UV/VIS Spectrophotometer BK-UV1000 200–1100nm, 4nm Bandwidth (CAT#: STEM-LT-1021-ZJF)

The BK-UV1000, BK-V1000, BK-UV1200, and BK-V1200 spectrophotometers are single-beam analytical instruments designed for reliable and accurate quantitative and qualitative measurements. Covering UV/VIS or visible ranges, they feature a 4nm spectral bandwidth, precise photometric performance, and stable operation. These models are well-suited for laboratories across environmental monitoring, life sciences, food analysis, and chemical testing, offering easy operation through a membrane keypad and a clear LCD display.

Wavelength Range: 200–1100nm
Spectral Bandwidth: 4nm
Wavelength Accuracy: ±1.8nm
Wavelength Repeatability: ≤0.5nm
Light Source: Deuterium & tungsten lamp
Common Specifications
Optical System: Single beam, grating 1200 lines/mm
Photometric Accuracy: ±0.002A (0–0.5Abs), ±0.004A (0.5–1.0Abs), ±0.5%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: ≤0.2%T @360nm; 220nm (UV) / ≤0.2%T @360nm (Visible)
Stability: ±0.002A/h @500nm
Noise: ±0.001A
Display: 128×64 dot LCD
Photometric Mode: T, A, C, E
Photometric Range: 0–200%T, –0.301–3.0A
Detector: Silicon photodiode
Input: Membrane keypad
Output: Parallel print, USB 1.0
Standard Accessories:
UV models: 1cm glass cuvette×4, 1cm quartz cuvette×2, quadruple cuvette holder×1
Visible models: 1cm glass cuvette×4, quadruple cuvette holder×1
Optional Accessories: Application software, various cuvette holders, micro cuvette, solid sample holder, lamps, thermostatic absorption pools
Packing Size: 560×430×320mm
Gross Weight: 12kg (UV), 11.5kg (Visible)

Large LCD screen (128x64 dots).
Pre-aligned design for easy lamp replacement.
SiO2 coating optical mirror fully reduces external contamination.
Environmental Deuterium lamp to prevent ozone inhalation.
High-class grating with a fully hermetic light path design ensures ultra-low stray light.
Real-time monitoring of Deuterium and Tungsten lamp lifetimes with advanced system.
Automatic wavelength calibration, lamp source change, and dark current calibration.
Optional PC software for Quantitative, Multi-Wavelength, and Kinetics applications.
Widely used in organic chemistry, inorganic chemistry, life sciences, food, agriculture, geology, metallurgy, and environmental fields.

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