UV-VIS spectrophotometer, flame photometer, AAS, HPLC, Gas Chromatograph, UV-visible spectrophotometer, atomic absorption spectrophotometer, fluorescence spectrophotometer-Product Center-Yantai Stark Instrument Co., Ltd.-

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Index >> Product Center >> Spectrophotometer >> L7 Dual Beam UV-VIS Spectrophotometer

Name:	L7 Dual Beam UV-VIS Spectrophotometer

Specificatons

Photometry:    Double Beam
Monochromator Type:   Czerny-Turner
Focal Length:    160mm
Grating:   1200 lines/mm
Detector:    Silicon Photocell
Spectrum Bandwidth:   1.8nm
Wavelength Setting:    8-inch color touch-screen
Wavelength Range:   190-1100nm
Wavelength Accuracy:   ±0.3nm
Wavelength Repeatability:   ≤0.1nm
Scanning Speed:   Fast-Medium-Slow
Stray Light :    ≤0.03%T( at 220nm NaI, 360nm NaNo2 )
Photometric Range:    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)
Photometric Repeatability:   ≤0.15% T
   0.001 Abs (0-0.5A)
0.002 Abs (0.5-1A)
Baseline:    ≤±0.002 A(200-1090nm)
Noise:   100%（T）noise≤0.15%(T) ， 0%（T）noise≤0.1%(T)
Drifting:   ≤0.0009 Abs/h (250nm and 500nm after 2h warm up)
Power:   AC220V±22V 50Hz±1Hz, 200W
Packaging Size:   710mm X 590mm X 505mm 0.21M³ 36kg

Standrad Accessories

● Operation manual 1
● Glass cuvette 1cm 4pcs
● Quartz cuvette 1cm 2pcs
● Power cable 1
● Fuse 2pcs
● Cuvette holder 10mm

Optional Accessories

● UV WIN8 Spectrum data processing software
● Thermal Plotter

● no optional cuvette holder

● Dual beam optical system
● 8-inch color touch-screen
● Automatic zero and full scale adjustment
● Automatic wavelength settings
● Equipped with USB COM port
● UV WIN8 Spectrum Data Processing Software optional
● Thermal plotter optional

L7 dual beam UV-VIS spectrophotometers adopt double beam optical system, and blazed holographic gratings.

They have outstanding test precision and very competitive prices. 8-inch color touch-screen, 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
● GOTO λ
● Multi-wavelength measurement

The equipment is designed with sophisticated power protection system. With high capacity of internal memory, it can store testing results, scanned images, regression equations and correction data. Therefore, it follows a fast initialization when power on.
The instrument can be connected with dedicated printer, which can print testing results, or draw curve from spectral scanning, fixed wavelength time-based scanning, and linear regression.
With USB COM port the device can be connected to a PC, which can not only enhance theperformance in data testing and spectrum scanning, but also expand the memory to save more testing results.

Industrial Manufacturing

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Food and Pharmaceutical

Petrochemical

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Construction Materials

Scientific Research