THERMO FISHER SCIENTIFIC
Barnstead ThermolyneŽ Super-NuovaŽ Hot Plates and Stirrers
The Super-NuovaŽ Hot Plates and Stirrers are precisely controlled with unique calibration, safety and convenience features for researchers in need of extraordinary performance, and a phenomenal price point. The hot plate temperature is controlled in 1.8°F (1°C) increments and is exceptionally precise in the temperature range below 212°F (100°C). User calibration of temperature provides the greatest accuracy for critical procedures. An external probe (included) provides ultimate control of solution temperature. Electronic temperature feedback keeps plate temperature constant and allows the use of metal vessels or sand baths. User defined over-temperature protection means the maximum plate temperature can be set below the flash point of heated liquids.more
Convenience and safety features include "Top-Is-Hot" warning system (active until unit is below 122°F (50°C), even when the unit is off), temperature and stirring presets that work like a car radio's tuner (eliminating the need for pencil markings of often-repeated procedures), a "walk-away" timer which shuts off stirring and or heating after a preset interval (you can finally leave that digestion to finish on its own), a diode - which indicates if temperature readings are from the heating surface or from the external probe (in solution), and a stirring "pause" button - which allows quick vessel changeover.
Hot Plate models have displays indicating plate temperature, or solution temperature when used with the external probe. Stirring Hot Plate models have both temperature and rpm displays. All units' displays indicate error codes and calibration modes, as well as the various temperature settings. All units are available with a seamless white ceramic top plate for quick heat-up and maximum heat transfer, and the ceramic material stays flat regardless of heat settings. These plates are chemically resistant and easy to clean. The brilliant white color aids in the visibility of color-metric changes. The 7.5 x 7.5" models are also available with an aluminum top plate, offering truly even heating over the entire plate. Temperature range for ceramic models is ambient 41°F to 698°F (+ 5°C to 370°C); aluminum units are ambient 41°F to 572°F (+5°C to 300°C).
The hot plate stirrers incorporate a powerful rare-earth magnet mounted on a high torque motor. Motor speed is electronically controlled by the proprietary StirTrac system, offering many benefits hard to find in this price range. Stirring speed stays at the set point regardless of viscosity changes to the solution. Stir bar decoupling is a thing of the past, and users enjoy fine control of slow speeds. The powerful motor allows quick start-up, provides a powerful vortex, and prevents slow speed "lurching". Speed ranges for all models is 50 to 1200rpm. All models shown are 120V, 60Hz. Other voltages are available.