Labnet AccuPlate Hotplates, Stirrers and Hotplate Stirrers - Manual (Page 6)

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5. When desired stirring is complete, turn the Stir Control Knob to the OFF position. Allow
stir bar to cease rotation before removing the vessel from the unit.
6. Heating and stirring can be performed simultaneously on the D0420 models which offer
both heating and stirring functions.
Please note that the viscosity of the stirred material will affect the ability of the stir bar to remain
coupled to the rotating ring magnet. Materials of high viscosity must be stirred at slower speed
settings.
Heating Instructions (without External Temperature Controller)
D0400, D0420
1. Fill vessel with solution to be heated.
2. If using a D0420 and the stirring function, place stir bar into vessel.
3. Place vessel in the center of the top surface.
4. Turn Heat Control Knob until the Heating Temperature Display shows the desired heating
temperature. The temperature setting can be adjusted in 5°C increments.
 Flashing Display: The number shown on the Heating Temperature Display will
FLASH when the actual heating temperature is not at the set temperature.
 Constant Display: The number shown on the Heating Temperature Display will
remain constantly ON when the actual heating temperature is at the set
temperature.
 Hot Top Indicator: The Hot Top Indicator will be ON at all times when the
temperature of the top surface is too hot to touch (greater than ~60°C).
 The Hot Top Indicator will FLASH when the Heat Control Knob is turned OFF
but the top surface is still too hot to touch.
 The Hot Top Indicator will be OFF when the temperature of the top is less than
~60°C.
Caution: The Hot Top Indicator will turn OFF when the power cord is disconnected
from the product even if the temperature of the top surface
Heating Instructions (with External Temperature Controller)
D0400, D0420
1. Connect the External Temperature Controller to the connector on the back of the unit.
Temperature Probe in Use Indicator: This will illuminate when External Temperature
Controller is properly connected.
2. Fill vessel with solution to be heated.
3. If using a D0400 and the stirring function, place stir bar into vessel.
4. Place vessel in the center of the top surface.
5. Insert the tip of the External Temperature Probe into the solution.
- The tip should be located in the center of the vessel and at approximately one-half
of the depth of the solution.
6. Secure the position of the External Temperature Controller by using a ring stand/support
rod and clamp.
- Assure that the cable of the External Temperature Controller does not come into
contact with the heating surface.
7. Turn Heat Control Knob until the Heating Temperature Display shows the desired heating
temperature. The temperature setting can be adjusted in 5°C increments.
 Flashing Display: The number shown on the Heating Temperature Display will
FLASH when the actual heating temperature is not at the set temperature.