Zuzi UV/Vis Spectrophotometer, model 4320/2

The Zuzi 4320/2 UV/Vis spectrophotometer is the ideal solution for laboratories looking for precision, durability, and ease of use in their spectrophotometric analysis. Equipped with a 1200 lines/mm holographic grating and an optimized optical design, this equipment guarantees high accuracy measurements thanks to its low stray light and its advanced wavelength control mechanism (patented), which reduces noise and improves repeatability.

Its robust cast aluminum base and molded plastic housing ensure a long lifespan and resistance in demanding environments. The 5-inch TFT color LCD touchscreen offers clear visualization and intuitive handling, making daily operation easier. The system features auto-calibration and pre-heating countdown upon power-up, as well as file management and automatic wavelength adjustment for added convenience.

The Zuzi 4320/2 includes the EasyUV Basic software and allows direct connection to printers for immediate output of results. IQ/OQ/PQ qualification protocols are available to meet validation requirements in regulated laboratories.

Features:
- Cell holder: Manual, 10 mm, 4 positions.
- Functions: Photometry, quantification, file management, system utilities, performance verification.
- High precision and stability in measurements.
- Robust and durable design.
- Simple and intuitive handling via touchscreen.
- Auto-calibration and advanced file management.
- Printer compatibility and included EasyUV Basic software.
- IQ/OQ/PQ protocols available for validation.

Functions:
- Photometry:
   • Conversion A/%T/E.
   • Results can be recorded, renamed, deleted, saved, and printed.
- Quantification:
   • Single wavelength, double wavelength (difference, ratio).
   • Three ways to establish a standard curve (entering coefficients, measuring 2-20 standard samples, or entering the absorbance and concentration values of standard samples).
   • Three adjustment methods (zero linear, linear, quadratic).
   • Standard curves can be saved and loaded.
   • 19 common concentration units built-in and user-defined units (up to 8 characters).
   • Results can be recorded, renamed, deleted, saved, and printed.
- Files:
   • Files can be deleted, renamed, imported/exported, converted to .txt and .csv formats
- System:
   • System calibration (dark current, wavelength, system baseline).
   • Light source (light switch, timing).
   • Clock management.
   • Memory management (storage status display, formatting).
   • Six languages can be selected (Spanish, English, French, Portuguese, German, Simplified Chinese).
   • General configuration (tone, brightness, sample holder, etc.).
   • Reset to default values.
   • About (system information).
- Performance verification:
   • Wavelength accuracy
   • Photometric accuracy
   • Stray light
   • Noise
   • Dark noise
   • Stability
   • Bandwidth

Technical specifications:
- Optical system: Single beam, 1200 lines/mm grating.
- Wavelength range: 195-1050 nm.
- Wavelength accuracy: ±0.8 nm.
- Wavelength resolution: 0.1 nm.
- Wavelength reproducibility: ≤0.3 nm.
- Wavelength oscillation speed: 10000 nm/min.
- Light source: Tungsten, Deuterium.
- Spectral bandwidth: 2 nm.
- Detector: Silicon photodiode.
- Photometric range: -0.3-3 A, 0-200 %T, 0-9999.9 C.
- Sample compartment: For 4 cuvettes of 10 mm.
- Display: Color and touch TFT, 5 inches.
- Storage: 236 KB (internal memory), unlimited via external USB.
- Interface: RS232 serial port × 1 (printer), USB-A × 1 (USB memory), USB-B × 1 (PC).
- Power supply: 100-240 VAC, 50/60 Hz, 120 W.
- Dimensions (WxDxH) 450x370x187 mm.
- Weight: 10.5 kg.