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Spectrophotometer


Model: HO-SPE-3000S & HO-SPE-3000S UV
High wave length resolution
Solid, Liquid & Thin film samples

Holmarc’s HO-SPE-3000S & HO-SPE-3000S UV are entry level spectrophotometers suitable for education, research and industrial applications. Unlike other entry level spectrophotometers, it employs classic Czerny - Turner monochromator design, normally available only with advanced models, which ensures low stray light. It uses 1200 lines/mm blazed holographic grating as the dispersion element providing high wavelength resolution. It also employs a sigma delta ADC of 16 bit resolution for photometric measurements, a resolution higher than most of the spectrophotometers available in this price range. A graphics LCD screen is used to plot an absorbance v/s wavelength graph. The data can then be analyzed for peaks and valleys.

Customized accessories are available to address individual application requirements. In a spectrophotometer, the amount of light passing through the sample cell is measured by a photometer. The photometer delivers a voltage signal to the processing unit. The signal changes with the amount of light absorbed by the liquid changes. According to Beer's law, the amount of light absorbed by a medium is proportional to the concentration of the absorbing material or solute present. Thus the concentration of a colored solute in a solution can be determined in the lab by measuring the absorbance of light at a given wavelength.

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    Price ($)
    Model : SPE-3000S :     4,167.00
    Model : SPE-3000S UV :     5,000.00
    Wavelength
    Range :     380 to 1100nm (Model : SPE-3000S)
        190-1100 nm (Model : SPE-3000S UV)
    Resolution :     0.1 nm
    Accuracy :     ± 0.5 nm
    Spectral bandwidth :     2 nm
    Transmittance
    Range :     0 to 100 %
    Resolution :     0.1 %
    Accuracy :     ± 0.2 %
    Noise Level :     < 0.1 %
    Stability :     +/- 0.25% / Hr after warm-up
    Absorbance
    Range :     0 to 2.5 A
    Resolution :     0.001 A
    Concentration
    Range :     0 to 999
    Selectable resolution 1, 0.1, 0.01 or 0.001
    Calibration with 1 or 2 known standards
    Thin Film characterization
    Film Thickness range :     100 nm - 3.5 μm
    Absolute Transmittance / Reflectance range :     0 - 100%
    Precision typically for SiO2 on NSF - 66 :     ± 1 nm
    Standard Sample for calibration :     ITO thin film
    Measuring modes :     Curve fitting / Regression Algorithms
    Dispersion formulas :     Cauchy’s, Sellmeiers & Empirical Models
    Material Library :     Extendable Material user library
    Readout :     320 x 240 Pixel Graphics LCD / 7” Touchscreen
    PC Interface :     RS 232 USB
    Light Source :     Quartz Halogen Lamp 20W & 20W Deuterium / Quartz Halogen Lamp
    Spectrum
    Direct factor entry
    Multiple method memory
    Any range between 380 to 1100nm for Model : SPE-3000S    &    190-1100 nm for Model : SPE-3000S UV
    Selectable scan wavelength interval of 1 to 50nm
    Live absorbance plot during scanning
    Plot browser to read absorbance values at each wavelength
    Analyzer to find out absorbance and wavelength of peaks and valleys
    Input Voltage :     230V 50Hz
    Input Power :     < 50 W
    Size :     530 (w) x 330 (d) x 175 (h) mm
    Weight :     27Kgs (Approx)

        Thin Film Thickness and Refractive index measurement
        Accurate Absorbance, Concentration & Kinetics measurement
        Fast and Easy measurement with Touch screen
        User selectable scanning speed and interval
        Live plotting of parameters on Display and PC
        Reaction kinetics
        Peak finder and smoothing function
        Solid and liquid sample holder
        Rotatable sample holder and detector

Fig. Optical Layout of Spectra HO-SPE-3000S Spectrophotometer



Scanning Mode Features

    Wavelength range between 380 to 1100nm for Model : SPE-3000S & 190-1100 nm for Model : SPE-3000S UV

    Selectable scan wavelength interval 1 to 50nm

    Live absorbance plot during scanning

    Plot browser to read absorbance values at each wavelength

    Analyzer to find out absorbance and wavelength of peaks and valleys


Customized accessories are available to address individual application requirements. Model SPE-3000S comes with 10 mm path length cuvettes. Cuvettes of smaller path lengths are available as optional accessory.


For most (99%) absorbance measurements 10 mm pathlength cuvettes are suitable. Cuvettes of shorter pathlengths allow the measurement of concentrated samples without dilution.


Optional Accessories
1. Motorized sample rotation stage - $. 784.00
2. Peltier & Sipper system 5 degree to 75 degree - $. 2500.00

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