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L8 Double Beam UV-VIS Spectrophotometer

Model NO. L8

Minimum Order 1unit

The L8 double beam UV-Vis spectrophotometer applies a new optical bench, with 5-speed adjustable bandwidth, 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 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.

Quantity

Features：

● New optical platform, enabling the host machine with excellent optical properties, metering performance, low stray light and noise, high metering accuracy and stability.
● 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.
● Sophisticated hardware and software design, empowering the instrument with powerful spectral data processing and storage capabilities, and performing following functions,including automatic scanning of measured spectrum, multi-wavelength (1-3 λ) measurement, kinetic measurement, 1-3 curve fitting, 1-4 derivative spectra, spectra printing and storage and data analysis.
● 8-inch color touch-screen, with a good user-machine interface, easy-to- operate.
● USB communication port.

Specification：

Model	L6	L7	L8
Photometry	Split Beam	Double Beam	Double Beam
Monochromator Type	Czerny-Turner	Czerny-Turner	Czerny-Turner
Focal Length	160mm	160mm	200mm
Grating	1200 lines/mm	1200 lines/mm	1600 lines/mm
Detector	Silicon Photocell	Silicon Photocell	Silicon Photocell
Spectrum Bandwidth	1.8nm	1.8nm	1nm or 2nm
Wavelength Setting	8-inch color touch-screen	8-inch color touch-screen	8-inch color touch-screen
Wavelength Range	190-1100nm	190-1100nm	190-1100nm
Wavelength Accuracy	±0.3nm	±0.3nm	±0.3nm（actual test ±0.2nm ）
Wavelength Repeatability	≤0.1nm	≤0.1nm	≤0.1nm
Scanning Speed:		Fast-Medium-Slow	Fast-Medium-Slow
Stray Light	≤0.03%T( at 220nm NaI, 360nm NaNo2 )	≤0.03%T( at 220nm NaI, 360nm NaNo2 )	≤0.02%T( at 220nm NaI, 360nm NaNo2 )
Photometric Range	0.0-200.0% T -0.301-4.000 A 0.000-9999 C	0.0-200.0% T -0.301-4.000 A0.000-9999 C	0.0-200.0% T -0.301-4.000 A 0.000-9999 C
Photometric Accuracy	±0.3% T ±0.002 Abs (0-0.5A) ±0.004 Abs (0.5-1A)	±0.3% T ±0.002 Abs (0-0.5A) ±0.004 Abs (0.5-1A)	±0.3% T ±0.002 Abs (0-0.5A) ±0.004 Abs (0.5-1A)
Photometric Repeatability	≤0.15% T 0.001 Abs (0-0.5A) 0.002 Abs (0.5-1A)	≤0.15% T 0.001 Abs (0-0.5A) 0.002 Abs (0.5-1A)	≤0.15% T 0.001 Abs (0-0.5A) 0.002 Abs (0.5-1A)
Noise	100%（T） noise≤0.15%(T) ， 0%（T）noise≤0.1%(T)	100%（T） noise≤0.15%(T) ， 0%（T）noise≤0.1%(T)	100%（T）noise≤0.1%(T) ， 0%（T）noise≤0.02%(T)
Power	AC220V±22V 50Hz±1Hz, 200W	AC220V±22V 50Hz±1Hz, 200W	AC220V±22V 50Hz±1Hz, 200W
Packaging Size	710mm X 590mm X 505mm 0.21M³ 40kg	710mm X 590mm X 505mm 0.21M³ 36kg	730mm X 630mm X 450mm 0.21M³ 42.5kg
Baseline			≤±0.0008 A(200-1090nm)
Drifting			≤0.004 Abs/h (250nm and 500nm after 2h warm up)
COM Port			USB