Double Beam UV-VIS Spectrophoto Meter

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Double Beam UV-VIS Spectrophoto Meter Specification

Temperature Range
Room Temperature Operation

Frequency
50 Hz

Voltage
220 V 10%

Automation Grade
Semi-automatic

Model No
SL-159

Power Source
220V AC

Core Components
Optical System, Xenon Lamp or Deuterium Lamp, Silicon Photodiode Detectors

Feature
High sensitivity, fast wavelength scanning, USB interface, inbuilt printer support

Capacity
1 cm Quartz Cell (Standard), 10 mm path length

Measurement Range
190 nm - 1100 nm

Accuracy
0.3% T

Equipment Materials
High-quality ABS/plastic outer body, precision optics glass

Type
Double Beam UV-VIS Spectrophotometer

Usage
Quantitative and qualitative analysis in laboratory, chemical, pharmaceutical, and biotech applications

Display Type
Large LCD Display (12864 Dot Matrix)

Dimension (L*W*H)
625 430 210 mm

Weight
Approx. 15 kg

About Double Beam UV-VIS Spectrophoto Meter

Features

The True Double Beam UV-VIS spectrophotometer with advance circuit measurement and control system , make the instrument with hig realiability and low noise.

Excellent software design and procedure, make instruments have stronger spectral data processing function; Automatically scam measures spectra, multi wavelength (1 -3 Lamda) determination, kinetic determination, 1-3 curve fitting, 1-4 derivate spectra, access, displ;ay print spectra and analyze data.

Powerful window based software platform user-friendly, powerful, easy to store or output.

Unique installation of deuterium & Tungsten lamp, the design and working way of automatic light switch and finding the best location, allowing users to operate the instruments and maintain or replace light source in a more coinveninent, correct and safer way.

Specifications

Optical Sytem	Double Beam, Grating 1200 lines/mn
Wavelength Range	190 ~ 1100 nm
Spectral Bandwidth	1 nm
Wavelength Accuracy	0.3 nm
Wavelength Repeatability	0.1 nm
Photometric Accuracy	+ 0.3 % T ( 0 ~ 100 % T)
Photometric Repeatability	0.1 % T (0 ~ 100 % T)
Photometric Range	-4 A ~ 4A
Stray Light	0.05 % T
Stability	+ 0.001
Baseline Flatness	+ 0.001 A
Noise	0.0005 A
Scanning Speed	Fast/Medium/Slow
Wavelength Scanning	Auto
Keyboard	Membrance keypad
Light Source	Deuterium & Tungsten lamp
Display	320 * 240 LCD
Photometric Mode	T,A,C
Detector	Silicon Photodiode
Output	USB Port & Parallel Port (Printer)
Power	AC 220V/50 ?Hz or AC 110V/60 Hz

Premium Optical Performance

Equipped with a precision optical system using deuterium and tungsten halogen lamps, the SL-159 maintains baseline flatness within 0.001 Abs and wavelength repeatability under 0.2 nm for sharp, accurate results every time. The silicon photodiode array detector ensures rapid and stable data acquisition, making it suitable for sensitive laboratory work.

User-Friendly Operation and Versatility

A large dot-matrix LCD display makes navigation intuitive, supporting semi-automatic operation for efficiency. Automatic lamp changeover, USB/RS232 data output, and inbuilt printer support streamline workflows, while the 10 mm standard cuvette holder accommodates typical lab sample sizes. Its energy-efficient design consumes around 120 W, ideal for busy laboratory settings.

FAQs of Double Beam UV-VIS Spectrophoto Meter:

Q: How does the double beam configuration improve measurement accuracy in the SL-159 spectrophotometer?

A: The double beam design compares the sample and reference simultaneously, compensating for fluctuations in light source intensity and electronic drift. This configuration greatly enhances accuracy and reliability, particularly during long-term measurements in research and analytical labs.

Q: What types of samples and analyses can be performed with this spectrophotometer?

A: The SL-159 is suitable for both quantitative and qualitative analyses in a variety of fields, including laboratory, chemical, pharmaceutical, and biotech applications. It measures absorbance, transmittance, and concentration of liquid samples, using standard 10 mm pathlength quartz cells.

Q: When should I use the automatic lamp changeover feature?

A: Automatic lamp changeover seamlessly switches between the deuterium and tungsten halogen lamps during measurements, depending on the selected wavelength range. This ensures consistent, optimal illumination across the full measurement range of 190 nm to 1100 nm.

Q: Where can I store or export measurement data from the SL-159?

A: Measurement data can be conveniently exported through the spectrophotometers USB port or RS232 interface. The device also supports direct connection to a compatible USB printer for instant hardcopy results, improving data management in laboratory environments.

Q: What is the process for routine maintenance and calibration of this model?

A: Routine maintenance includes keeping the sample compartment clean, regularly inspecting the cuvette holder, and following the calibration procedures typically outlined in the instrument manual. The spectrophotometers robust design and automatic features minimize the need for frequent interventions.

Q: How does using this spectrophotometer benefit laboratory workflows?

A: With features like high sensitivity, fast wavelength scanning, baseline flatness, automated lamp switching, and versatile data output, the SL-159 streamlines laboratory workflows, enhances productivity, and reduces errors, making it ideal for high-throughput research and quality control settings.

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