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Double Beam UV VIS Spectrophotometer L7/L8/L9

Brand MesuLab
Product Category Analytical Instrument
Texture of Wood Hardware+plastic
Product Usage Double Beam UV Visible Spectrophotometer
Model L7/L8/L9
Contact us
E-mail
Product Details

L7

Double Beam UV VIS Spectrophotometer

L7 11.jpg

Advantage

Double beam optical system; 8 inch color touch-screen

Automatic zero and full scale adjustment

Equipped with USB interface

Optional : UV WIN8 Spectrum data processing software / Thermal plotter


Main Features

Adopt blazed holographic gratings. Have outstanding test precision and very competitive price. Cutting-edge user interface, powerful functions, and easy operation.

With powerful functions, the equipment shows great performance in qualitative and quantitative testing , such as :

◆ Full spectrum scanning                              ◆ Linear regression

◆ Detailed spectrum scanning                      ◆ Concentration direct reading

◆ Time-based kinetics determination            ◆ Peak/Valley detecting

◆ Multi-wavelength measurement                 ◆ GOTO λ


Specifications

Model

L7

Monochromator type

Czerny turner

Focal length

160mm

Wavelength Range

190-1100nm

Band Width

1.8nm

Wavelength Accuracy

±0.3nm

Wavelength Repeatability

≤0.01nm

Photometric Display Range

0.0-200 .0% T / -0.301-4.000 A / 0.000-9999 C

Photometric Accuracy

±0.3% T(0-100%T) / ±0.002A(0-0.5A) / ±0.004A(0.5A-1A)

Photometric Repeatability

0.15% T(0-100%T) / ±0.001A(0-0.5A) / ±0.002A(0.5A-1A)

Photometric Mode

T,A,C,E

Stray Light

≤0.03% τ (220nm NaI, 360nm NaNO2)

Stability

0.0005A/h@500nm

Detector

Import Silicon Photodiode

Scanning speed

Fast-medium-slow

Power Requirement

AC220V±22 50Hz±1Hz,200W

Dimensions(W*D*H)

74*63*45cm&35kg

Baseline Flatness

≤0.002A(200-1090nm)

Grating

1200 lines/mm

Drifting

0.0009 Abs/30min(250nm and 500nm after 2h warm up)

Noise

100%(T)≤0.15%(T);   0%(T)≤0.1%(T)

Standard Accessory

Quartz Cuvette 10mm*2pcs; Power line; Fuse * 2pcs; Manual


L8/L9

Double Beam UV VIS Spectrophotometer

ME-L8 ME-L9 12.jpg


The L8/L9 double beam uv vis spectrophotometer applies a new optical bench, with 5-speed adjustable bandwidth (L9 only), ARM chip control and data processing,

8 inch color touch - screen which displays menu and spectral curve and can analyze spectrum test data. It’s quite easy for user and computer interaction.

The instrument can perform following operations, including photometry, automatic scanning spectral measurement, quantitative analysis, dynamic analysis,

and multi-wavelength measurement.


The instrument serves as the basic equipment for quality control, technical evaluation and scientific research, and can be widely used in susceptibility testing,

medicine and health, biochemistry, environmental monitoring, commodity inspection, petrochemical and other fields.


Main Features:

1.New optical platform, enabling the host machine with excellent optical properties, metering performance, low stray light and noise, high metering accuracy and stability.

2. Unique system of deuterium and tungsten lamp installation, facilitating the light source to automatically switch to the best position, and allowing users to operate the instrument,

replace the light source and maintain the instrument more conveniently , accurately and safely.

3. Sophisticated hardware and software design , empowering the instrument with powerful spectral data processing and storage capabilities , and performing functions,

including automatic scanning of measured spectrum, multi-wavelength ( 1~3λ) measurement, kinetic measurement, 1~3 curve fitting, 1~4 derivative spectra,

spectra printing and storage and data analysis.

4.8-inch color touch screen, with a good user-machine interface, easy to operate.

5.USB Communication port.


Standard Accessories:

Main Machine 1 piece

Operation manual 1 piece

Quartz cuvette 1cm 2 pieces

Power cable 1 piece

Fuse 2piece


Optional Accessories:

UV WIN8 Spectrum data processing software


Specifications:

Model

L8

L9

Spectrum Bandwidth

2nm

0.5nm, 1nm, 2nm, 4nm, 5nm

Wavelength Range

190-1100nm

Monochromator Type

Czerny-Turner

Grating

1600 lines/mm

Detector

Silicon Photocell

Wavelength Accuracy

± 0.3nm

Wavelength Repeatability

≤ 0.1nm

Wavelength Scanning Speed

Fast, medium and slow

Light source Switching Wavelength

340nm

Stray Light

≤ 0.02% (measured by NaI at 220 nm) (measured at NaNO2 at 360 nm)

Photometric Range

0.0 ~ 200.0% T

-0.301 ~ 4.000A

0.000 to 9999C

Photometric Accuracy:

± 0.3% T

± 0.002Abs (0 - 0.5A)

± 0.004Abs (0.5 - 1A)

Photometric Repeatability:

≤ 0.15% T

0.001Abs (0 - 0.5A)

0.002Abs (0.5 - 1A)

Baseline Flatness

≤ ± 0.0008A(200-1090nm)

Noise

100%(T) noise ≤ 0.1% (T), 0% (T) noise   ≤ 0.02% (T)

Baseline Drift

± 0.0004 Abs / h (250nm and 500nm after preheat warm up for 2 hours )

Power

AC220v± 22v, 50Hz± 1Hz, 200W

Light Source

Hamamatsu D2 lamp, Osram halogen tungsten lamp.

COM Port

USB

Packing Size

740mm*630mm*450mm, 0.21m³, 35kg.