Barnstead International MIRAK 725 Series, Operation Manual And Parts List, Page: 5 / 36

Please read all the information in this manual before
operating the unit.
Your Thermolyne MIRAK™ hot plate, stirrer or stirring hot
plate is a general purpose heating and/or stirring plate
designed for laboratory procedures requiring precise con-
trol of temperature and/or stirring speed. Each MIRAK
model includes a digital display for monitoring actual tem-
perature or stirring speed, and the stirring hot plate mod-
els have dual displays so temperature and stirring speed
can be monitored simultaneously. The hot plate is capa-
ble of producing accurately controlled top plate tempera-
tures from 40°C through 540°C on all 7" x 7" models and
the 208 volt and 240 volt models of the 12" x 12" hot
plates. (12" x 12" 100 volt and 120 volt models have a
temperature range of 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 stain-
less steel immersion probe, or a chemical-resistant 7"
solid Teflon® immersion probe may be ordered separate-
ly. 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 7" x 7" or 12" x 12" top plate on the MIRAK
units is solid ceramic, and is suitable for use with glass or
metal vessels.
Your MIRAK hot plate, stirrer or stirring hot plate may be
used for general purpose heating applications and/or gen-
eral laboratory mixing of solutions, including sample
preparation, heating reagents, melting paraffin, warming
resinous chemicals, content analysis, solvent evapora-
tions, digestions, media preparation and sterilization, titra-
tions, sand baths, and microscale chemistry applications.
5
Introduction