FTIR 7800A Spectrophotometer
High-Performance Double Beam Spectrophotometers for Advanced Analytical Precision
The T85 series UV-Visible Spectrophotometers from PG Instruments are high-performance double beam systems engineered for superior accuracy, stability, and analytical flexibility. Designed for demanding laboratory environments, the T85 range combines precision optics, advanced electronic control, and powerful software capabilities to deliver reliable and reproducible results across a wide spectrum of applications.
Available in two configurations:
• T85 – Fixed 1.8 nm spectral bandwidth
• T85+ – Variable bandwidth: 0.5, 1.0, 2.0, 4.0 nm
Both models offer a wavelength range of 190–1100 nm, making them ideal for UV and visible applications in pharmaceutical, environmental, chemical, academic, and industrial laboratories.
Key Features
• Double Beam Optical System for enhanced stability and accuracy
• Wavelength range: 190–1100 nm
• Fixed (1.8 nm) or variable (0.5–4.0 nm) spectral bandwidth
• Holographic blazed grating (1200 lines/mm)
• SiO₂ coated mirrors to minimize stray light
• Pre-aligned Tungsten Halogen and Deuterium Arc lamps
• Automatic motorised 8-position cell changer (standard)
• Digital HD 10-inch touch screen
• GLP/GMP compliant DPA-Win software
• USB PC connectivity
• Modular design for easy maintenance
Analytical Capabilities
The T85 series performs comprehensive UV-VIS analyses both as a standalone unit and when connected to a PC.
Measurement Modes
• Photometric measurement
• Quantitative analysis
• Kinetic analysis
• Spectral scanning
• Multi-wavelength measurement
• DNA/Protein analysis
Advanced Data Handling
• Three selectable scan speeds
• Six selectable scan intervals
• Data storage to internal memory or USB
• Data transfer via Excel, TXT, Windows clipboard
• Bluetooth network data transfer capability
• Optional inkjet or laser printer connectivity
• Concentration units: µg/L, mg/L, g/L, ppm, mol/L
Optical System & Engineering
The T85 series utilizes a high-stability double beam optical configuration, ensuring excellent baseline stability and compensation for lamp intensity fluctuations.
Optical Highlights
• Double beam optics for enhanced photometric stability
• Silicon photodiode detectors
• SiO₂ coated optical mirrors
• Low stray light ≤ 0.03%T
• Suspension-designed optical platform mounted on deformation-free aluminum base
• Modular construction for easy servicing
• Pre-aligned lamps for superior stability across full wavelength range
The fully sealed optical structure protects internal components from dust and corrosive gases.
Touch Screen Interface
The instrument features a 10-inch HD smart touch screen offering:
• Response time < 3 ms
• Adjustable brightness
• Automatic initialization diagnostics (pass/fail system check)
• Real-time lamp monitoring
• Easy lamp switching (300–400 nm crossover)
• Highly automated workflow requiring minimal key input
DPA-Win Software (PC Connectivity)
The optional DPA-Win software enhances instrument control and compliance.
Workspaces
• Photometric Analysis
• Quantitative Analysis
• Kinetic Analysis
• Spectral Analysis
• Multi-Wavelength Analysis
• DNA-Protein Analysis
Compliance & Administration
• GLP/GMP conformity
• 21 CFR Part 11 Electronic Records compliance
• User group creation with privilege control
• Password-protected login
• Detailed audit trail logging
• Administrative settings for regulated environments
Technical Specifications
Standard Accessories (Included)
• 8-position 10 mm motorised cell holder
• 1 pair 10 mm quartz cells
• 4 × 10 mm glass cells
• Qualification book
• Power cord
• Instruction manual
• Dust cover
• Packing list
Optional Accessories
To extend application flexibility:
• Automatic 5-position variable cell holder
• Thermostatic cell holder
• Adjustable micro cell holder
• Integrating sphere
• Reflection accessory
• Film sample holder
• Test tube holder
Why Choose the T85 Series?
• True double beam optical precision
• Superior baseline stability
• High wavelength accuracy (±0.3 nm)
• Ultra-low photometric noise
• Regulatory-compliant software
• Robust construction for long-term reliability
• Ideal for high-accuracy research and QC laboratories
