What are the instructions for use and maintenance of box-type resistance furnaces?

What are the instructions for use and maintenance of box-type resistance furnaces? Box-type resistance furnace is a relatively common laboratory equipment at present.
It is composed of furnace door, electric heating element, furnace shell, control box, furnace lining and other parts
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The following is to introduce to you the instructions for use and maintenance of the resistance furnace, let's understand together
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Instructions for use 1.
Before powering on, check whether the wiring is in compliance and whether the wiring screws on the controller are loose
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2.
Weigh the sample and put it in the furnace, close the furnace door, and turn on the electric furnace switch; 3.
Pull the switch on the controller to the "set" position to set the test temperature; 4.
After the setting is completed, pull the switch back When it reaches the "measurement" position, the electric furnace starts to heat up, and the meter is displayed by a green indicator light; 5.
Turn off the electric furnace switch after the working time is up, and take out the sample after cooling
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Maintenance matters 1 The controller should be placed in a dry and ventilated place without corrosive gas, the working environment temperature is -10-50 ℃, and the relative humidity is not more than 85%
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2 In order to ensure the accuracy of the measurement, a DC potentiometer should be used to calibrate the thermometer of the XMT type temperature controller every year to avoid large errors
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3 Regularly check whether the wiring of each part is loose, and whether the contacts of the AC contactor are in good condition.
The fault should be repaired in time
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 The above is the introduction to the instructions for use and maintenance points of the box-type resistance furnace.
I believe that you have a corresponding understanding of it after reading it, and I hope it will help you
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