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UV-990 Spectrophotometer

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UV-990 Spectrophotometer Specification

Accuracy
0.3 nm (Wavelength)

Automation Grade
Semi-Automatic

Feature
Auto Zero Adjustment, Multi Wavelength Measurement, Data Storage

Model No
UV-990

Capacity
Single, Double, Split & Multi Beam

Voltage
220 V

Frequency
50/60 Hz

Temperature Range
Room Temperature Operation

Power Source
AC Mains

Measurement Range
190 nm 1100 nm

Core Components
Optical System, Microprocessor, Light Source, Detector

Equipment Materials
High-grade Optical Components, Robust Casing

Type
UV-Visible Spectrophotometer

Usage
Quantitative & Qualitative Analysis in Laboratories

Display Type
Large Color Touchscreen LCD

Dimension (L*W*H)
530 x 400 x 220 mm

Weight
16.5 kg

Storage capacity
5000 Data Sets

Response Time
<3 seconds

Detector Type
Silicon Photodiode

Sample Holder
Cuvette Holder (Quartz/Glass)

Colorimetric Modes
Abs, %T, Conc, Factor

Software Compatibility
Windows OS

Light Source
Deuterium & Tungsten Lamp

Photometric Accuracy
0.5% T

Photometric Repeatability
0.2% T

Spectral Bandwidth
2 nm

Scanning Speed
Fast/Medium/Slow selectable

Printer Support
External Printer Interface

USB Interface
Available

Power Consumption
120 W

Wavelength Accuracy
0.3 nm

Wavelength Repeatability
0.2 nm

Operating Humidity
<85% RH

Stray Light
0.3% T at 220 nm

About UV-990 Spectrophotometer

Standard Features of UV-990 Spectrophotometer

Truly double beam double monochromator design with holographic grating (1800 lines/mm).
Variable bandwidth from 0.1 to 5 nm.
Offers the least signal-to-noise ratio: 0.00005 Abs RMS (500nm).
Integrating sphere with a 100 mm diameter.
Ultra-low stray light: < 0.0003%T (Nal at 220 nm, NaNO2 at 340 nm).
Higher accuracy with a broader linear dynamic range

High Accuracy and Performance

The UV-990 Spectrophotometer delivers outstanding results with its exceptional wavelength and photometric accuracy. It employs a robust optical system with high-grade components, ensuring reliable and reproducible data for both qualitative and quantitative analyses. The versatile sample holder accommodates both quartz and glass cuvettes.

User-Friendly Operation and Connectivity

Equipped with a large color touchscreen LCD and intuitive interface, the UV-990 streamlines daily workflow. Its USB interface and Windows OS compatibility simplify data management, allowing direct export of results or connection to printers. Users can store up to 5000 sets of data, ideal for high-throughput environments.

Versatile Scanning and Measurement Options

Whether you need rapid scan speeds, multi-wavelength measurement, or auto zero adjustment, the UV-990 adapts to various laboratory requirements. Several beam configurations-single, double, split, and multi beam-further enhance its flexibility, making it suitable for a broad spectrum of research tasks.

FAQ's of UV-990 Spectrophotometer:

Q: How does the UV-990 Spectrophotometer ensure accurate wavelength measurements?

A: The UV-990 features a wavelength accuracy of 0.3 nm and repeatability of 0.2 nm, achieved through its high-grade optical components, microprocessor controls, and precise calibration mechanisms. This allows for highly reliable and consistent experimental results.

Q: What types of samples can the UV-990 accommodate and how are they held?

A: This spectrophotometer is equipped with a cuvette holder compatible with both quartz and glass cuvettes, allowing analysis of a wide variety of liquid samples commonly used in laboratory settings.

Q: When is it advisable to use the auto zero adjustment feature?

A: Auto zero adjustment should be used before commencing any new analysis to set accurate baseline readings and ensure that subsequent measurements reflect only the sample's absorbance or transmittance, free from background interference.

Q: Where can data collected by the UV-990 Spectrophotometer be stored or exported?

A: The instrument can store up to 5000 sets of data internally. It also features a USB interface and is compatible with Windows OS, enabling users to export results to external devices or connect with external printers for hard copies.

Q: What processes can the UV-990 Spectrophotometer support in a laboratory setting?

A: It's ideal for both quantitative (concentration determination) and qualitative (substance identification) analyses. With selectable colorimetric modes-Abs, %T, Conc, Factor-it supports various scientific and industrial protocols.

Q: How does using the UV-990 benefit laboratory workflows?

A: With fast response times (<3 seconds), selectable scan speeds, large data storage, and user-friendly controls, the UV-990 increases efficiency and reliability, allowing laboratories to handle large sample volumes and detailed studies with ease.

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