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

Main Features

● 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

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%（T）noise≤0.3%(T) ， 0%（T）noise≤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