Double Beam Scanning UV/VIS Spectrophotometer BK-D590 190-1100nm, 0.5-5nm Adjustable Bandwidth (CAT#: STEM-LT-1008-ZJF)

The BK-D560, BK-D580, and BK-D590 Double Beam Scanning UV/VIS Spectrophotometers deliver exceptional accuracy and stability for a wide range of analytical applications. With a wavelength range of 190-1100nm, they support photometry, quantitative analysis, kinetics, multi-wavelength measurement, spectral scanning, and six biological assay methods. The double beam optical design ensures reliable baseline stability and precise measurements, while the large color TFT LCD provides clear visual data display. The BK-D590 offers adjustable spectral bandwidth for maximum flexibility, while the BK-D580 and BK-D560 feature optimized fixed bandwidths for consistent performance.

BK-D560
Optical System: Double beam, grating 1200 lines/mm
Wavelength Range: 190-1100nm
Spectral Bandwidth: 1.8nm
Wavelength Accuracy: ±0.3nm
Wavelength Repeatability: ≤0.2nm
Photometric Accuracy: ±0.002A (0-0.5Abs), ±0.004A (0.5-1.0Abs), ±0.3%T (0-100%T)
Photometric Repeatability: 0.001Abs (0-0.5Abs), 0.002Abs (0.5-1.0Abs), ≤0.2%T (0-100%T)
Stray Light: ≤0.04T @360nm; 220nm
Stability: ±0.0003A/h @500nm
Baseline Flatness: ±0.0005A
Noise: ±0.0002Abs
BK-D580
Same as BK-D560 except:
Spectral Bandwidth: 1nm
BK-D590
Same as BK-D560 except:
Spectral Bandwidth: 0.5, 1, 2, 4, 5nm (adjustable)
Common Specifications
Display: 65k true color 7-inch TFT LCD (480×800)
Photometric Mode: T, A, C, E
Photometric Range: 0-200%T, -0.301–3.0A
Detector: Silicon photodiode
Light Source: Deuterium lamp, tungsten lamp
Input: Membrane keypad
Output: USB-A×2 (print & data output), USB-B (PC connection)
Standard Accessories: Scanning software, 1cm standard single slot cuvette holder, 1cm glass cuvette×4, 1cm quartz cuvette×2
Optional Accessories: Long optical path holder, micro cuvette, solid sample holder, thermostatic absorption pool, reflection accessories, printer, lamps
Power Supply: AC110/220V ±10%, 60/50Hz
Packing Size: 740×570×440 mm
Gross Weight: 25 kg

Environmental Deuterium lamp to prevent ozone inhalation.
Real-time monitoring of Deuterium and Tungsten lamp lifetimes.
Socket-type Deuterium and Tungsten lamps.
G-L-P self-check function for wavelength and photometry accuracy, with test reports and power-off protection.
Automatic wavelength calibration, lamp source change, and dark current calibration.
SiO2 coating optical mirror reduces external influences.

STEM-LT-1006-ZJF
STEM-LT-1007-ZJF
STEM-LT-1009-ZJF
STEM-LT-1010-ZJF