Description:

	Simple method to find the wavelength of laser using laser diode.
	Simple method to find the acceptance angle and numerical aperture of optical fiber.

Technical Specification

Diffraction Grating
	Diffraction grating area: 50 x 38 mm 25 x 25 mm
	diffraction grating 25000 lines per mm.
Optical fiber
	Operating Temperature:- -10~+40'C
	Storage Temperature:- -15~+85'C
	Output power (Po):- 5 mW
	Normal and maximum operating voltage is 2.2 and 2.7 respectively
	Threshold current in minimum, normal and maximum condition are 15, 20 and 30mA
	Operating current is 65 to 80mA
	Beam Angle deviation For both parallel and perpendicular condition its between -3 to 3 degree
	Beam divergence For parallel condition it's between 8 to 12 degree For perpendicular condition it's between 23 to 32 degree

Description:

Simple instrument to find velocity of ultrasonic waves in liquids.

Salient Features

	Model - M-84
	High Frequency Generator
	Mains Voltage - 220 V, 50 Hz
	Measuring frequency - 1-10,12 MHz (11 freq.)
	Glow lamp - 6.3 V, 0.3 amp.
	Fuse - 500 mA
	Weight - 3.5 kg approx.
	Measuring Cell
	Max. displacement of the reflector- 20 mm
	Required quantity of liquid - 5 cc
	Least count of micrometer - 0.001 mm
	Shielded Cable Length of connecting cable between the generator and the cell is 50 cm approximately

Technical Specifications

Simple instrument to find velocity of ultrasonic waves in liquids.

Description:

Simple instrument to find the wavelength of visible light, dispersive power, refractive index of prism etc

Salient Features

	The main structure is heavy cast metal, with bright plated fittings.
	The 150 mm diameter circle with protective plastic shield is fixed to the telescope movement and the table is attached to double ended vernier, which reads to 1 minute of arc.
	Both telescope and table of rotation fine adjustment screws and release of a clamping screw enables adjustments of both movements to be made by hand.

Technical Specifications

Collimator
	Mounted on fixed and fitted with 175mm focus achromatic objectives, 25 mm clear aperture. Also fitted is a unilaterally adjustable slit 7 mm long.
Telescope
	Mounted on movable pillar and fitted with 175 mm Focus achromatic objectives, 25 mm clear aperture. Also fitted is a 8x rams den eye pish and a glass cross line graticule. Both the telescope and collimator and rack and pinion arrangement.
Prism Table
	Table is marked with lines
Standard accessories
	1 Prism Clamp, 1 diffraction grating holder, 1 magnifier, 1 wooden case

Description:

Simple apparatus to measure thermal conductivity in bad conductors

Features & Specifications

	Complete setup with copper boiler
	Brass metal disc and steam chamber
	Retort stand
	Non conducting discs or any thin insulating material etc
	Electric heating mantle with 2, 4, 6, 8, 10, volts 3 ampere
	Two mercury thermometers 250 Celsius
	Patch Chords to connect the heater(0.5 diameter)
	Stop clock, screw gauge, vernier caliper

Description:

Simple apparatus to find young's modulus of the given beam.

Specification:

	Wooden beam-box wood
	Metal pin
	Weights and arrangement to hang weights with a knife edge
	Travelling microscope - Technical Specification
	Objective: high resolution FL 75mm
	Eyepish: Rams den 10 xs with cross hair
	Horizontal scale: 220 mm graduated in 1/2 mm division with every centimeter numbered.
	Vertical scale: 150 mm graduated in 1/2 mm division with every centimeter numbered
	Vernier: reading 0.01 mm

Description:

Energy band gap kit is used to calculate energy band of semiconductor diodes like silicon

Features & specifications

	Energy band gap kit with inbuilt semiconductor diode (silicon) immersed in oil bath placed on heater. ( heater having knob to adjust temperature)
	Energy band gap kit with inbuilt DC supply shown on analog voltmeter & current through silicon diode on analog current meter
	Thermometer insert provision to check temperature of oil bath

Description:

Simple method to find the coefficient of viscosity of liquids

Salient Features

	Burette (1cm diameter,1m long with nozzle)
	Glass rod(1mm diameter)
	Rubber tube(10.5 inch diameter)
	500 ml water
	100 ml beaker

Technical Specification

	Objective: high resolution FL 75mm
	Eyepiece: Rams den 10x with cross hair
	Horizontal scale: 220 mm graduated in 1/2 mm division with every centimeter numbered .
	Vertical scale: 150 mm graduated in 1/2 mm division with every centimeter numbered
	Vernier: reading 0.01 mm

Description:

Simple method to find the thickness of thin wires.

Technical Specification

	Sodium Vapor lamp Source (35W) with transformer operating at 220V, A.C, 50Hz
	Housing for the sodium vapor lamp with long vertical source-l slits on four sides.
	Travelling microscope (3 motion, LC = 0.001cm)
	Slit wooden box for Air-wedge arrangement [for a pair of optically flat Air- wedge glass plate arrangemement] of size 7cm long and 2.5 cm wide, with groove to a plane glass plate at 45 deg.
	A pair of optically plane Air-wedge glass plates(7cm long and 2.5 cm wide, approx ) for air- wedge experiment

Description:

Simple apparatus to find rigidity modulus and moment of inertia

Features & Specifications

	Diameter of Metal disc-13 cm
	Mass of disc-1.23 kg
	Disc-brass metal
	Suspension wire- wrought iron
	Chunks-brass metal

Description:

Simple apparatus used to find energy loss in magnetic materials

Technical Specification

Operating mode	Y 1, Y 2, ALT, CHOP, ADD, X-Y
Deflection Factor(Y1 or Y2)	5 m V / div~20 V / div in 1-2-5 sequence, altogether 12 steps. Error <3%
MAG Rate	x5 Error < 5%
Frequency Bandwidth	AC: 10 Hz~30 Hz-3 dB DC: 0~30 MHz-3 dB
Frequency Bandwidth by MAG	AC: 10 Hz-5 MHz-3 dB DC:0~5 MHz-3 dB
Rising time	<18nS, <70ns by MAG
Overshot	<5%
Damp	<5%
Coupling Mode	AC DC
Input Impedance	1+-5% M O < 30 pF (direct) 10+-5% M O < 23 pF (by probe)
Max Safe Voltage	400 V (DC ACp-p)
Slope Inverting	Y2 Only

Range	5 Ranges, 20us.200 us, 2ms, 20ms, 200ms
Resolution	0.01 us
Accuracy	1%FS +- 1 digit
Temperature	Adjustable with indication on display
Compensation	0-50 0C
Display	3 1/2 digit LED display
Power	230 V +-10% AC, 50 Hz
Diamensiona	65 x 243 x 180 mm
Weight	2Ks (Approx)
Accessories	Conductivity cell ,

PH Range	0 to 14.00 PH
Resolution	0.01 PH ; 1mV
Repeatability	+- 0.01 PH +- 1 digit; & 1mV +-1 digit in 1mVs mode
MV Range	0 to +- 1999mV
Temperature Compensation	0 to 100'C
Display	4 digit LED with automatic polarity and decimal indications
Power Requirement	230 V. 50 Hz , A.C.
	Combined electrode
	Electrode stand with clamp
	Buffer tablet

Description:

Resolution	1 mV
Accuracy	0.5 %
Input Impedance	> 100 Meg Ohms
Polarity	- is indicated
Range	+/- 1.999 Volts
Over Range Indicator	'1' and the last 3 digit will be blank.

Description:

System Package	Main unit type 130 and Compressor type 126
Sensitivity
Sodium (Na)	2 ppm
Pottasium (K)	1ppm
Lithium (L)	7ppm
Calcium (Ca)	30 ppm
Accuracy	+-2 % of FSD
Display	2 1/2 Digit LED
Minimum Sample Volume	3.5 ml
Aspiration Time	30 Sec (Approx)
Air Supply Pressure	0.3 To 0.6 Kg /Cm2
Power Requirement	230 V, +- 10%, 50 Hz, 10VA (Approx)
Dimension
Main Unit	275 (W) x 270 (H) x 235(D) mm
Compressor	215 (W) x 235 (H) x 255(D) mm
Weight
Main unit	4.5 Kg (Approx)
Compressor	7 Kg (Approx)
Standard accessories	a) Na and K filters
	b) Gas and air tube

Wavelength
Range	340 to 990 nm
Accuracy	+-2.0nm
Readout	3 digit,1 nm step
Bandwidth	5.0 nm
Photometric
Range	-0.3 to 2.5 A bs
Accuracy	+-0.005 A bs at 1.0 A bs
Resolution	0.1 % T,0.001A
Readout	4 digit LED
Drift	+-0.003 A bs /hour at 500nm
Noice	+-0.001 near 0.00A, +-0.002 near 1.00A
Grating	600 lines/mm
Source	Tungsten Halogen lamp
Detector	Silicon photodiode
Sample Holder	Two position manual sample changer or factory installed single position holder for 50 mm path length cell.
Min .volume	1 ml in 4 ml cuvette
Measuring Modes	i) % Transmittance ii) Absorbance iii) Concentration iv) K factor
K- Factor Range	0.000 to 9999 with floating Decimal point
Conc.Range	0.000 to 9999 with floating Decimal point
Power	230V, +-10%,50 Hz,65 VA (Approx)
Dimension	420 (W) x 310 (D) x125 (H)mm
Weight	6.5Kg (approx.)
Accessories
Standard	i) Two 10 mm glass cuvettes
Optional	i) Single position 40 mm /50 mm path length cell holder, factory installed

Chamber size	350 (L)x350 (B) x350(H) mm
No of trays	2
Watts	1000W
Approx Lr	45
Temp	above 50 to 250'C

	Precise and even heat distribution
	Safe for operator and samples
	Removable stainless steel shelves
	Over heat and over current protection
	Double walled construction
	Noise-less fan

	Magnetic stirrer with electronic speed control
	Capasity : 2 Ltrs

Brand name	Sigma
Capacity	1 Li
Watts	300 W
Volts	230AC

Description:

Weighing capacity	220gm
Readability	0.001gm
Standard deviation	0.001gm
Linearity	0.002gm
Calibration weight	200 gm
Pan diameter (mm)	100 x 100 (with the guard)
Main body size (mm)	Approx 170 (W) x 240 (D) x 114 (H) mm
Main body weight	Approx 2.2 kg
Stability of sensitivity (10'C-35'C)	+-3 ppm/ 'C
Applicable temperature Range	5 ~ 40' C
Power supply	AC adapter : 100 - 250VAC, 47 ~ 63 Hz

Model	IN 200
Capacity	200 gm
Resolution	0.01gm
Display	Red LED
Pan	Stainless steel
Diameter	100mm
Power	12 Volt AC Adapter