How is the wavelength set on this spectrophotometer?

This Visible Spectrophotometer features a manual wavelength setting mechanism, which is controlled using a dial located on the front panel of the instrument. This allows users to adjust the wavelength within the range of 320 to 1020 nm. Although the setting is manual, the system is designed for fast and accurate adjustments, enabling users to easily select the desired wavelength for their specific analysis needs.

What optical system does the spectrophotometer use, and how does it work?

Our Visible Spectrophotometer uses a Czerny-Turner optical system, which incorporates a 1200 lines/mm diffraction grating. This system is well-known for its high spectral resolution and efficiency in dispersing light across a wide wavelength range. The light passes through the sample, and the resulting absorption or transmittance is measured by a silicon photodiode detector. This design supports high accuracy and repeatability, making it suitable for precise analytical tasks.

What makes it suitable for educational purposes?

It is designed with simplicity, reliability, and affordability in mind, making it an excellent choice for educational institutions. It features a straightforward manual dial for wavelength selection, an LED display for direct readout of absorbance and transmittance, and user-friendly keyboard functions such as automatic 0% and 100% adjustment. These features allow students and instructors to focus on learning the principles of spectrophotometry without dealing with complex programming or controls.

How accurate and stable are the measurements from this spectrophotometer?

It delivers high accuracy and stability in its measurements. It provides a wavelength accuracy of ±2 nm and a repeatability of up to 1 nm. Its photometric accuracy is ±0.5% T, and it offers excellent photometric stability at ±0.004 A/hour at 500 nm. These specifications ensure that users can rely on consistent and reproducible data for qualitative and quantitative analysis.

What are the available data output and connectivity options?

Our Visible Spectrophotometer is equipped with an RS232C interface, allowing it to connect with a computer for data transfer and further analysis. This feature is particularly useful for laboratories that require digital storage, documentation, or statistical processing of results. The RS232 connectivity ensures compatibility with standard lab software and data systems.

Visible Spectrophotometer LVS-A11

Name: Visible Spectrophotometer LVS-A11
Brand: Labtron
SKU: LVS-A11
Rating: 4.8 (652 reviews)

Visible Spectrophotometer LVS-A11 operates for a wavelength range of 320 to 1020 nm which can be adjusted manually from the dial on the front panel. It is equipped with and LED display and Czerny-Turner optical system that utilizes a 1200 lines/mm grating for wavelength dispersion. This spectrophotometer has a simple single beam optical design for ease of use. Also, it offers an error-free transmittance-to-absorbance (T-A) conversion feature. Our spectrophotometer is ideal for educational use and routine spectrophotometric analysis.

Request Quote

Wavelength Range	320 to 1020 nm
Spectral Bandwidth	5 nm
Wavelength Accuracy	± 2 nm
Wavelength Repeatability	Up to 1 nm
Optical System	Czerny-Turner (1200L/mm grating)
Photometric Range	Transmittance (T) : 0 to 199.9% Absorbance (A): -0.3 to 2.5 Factor (F): 0 to 9999 Concentration (C): 0 to 9999
Photometric Accuracy	± 0.5 % T
Photometric Stability	± 0.004 /H at 500 nm
Detector	Silicon photo diode
Light Source	Halogen lamp
Stray Light	Up to 0.3% T
Display Mode	LED
Data Output	RS232
Dimensions	420 × 350 × 185 mm
Packing Dimension	520 × 450 × 300 mm
Net Weight	6 kg
Gross Weight	8 kg

RS232 interface for data transfer
Direct concentration readout function
Spacious sample compartment
Fast and accurate wavelength adjustment

Our Visible Spectrophotometer LVS-A11 is used in universities and colleges, and for environmental monitoring & control in food and beverage production and quality control, and agricultural monitoring.

Halogen Lamp ×1 piece

Glass Cuvette × 4 piece

Power Adapter ×1 piece

Sr. No.	Name
1.	Halogen Lamp
2.	Glass Cuvette (10 mm optical path)

Download catalog for
Visible Spectrophotometer LVS-A11 Catalog

Download manual for
Visible Spectrophotometer LVS-A11 Manual

Available Range :

Visible Spectrophotometer LVS-A11 | Wavelength range 335 nm - 1000 nm | Spectral bandwidth 4 nm

Models of Visible Spectrophotometer

Labtron visible spectrophotometers have high-resolution grating systems that span a broad range of wavelengths. They use light sources that are adaptable and silicon photodiode detectors for accurate measurements. These offer numerous modes, including transmittance, absorbance, concentration, and autocalibration. They include USB and RS232 connectors and big LCD screens. Our visible spectrophotometers offer excellent measurement stability and precision for use in industrial applications and research.

Visible Spectrophotometer LVS-B10

Wavelength Range : 325 to 1000 nm
Setting Wavelength : Automatic
Spectral Bandwidth : 2 nm
Wavelength Accuracy : ± 1.0 nm

Compare Remove

Visible Spectrophotometer LVS-C12

Wavelength Range : 320 to 1100 nm
Spectral Bandwidth : 2 nm
Wavelength Accuracy : ±0.5 nm
Wavelength Repeatability : Less than or equal to 0.2 nm

Compare Remove

Visible Spectrophotometer LVS-C14

Wavelength Range : 325 to 1000 nm
Spectral Bandwidth : 4 nm
Wavelength Accuracy : ± 2 nm
Wavelength Repeatability : ≤ 0.5 nm

Compare Remove

Visible Spectrophotometer LVS-C16

Wavelength Range : 320 to 1100 nm
Bandwidth : 2 nm
Wavelength Accuracy : ± 0.5 nm
Wavelength Repeatability : ≤ 0.2 nm

Compare Remove

Visible Spectrophotometer LVS-C10

Wavelength Range : 320 to 1100 nm
Spectral Bandwidth : 4 nm
Wavelength Accuracy : ± 0.5 nm
Wavelength Repeatability : ≤ 0.2 nm

Compare Remove

Visible Spectrophotometer LVS-A41

Wavelength Range : 325 to 1100 nm
Spectral Bandwidth : 4 nm
Wavelength Accuracy : ±2 nm
Wavelength Repeatability : ±1 nm

Compare Remove

Visible Spectrophotometer LVS-A10

Wavelength Range : 320 to 1020nm
Spectral Bandwidth : 5nm
Wavelength Accuracy : ±2nm
Wavelength Repeatability : ≤1nm

Compare Remove

Visible Spectrophotometer LVS-A42

Wavelength Range : 325mm to 1000nm
Spectral Bandwidth : 4.0 mm
Wavelength Accuracy : ±2nm
Wavelength Repeatability : ≤1nm

Compare Remove

Visible Spectrophotometer LVS-A11 FAQ's

This Visible Spectrophotometer features a manual wavelength setting mechanism, which is controlled using a dial located on the front panel of the instrument. This allows users to adjust the wavelength within the range of 320 to 1020 nm. Although the setting is manual, the system is designed for fast and accurate adjustments, enabling users to easily select the desired wavelength for their specific analysis needs.
Our Visible Spectrophotometer uses a Czerny-Turner optical system, which incorporates a 1200 lines/mm diffraction grating. This system is well-known for its high spectral resolution and efficiency in dispersing light across a wide wavelength range. The light passes through the sample, and the resulting absorption or transmittance is measured by a silicon photodiode detector. This design supports high accuracy and repeatability, making it suitable for precise analytical tasks.
It is designed with simplicity, reliability, and affordability in mind, making it an excellent choice for educational institutions. It features a straightforward manual dial for wavelength selection, an LED display for direct readout of absorbance and transmittance, and user-friendly keyboard functions such as automatic 0% and 100% adjustment. These features allow students and instructors to focus on learning the principles of spectrophotometry without dealing with complex programming or controls.
It delivers high accuracy and stability in its measurements. It provides a wavelength accuracy of ±2 nm and a repeatability of up to 1 nm. Its photometric accuracy is ±0.5% T, and it offers excellent photometric stability at ±0.004 A/hour at 500 nm. These specifications ensure that users can rely on consistent and reproducible data for qualitative and quantitative analysis.
Our Visible Spectrophotometer is equipped with an RS232C interface, allowing it to connect with a computer for data transfer and further analysis. This feature is particularly useful for laboratories that require digital storage, documentation, or statistical processing of results. The RS232 connectivity ensures compatibility with standard lab software and data systems.