INTRODUCTION
The U.S. Solid JFUVS Series UV-Vis Spectrophotometer is available in standalone and PC-enabled configurations. The standalone version is designed for direct bench operation without a computer, while the PC-enabled version supports computer-based data acquisition, spectral scanning, curve visualization, and data management for laboratories that require a more comprehensive analytical workflow.
Built around a reliable single-beam optical system, an optimized CT optical path, and an enhanced 8-bit control processor, the JFUVS Series delivers dependable UV-Vis measurements for routine laboratory analysis, quality control, scientific research, and educational applications. Its long-life deuterium and tungsten lamps support UV and visible measurements, with automatic light-source switching for streamlined operation.
The instrument performs automatic self-tests at startup, including lamp, detector, filter, wavelength-calibration, and dark-current checks. It also supports photometric measurement, quantitative analysis by standard-curve or coefficient methods, data and spectrum storage, USB export, and optional printing. Up to 50 standard curves can be stored and recalled, helping streamline repeat testing and routine concentration analysis.
FEATURES
- Ratio-Detection Single-Beam Design: The optimized optical system uses ratio detection to help compensate for light-source variation, supporting stable, repeatable measurements beyond a basic single-beam configuration.
- Plug-In Deuterium and Tungsten Lamps: Replace lamps conveniently without optical realignment, reducing maintenance time and helping keep the instrument ready for routine testing.
- Spacious Sample Compartment: Accommodates standard cuvettes and compatible accessories in multiple sizes for flexible laboratory workflows.
- Onboard Analytical Tools: Perform standard-curve analysis, concentration calculations, kinetic measurements, and spectral scans directly on the instrument, with data and curves saved for later review.
- Printer-Ready Reporting: In addition to USB data export, the dedicated printer interface supports convenient printing of measurement results and records.
- Laboratory-Focused Operation: The membrane keypad and clear menu structure support efficient setup, routine testing, and repeatable daily operation.
DESIGN DETAILS
APPLICATIONS
SPECIFICATIONS
| Parameter | Specification |
| Optical System | Single-Beam Optical System with Ratio Detection |
| Wavelength Range | 190–1100 nm |
| Diffraction Grating | 1200 lines/mm holographic grating |
| Spectral Bandwidth | 1.8 nm |
| Wavelength Accuracy | ±0.3 nm |
| Wavelength Repeatability | 0.1 nm |
| Photometric Accuracy | ±0.3%T |
| Photometric Repeatability | 0.15%T |
| Photometric Range | 0–200%T, −3 to 3 A, 0–9999 C |
| Stray Light | ≤0.05%T @ 220 nm and 360 nm |
| Stability | ±0.001 A/h @ 500 nm |
| Baseline Flatness | ±0.001 A/h |
| Wavelength Setting | Automatic Wavelength Calibration and Setting |
| Light Source | Deuterium and Tungsten Lamps |
| Display | 320 × 240 dots LCD |
| Data Interface | USB (Optional RS-232) |
| Power Supply | AC 110 V/60 Hz |
FAQ
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What does the U.S. Solid JFUVS Series UV-Vis Spectrophotometer measure?
The JFUVS Series measures absorbance (Abs) and transmittance (%T) of liquid samples across the 190-1100 nm UV-Vis wavelength range. It can be used for routine photometric measurement, concentration analysis, standard-curve testing, and related laboratory applications. -
Can the instrument be used without a computer?
Yes. The standalone configuration can perform routine measurements, quantitative analysis, wavelength setting, blank calibration, data storage, and printing without a computer. PC-enabled configurations are also available for users who prefer computer-based data acquisition, curve display, spectral scanning, and data management. -
Is this a standard single-beam spectrophotometer?
The JFUVS Series uses a single-beam optical design with ratio detection to help reduce the effect of light-source variation and support consistent measurements. It is not a true dual-beam instrument, so a blank/reference measurement should be performed separately before sample testing. -
What measurement functions are available?
The instrument supports photometric measurement and quantitative analysis using standard-curve and coefficient methods. It can store and recall standard curves, perform concentration calculations, and save measurement data. PC-enabled versions provide additional computer-based analytical workflow options. -
What types of samples can be tested?
The instrument is designed primarily for liquid samples placed in compatible cuvettes. Typical applications include chemical solutions, colorimetric assays, environmental water samples, food and beverage testing, biochemical research, and industrial quality-control samples. -
How can I obtain reliable measurement results?
Allow the instrument to complete its startup self-test and recommended warm-up before use. Perform blank calibration at the test wavelength, use clean matched cuvettes, avoid fingerprints and air bubbles, and keep the sample-compartment cover closed during measurement. -
How are data exported and reported?
Measurement data can be saved on the instrument and exported to a USB flash drive through the USB interface. The instrument also supports connection to a compatible printer for printing measurement records and results. -
How many standard curves can be stored?
The instrument can store and recall up to 50 standard curves, helping laboratories reuse established methods for routine concentration testing. -
What routine maintenance is recommended?
Keep the sample compartment clean and dry, remove spills promptly, and keep cuvettes free of residue or scratches. The plug-in deuterium and tungsten lamps can be replaced when needed without optical realignment. Follow the user manual for calibration, lamp care, and routine maintenance.