Specifications

Controlling Top Plate
Temperature
Your MIRAK 4-place stirring hot plate will control
the top plate, and the display will indicate top
plate temperature WHENEVER THE PROBE IS
NOT PLUGGED IN. When the unit is displaying
the top plate temperature the word TOP on the
front panel will be illuminated.
Controlling Solution
Temperature
To control your solution temperature simply plug
an ungrounded Type K thermocouple probe into
the single probe receptacle located on the back
of the unit and place the probe in your solution.
The display will indicate the actual temperature
of the solution as measured by the probe, and
the word PROBE on the front panel will be illu-
minated.
The solution probe offers more exact tempera-
ture control than regulating the top plate by the
thermal internal sensor. If you need to maintain
a precise setpoint, we recommend using a
probe to control the solution temperature
instead of controlling the top plate temperature.
When using a probe with your MIRAK 4-place
stirring hot plate, it is recommended that you
use a clamp on a support rod to hold the probe
in your solution.
To ensure accurate probe readings, as much of
the probe sheath as possible should be
immersed in your solution.
16
OPERATION
Note
The top plate temperatures will
be higher than your solution
temperature.
Note
The top plate temperature will
not exceed 540C.
Warning
If the probe is plugged into your
4-place stirring hot plate while
the heat control is operating but
is not in solution, the tempera-
ture display will continue to indi-
cate an ambient temperature.
Because the setpoint cannot be
reached, the element will contin-
ue to supply heat to the top
plate, and the maximum top
plate temperature of 540°C may
be reached.
When using the probe accesso-
ry, make sure the probe is
always in the solution when the
heat control is operating. (Any
Type K thermocouple used must
be an ungrounded type.