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Mobile:+86-18663815259
Tel:+86-535-8088266
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Email:eric.chen@starkinstrument.cn
Skype:jackie.chan-chemins
Add:No.18 Xiulin Rd, Laishan development zone, Yantai, China.
Whatsapp/Wechat: +86-18663815259

       

Name:721N VIS Spectrophotometer

Specificatons

Photometry:     Split Beam

Monochromator Type:    Czerny-Turner

Focal Length:    160mm

Grating:    1200 lines/mm

Detector:     Silicon Photocell

Spectrum Bandwidth:    2nm

Wavelength Setting:     Manual Turn Knob

Wavelength Range:    340-1100nm

Wavelength Accuracy:    ±2nm

Wavelength Repeatability:    ≤1nm

Scanning Speed:    Fast-Medium-Slow

Stray Light  :     ≤0.1%T( at 360nm NaNo2 )

Photometric Range:     0.0-100.0% T

0.000-1.999 A

0.000-1999 C

Photometric Accuracy:    ±0.5% T

  ±0.004 Abs (0-0.5A)

  ±0.008 Abs (0.5-1A)

Photometric Repeatability:    ≤0.2% T

     0.002 Abs (0-0.5A)

        0.004 Abs (0.5-1A)

Noise:    100%Tnoise≤0.3%(T)  0%Tnoise≤0.2%(T)

Power:    AC220V±22V 50Hz±1Hz, 80W

Packaging Size:    580mm X 460mm X 345mm 0.1M3 12.5kg


Standrad Accessories

● Operation manual 1
● UV WIN7 Spectrum data processing software
● Glass cuvette 1cm 4pcs
● Power cable 1
● Fuse 2pcs
● Cuvette holder 10mm

Optional Accessories

● Thermal Plotter
● Cuvette holder 50mm


● Sample compartment for 5-50mm cuvettes
● Precise automatic T/A changeover
● Automatic zero and full scale adjustment 
● Equipped with USB port
● Direct concentration read-out and concentration factor setting function
● Automatic light gate technology to protect photoelectric sensors

721N VIS Spectrophotometer has the holographic blazed grating monochromator has the advantages of high wavelength accuracy, good monochromaticity and low stray light.
● Linear regression method and coefficient method are added to the concentration test method. 
● USB interface is added, and large capacity memory can store 30 concentration curves.
● Adopt microcomputer measurement system, with high conversion accuracy of T-A, automatic adjustment of 
● 0% T and 100% T, concentration factor setting and concentration direct reading.
● High accuracy, Good Reproducibility and Stability of Measurement Readings.
● Automatic light gate technology, No need blackbody, to protect the photoelectric sensor


Industrial Manufacturing

Environmental Protection

Food and Pharmaceutical

Petrochemical

Medical Hygiene

Construction Materials

Scientific Research


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