1, the furnace does not require special installation, only flat on the indoor floor or on the shelf. The controller should be placed on the workbench, the inclination of the workbench surface shall not exceed 5 degrees. The minimum distance between the controller and the furnace shall not be less than 0.5 meters. The controller should not be placed on top of the furnace, so as not to affect the normal operation of the controller.
2, with the controller and the furnace connected to the power cord, switch and fuse load capacity should be slightly greater than the rated power of the furnace.
3, wiring, first of all, turn loose the screws on the left and right sides of the controller shell, and then cover the shell up, according to the diagram to connect the power cord. Controller and furnace wiring and thermocouple connection line (preferably using compensation wire). Insert the thermocouple into the furnace chamber from the small hole of the thermocouple fixing seat, plug the gap between the hole and the thermocouple with asbestos rope, and then fix it. (Note: the phase of the power supply - and the middle line can not be connected to the reverse, in order to operate safely, the controller and the furnace need to be reliably grounded)
4, after checking the wiring is correct can be energized, the first close the power switch, and then the controller panel on the knob switch pulled to the position of the open, adjust the setting button to set the temperature to the degree that you need to be set to the degree of if the setting switch pulled to the position of the measurement, the red lamp goes out ( NO), there is also a contactor suction sound, the furnace is energized, the ammeter indicates the value of the heating current, the temperature rises with the temperature inside the furnace, indicating that the work is normal.
When the temperature rises to the set temperature required, the red light off (NO), green light (YES), the furnace automatically cut off, stop heating. Later, when the furnace temperature drops slightly, the green light is off, the red light is on, the furnace is automatically energized. Week after week, to achieve the purpose of automatic temperature control furnace.
5, in order to check whether the broken couple protection device is working properly, the method is: release the end of the thermocouple, this time the temperature indication rises rapidly to the highest point also automatically cut off the heating power supply, the broken couple device is good, reconnected to a good thermocouple, can work normally.
6, baking furnace, when the furnace for the first time or a long period of time after the use of reuse, must be baked. The process is as follows:
When the room temperature rises to 200 ℃ 4 hours (open the door to let the water vapor emission);
When 200 ℃ to 600 ℃ 4 hours (close the door);
When 600 ℃ to 800 ℃ 2 hours (close the door).
7, use finished, first of all, the control panel on the knob switch pulled to the off position, and then cut off the main power switch. 1, before energizing, first check whether the wiring is in line with the controller and other wiring screws are loose.
2, weigh the specimen and put the furnace, and close the door, open the furnace switch;
3, the controller switch to "set" position, set the test temperature;
4, set the completion of the switch back to the "measurement
4 、When the setting is finished, pull the switch back to "Measurement" position, the electric furnace starts to warm up, and then the meter is shown by the green light;
5 、When the working time is up, turn off the switch of the electric furnace, and take out the samples after it cools down. 1. Do not exceed the maximum temperature of the resistance furnace when using.
2. Be sure to cut off the power supply when loading and removing samples to prevent electric shock.
3. Load the sample when the door should be opened for as short a time as possible, in order to extend the service life of the furnace.
4. Prohibit the filling of any liquid into the furnace chamber.
5. shall not be stained with water and oil specimens into the furnace chamber; shall not be stained with water and oil clamps to load the specimen.
6. Wear special gloves when loading and removing specimens to prevent burns.
7. The specimen should be placed in the middle of the furnace chamber, neatly placed, do not put.
8. Do not touch the furnace and the surrounding specimens.
9. After use should be cut off the power supply, water.
10. Without the permission of the management personnel shall not operate the resistance furnace, in strict accordance with the operating procedures of the equipment. 1. Use the furnace chamber temperature shall not exceed the maximum furnace temperature, and do not work for a long time above the rated temperature.
2. The working environment conditions are: temperature 0 ~ 50 ℃, relative humidity & lt; 80%, no conductive dust, no flammable and explosive substances and corrosive gases.
3. When using the furnace door to open and close gently to prevent damage to the components.
4. In the furnace chamber to take and put the sample, you should first shut off the power supply, and gently take and put to ensure safety and avoid damage to the furnace chamber.
5. In order to prolong the service life of the product and ensure safety, after the use of the equipment in a timely manner from the furnace chamber to remove the sample, quit heating and turn off the power.
6, the equipment environment atmospheric pressure: under atmospheric pressure.