IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

www.IetLtd.com Proudly serving laboratories worldwide since 1979

CALL +1.847.913.0777 for Refurbished & Certified Lab Equipment

Lab Junior Educational UV-VIS Spectrometer

K-MAC Lab Junior was developed for spectrum experiments for elementary and

high school students. With Lab Junior, the experiments class is ready with out extra

preparation.

▪ Light & optics education kit for students

▪3 modes in one system, Multi-use

-Absorbance & Transmittance mode

-Fluorescence & Reflectance mode

-Irradiance Mode

▪ Easy to use

▪ Reasonable price & superior performance

▪ Compact & Versatile

▪ Selected as an official experiment kit of 38th International Chemistry Olympiad (2006)

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Composition

Lab Junior consists of Detector, Light Source, Sample Holder, Program software and

other accessories.

Item Description Item

Detector SpectraView2100 SV2100L

Software Visual Spectra 2.1jr Visual Spectra 2.1Jr

Light Source Tungsten-Halogen Lamp TH2100L

Sample Holder 3-Way CuvetteHolder CH2100LLight

Lab Junior Kit

Everything is ready to start the experiment in one kit:

Detector, Light Source, Sample holder, Software and Accessories.

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Accessories

▪USB cable

▪Driver CD

▪Adaptor

▪CuvetteCell

▪Color Paper Box

▪Reflection Color Paper

▪Transmission Cellophane Paper

▪LED light sources

▪Grating

▪Light source holder

▪Hexagonal Wrench

▪Transport case

▪Manual

System Mode

Different Measurement Modes with Different Layouts :

The layout is changed for different measurement functions.

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

▪ Absorbance/Transmittance Mode The amount of absorbed or

transmitted light through a sampleis analyzed and separated according to wavelength as

spectrum.

▪ Fluorescence/Reflectance Mode The properties of a sample are

analyzed by fluorescence or reflected light from using a detector. The light source and the

detector are arranged at a right angle.

▪ Irradiance Mode A light source can be

changed and the experiments on light sources and luminaries are possible in this mode.

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Connection

▪Easy connection to PC via USB 2.0 (USB 1.1 compatible)

▪USB cable and Electrical cord enclosed

Operating Program

User-friendly interface with various colors and 3D pictures makes it easy and interesting

for students to use the program.

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Operate Absorbance, Transmittance, Reflectance and Irradiance with one program

Lab Junior S/W composition

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Hardware Operation

Lab Junior Spectrum

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Experiments with Lab Junior (I)

Absorbance/Transmittance Experiment

Student can study the properties of light and color with the experiment using a solution

filled cuvette or cellophane paper.

Absorbance/Transmittance Experiment

Experiment example

▪ Observe how transmittance light and absorbance light are different as penetrating

the light to color solution and discuss the principle how we can see colors by means

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

of the properties of light and color.

▪ Check and discuss the mixed ratio for each color of color solution and how the

color of solution changes as adding different color.

▪ Study the photosynthesis and transmittance of chlorophyll extracted tobacco

leaves and discuss the reaction between chlorophyll and light.

▪ Chemical experiments on determining the concentration of solution

▪ Experiments on the wavelength range of color

▪ Experiments on titration using acid-base indicator

▪ Experiments on the mixed ratio of solution

▪ Analysis experiments on the color and configuration of complex compound

Experiments with Lab Junior (II)

Reflectance/Fluorescence Experiment

Students can study the properties of light and color with the experiment using a solution

filled cuvette, reflective colored paper or gold color foil in reflectance/fluorescence

mode(right angel arrangement) of Lab Junior.

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Reflectance/Fluorescence Experiment Experiment example

▪ Observe how fluorescent ink emits the light in water the ink is dissolved and what

substances emit light around us. Also discuss the process how the substances emit

the light

▪ Reflect the light with colored paper, which doesn’t transmit the light and observe

how each color reflect the light. Discuss the principle how we can see colors as

understanding the properties of light and color

▪ Observe how the reflectance is affected by surface roughness and discuss why the

color we could see is changed by the roughness of surface.

▪ Determine the concentration of various fluorescent materials

▪ Experiments on comparing the roughness of reflective material surface

▪ Experiments on defining fluorescence material in mixed solution

▪ Experiments on determining the sedimentation of a solution.

Experiments with Lab Junior (III) Irradiance Experiment

Analysis the light of radiant substance and discuss how the properties of light are

different for each light in irradiance mode of Lab Junior.

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Irradiance Experiment

Experiment example

▪ Study the differences between sunlight and artificial light and between a

fluorescent lamp and an incandescent lamp. Also discuss how these differences

affect our eyes.

▪ Analysis the differences of warm and cool colors and discuss the factor of these

differences.

▪ Analysis the flame coloration as burning metal on an alcohol lamp and discuss the

color of each element.

▪ Study wavelength positions by color using LED light source and discuss what LED

light source is different from lamps with same color.

▪ Measure line spectrums and understand Fraunhofer lines with irradiance

experiments using the detector and a hydrogen discharge tube.

▪ Experiments on irradiance and wavelength range of various light sources.

Specification

SYSTEM

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Wavelength range 350~1080nm

Optical resolution ~2.5 nm FWHM

Integration time 1ms to 60 sec

Dimension Detector

118(W)X98(L)X35(H)mm

Light source 118(W)X98(L)X35(H)mm

CuvetteHolder 95(W)X95(W)X52(H)mm

LIGHT SOURCE

Spectral range 400nm ~ 850 µm

Power input 9V DC/500mA

Color temp 2,800K

Bulb Tungsten Halogen

Bulb lifetime 1,500 hours

Bulb output 70 Lumens

Connector SMA 905

OPTICAL BENCH

Optical entrance

Input round

Diameter: 0.5 mm NA =

0.22 mounted in

SMA-coupling

Slit Output linear 50 µm x 1000 µm

(standard) (optical

entrance)

Grating Flat-field, 600 lines/mm (center) Blazed at

500 nm (350 ~1000 nm)

Spectral Range 400 nm ~ 850 nm (Tungsten

Halogen lamp)

Resolution FWHM 2.3 ±0.2nm (standard slit)

Wavelength Accuracy ±0.46 nm (standard slit)

IET - Used Lab Equipment - Refurbished Analytical Laboratory Instruments

Sensitivity Range : 0.0 ~ 3.0 Abs. 0.0 ~ 125 %

Accuracy: < 1 % at 1 Abs. 4*10-3Abs Dark

noise < 2 mAbs. 30

counts/16383 counts

Stray Light < 0.05% at 600 nm < 0.10%

at 435 nm

DETECTOR

Producer Sony CCD array

Number of Pixels 2048 elements

Maximum clock rate 2 MHz

Current consumption 10 mA

Supply Voltage 5 V

Integration time 1 ms~ 60 sec

Effective Range 350~ 1080 nm

Proudly serving laboratories worldwide since 1979

CALL +1.847.913.0777 for Refurbished & Certified Lab Equipment