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Experimental control is possible by use of the same size magnet, and same speed for each test. Also, the heat can be the same.
Procedure:
| 1. | Before making electrical connections, be sure that all switches are in the OFF position. |
| 2. | The staring point may vary depending upon line voltage, type of food, thickness of holding vessel, etc. Some of the sitrrers may start at 0, some at 3, etc. |
| 3. | The hot plate is controlled by the switch on the right side of the unit. The knob adjusts the thermostat for desired temperature.
To increase heat, turn knob counterclockwise. |
| 4. | Pilot light indicates when the heat is ON; that is, when the thermostat is allowing the heat to be on, the ipilot is ON and when the thermostat turns the heat to off, the pilot light is OFF. |
| 5. | To use the magnetic stirrer, a magnet must be placed in the beaker. |
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