HITACHI U-2900 UV-VIS双光束分光光度计 (190 ~ 1100 nm)

Optical System: Double Beam

Wavelength Range: 190 ~ 1100 nm

Spectral Bandwidth: 1.5 nm

Stray Light: ≤ 0.05% (Nal at 220 nm, NaNO2 at 340 nm)

Wavelength Accuracy: ±0.3 nm (at 656.1, 486.0 nm)

Wavelength Repeatability: ±0.1 nm

Photometric Range: Absorbance: -3.0 Abs – 3.0 Abs

Transmittance: 0 – 300 %T

Photometric Accuracy:

± 0.002 Abs (0 – 0.5 Abs)

± 0.004 Abs (0.5 – 1.0 Abs)

± 0.008 Abs (1.0 – 2.0 Abs)

± 0.3 %T

Photometric Repeatability:

± 0.001 Abs (0 – 0.5 Abs)

± 0.002 Abs (0.5 – 1.0 Abs)

± 0.004 Abs (1.0 – 2.0 Abs)

± 0.1 %T

Wavelength Scanning Speed: 10, 100, 200, 400, 800, 1200, 2400, 3600 nm/min

Scanning Response Speed: 3 levels: fast / slow / medium

Baseline Stability: 0.0003 Abs/hour (at 500 nm, after 2 hours of warm-up)

Baseline Noise: 0.00015 Abs (at 500 nm)

Baseline Flatness: ±0.0006 Abs (full range: 200 – 950 nm)

Light Source: WI Lamp and D2 Lamp

Light Source Switching: Automatic, freely selectable within the range: 325 – 370 nm

Detector: Silicon photodiode

Display: Color LCD, brightness adjustable (26.4 cm)

Printer Interface: Parallel port

Computer Interface: RS-232C (serial port)

Main Unit Dimensions: 500(W) × 605(D) × 283(H) mm

Main Unit Weight: 31 kg

Power Supply: 220V, 50/60 Hz

Power Consumption: 300 VA