Specifications

Each MIRAK unit utilizes the latest in micro-
processor technology to deliver the most reli-
able, accurately controlled, ceramic top hot
plate, stirrer and stirring hot plate on the market.
Your MIRAK 4-place 240 volt and 208 volt stir-
ring hot plate has an electronic closed loop
feedback control which will accurately maintain
temperature setpoints from 40°C to 540°C. The
120 volt MIRAK 4-place stirring hot plate will
maintain temperature setpoints from 40°C -
370°C. The top plate surface temperatures are
calibrated and verified at the factory using the
latest in infrared temperature measurement. The
measurements are made with an infrared meter
mounted approximately 26” above the top sur-
face of the hot plate or stirring hot plate. If the
temperature measurement of the ceramic top is
made with measurement devices other than the
infrared, the error of the measuring technique
may be greater than the error of the unit.
The MIRAK stirring Hot Plate units use an
ungrounded Type K thermocouple for measuring
both the top plate temperature and the solution
temperature when using the probe. Both top
plate surface and probe temperature are meas-
ured with independent analog circuits. This pro-
vides a significant increase in certain types of
metal vessels and sandbaths on the MIRAK
without damaging the ceramic top. However, we
recommend that you do not control the temper-
ature with a probe when heating a metal vessel
or a sandbath.
The electronic stirring speed control on 4-place
MIRAK units will maintain the speed setpoint
when the unit is loaded at ±4 rpm as displayed
by the LED display on the unit. There are four
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Principles of Operation