Alpha-1502 UV/Visible Spectrophotometer

The Alpha series are single beam, general purpose instruments designed to meet the needs of the Conventional Laboratory. They are ideal for various applications, such as: Clinical Chemistry, Biochemistry, Petro chemistry, Environmental Protection, Food and Beverage Labs, Water and Waste Water Labs and other fields of quality control and research.

The Alpha Series features a LCD display of photometric result, easy operation and wavelength range of 200-1000nm, these instruments are ideal for measurements in the ultraviolet and visible wavelength region of the electromagnetic spectrum.

The spectrophotometer consists of five parts:

Halogen and deuterium lamp to supply the light;
A Monochromator to isolate the wavelength of interest and eliminate the unwanted second order radiation
A sample compartment to accommodate the sample solution
A detector to receive the transmitted light and convert it to an electrical signal
A digital display to indicate absorbance or transmittance. The block diagram below illustrates the relationship between these parts.
In your spectrophotometer, light from the lamp is focused on the entrance slit of the monochromator where the collimating mirror directs the beam onto the grating. The grating disperses the light beam to produce the spectrum, a portion of which is focused on the exit slit of the monochromator by a collimating mirror. From here the beam is passed to a sample compartment through one of the filters, which helps to eliminate unwanted second order radiation from the diffraction grating. Upon leaving the sample compartment, the beam is passed to the silicon photodiode detector and causes the detector to produce an electrical signal that is displayed on the digital display.

The Alpha Series incorporates an USB1.0 for connecting to a PC via the Application Software and a RS232 port for the built-in thermal printer.

Wavelength Range 200-1000nm
Spectral Band pass 4nm
Wavelength Accuracy +2 nm
Wavelength Repeatability ≤1nm
Stray Radiant Energy ≤0.1 @ 220 and 340nm
Photometric Range 0 to 125%T -0.3 to 2.5 Abs -9999 to 9999
Photometric Accuracy ±0.5%T(0~100%T)
Data output USB1.0 and Optional Built in Printer
Power Requirements 85-240Vac, 50-60 Hz
Dimensions 570W x 460D x 230H (mm)
Light Source Tungsten Halogen/Deuterium
Weight 14.2kg

Brosur

34. Alpha-1502 Spectrophotometer