Working principle of electric contact thermometer and verification method

Electric contact thermometer is actually a thermometer control circuit switch, just more than ordinary thermometer on the device for an electric contact signal. Electric contact thermometer is suitable for the fluid pressure measuring no explosion hazard. Usually, the electric contact thermometer with corresponding electrical devices, Such as relay and contactor, etc. ) To be measured, can ( Control) Pressure system to realize automatic control, and a letter ( Alarm) The purpose of. Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

the structure principle of electric contact thermometer electric contact thermometer by measuring system, indicating device, the electric device or magnetic electric contact device, housing, adjustment device and junction box, etc. Working principle of electric contact thermometer is based on the measurement system of bourdon tube under the action of the pressure of tested medium, forcing the end of the spring tube produce corresponding elastic deformation, with the help of tie rod and to amplify the transmission gear transmission mechanism, the fixed on the shaft of the instruction pointer ( Along with the contact) By the measured value on the dial indicator. At the same time, when the electric contact thermometer and set the contact on the pointer ( The upper or lower limit) Contact ( Move off or close) The instantaneous, the control system of circuit disconnection or connection, to achieve the goal of automatic control and mail the letter. Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

electric contact thermometer calibration and verification of pressure ordinary thermometer is same, only the pressure part after verification qualified, still need to increase the verification for the electric contact signal device. Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

electric contact thermometer calibration steps in a validator, thermometer with dial needle detector respectively two signal contact pointer to the upper limit and lower limit, and then for verification. Certified value, the upper and lower limits of the signal contact pointer is scheduled for more than three different check point, slowly increase or reduce the pressure, resin until the signal instantaneous. Pointer thermometer readings and then standard signal in the value, the deviation between the absolute value of basic error must not exceed the allowed, there are two happens either early or late, electric contact signal; Second, the electric contact device will not occur. Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

electric contact signal is either early or late contact malposition or contact metal rod is loose. Contact malposition, perpendicular to the correct hair will contact calibration signal. Loose contact metal bar, should try to solid, mild, adopt appropriate balance spring to enlarge, increase the torque balance spring, also have the effect. Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

the electric contact device of signal reasons: contact too dirty poor contact, signal device insulation be affected with damp be affected with damp, circuit impassability, etc. Contact is too dirty, use sandpaper to remove dirt, insulation be affected with damp be affected with damp, with hot air blowing in, circuit impassability, should look for open circuit and repair. Magnetic flap Qyb | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

the above steps and matters needing attention when mastering how to check the key of electric contact thermometer. If in doubt, you can call advisory 0517 - thermometer factory 86951201. Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

Qyb magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

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