Programmable Digital Stirring Hot Plate Has 5-Stirring Positions

A new programmable, digital, stirring hot plate with 5-stirring positions is ideal for use in chemical, pharmaceutical, environmental, biochemical, and other laboratories where reproducible, accurate, hands-off sample preparation is essential.

Heater plates are 30.5 cm × 30.5 cm white, solid ceramic glass for good chemical resistance and quick heating. The plate surface can be heated from ambient to 400 °C. Plate surface temperature or solution temperature is controlled directly using the appropriate proportional-integral-derivative (PID) control loop to 1 °C of the target. Accuracy is 1% of the reading using platinum resistance temperature detector (RTD) circuitry. The units are supplied with temperature calibration certificates traceable to National Institute of Standards and Technology (NIST).


Programming is done through the front panel membrane switch and full-functioned custom liquid crystal display. The unit can store 10 programs in memory of as many as 10 steps each where each step is a temperature, temperature ramp rate, stirring speed, and time.

Each program can be made to repeat itself automatically from 1 to 98 times or infinitely if preferred. All programs are stored electronically. In addition, each stirring position can be set to the same speed or to individual speeds.

Torrey Pines Scientific, Inc. (Carlsbad, CA, USA) introduced the new hotplate, which is called the EchoTherm Model HS65. The model is available in 100 VAC, 115 VAC, and 230 VAC, 50/60 Hz models. All units are Underwriters Laboratories Inc. (UL), Canadian Standards Association (CSA), and CE marking certified.

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Torrey Pines Scientific, Inc.