The Stanford Research Systems MPA120 Optimelt is a fully automated melting point determination system that analyzes up to three samples simultaneously using digital image processing and PID-controlled temperature ramping. The instrument identifies clear points and onset of melt with 0.1 °C resolution across a range up to 400 °C, delivering repeatable results compliant with Pharmacopeia and GLP standards. Its compact aluminum oven design, built-in magnification lens, and wide observation window with internal illumination enable precise sample viewing without manual intervention.
Technical Specifications
• Temperature measurement: Platinum RTD sensor, 0.1 °C resolution, up to 400 °C
• Temperature control: PID-controlled microprocessor ramping with selectable rates from 0.1 °C/min to 20 °C/min (1-2-5 sequence)
• Sample capacity: Three simultaneous samples
• Detection method: Digital image processing technology
• Temperature tagging: Up to four individual temperatures per sample via front-panel buttons
• Capillary tubes: 100-count pack included; 1.4–2.0 mm OD, 100 mm length recommended; 2–3 mm fill height
• Display: 4-digit LED for results and status
• Oven: Compact aluminum construction
• Power: 90–264 VAC, 47–63 Hz, 125 W consumption
• Dimensions: 7.5″ W × 10″ D × 8.5″ H; 9 lbs
• Operating environment: 0 °C to 40 °C, non-condensing
– Key Features
• Fully automated operation — no operator attendance required
• PID temperature control for fast, repeatable warm-up and cool-down cycles
• Field calibration using certified reference standards
• Integrated magnification lens with wide observation window and internal illumination
• GLP-compliant data handling and documentation
– Typical Applications
Quality control, pharmaceutical compliance testing, research and development.
– Compatibility & Integration
• USB interface for instrument control and data querying
• RS-232 serial port for Epson-compatible dot-matrix printer output

















