Features of DW-L7 Double Beam UV-VIS Spectrophotometer

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

• Double 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

Specifications of DW-L7 Double Beam UV-VIS Spectrophotometer

Model	DW-L7
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
	±0.004 Abs (0-0.A)
	±0.008 Abs (0.5-A)
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

Standard Accessories of DW-L7 Double Beam UV-VIS Spectrophotometer

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

Optional Accessories of DW-L7 Double Beam UV-VIS Spectrophotometer

• UV WIN8 station pro software
• NO optional cuvette holder