Visible Spectrophotometer 723S, 320-1100 nm (CAT#: STEM-AL-8839-ZJF)

The 723S is a spectrophotometer intended for scanning visible absorbance and transmittance analysis. It measures sample absorbance and transmittance by selecting wavelength-resolved ultraviolet or visible light. The optical system uses a C-T monochromator with a 1200 lines/mm diffraction grating. The stated wavelength coverage is 320-1100 nm. The instrument measures absorbance and transmittance while controlling wavelength accuracy, repeatability, stray light, drift, and baseline flatness. USB and RS232 interfaces support external data storage and communication. The normalized record retains only technical information supported by the source. Overall, the instrument provides a scanning visible-spectrum platform for routine quantitative analysis.

Optical System: C-T Monochromator With 1200 Lines/mm Diffraction Grating
Display: 128 × 64 LCD
Wavelength Range: 320-1100 nm
Spectral Bandwidth: 2 nm
Stray Light: ≤0.1%T At 360 nm
Transmittance Accuracy: ±0.5%T
Transmittance Repeatability: ≤0.2%T
Wavelength Accuracy: ±1.0 nm
Wavelength Repeatability: ≤0.5 nm
Transmittance Range: 0.0-200%T
Absorbance Range: -0.3-4 A
Baseline Flatness: ±0.002 Abs
Drift: ≤0.0008 A/h
Noise: ≤0.5%T At 100%T
≤0.2%T At 0%T
Interfaces: USB-A, USB-B, RS232
Dimensions: 370 × 440 × 220 mm
Net Weight: 9.0 kg

Scanning Visible Spectroscopy
C-T Monochromator
Absorbance Measurement
Transmittance Measurement
USB And RS232 Communication
Baseline And Drift Control