二手 HACH DR4000 #9018356 待售

UV-Vis spectrophotometer Bandwidth : 4 nm Light source: Tungsten Optics: split beam Photometric range: 0 to 3 ABS, 0.1 to 100%T (-3.0 to 3.0 ABS, 0.1 to 200%T relative) Sample compartment: Modular Scanning speed: 400 nm/minute at 2.0 nm steps, 200 nm/minute at 1.0 nm steps, 100 nm/minute at 0.5 nm steps, 40 nm/minute at 0.2 nm steps, 20 nm/minute at 0.1 nm steps Stray light: 3.3 ABS minimum or 0.05%T maximum at 220 nm and 340 nm Wavelength range: 320 to 1100 nm Wavelength resolution: 0.1 nm Power requirements: AC line power selectable for 115/230 Vac ±17%; 50/60 Hz, 230 VA maximum Wavelength accuracy: ±1 nm Wavelength reproducibility: ±0.1 nm Wavelength calibration: internal, automatic at power-up with visual feedback Wavelength slew rate: 15,000 nm/minute Source lamp change: automatic changeover Photometric reproducibility-single-cell module: ±0.001 ABS at 1 ABS, 546.1 nm Photometric reproducibility-carousel module: ±0.002 ABS at 1 ABS, 546.1 nm, all setup modes, using matched sample cells Photometric linearity: ±0.002 ABS from 0 to 1 ABS at 546.1 nm Sample path length: 100 mm Grating: 1200 Lines/mm; 8 nm/mm dispersion Outputs: parallel printer port and serial I/O (RS232) Display: backlit, graphic, liquid crystal display with adjustable viewing angle and contrast control Storage temperature: -17 to 60 °C, 85% relative humidity, non-condensing Readout modes: concentration, absorbance, or transmittance Includes: Instrument manual Procedures manual 1" square cell adapter Power cord.