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  • Dsh 721s Visible Spectrophotometer - China

    price: contact company for price

    I. Features:

    1. Retain the all performance and functionality of 721 model instrument.

    2. Wavelength range 360nm ~ 1000nm, used widely.

    3. With microcontroller inside, high degree of automation, with automatic adjustment 0% T, auto 100% T T- A conversion function, much convenient than the original 721 model.

    4. Four 0.8 - inch high brightness LED digital display, Readout resolution increase 10 times than traditional type 721 instrument .

    5. Four measurement mode: transmittance ( T) , the absorbance ( A) , shade direct reading ( C) and the coefficient of determination ( F) , fully meet the testing requirements.

    6. Advanced optical system design, Adopts the high quality of C - T type for grating monochromator spectral devices, the resolution of the instrument, the metering precision and stray light indicators are quite optimization.

    7. Using special precision preset lamp and lamp holder, users don' t need to adjust the light path again when light is replaced , it is convenient and simple.

    8. Sample chamber using the special engineering plastics with resistance function to solvent , strong acid and alkali, corrosion resistant, with the movable disk and container of liquids to meet some users' need.

    9. Could use use 10- 50mm cuvette.

    10. Retardant insulation plastic shell, small, light and beautiful appearance.

    II. Main technical parameters:

    1. Optical System: C- T- type monochromator ( diffraction grating)

    2. Wavelength range: 360nm ~ 1000nm

    3 Wavelength maximum permissible error: ± 3.0nm

    4. Wavelength repeatability: ≤ 1.5nm

    5. Transmittance maximum permissible error: ± 1.0% ( T) ( 0 ~ 100% tT)

    6. Transmittance repeatability: ≤ 0.3% ( 0 ~ 100% tT) ( T)

    7. Photometric range: T: 0.0 ~ 199.9% ( T) A: - 0.300 ~ 2.999 ( A) C: 0 ~ 9999 ( C) F : 1- 9999 ( F)

    8. Spectral bandwidth: 6nm

    9. Stray light: ≤ 1.0% ( T) ( at 360nm, determine in NaNO2)

    10. Stability: dark current drift: ≤ 0.3% ( T) / 3min; light current drift: ≤ 1.0% ( T) / 3min

    11. Power supply: AC90 ~ 250V 50/ 60 Hz

    Company Contact:

    • Phone: 867568305811

    • Address: Room402,unit 1 building NO.1,NO.333 Xianqiao road,, Zhuhai, China

    • Email: Email

    Published date: August 10, 2014 -

    • Business Description: Zhuhai Dshing Import&Export Co.,ltd, approved by Zhuhai special economic zone industrial and commercial bureau, is one of the leading manufacturers in geological instruments, Petroleum instruments as well as other laboratory instruments and so on.
      Since it was founded in 2010, the company has a group of highly qualified technical personnel specialized in research and development , with well trained workers, world class services, advanced machinery and equipment. Our enterprise absorbs domestic and overseas advanced technology and excellent management concept, and constantly develop new products as well as providing thoughtful services to our customers from all over the world.
      So far, our products include following parts:
      Geological instruments: (Geoelectric instruments, Magnetic detector, Logging instruments, Inclinometer, Radiometrics, Water detector, Electric winch, Core drilling rig etc)
      Petroleum instruments: (Flash point tester, Kinematic viscometer, Distilation Instruments, Solidifying point tester, Engler viscometer etc)
      Highway instruments:(Penetrometer, Ductility tester, Softening point tester,Asphalt wax content tester,
      Wheel tracking tester etc)
      Laboratory instruments: (Calorimeter, Water bath,Constant Temperature Oil Bath)
      Rotational viscometer
      Relied on high quality products, reasonable price, best service in the same industry, these products have been enjoying promising markets, including India, Indonesia, France, Africa and other countries.
      Our company always sticks to the principle of quality first, integrity first, service first , we 100% belived that we would be your partner forever from the moment of establishing business relationship.
      Warmly welcome you to send an email ,make a call or visit our factory!

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