T7D/T7DS Double Beam UV-Vis


T7D: UV-Vis Spectrometer T7DS: UV-Vis Spectrometer

T7D/T7DS is a high performance double beam scanning spectrophotometer available with a variable spectral bandwidth, which is innovative in terms of instrument application, mechanical and optical design.


Electronic control and software enable this while maintaining features that are well established and accepted through the industry.


T7D/T7DS is able to carry out photometric measurements, spectrum scans, quantitative determinations and DNA/Protein analysis.When interfaced to a PC using the UV-Win software, many more features are available including three-dimensional spectrum, kinetic measurements, method and data storage, exportation of data in multiple formats and GLP administration features.

Key Features

◆ High performance variable spectral bandwidth


◆ Wavelength accuracy +/- 0.3nm


◆ Supplied with a motorized 8 cell changer and pre-aligned Tungsten and Deuterium lamps


◆ A number of optional accessories available to increase the flexibility of analysis


◆ High degree of automation requiring minimal key depressions to start analysis

◆ The simple mechanical structure and modular electrical design make the routine maintenance easy


Optical systemDouble beam 
Scan speedSelectable 
Wavelength range190-1100 nm
Wavelength accuracy±0.3 nm
Wavelength reproducibility≤0.2 nm
Spectral bandwidth

T7D: 2 nm

T7DS: 0.5, 1.0, 2.0, 5.0 nm

Photometric modeTransmittance,   Absorbance, Energy Concentration
Photometric range-0.3-3.0 Abs
Photometric accuracy0.002 A (0-0.5 A), 0.004 A (0.5-1 A), 0.3 %T (0-100 %T)
Photometric reproducibility0.001 A(0-0.5 A), 0.002 A (0.5-1 A), 0.15 %T (0-100 %T)
Photometric noise0.001 A (500 nm, 30 min warm-up)
Baseline flatness0.0015 A (200-1000 nm)
Baseline stability0.0008 A/h (500 nm, 0 Abs, 2 hrs warm-up)
Stray light≤0.12 %T (220 nm NaI, 340 nm NaNO2)
Standard functionalityPhotometric, Quantitative, Spectrum and DNA measurements
Cell holderAutomatic 8 cell changer
Detector Silicon photo diode
Light sourceTungsten Halogen and Deuterium arc lamps
Display Digital LCD display
PC interface RS232, USB
Software supportLocal and UV Win
Power supplySwitch mode 120-230 VAC 50-60 Hz
Weight 80 lb
Dimension 28 x 24 x 20 in

Available Options

PERSEE-T7DSSWT7DS UV/Vis Spectrophotometer, Double Beam 190-1100nm, variable 05, 1, 2 & 5nm Bandwidth 8-cell-holder (with software included)RM42,214.00
PERSEE-T7DSWT7D UV/Vis Spectrophotometer, Double Beam 190-1100nm, fixed 2nm Bandwidth (with software included)RM37,971.00