Operation instructions and precautions of SK2 series tubular electric furnace

This series of resistance furnaces are used for chemical analysis, physical measurement and thermocouple verification in laboratories, industrial and mining enterprises and scientific research units This series of resistance furnace needs to be used together with KSW temperature controller and K-type thermocouple to measure, indicate and automatically control the temperature of the furnace Installation and use: 1 This series of electric furnaces do not need special installation, and can be placed on flat indoor ground or workbench But the matched controller should avoid vibration, and should not be placed too close to the electric furnace, so as to prevent overheating affecting the normal operation of the control part 2 Insert thermocouple from couple hole, and fill the gap between couple hole and thermocouple with asbestos rope to prevent heat loss 3 Uncover the shell of the temperature controller and connect the power line, electric furnace line, thermocouple and safety switch line according to the standard Since the controller shares the central line of the electric furnace, the phase line and the central line cannot be reversed Pay attention that the "+" "-" pole of the thermocouple cannot be reversed, otherwise the instrument will not indicate 4 Adjust the mechanical zero point by connecting the "short" and "short" wires on the rear terminal block of xct-101 temperature indicator If compensation wire and cold end compensator are used, adjust the mechanical zero point to the reference temperature point If compensation wire is not used, adjust the mechanical zero point to the scale zero position But the indicated temperature is the temperature difference between the measured point and the cold end of the thermocouple 5 After checking that the wiring is correct, cover the controller housing, adjust the pointer of the temperature indicator to the required working temperature (i.e turn the screw at the lower corner of the indicator panel), then turn on the power supply, turn on the control power switch, and the green light will be on at this time When the relay starts to work and the electric furnace is powered on, the ammeter will read and the pointer of the temperature indicator will rise gradually, which means that the electric furnace and the temperature controller are working normally 6 The heating and constant temperature of the electric furnace are respectively indicated by the red and green lights, and the red lights indicate the constant temperature Maintenance and precautions: 1 When the electric furnace is used again after * times of use or long-term shutdown, it must be dried once The baking time is: room temperature - 200 ℃ for 2 hours, 200 ℃ - 600 ℃ for 2 hours The furnace temperature shall not exceed Zui high temperature during use, so as to avoid burning the original electric heating element 2 The electric furnace and controller must work in the place where the relative humidity is not more than 85%, there is no conductive dust, explosive gas and corrosive gas which can damage the metal insulation and is harmful to the electronic components 3 Regularly check whether the terminals of electric furnace and controller are in good contact, whether the pointer of indicator is stuck when moving, and check whether the scale error of indicator is large with potentiometer 4 The working environment temperature of the controller is limited to 0 ℃ - 50 ℃ When handling, the "short" and "short" wires on the instrument rear terminal block must be connected with wires to prevent the instrument from being damaged by vibration 5 The furnace temperature shall not exceed Zui high temperature Shangyu Star Instrument Equipment Co., Ltd is located in Daoxu Town, Shangyu District, Shaoxing City, Zhejiang Province It is an enterprise integrating production, product development, processing and trade The company's main products: drying box series, incubator series, laboratory muffle furnace series, distiller series, as well as clean workbench, air shower room, ventilation cabinet, biosafety cabinet and other complete sets of purification equipment The company has a strong technical research and development team, a strong after-sales service system, is the leading manufacturer of complete set of laboratory equipment in China, welcome customers to buy