Before you buy your K type thermocouple should consider

As mentioned earlier, thermocouple calibration has wide range. In the calibration, K type is one of the most popular choice for high temperature measurement. But does this mean that it is the best choice for you? Today we are going to look at before buying your K type thermocouple what you should consider.

K type thermocouple wire temperature range of

this should be the first step in when you buy temperature equipment. K type thermocouple is suitable for up to 1350 & deg; The temperature of the C. Though, you should always keep in mind that long time measuring higher temperatures will lead to the precision of K type drift.

if you need a 100 & deg; C under accurate temperature measurement, the RTD will be more appropriate. RTD PT100 is the preferred temperature measuring device for domestic beer circles. Suitable condition

K type thermocouple in the oxidizing atmosphere as well. However, if the main reduction atmosphere ( For example, with a small amount of oxygen) of hydrogen Contact with wire, nickel chromium alloy of chromium oxide. This reduces the emf output and low thermocouple readings. This phenomenon is known as the green, due to the influence of the color of the alloy. Although not always unique green, nichrome wire will develop mottled silver skin, become magnetic. Check the problem of a simple method is to look at the two wires is magnetic. （ Usually, the nickel chrome is magnetic. ）

K type thermocouple sulphur was vulnerable to attack, so should not be used in sulfur atmosphere.

the known type K thermocouple type K drift after exposure to high temperatures ( + 500℃） Will drift for a long time. This kind of drift can be as high as 3 & deg; C, but at a higher temperature ( 1000° C) , which can add up to 5 & deg; C output. If in the long time accuracy is an important choice available.

although, K type is the most commonly used thermocouple, and relatively cheap. It is important to look at your application, and find it is the perfect solution of your project.

our sales team has more than 20 years of experience, to help customers with their temperature measurement solutions, and will be happy to help you find the perfect thermocouple for your application.