BRT-1800V Visible Spectrophotometer

The BRT-1800V Visible Spectrophotometer is a high-precision benchtop analytical instrument engineered for narrow-bandwidth photometric analysis, quantitative determination, kinetics, and routine chemical testing. Designed for environmental testing stations, chemical manufacturing QA/QC labs, agricultural inspection centers, and university research facilities, it delivers an extended visible spectrum from 320 nm to 1100 nm (325–1100 nm operational range) with a tight 2 nm spectral bandwidth, ±0.5 nm wavelength accuracy, and ≤0.2 nm wavelength repeatability.

Featuring an advanced optical layout with a 1200 lines/mm holographic grating and high-sensitivity photocell detector, this reliable Visible Spectrophotometer achieves outstanding transmittance accuracy (±0.3%T) and exceptional optical linearity. Equipped with a clear 128×64 dot-matrix LCD display, onboard memory for 100 standard curves and 200 test datasets, automatic startup self-calibration, USB PC software connectivity, and an LPT parallel printer port, the 12 kg BRT-1800V guarantees fast and reproducible analytical workflows.

Visible Spectrophotometer Measurement & Analysis Capabilities

This single-beam visible spectrometer empowers laboratory technicians to carry out multi-mode testing with automated baseline calibration and data processing:

Technological Features of BRT-1800V Visible Spectrophotometer

• Narrow 2 nm Spectral Bandwidth & 1200 L/mm Holographic Grating

  Features a 2 nm optical bandwidth and 1200 lines/mm holographic grating to ensure high optical resolution, low stray light, and sharp separation of adjacent absorption peaks.

• High Wavelength Precision (±0.5 nm Accuracy, ≤0.2 nm Repeatability)

  Delivers tight wavelength repeatability (≤0.2 nm) with a 0.1 nm resolution digital display, guaranteeing exceptional measurement reproducibility across routine testing runs.

• 128×64 Dot-Matrix LCD & Numeric Keypad Interface

  Displays standard curves and kinetic reaction graphs directly on screen, combined with sensitive membrane keys and a numeric keypad for quick input.

• Automated Startup Self-Calibration & Dark Current Zeroing

  Automates wavelength calibration, dark current zeroing, and baseline data storage upon power-on to eliminate repetitive manual setup before daily testing.

• Spacious Sample Chamber (5 mm to 100 mm Pathlength)

  Accommodates cell holders for cuvettes ranging from 5 mm up to 100 mm pathlengths, facilitating both dilute environmental samples and concentrated chemical assays.

• Dual Communications Output (USB & Parallel LPT Port)

  Includes a USB port for PC software control (enabling spectrum scanning, multi-wavelength, and kinetics) and an LPT parallel port for direct printer connection.

Technical Specifications of Visible Spectrophotometer

Standard Package Accessories Included

• Main Host Unit: BRT-1800V Visible Spectrophotometer (1 unit).
• Glass Cuvettes: 10 mm Standard Glass Cuvettes (4 pcs for Visible spectrum analysis).
• Quartz Cuvettes: 10 mm Standard Quartz Cuvettes (2 pcs).
• Sample Cell Holder: Standard Multi-Position Cell Holder.
• Power & Data Connectivity: AC Power Adapter Cable, USB Connection Cable.
• Documentation & Software: Operating Instruction Manual, Certificate of Conformity, Warranty Card.

Testing Workflow & Target Applications

Standardized Testing Workflow:

1. Power on the BRT-1800V; the system automatically executes dark current zeroing, optical baseline check, and wavelength self-calibration.
2. Select Photometric, Quantitative, or Kinetic mode from the 128×64 dot-matrix LCD menu interface.
3. Load a blank solvent reference in the cuvette chamber and trigger automated 0A / 100%T calibration.
4. Insert standard samples (up to 9 points) to build a quantitative linear curve, or connect via USB to optional PC software for full spectrum scanning and dynamic kinetic monitoring.
5. Save measurement data (up to 200 sets) and standard curves (up to 100) on internal memory, or print test reports directly using the LPT parallel port.

Target Customer Applications:

• Environmental water analysis laboratories (ammonia nitrogen, nitrate, phosphate, and heavy metal testing).
• Agricultural inspection labs, soil chemistry centers, and fertilizer manufacturing quality control.
• Food & beverage processing plants for colorimetric assessment and ingredient concentration screening.
• University chemistry teaching laboratories, research facilities, and routine chemical testing bays.

Visible Spectrophotometer FAQ

Q1: What are the analytical advantages of a 2 nm spectral bandwidth on the BRT-1800V?

A: A 2 nm spectral bandwidth provides significantly higher optical resolution compared to standard 4 nm instruments. It enables clean separation of closely spaced absorption peaks and provides higher precision when measuring complex solutions.

Q2: Can the BRT-1800V perform spectrum scanning and kinetic testing directly on the instrument?

A: The BRT-1800V performs standalone photometric, quantitative (9-standard curve fitting), and fixed-wavelength kinetics testing with graph displays on its LCD screen. Connecting to a PC via USB with the optional analysis software unlocks full continuous spectrum scanning and multi-wavelength assays.

Q3: What cuvette sizes are compatible with the sample chamber?

A: The spacious sample compartment supports cell holders for cuvettes ranging from 5 mm up to 100 mm optical pathlength, making it suitable for both concentrated liquid samples and low-concentration solutions.