HOLMARC’s UV2-1911D Spectra UV-Vis Double Beam Scanning Spectrophotometer has excellent performance blazed holographic grating and optimized CT-type monochromator to reduce stray light and widen the photometric range.
UV2-1911D’s large LCD screen displays the menu and makes the device easier to use. This instrument ensures high sensitivity, reduced noise, and ultra-low stray light. This spectrophotometer is rugged, reliable, affordable, and maintenance free. UV-VIS Double Beam UV2-1911D Spectrometer’s enhanced transmission and full reflection makes this double beam instrument precise with minimum noise. Additionally, this instrument can be interfaced with a computer and a printer to display the photometric and spectral data on the PC monitor. Holmarc’s Spectra Photometric Analyte software can be used along with the instrument for wide range of uses and applications.
Photometric mode measures absorbance or transmittance at a single wavelength or at multiple wavelengths. Spectrum mode obtains sample spectra using wavelength scanning. Changes in the sample can be tracked using repeated scans. Quantitation mode generates a calibration curve from standard samples and uses it to calculate concentration of unknown samples. Kinetics mode measures the change in absorbance as a function of time, and thereby obtains enzymatic activity values. Time scan mode measures the change in absorbance, transmittance, or energy as a function of time.
|Optical system||:||CT Dual beam|
|Wavelength range||:||190 nm – 1100 nm|
|Spectral bandwidth||:||1 nm|
|Wavelength display||:||0.1 nm resolution|
|Stray light||:||≤ 0.12 % T (220 nm NaI, 340 nm NaNO2)|
|Wavelength accuracy||:||+ 0.2 nm|
|Wavelength reproducibility||:||+ 0.1 nm|
|Photometric system||:||Dual beam, dynamic feedback direct ratio recording system|
|Optical system||:||C-T monochromator, 1200 l/mm holographic grating|
|Photometric method||:||Transmittance, Absorbance, Energy and Concentration|
|Photometric range||:||0 ~ 2.0 Abs|
|Photometric accuracy||:||+ 0.002 Abs (0 ~ 0.5 Abs)|
|+ 0.004 Abs (0.5 ~ 1.0 Abs)|
|+ 0.15 % T (0 ~ 100 % T)|
|Photometric reproducibility||:||+ 0.001 Abs (0 ~ 0.5 Abs)|
|+ 0.002 Abs (0.5 ~ 1.0 Abs)|
|+ 0.15 % T (0 ~ 100 % T)|
|Baseline flatness||:||± 0.002 Abs (200 – 1100 nm)|
|Baseline stability||:||0.001 Abs / 30 min|
|Scanning speed||:||1 nm to 1400nm / min – Selectable|
|Input Voltage||:||230V 50Hz|
|PC interface||:||RS – 232 or USB|
|Photometric noise||:||± 0.001 Abs (500 nm, 30 min warmup)|
|Light source||:||Deuterium lamp and Tungsten Halogen lamp with auto selection system|
|Detector||:||Hamamatsu Silicon photodiode|
|Software support||:||Spectra PhotoANALYTE|
|Display||:||Digital LCD display|
|Sample chamber||:||4 cell sample holder / chamber|
Documents / Drawings
Large LCD and friendly interface make the operation extremely easy.
Precise measurements over a wide photometric range.
Step scan function provides reliable peak assignment of samples with sharp or narrow absorption peaks.
User-friendly graphical interfaces.
Excellent signal-to-noise ratio for the entire UV to NIR spectral range.
Spectra Photo ANALYTE
Multi component analyses Powerful data processing
Accessories for UV2-1911D
6 Cell Automatic Reference / Sample Holder
8 Optical Glass Cuvettes 10mm
2 Quartz Cuvettes 10mm
Power cable and PC cable
Tungsten Halogen Lamp
CD of installation and how to use the UV2-1911D
Thinfilm & Powder Sample Holder
Peltier Kinetic Test System
Flow Through System
Variable Angle Reflection Measurement Unit
|For Custom Glass Cuvettes,
please Specify the
|Beam width (mm)|
Custom Glass Cuvettes
We can manufacture quartz cells and cuvettes of custom specifications for spectrometer, spectrophotometer, colorimeter, and other instruments.
The cuvette holder unit is manufactured for various cuvette sizes and applications. Some cuvette holders are equipped with SMA fibre connectors and collimators.