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Melting Point Apparatus


The Stanford Research Systems OptiMelt provides a fast and accurate means of automatically determining the melting points and melting ranges of chemical substances. With microprocessor-controlled temperature ramping, a built-in digital camera, and a selling price that is half that of competing models, OptiMelt offers the best value of any commercially available melting point apparatus.

Automated Measurements

OptiMelt is specifically designed for unattended operation. It has a built-in digital camera that continuously captures real-time images of the samples, and it uses digital image processing to determine results. The melting points and melting ranges are prominently displayed on the front panel and automatically recorded into memory for later review.

OptiMelt has an intuitive front panel and is very easy to use. Simply select a start temperature, ramp rate, stop temperature, and hit start. Results can be easily seen from across the lab on the large LCD display.

Samples can be viewed on the front panel through a removable magnification lens. During a measurement, you can flag relevant events by pressing dedicated front-panel buttons. Up to six individual temperatures can be tagged for each sample.

Interactive help is available for all functions and parameters of the instrument. Text and numerical entry keypads are built into the touch screen interface so that no external keyboard is required.

MPA100 — automated melting point system

  • Automatic & visual determination
  • PID-controlled temperature ramping
  • Digital movie of each melt
  • 21 CFR Part 11 (opt.)
  • Conforms to Pharmacopeia & GLP
  • Printer output

The Stanford Research Systems EZ-Melt is a fully automated melting point apparatus that determines the melting points of chemical substances. It’s fast, accurate, and very easy to use. You simply enter the start temperature, stop temperature, ramp rate and press Start. It’s that simple!

EZ-Melt is priced far below any other automated system, as well as most manual systems. It provides the absolute best value of any commercially available melting point apparatus.

Automated Operation

Unlike time-consuming manual melting point systems, SRS MPA120 EZ-Melt is specifically designed for unattended (automated) operation. During a melt, a closed-loop PID algorithm controls temperature ramping, and a built-in digital camera continuously monitors your samples as they melt. Using digital image processing technology, images are analyzed and the melting points (clear point and onset of melt) are determined. Results are read on the large 4-digit LED display.

SRS MPA120 EZ-Melt Melting Point Apparatus

  • Fully automated operation
  • Simultaneous analysis of 3 samples
  • PID-controlled temperature ramping
  • Digital image processing technology
  • Pharmacopeia and GLP compliant

The Stanford Research Systems DigiMelt is a modern, low cost, digital melting point apparatus designed specifically for the student lab. Students learn the visual detection capillary method of melting point determination without the frustration of trying to control the oven temperature. SRS DigiMelt rapidly heats the oven to the programmed start temperature, then ramps at the specified rate. The student carefully observes the samples and records the melting points with a touch of a button.

Digital Temperature Readout

DigiMelt incorporates a platinum resistance temperature detector (RTD) instead of the usual mercury thermometer. This means better accuracy on the readings, and no more mercury cleanup from broken thermometers. The RTD is encased inside the oven block making it virtually unbreakable.

Microprocessor Temperature Control

Some student instruments use a large knob that simply throttles power to the oven without any sense of what the target temperature is. DigiMelt uses an RTD for feedback, so it "knows" the oven temperature. This means the students can enter a start temperature, a ramp rate, and a stop temperature and the microprocessor takes care of the rest. Furthermore, the microprocessor can deliver variable amounts of power to the oven, so it can quickly ramp to the starting temperature, then perform the ramp as slowly as 0.5ºC/min.

SRS MPA160 Digital Melting Point System

  • Suitable for students
  • Mercury-free
  • Simultaneous analysis of 3 samples
  • Integral RTD thermometer
  • PID-controlled temperature ramping
  • Tube tapper packs samples
  • Easy to clean and maintain


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