BRT-1150V Visible Spectrophotometer

The BRT-1150V Visible Spectrophotometer is an economical, high-precision laboratory instrument engineered with a 1200 lines/mm holographic grating, an optimized optical path, and a high-resolution 3.5-inch TFT color LCD screen (480×320 pixels). Ideal for routine chemical analysis, industrial quality control, environmental water testing, and educational instruction, it covers the 325 nm to 1050 nm visible spectral range with a 4 nm spectral bandwidth, ±1.5 nm wavelength accuracy, and ≤0.5 nm wavelength repeatability.

Driven by a long-life tungsten halogen light source with automated wavelength positioning and automatic zero calibration, this lightweight 8 kg Visible Spectrophotometer offers high transmittance accuracy (±0.3%T) and reliable quantitative determinations. Equipped with built-in A/T/E/C/F testing modes, a spacious sample compartment supporting 5 mm to 100 mm cuvettes, onboard data storage for 200 datasets and standard curves, USB data connectivity, and parallel LPT printer support, the BRT-1150V delivers intuitive, low-noise analytical workflows.

Visible Spectrophotometer Measurement & Analysis Capabilities

This compact single-beam visible spectrophotometer allows lab operators to conduct essential routine testing directly on the standalone unit or via connected PC software:

Technological Features of BRT-1150V Visible Spectrophotometer

• 3.5-Inch TFT Color LCD Screen (480×320 Pixels)Features a sharp 3.5-inch color display combined with membrane keys and a rotary knob encoder for swift parameter configuration and easy data viewing.
• 1200 Lines/mm Holographic Grating & Low Stray LightEmploys a high-purity 1200 L/mm holographic grating and an optimized optical path to maintain low stray light and consistent transmittance accuracy (±0.3%T).
• Advanced Low-Noise Wavelength Drive SystemIncorporate a refined wavelength drive mechanism that improves wavelength repeatability (≤0.5 nm) while ensuring quiet mechanical operation during routine usage.
• Compact 8 kg Lightweight Benchtop DesignWeighing only 8 kg with a footprint of 470 × 345 × 180 mm, it maximizes valuable laboratory bench space while remaining portable between testing bays.
• Versatile Sample Chamber (5 mm to 100 mm Path Lengths)Accommodates diverse cell holders and cuvettes from 5 mm up to 100 mm optical path length, facilitating measurements for both dense and dilute liquid samples.
• USB PC Interface & Direct LPT Printer PortEquipped with a USB port for remote PC software control and data logging, as well as an LPT parallel port for direct hard-copy printing to dedicated printers.

Technical Specifications of Visible Spectrophotometer

Standard Package Accessories Included

• Main Host Unit: BRT-1150V Visible Spectrophotometer (1 unit).
• Glass Cuvettes: 10 mm Standard Path Length Glass Cuvettes (4 pcs for Visible spectrum analysis).
• Sample Cell Holder: Standard Multi-Position Cuvette Holder.
• Power & Connectivity: AC Power Adapter Cable, USB Connection Cable.
• Documentation & Software: User Instruction Manual, Quality Certificate, Warranty Card.

Testing Workflow & Target Applications

Standardized Testing Workflow:

1. Power on the BRT-1150V; allow the tungsten light source to initialize and perform automatic wavelength zeroing.
2. Select the desired test mode (Absorbance, Transmittance, Concentration, or Factor mode) on the 3.5-inch TFT color screen using the knob encoder and membrane keys.
3. Insert a solvent blank cuvette into the optical path and press zero to complete automatic 0A / 100%T baseline calibration.
4. Insert sample cuvettes to read absorbance values directly or calculate concentration automatically based on pre-set factor coefficients.
5. Save measurement results (up to 200 datasets) to internal storage, print hard copies via the LPT parallel printer port, or export to PC software via USB for advanced spectrum scanning and kinetics.

Target Customer Applications:

• Environmental monitoring stations and municipal water treatment plants (colorimetric nutrient and metal analysis).
• University teaching laboratories, high school science departments, and vocational training centers.
• Agricultural quality control labs for fertilizer, plant tissue, and soil sample testing.
• Food & beverage quality control bays for liquid clarity, color intensity, and concentration assays.

Visible Spectrophotometer FAQ

Q1: What is the main operational difference between the BRT-1150V and a UV-Vis spectrophotometer?

A: The BRT-1150V operates specifically within the visible spectrum (325–1050 nm) using a tungsten halogen light source, making it ideal and cost-effective for colorimetric assays using glass cuvettes, whereas UV-Vis units include a deuterium lamp to cover the ultraviolet range (190–325 nm).

Q2: Can the BRT-1150V accommodate long-path cuvettes for low-concentration samples?

A: Yes, the spacious sample chamber is fully compatible with cell holders designed for optical path lengths from 5 mm up to 100 mm, allowing sensitive detection of dilute solutions.

Q3: How does connecting optional PC software expand the functionality of the BRT-1150V?

A: Connecting the instrument via USB to optional PC analysis software unlocks advanced capabilities such as continuous full-spectrum scanning across 325–1050 nm, time-course kinetic monitoring, and multi-wavelength testing.