EU-2000A UV-Visible Spectrophotometer
- PRODUCT DETAIL
EU-2000A UV-Visible Spectrophotometer
Product Introduction
The
EU-2000A UV-Visible Spectrophotometer is a single-beam optical analysis
instrument designed for absorbance, transmittance, energy, concentration, and
time-scan measurements. With a wavelength range of 190–1020 nm and a spectral
bandwidth of 4 nm, it supports a wide range of ultraviolet and visible
spectrophotometric applications.
The
instrument features automatic wavelength calibration, dark current correction,
blank correction, and automatic light-source switching. Its large sample
compartment accommodates cuvettes from 5 to 100 mm, while the USB interface,
built-in microprinter support, and optional PC quantitative analysis software
provide convenient data management for laboratory workflows.
Performance Features
• Wide Wavelength Range: Covers
190–1020 nm for ultraviolet and visible light analysis.
• Automatic
Calibration and Correction: Supports automatic wavelength calibration,
dark current correction, and blank correction.
• Multiple
Measurement Modes: Measures transmittance (T%), absorbance (Abs),
energy (E), and concentration (C).
• Quantitative Analysis: Supports
coefficient-based calculations and standard-curve methods.
• Kinetic Measurements: Provides
time-scan analysis for monitoring changes in samples over time.
• Flexible
Sample Compatibility: Accommodates cuvettes with optical path
lengths from 5 to 100 mm.
• Low Stray Light: Specified
stray light is ≤0.1%T at 220 nm and 360 nm.
• Convenient Data
Handling: Supports real-time data storage, USB export, and printing.
• Optional PC Software: Extends
quantitative analysis, data processing, and storage capabilities.
• Durable
Optical Design: Uses a sturdy optical bracket and imported key components.
Working Principle
The
EU-2000A uses a single-beam optical system with a holographic diffraction
grating to separate incident light into different wavelengths. The selected
wavelength passes through the sample, and an imported silicon photodiode
detector measures the transmitted light intensity.
By
comparing the sample signal with the reference or blank signal, the instrument
calculates transmittance and absorbance. Concentration can be determined using
a coefficient method or a standard calibration curve. In time-scan mode,
measurements are collected over time to monitor changes in absorbance or other
optical signals.
Technical Parameters
Parameter
Specification
Model
EU-2000A
Optical
System
Single-beam
optical system
Monochromator
Holographic
diffraction grating
Wavelength
Range
190–1020
nm
Spectral
Bandwidth
4
nm
Wavelength
Accuracy
±2.0
nm
Wavelength
Repeatability
≤0.5
nm
Wavelength
Setting
Automatic
Wavelength
Resolution
0.1
nm
Photometric
Measurement Range
0–200%T;
−0.3–3 A; 0–9999 C; 0–9999 F
Photometric
Accuracy
±0.002
A (0–0.5 A); ±0.004 A (0.5–1 A); ±0.3%T (0–100%T)
Photometric
Repeatability
≤0.001
A (0–0.5 A); ≤0.002 A (0.5–1 A); ≤0.2%T (0–100%T)
Stray
Light
≤0.1%T
at 220/360 nm
Baseline
Drift / Stability
≤0.002
A/h at 500 nm and 0 A
Noise
±0.2%T
at 0%T line; ±0.5%T at 100%T line; ±0.001 A at 500 nm
Baseline
Straightness
±0.003
A
Scanning
Speed
High,
medium, and low; three adjustable levels
Detector
Imported
silicon photodiode
Light
Source
Imported
tungsten lamp and long-life deuterium lamp
Display
3-inch,
128 × 64 dot-matrix LCD
Keyboard
Membrane
keys
Sample
Compatibility
Cuvettes
with 5–100 mm optical path lengths
Data
Interface
USB
Printing
Built-in
microprinter; compatible PC printer when connected
PC
Software
Optional
quantitative analysis software
Power
Supply
AC
90–250 V, 50/60 Hz
Dimensions
430
× 320 × 195 mm
Weight
12
kg
Application Scenarios
• Chemical Analysis
Laboratories: Measures absorbance and concentration in suitable chemical
samples.
• Pharmaceutical
Testing: Supports UV-Vis analysis for applicable pharmaceutical testing procedures.
• Environmental Testing: Assists
with spectrophotometric analysis of water and environmental samples using
suitable methods.
• University and Research
Laboratories: Supports experiments, quantitative analysis, and optical
measurement research.
• Industrial Quality
Control: Helps monitor sample composition and product consistency.
• Food and Beverage
Testing: Supports suitable optical analysis methods for food-related samples.
• Kinetic Studies: Tracks
changes in optical signals over time during chemical or biochemical reactions.
EU-2000A vs. Conventional UV-Visible Spectrophotometers
Feature
EU-2000A
Conventional UV-Vis Spectrophotometer
Wavelength
Range
190–1020
nm
Depends
on model
Spectral
Bandwidth
4
nm
Depends
on model
Optical
Configuration
Single
beam
Single
or double beam
Wavelength
Calibration
Automatic
Depends
on model
Photometric
Modes
Transmittance,
absorbance, energy, concentration
Depends
on model
Quantitative
Analysis
Coefficient
and standard-curve methods
Depends
on software and configuration
Kinetic
Analysis
Time-scan
mode
Model-dependent
Cuvette
Compatibility
5–100
mm path lengths
Depends
on sample compartment
Data
Export
USB
Depends
on interface
PC
Analysis Software
Optional
Depends
on manufacturer and model
Frequently Asked Questions
1. What is the EU-2000A UV-visible spectrophotometer used
for?
It
is used to measure transmittance, absorbance, energy, and concentration in
suitable samples and to perform time-scan measurements for kinetic analysis.
2. What is the wavelength range of the EU-2000A?
The
instrument covers 190–1020 nm, spanning ultraviolet and visible wavelengths.
3. What is its spectral bandwidth?
The
specified spectral bandwidth is 4 nm.
4. Does the instrument support quantitative analysis?
Yes.
It supports coefficient-based calculations and standard-curve methods for
concentration analysis.
5. Can the EU-2000A perform kinetic measurements?
Yes.
Its time-scan mode can monitor changes in optical signals over time.
6. What cuvette sizes can it accommodate?
The
sample compartment is specified to accommodate cuvettes with optical path
lengths from 5 to 100 mm. Confirm compatibility with the selected cuvette and
accessories before ordering.
7. How are measurement data exported?
The
instrument includes a USB interface and supports data storage and printing.
Optional PC quantitative analysis software provides additional data processing
and storage capabilities.
8. What light sources does the spectrophotometer use?
It
uses an imported tungsten lamp and a long-life deuterium lamp, supporting
measurements across its specified wavelength range.
9. What are the power requirements and dimensions?
The
EU-2000A operates on AC 90–250 V at 50/60 Hz. Its dimensions are 430 × 320 ×
195 mm, and its weight is 12 kg.
