DW-L7 Double Beam UV-VIS Spectrophotometer, DRAWELL (CAT#: STEM-S-0007-CJ)

Highlights

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.

Cat Number: STEM-S-0007-CJ

Application: Used in qualitative and quantitative testing, such as: Full-spectrum scanning; Linear regression; Detailed spectrum scanning; Concentration on direct reading; Time-based kinetics determination; Peak / Valley detecting; GOTO λ; Multi-wavelength measurement

Model: DW-L7

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Description Specification Features Related Products

Description

DW-L7 double 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 on direct reading,Time-based kinetics determination, Peak / Valley detecting, GOTO λ, Multi-wavelength measurement.

Specification

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

Features

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