Spectrophotometer (UV-2900PC )
All spectrophotometers feature high performance sealed optics mounted on a stable machined platform. All spectrophotometer are intended to be utilized for research, development, quality control, etc. primarily in the fields of optical materials, semiconductors, new materials, electronics and so on through qualitative and quantitative analyses of samples diverse in kind and size. The comprehensive features, optional sophisticated powerful software, variety of accessories and model configurations will meet or exceed your expectations for performance and value.

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-2900PC
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
2 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
±0.002 Abs (0 to 0.5Abs)
Photometric repeatability
±0.001 Abs (0 to 0.5Abs)
Stray light
0.15 %T (at 220,360 nm)
Baseline flatness
≤±0.004 Abs
Stability
≤0.002 Abs / h (at 500 nm, after 2 hours energization)
Data output
Digital, USB port, LPT parallel
Spectrum software
Spectrum software, Windows® - based
Power
220V 10% 50Hz 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)

Visible Spectrophotometer (1200RS)
Dynamic Range of 335-1000 nm.
Controlled by built-in MCU, displays by two LED screens each with four digits. One displays wavelength value, the other displays transmittance, absorbance, factor and concentration value.
Built-in RS232 digital output, with Specsoft application software based on Microsoft Windows, create working curve with three points used for calculating concentrations.
Auto 0%(T)and 100%(T)function.
Direct-reading concentration by setting concentration factor or setting reference concentration.
Compact construction and modern design.
1200RS VIS Spectrophotometer Performance Specification
Spectral Bandwidth  5nm
Monochromator
Single beam, C-T type, grating 1200L/mm
Wavelength Range      335nm - 1000nm
Wavelength Accuracy±2nm
Wavelength Repeatability 1nm
Display Mode 
LED displays T, A, F, C, λ
Stray Light     ≤0.5%T(360nm)
Photometric Accuracy  ±1.0%T
Photometric Repeatability0.5%T
Stability  ±0.004A/h, at 500nm
T-A Transform Error  ≤±0.002A (at 0.5 A,≤±0.004A (at 1.0 A)
Photometric Range:  0-199.9% T, 0.3-2.5 A, 1-9999 F, 0-9999 C
Data Output 
RS-232C, digital output,
Sample Holder 
10mm-50mm adjustable, four position
Detector
Silicon Photodiode
Light Source     
Tungsten lamp (socket type, 20W / 12V)
Power Requirement   
220V±10% 50Hz / 110V±10% 60Hz)
Power Consumption      45W
Application software   
Specsoft application software
Actual dimensions     
385 W×310 D×190 H mm
Shipping dimensions   
456 W×378 D×262 H mm
Net weight      ≤6.5Kg
Shipping Weight  ≤8.0Kg