Complaint
| The spectrophotometers perform built-in wavelength calibration program automatically after energization. Core components will be check during the initialization to ensure the wavelength accuracy and excellent performance |
| Pre-aligned deuterium lamp and tungsten lamp for easy lamp replacement. The light source changing point can be set in range of 300nm - 400nm |
| The innovative optical layout ensures accuracy. Its integrated design assures long-term stability and durability. The precisely aligned detector and quality deuterium and halogen lamps enhance the precision. |
| Perform basic mode( Abs / %T), quantitative |
| Pre-set wavelength program (4 wavelengths), and one-touch key response |
| Single-point curve calibration and multi-point curve calibration (up to 12 points) |
| Display of fitting degree of curve fitting and concentration data with up to 50 sets of curve parameters storage |
| Display of concentration data with up to 200 sets of data storage |
| Dark current calibration / wavelength calibration/System clock management |
| Backup battery and integrated circuit design controlled by MCU assure non-volatile memory storage |
| USB data communication |
| LPT port for printing |
| 128*64 LCD screen to display all of the parameters |
| Sealed and solvent-resistant tactile keypad |
| Basic Mode | Multi-Wavelength | |
| Absorbance, %T or Concentration measurements. | Up to 15 wavelengths can be selected and multiple samples can be measured. (Auto cell changer is required to run multiple samples automatically). | |
| Quantitative (Standard Curve) Use up to 12 standards to establish standard curve. Four methods for fitting a curve: a. Linear fit b. Linear through zero c. Square fit d. Segmented | Wavelength Scanning Interval: 0.1, 0.2, 0.5, 1, 2, 5 nm Automatically record peaks and valleys. Post-run manipulation and processing includes: a. Re-scaling axes, curve b. Smoothing, combination, zooming, overlap c. 1st to 3rd derivative | |
| Kinetics (Abs vs. Time) The Kinetics mode may be used for time course scanning or reaction rate calculations. Abs. vs. time graphs is displayed on the screen in real time. Wait time, measurement time and time intervals may be entered. Post-run manipulation includes re-scaling, curve tracking and selection of the part of the curve required for the rate calculation. Rate is calculated using a linear regression algorithm before multiplying by the entered factor. | ||
| DNA/Protein Concentration and DNA purity can be calculated quickly and easily: Absorbance ratios 230nm/260nm/280nm with optional subtracted absorbance at 320nm. | ||
| Model | UV-2700 |
| Monochromator | C-T type, 1200 L/mm grating |
| Detector | Silicon detector for ultraviolet visible region |
| Display | 128*64 LCD, Blue color |
| Light source | Deuterium discharge tube(2000h), Tungsten lamp(2000h, 20W/12V) |
| Lamp change point | Can be set, 300 nm - 400 nm |
| Wavelength range | 190-1100 nm, autoscan |
| Wavelength accuracy | ± 1.0 nm |
| Wavelength calibration | Automatic at start |
| Wavelength display | 0.1 nm |
| Slit width | 4 nm |
| Wavelength repeatability | 0.5 nm |
| Measurement range | -1.0 ~ 200.0%T, -0.5 ~ 3.000Abs, 0 ~ 9999 C, 0 ~ 9999 F |
| Photometric accuracy | ± 0.5 %T (0 100%T) |
| Photometric repeatability | ± 0.2 %T |
| Stray light | 0.3 %T (at 220, 360 nm) |
| Baseline flatness | / |
| Stability | / |
| Data output | Digital, USB port, LPT parallel |
| Power | 110V 10% 60Hz 70VA |
| Standard sample holder | 4-position sample holder |
| Actual dimensions | 456 W X 375 D X 220 H mm, (18.0 W x 14.8 D x 8.7 H in) |
| Net weight | 14.5 Kg (32.0 lbs) |
| Shipping dimensions | 19.5 Kg (43.0 lbs) |
