Laboratory furnace installation and use what precautions

Laboratory furnace name suggests, also known as batch-type furnace, is not used for continuous industrial production before they are referred to as laboratory furnace. Laboratory furnace is the national standard energy-saving cycle operation furnace, mainly for steel products, metal parts fire, hardening, annealing heat treatment purposes, installation and use what precautions?
1 furnace without special installation, just flat on the interior floor or stand. Controller should be on the table, the work surface should not exceed 5 degrees tilt the controller from the furnace is not less than 0.5 meters minimum distance between the controller should not be placed above the furnace, so as not to affect the controller is working properly.
(2) is connected to the controller and electric furnace power cord, switch and fuse the load capacity of the furnace should be slightly larger than the rated power.
3 wiring, first loosen the screws on both sides around the controller enclosure, and then turn on the cover, connect the power cord as illustrated. Controllers with electric stove and thermocouple cable connection (best to use compensation wire ) would thermocouple thermocouple holder from the hole to insert the furnace, the gap between the hole and the thermoelectric clogged with asbestos rope, and then fixed. (Note: The power phase - and the middle is not reversed, for safe operation, the controller required to be grounded and electric furnaces)
4 Check the wiring is correct then energized, the first on the power switch, and then the controller panel toggle switch on the pull towards the open position, adjust the Settings button, set the temperature to the degree you need, if set the switch to pull to the measurement position, the red light off (NO), also contactor pull sound, electric powered, ammeter indicates the heating current value, the temperature rises slowly with the furnace temperature rise, indicating working properly.
When the temperature rises to the set the desired temperature, the red light off (NO), the green light (YES), electric stove off automatically, stop warming. Later, when the furnace temperature dropped slightly, the green light is off, the red light, furnace and automatic power. again and again, to automatically control the furnace temperature.
5 To check burnout protection device is working properly, the method is: Loosen the thermocouple end, when temperature rose rapidly to the highest point instructions also automatically cut off the heating power, the burnout means good, good reconnected thermocouple , it can work properly.
6 ovens, electric stove the first time or when the long-term disabled again after use, the oven must be its process is as follows:
When the room temperature to 200 ℃ 4 h (open the door so that water vapor circulated)
When 200 ℃ to 600 ℃ 4 h (closed door)
When 600 ℃ to 800 ℃ 2 h (closed door)
7 After use, first on the control panel toggle switch to the off position pull, then cut off the main power switch.