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Microprocessor Photo Colorimeter

Microprocessor Photo Colorimeter is a compact and easy to operate instrument for Photo Colorimeter analysis of any concentration. The output is available on a 16 x 2 line alphanumeric backlit LCD display in terms of %Transmission (%T), Absorbance (Abs.), Concentration (Conc.) and K Factor. This instrument has 100 sample storage memory and printer output facility for printing data with any dot matrix printer. The use of microcontroller has made it extremely versatile and accurate instrument. 10 mm path length matched test tubes are used for sample and blank. 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. 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. Facility has been provided to store the last K Factor and the standard concentration value. User can also enter any known ‘Factor’ for a test, thereby eliminating the need to re-run the standards again and again.

Specifications

Wavelength Range400 - 700 nm  
Resolution%T: 1, Abs: 0.01, Conc.: 0.01, K Factor: 0.01  
Photometric Range%T: 0 - 100, Abs: 0 - 1.99, Conc.: 0 - 1999, K Factor: 0 - 1999  
DetectorWide range Silicon Photodiode/Photocell  
Display16 x 2 line alphanumeric backlit LCD display  
KeyboardSoft Touch Membrane Keys  
Data StorageUp-to 100 Samples (0 - 99)  
Light Sources6.8 V, 0.3 Amp Tungsten Lamp  
Sample System10 mm path length matched glass test tube  
Filters400, 450, 490, 520, 540, 570, 620, 680 nm  
Printer InterfaceCentronics Parallel Printer interface for Dot Matrix Printer  
Serial InterfaceRS-232C interface (optional available on request) 
Power230 V ± 10% AC, 50 Hz  
Dimensions(L x B x H) 240 x 254 x 90 mm (Approx.)  
Weight2.5 Kg (Approx.)  

Accessories

Matched Test Tube: A set of 5, Spare Lamp, Mains Lead, Operation Manual and Dust Cover.

Gas Tap, Regular

Description

Made of brass with superior black powder coating. Regular construction having lever handle with locking arrangement to ensure lever rotation does not go beyond 90°. Output nozzle having 4mm bore. Inlet 3/8 X 26. Flange diameter 50mm with two holes to fix on bench or any other surface with screws. Provided with adapter (6/8, 3.8mm bore) and corresponding nut (8mm bore). Designed to operate at pressure up to 2 psi (0. 14kg/cm2). Suitable for use with coal gas, natural gas and L.P.G.

Particulars

Gas Tap, One Way Gas Tap, Two Way Gas Tap, Three Way Gas Tap, Four Way

Specific Gravity Specimen Cylinders with Hooks

For specific gravity determinations. Each cylinder is 5 cm. long and 13 mm. diameter. Metals included are of aluminium, steel, brass and copper. Available in set or individually. Set of Four 13mm. Aluminium Copper Brass Steel
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Pulleys

Mounted in metal frame, with two hooks and accurately centered alingned. Single Double Double Triple Triple 2 Hooks Parallel Long Parallel Long

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.

Hydraulic Drum Brake Actual Working Single Drum

Suitably sectionised full size unit. Consisting of original parts such as :- master cylinder assembly, wheel cylinder, brake shoes, brake drums and necessary connections. Completed with operating lever and mounted on heavy iron stand.

Refrigeration Trainer Electrolux Type

This type of refrigeration is usually used for domestic purposes only as it is complex in the construction and working. This type of refrigerator was developed in 1925 by Munters and Battzervan when they were studying at Royal Institute of Technology At Stockholm for their undergraduate course. This type of refrigerator was known as three fluid refrigeration system. The elimination of aqua pump from the absorption system with the complete absence of moving parts and work input. The main purpose of removing the pump was to make the machine noiseless. It uses refrigerant as a solvent s and an inlet gas for inlet of the system. The inert gas is continued to the lower side of system only by its system. It is possible to maintain the uniform pressure throughout the system and after sometime permitting the refrigerant to evaporator at low temperature corresponding to its partial pressure. In the high pressure side system (generator and condenser), there exists only the refrigerant which is subjected to total pressure of the system so that it is condensed by using normal cooling water as air as it is done in other system. The strong aqua ammonia solution is heated in generator by the application of external heat source. The water vapor carried with ammonia vapor is removed in separate form as shown in figure. Then the dry ammonia vapor is passed into the condenser and it is condensed by using external cooling source. The liquid ammonia flows under gravity in the evaporator and it evaporates. The mixture of hydrogen and ammonia vapor is passed into the absorber and the weak solution from aqua ammonia from the separator is allowed to follow into the absorber, through tray this weak aqua ammonia solution comes into contact with hydrogen separated. This strong solution is further passed to the generator and it completes the cycle.
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AJAX PRODUCTS TABS ALTERNATIVE

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Cross Staff

Description

The Cross-Staff was used at sea from the beginning of the 16th century until the first half of the 18th century. It was used to measure the sun's altitude, especially at the meridian passage. With the knowledge of the sun's declination, the mariner could then obtain his latitude. The staff is original, with the inscription. The cross pieces are replicas. Different cross pieces were used depending on the altitude. A different scale is on each side of the staff.

Solar System Model

Description

Illustrating the nine planets which revolve around the Sun. Satellites of the planets are also shown. Mounted on base with 12 zodiac signs

Human Ear, 3 Parts

Description

Two times enlarged, dissects into 3 parts, showing external, middle and internal portions. Ossicles and labyrinth can be taken out. On base with key card.
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Hall Probe

Ge single crystal with four spring-type pressure contacts is mounted on the printed circuit board. Four leads are provided for connections with measuring devices.A zero setting can be done by adjusting the spring contacts with the help of screw driver. Specifications: Material: Ge single crystal, n type Resistivity: 8 – 10 ?-cm Contacts: Spring type

Lubrication System Of An Automobile

In this model the working of lubrication system of a car is shown with the help of actual parts assembled on a metal stand. All the necessary parts of a lubrication system of a car are shown in actual working form. This model helps the student to understand the working of the lubrication system of a car very easily. It is specially made dissectible for demonstration purposes.

Echinodermata

Starfish Pedicellaria WM Starfish Tube Feet WM Starfish Arm TS

Seekers

Stainless Steel with blunt end Needle.
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AJAX PRODUCTS TABS WITH ICONS

Furniture
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  • Clocks
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Anaerobic Culture Jar

Description

Transparent Anaerobic Culture Jar of 3.5.lit. capacity which is made of Polycarbonate. The lid of the jar is made of Aluminum pressure die Casting fitted with Pressure Valve, Vacuum Valve, Safety Valve & compound Pressure cum vacuum gauge, three finger aluminum clamp and sealing "O" ring. This is recommended only where inside air of jar is removed thru vacuum pump and CO2 is filled in the jar thru CO2 gas cylinder to generate anaerobic condition in the jar. Also supplied with plain aluminum pressure die casted lid which can be fitted when readymade gas packs are used to generate the anaerobic conditions inside the jar. When readymade gas packs are used, there is no need of lid fitted with dial gauge etc., for extra life of equipment.

Rocks Collection

Description

A comprehensive collection of igneous , metamorphic and sedimentary rocks, in wooden box with partitioned tray containing 50 specimens, each nominally numbered and enclosed in a transparent plastics bag. Specimens may be removed from bags for detailed examination. Each specimen is labelled also on the inside of the box lid, indicating the geological name.
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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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