اسپکتروفتومتر تک پرتوئی vis مدل S21 ساخت کمپانی Biocheromtech با مشخصات زیر:

Type: Visible
Wavelength Range: 325 - 1100nm
Wavelength Accuracy: (+/-) 1nm
Wavelength Reproducibility: (+/-) 0.5nm
Lamp Source: Xenon (PTR)
Beam: Split Beam
Optical System: Reference Beam Compensation
Bandwidth: <3nm
Detector: Dual Solid State Silicon photodiode
Photometric Range: -3.000 to 3.000A, -9999 to 9999 conc. units, 0.1 to 200%T
Stray Light: <0.05%T at 220nm and 340nm
Zero Stability: ± 0.002A/h at 0A after warm up
Baseline Flatness: n/a
Measurement Type: Fixed Wavelength, Abs/%T, Abs ratio, Abs difference, concentration (factor), concentration (standard curve), multiwavelength, kinetics, Life Science Methods, cell density
Cell Compatibility: Cuvette, Flow Cell*, Microcell*, Variable Pathlength Cell*
Other Sample Containers: n/a
Cell Holder: Built in 8 cell changer, 4 position cell changer*, 6 and 8 position heated cell changers*, single cell holder*
Accessory: Options Sipper*
Method Storage: Up to 18
Compliance: 21 CFR part 11*, IQ/OQ*
Data Output :Print*, Export to PC*, PC Control*
Display: Graphical LCD
Data Interface: serial, parallel
Languages: English, Manuals in French, German, Italian and Spanish
Power Requirement: 90-265V, AC, 50/60Hz, 80VA
Weight: 13Kg (28.6lb)
Dimensions (WxDxH):51 x 37 x 23 cm (20 x 14.6 x 9.1 inches)
Noise: ± 0.001A near 0A and ± 0.002A near 2A at 600nm
Photometric Accuracy: +/- 0.5% or +/-0.003A to 3A at 546nm
Photometric Reproducibility: 0.5% of absorbance value
Spectral Scanning: Yes (up to 900nm)