MIRAK Thermolyne stirrer
MIRAK™ stirring hot plate is a general purpose heating and/or stirring plate designed for laboratory procedures requiring precise control of temperature and/or stirring speed.
Each MIRAK model includes a digital display for monitoring actual temperature or stirring speed, and the stirring hot plate models have dual displays so temperature and stirring speed can be monitored simultaneously. The hot plate is capable of producing accurately controlled top plate temperatures from models of the 12″ x 12″ hot plates 40°C to 370°C . The temperature may be controlled at the plate surface by an internal Type K thermocouple sensor, or the solution temperature may be controlled by utilizing an accessory ungrounded Type K thermocouple probe. A 6″ or 10″ general purpose stainless steel immersion probe, or a chemical-resistant 7″ solid Teflon® immersion probe may be ordered separately. The stirrer will accurately maintain stirring speeds from 60 rpm up to 1200 rpm. On stirring hot plate models, the accessory probe may also be utilized to display the actual temperature of heat-sensitive solutions during stirring-only functions. The 12″ x 12″ top plate on the MIRAK units is solid ceramic, and is suitable for use with glass or metal vessels. MIRAK stirring hot plate may be used for general purpose heating applications and/or general laboratory mixing of solutions, including sample preparation, heating reagents, melting paraffin, warming resinous chemicals, content analysis, solvent evaporations, digestions, media
preparation and sterilization, titrations, sand baths, and microscale chemistry applications.
12″ x 12″ models.
100 and 120 volt 12″ x 12″ models.
40°C to 370°C
Heat-up time to maximum temperature (unloaded top plate). 8 minutes
Temperature stability at the center of the top plate surface (@ 70°C). ± 2.0°C
Stability of the solution temperature (400 ml of water in a 1000 ml glass flask).
Controlled by the top plate at 70°C setpoint (solution maintained at 30°C). ± 1.0°C
Controlled by the Barnstead|Thermolyne recommended immersion
probe at 70°C setpoint (solution maintained at 70°C). ± 1.0°C
Accuracy of the temperature display vs the actual temperature at the center of
the top plate (setpoint 70°C). (Top plate temperature was verified with an
infrared camera mounted approx. 26″ above the center of the top plate surface;
temperature accuracy at the edges of the top plate may vary from the stated
accuracy.) ± 4.0°C
Accuracy of the temperature display vs the actual solution temperature as
measured by the stainless steel or Teflon® immersion probe (setpoint 70°C). ± 2.0°C
Stirring Speed Specifications
Speed Range 60 to 1200 RPM
(Maximum speed is dependent on the viscosity of the solution)
Stability of the stirring speed setpoint (600 ml of water in a 1000 ml glass flask) ± 2.0 RPM
Accuracy of the speed display with the actual stirring speed ± 2.0 RPM
Top Plate Size 12″ x 12″ Max. Recommended 6 liters 30 lbs