DJM1815-87, DJM1815-97, DJM1815-115 ceramic electrode

DJM1815-87, DJM1815-97, DJM1815-115 ceramic electrode

Product introduction DJM external thread type, DJY press-in series electrical contacts use high-purity alumina ceramic tube as insulation material, and a high-temperature corrosion-resistant expansion alloy sealed by a special gold pottery welding process at high temperature. Components (the expansion coefficient of the alloy is the same as that of the alumina ceramic tube). The product is mainly installed on the primary element (measuring cylinder) and the secondary display instrument level gauge, measuring high, medium and low pressure boilers: heater, condenser, deaerator, boiler signal level conversion of bubble water level.

External thread type: DJM1615-87 DJM1615-97 DJM1615-115 DJM1815-87 DJM1815-97 DJM1815-115 DJM2015-87 DJM2015-97 DJM2015-115

Press-in type: DJY2212—115 DJY2212—97 DJY2212—87 DJY2012—115 DJY2012—97 DJY2012—87 DJY1712—87 DJY1712—97 DJY1712—115

Because the electrical conductivity of water and steam varies greatly. The function of the measuring cylinder of the electric contact liquid level gauge is to obtain the signal through the change of the electric contact resistance. The insulator of the electric contact electrode can insulate the electric contact and the shell of the measuring cylinder. In the liquid state, due to the low resistance value of water, the electric contact is connected to the shell of the measuring cylinder. When an AC voltage is applied between the electrical contacts, the current flowing is large, and the integrated op amp in the secondary instrument can be turned over, and the color-changing light-emitting tube on the panel will display a "green" color; The lower electrical contact is in the vapor state. Because the resistance value of the vapor is large, it can be regarded as an open circuit relatively, the current flowing through is small, the integrated op amp in the secondary instrument does not flip, and the color-changing light tube on the panel shows "red".