SP-1920 Dual Beam UV Visible SpectrophotometerAdopting spatial segmentation dual beam and asymmetric vertical measurement optical path technology (patented technology). Compared to traditional dual beam technology, the simple optical path simplifies the structure of the instrument and greatly improves its reliability.

Parameter indicators:

1. Main specifications:

Display mode: 8-inch color touch screen display

Workstation: Application work interface based on Microsoft Windows operating system

Light source: 6V10W imported 2000 hour long life tungsten halogen lamp, 1000 hour long life deuterium lamp

Sample Room: 100mm measurement path length

Standard colorimetric pool holder: 10mm

Power requirements:, 110/220VAC，50/60Hz，±10%

Dimensions: 655 × 420 × 265 (mm)

2. Optical performance:

Optical system: Dual beam, asymmetric vertical measurement optical path technology

Monochromator: 1800/mm diffraction grating monochromator

Detector: Digital dual high-performance photovoltaic cell detector

Spectral bandwidth: 0.5, 1, 2, 4nm

Wavelength range: 190nm-1100nm

Wavelength accuracy: ± 0.5nm

Wavelength repeatability: ≤ 0.3nm

Wavelength scanning speed: 3000nm/min-10nm/min

Wavelength movement speed: 6000nm/min

Stray light: ≤ 0.05% T (at 220nm and 360nm)

Measurement method: Dual beam simultaneous measurement

3. Luminous performance

Luminous methods: absorbance (Abs), transmittance (% T), energy (E)

Luminous range: 0-200.0% T (transmittance)- 0.3-4A (absorbance)

Luminous accuracy: ± 0.3% T

Luminous repeatability: 0.1% T, 0.001Abs (0-0.5Abs), 0.002Abs (0.5-1Abs)

Stability: ± 0.0004/h (preheated for one hour at 500nm)

Baseline straightness: ± 0.0005A

Noise: ± 0.0004A (spectral bandwidth 2nm)