DV-8200 Single Beam Visible Spectrophotometer
DV-8200 Single Beam Visible Spectrophotometer is the ideal instrument for education and QC laboratories. They are simple to fit a curve by using your standard. They are widely used in colleges and quantitative analysis labs.
Optional Accessories:
- PC scanning software
- Tungsten Lamp
- Deuterium lamp
- Micro cuvette cell holder (one-position)
- Manual 4-positions cell holder
- Automatic 4/8 positions cell holder
Features of DV-8200 Spectrophotometer:
1. Small fine design, space-saving
2. The excellent optical and electric system
3. Low noise and Low stray light
4. Large LCD display (128*64 Dots), can display curve
5. High-quality grating, detector and lamps
6. Data and Curve can be stored in real-time
7. Auto setting WL, auto Blank
8. Easy to change Pri-aligned lamps
9. Reinforced baseboard and bracket assures
Function of DV-8200 Spectrophotometer:
1. Photometric: T%, Abs
2. Quantitative: Standard Curve
3. System Utility
4. WL Scan (Spectrum Scan) (PC)
5. Time Scan (Kinetics) (PC)
6. DNA/Protein Test (PC)
7. Multi-WL Test (PC)
Working Principle of UV Visible Spectrophotometer
Different matter has different but special absorbance wavelength point. Also, when at the fixed wavelength point, the absorbance has some relation to the substance’ s (Always transparent Solution) concentration and its thickness. The relation can be concluded as the following Formula which is called Lambert-Beer Law.
- T= I/Io
- A=KCL= -log I/Io
- A Absorbance
- C Concentration of the Solution
- K Absorbance Coefficient of the Solution
- L The length of the Solution in the light path
- I The intensity of the light focused on the A/D after it permeate the solution to be measured.
- Io The intensity of the light focused on the A/D after it permeate the Solution.
Note: When test, the solvent is usually taken as the Reference Solution and its Transmittance is considered as 100%T. While the Transmittance of the sample to be tested is a relative value which is got comparing to that of the Reference.
Specifications of DV-8200 Visible Spectrophotometer
| Model | DV-8200 |
| Wavelength Range | 320-1100nm |
| Spectral Bandwidth | 2.0nm or 4.0nm optional |
| Optical System | Single Beam, Blazed Holographic Grating (1200 lines/mm) |
| Wavelength Accuracy | ±0.8nm |
| Wavelength Repeatability | ≤0.2nm |
| Wavelength Setting | Auto, Resolution 0.1nm |
| Photometric Range | 0~200%T, -0.3~3A, 0~9999C |
| Photometric Accuracy | ±0.002A (0~0.5A), ±0.004A (0.5~1A), ±0.3%T (0~100%T) |
| Photometric Repeatability | ≤0.001A (0~0.5A), ≤0.002A (0.5~1A), ≤0.2%T (0~100%T) |
| Stray Light | ≤0.1%T(220/360nm) |
| Scan Speed | High, Medium, Low. Max.1000nm/minute |
| Baseline Flatness | ±0.003A |
| Stability | ±0.002A/h (500nm,0A) |
| Noise | ≤0.2%T/3min (250/500nm,0%T); ≤0.5%T/3min (250/500nm,100%T) |
| Sample Compartment | Accommodate 5-100mm Pathlength Cuvette |
| Detector | Silicon Photodiode |
| Lamps | Tungsten Lamp & Deuterium Lamp (Pre-aligned) |
| Display | Graphic LCD (128×64 Dots) |
| Keypad | 11-key Membrance Keypad |
| Output Port | USB Port & RS232 Port |
| Printer | Mini Serial Printer; PC Printer |
| PC Software | Optional PC Scanning Software |
| Power Requirements | AC 90-250V，50/60Hz |
| Dimension | 431x318x195mm |
| Net Weight / Gross Weight | 8.2kgs / 12kgs |
