded by hot water. Hot water is obtained from a water-heating tank. When the blackened disc is inserted at the center of hemisphere, heat is transferred into the disc from hemisphere by radiation and its temperature begins to rise, and from temperature raise rate. (It is measured at the intervals of 5 sec.) Stefan Boltzmann constant is determined.

SPECIFICATIONS:

Water heating tank provided with electric immersion heater. Hemisphere made of copper sheet, 200mm. dia. Surrounded water jacket of 250mm. Dia. Test disc made of copper 20mm. dia. provided with thermocouple at the center. Multichannel digital temperature indicator 0-200 C with 0.1C least counts to measure the temperature of hemisphere and disc. Audible buzzer with timer to ring at every 5 seconds. A technical manual accompanies the unit.

SERVICES REQUIRED:

1.Bench area of about 1m. x 05m. at working height. 2.230v, 15A, AC, electric supply with earthing connection

Slotted Mas Set Iron

Made from iron shaft with slots painted in black color. Hanger and Mass each of 500 gm. Total weight 2.5 kg. Hanger and Mass each of 1 kg. Total weight 5 kg.

Angel Sum Property of Triangle

To teach sum of 3 angle of triangle is 180. This manipulative provided with cutout of angles from triangle. Provided with magnet at back to demonstrate on magnetic board. Measure: 21.5 x 21.5cm
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AJAX PRODUCTS TABS SIMPLE

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Concave Mirror, Spherical

Description

Optically worked, back silvered, with protective coating.

Focal length Add To Enquiry  
50 mm 75 mm  
50 mm 100 mm  
50 mm 150 mm  
50 mm 200 mm  
50 mm 300 mm  
60 mm 100 mm  
60 mm 150 mm  
60 mm 200 mm  
60 mm 300 mm  
75 mm 100 mm  
75 mm 150 mm  
75 mm 200 mm  
75 mm 300 mm  

Coplin Jar

Polypropylene, can hold 10 slides of size 75x25mm. back to back. Domed & shallow thread screw cap provides protection to slides.

Wheatstone Bridge

Specification

• Four arms with one unknown arm to connect the unknown resistance • Two range selection arms provided to select the nearest range of unknown value. • Range of Measurement : 5Ω-100KΩ • Accuracy (Min to Max.) :±0.2 ± 5Ω • Tolerance : ±5% • Digital voltmeter (Range +5V to - 5V) is provided to indicate the Balance conditions • Built-in power supply

SILICA MUFFLE TRAYS (For VM Crucible)

PRODUCT DESCRIPTION:   Available in 2types:  Two Hole, 39mm Length Four Hole, 76mm Length
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AJAX PRODUCTS TABS ALTERNATIVE

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Digital Coating Thickness Meter

Description

Digital Coating Thickness Meter We offer high quality of Digital Coating Thickness Gauge. Statistics (Number of readings, average, Std. deviation, max. ,; min.) are updated with every reading and displayed simultaneously. It helps to decide how many readings are to be taken. Continue taking readings till you start getting reasonably consistent statistics.

Transistor Char Appt

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Porifera

Grantia TS Grantia LS Sponge Spicule WM Sponge gemmule WM Sycon TS Sycon LS

Adjustable Slit

Description

A 75 mm diameter circular metal disc with 12.5 mm central aperture. A screw controlled spring loaded precision slit is mounted on one side of the disc. Max opening 4 mm wide and 10-12 mm long.
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AJAX PRODUCTS TABS ARROWS PAGINATION

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Pilot Static Tube Set Up

DESCRIPTION:-

A Pitot tube is used to measure the local velocity at a given point in the flow stress. A Pitot tube of standard design made of copper / SS is supplied and is fixed below Vernier scale. The Vernier scale is capable to measure the position of Pitot tube in transparent pipe section. The pipe has a flow control valve to regulate the flow. A U-tube manometer is provided to determine the velocity head. Present Set-up is self-contained water re-circulating unit, provided with a sump tank and a centrifugal pump etc. Flow control valve and by-pass valve are fitted in water line to conduct the experiment on different flow rates. Flow rate of water is measured with the help of measuring tank and stop watch.

EXPERIMENTS:-

Ø To find the point velocity at the center of a tube for different flow rates of water and calibrate the Pitot tube Ø To plot velocity profile across the cross section of pipe

UTILITIES: –

Ø Water Supply & Drain Ø Electricity Supply: Single Phase, 220 VAC, 0.5 kW

TECHNICAL SPECIFICATION: –

Ø Pitot Tube : Material Copper/SS of compatible size fitted with Vernier Scale Ø Test Section : Material Clear Acrylic, Compatible to 1” Dia. Pipe Ø Water Circulation : FHP Pump, Crompton / Sharp make Ø Flow Measurement : Using Measuring Tank, Capacity 40 Ltrs. Ø Sump Tank : Capacity 70 Ltrs. Ø Stop Watch : Electronic Ø Control Panel : On / Off Switch, Mains Indicator etc. Ø The whole Set-up is well designed and arranged in a good quality painted Structure

Angel Sum Property of Quadrilateral

To teach sum of 4 angle of quadrilateral is 360°. This manipulative provided with cutout of angles from Quadrilateral. Provided with magnet at back to demonstrate on magnetic board. Measure: 26cm x 18cm

Lux Meter

Description

Range : 0-50000 LUX in three steps Accuracy : ± 5% Least Count : ± 2 Display : 3 ½ digits, 7 segment LCD type. Sensor : Separately attached light sensor allows user to take measurements at an optimum position.
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AJAX PRODUCTS TABS WITH ICONS

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Kidney With Bladder

Description

Natural size kidney, ureters, adrenal glands and bladder with prostate as well as the large abdominal right kidney sectioned to show all anatomical details. mounted on base.

Burner Bunsen – Semi Micro

Description

Nickel plated burner tube with rotatable air regulator on enamelled die casted base with a tapered riffled gas inlet.
Burner tube dia. 10 mm and height 60 mm.
Base dia. 80 mm
Overall height 95 mm and inlet tube 10 mm dia.

Grease Spot Photometer

Description

Comprises a waxed paper screen with a wax free central zone mounted on a black metal frame 100 x 75 mm, with a central aperture of 51 mm diameter mounted on rod.

Rotary Air Compressor Test Rig

The Apparatus consists of a rotary vane compressor driven by an electric motor; Air intake is measured by an orifice meter and manometer, Discharge “pressure is measured by a pressure gauge. Power input of the compressor measured by an Energymeter. Thus the students can determine volumetric efficiency, power consumption and free air discharge of compressor.

SPECIFICATIONS:

1.Vane compressor – Rotary compressor, driven by 3 HP motor. 2.Calibrated orifice meter with water manometer to measure air intake. 3.Energy meter to measure input of the meter. 4.Pressure gauge to measure discharge pressure. 5.Control valve at delivery side. 6.Stop clock. 7.A technical manual accompanies the unit.

SERVICES REQUIRED:

1.Floor space of approx. 1.5 X 1.5 m. X 1.5 M. height. 2.440V, 16A, 3ph. supply. 3.Tachometer.
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SILICA CRUCIBLE WITHOUT LID

PRODUCT DESCRIPTION
  • Crucible is glazed inside and outside.
  • Highly resistant to alkalis and hot temperatures
  • 50ml capacity
  • Outside diameter 55mm, 42mm height
  • No lid includedSilica crucible is glazed inside and outside. Highly resistant to alkalis and hot temperature SIZES ARE: 15ML 25ML 50ML 80ML 100ML 150ML

SILICA CRUCIBLE TALL FORM Without Lid, Translucent

PRODUCT DESCRIPTION -Without lid, translucent, glazed - Ordinary type lids to be purchased separately Size/ dimension:
  • 20ml,  Dia. 35mm x Ht. 38mm
  • 30ml, Dia. 43mm x Ht. 38mm
  • 50ml, Dia. 51mm x Ht. 51mm

SILICA MUFFLE TRAYS (For VM Crucible)

PRODUCT DESCRIPTION:   Available in 2types:  Two Hole, 39mm Length Four Hole, 76mm Length
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AJAX PRODUCTS TABS CAROUSEL

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