Thermocouple correct selection and use of the method is introduced

Thermocouple is commonly used in * wireless temperature measuring instrument of temperature measuring element, can help us measure temperature accurately. Good quality thermocouple, it is not easy to damage, and service life is long, the more profit for company. And poor quality of the instrument, will stay out of the question, let alone be bored. So we in the choose and buy when, want to master the correct method, so as to guarantee the quality of products. What are the specific elements is we need to master?

1, the choice of using the atmosphere S type, type B, K type thermocouple is suitable for use in strong oxidation and weak reducing atmosphere, J type and T type thermocouple is suitable for weak oxidizing and reducing atmosphere, if use air tightness better protection tube, the atmosphere is not too strict. Humidity sensor probe, thermocouple PT100 sensors, stainless steel, cast aluminum heater, heating coil fluid solenoid valve

2, durability and thermal response selection line diameter thermocouple better durability, but some response is slow, the heat capacity of thermocouple, response is slow, measure the gradient of temperature, in the case of temperature control, temperature control is poor. Requirements for fast response time and has certain durability requirements, choose armored even more appropriate.

3, the nature of the measured object and the state's choice of thermocouple motion object, vibration, temperature measurement requirements of high mechanical strength, high pressure vessel with chemical pollution of the atmosphere requires protecting tube, with electrical interference requirements under the condition of the insulation is quite high.

wireless temperature thermocouple how to use the tester?

when using a thermocouple, temperature tester don't knot or fold into more than 90 degrees, so it is easy to cause the internal fracture, two core wire is broken after you all don't know where is broken, so this thermocouple is useless, to be more careful when using, not rough construction.

2, according to the temperature of the glass fiber tester thermocouple, when plug must remember to hold the male plug with the hand to pull out, not to stay, causing cases so easily be pulled loose or pull the plug, causing line core is exposed, and cause short circuit phenomenon.

3, temperature tester thermocouple in paste work-piece must remember that fit closely products, can't let thermocouple of solder joint in shaking inside, especially the thermocouple solder joints when with metal touch, easy to produce, transient voltages measured temperature curve caused by a high temperature rises suddenly, this will cause analysis software Y coordinates followed become very high, so the whole curve will look very small.

4, thermocouple temperature tester correct wiring method is: the red line to the cathode, the yellow line to the anode, pick up the two lines must be up to the male plug triangle, prevent the exposed part of the short circuit.