K Type Thermocouple

Why K Type Thermocouple is the favorite among other thermocouples.

Of all the thermocouples in use today, k type thermocouple is the most popular. This is due in effect to the wide range of temperature sensing and measuring application it can be used for.

The thermoelement materials used in the composition of thermocouples often determine the range of temperature that needs to be measured.

k type thermocouple

A coupling of Chromel and Alumel wires, has a range of -270 °C to 1370 °C and an output of -6.4 to 54.9 mV over maximum temperature range. This is one of the major advantages of thermocouple type k over other thermocouples in general or other temperature transducers such as the thermistor or the resistance temperature detector (RTD).

Its capability to function in rugged environmental conditions and in various atmospheres makes it a preference over other temperature transduction devices.

Unsheated type k thermocouples can be utilised in Biophysics, scientific instrumentation, cryogenics, gas chromatography as well as in many areas with rapid changing temperatures.

K Type Thermocouple

Following are some type K thermocouple related devices that are available in the market.

1) Digital K-type Thermocouple Thermometer DM6801A+

Digital K-type Thermocouple Thermometer DM6801A+
  • Temperature Range: -58 to 1999°F (-50 to 1300°C), Resolution 0.1 °F or °C
  • One K-type Thermocouple Input, Measures in °F Fahrenheit, °C Celsius
  • Large LCD Display, Data Hold and Automatic Power Off
  • K-type thermocouple wire probe with fiberglass insulation included
  • Battery: standard 9V, included

2) Cole-Parmer Workhorse Thermo-couple Thermometer Type-K

Cole-Parmer Workhorse Thermocouple Thermometer Type-K
  • Easy to use meter at an economical price that is perfect for everyday use
  • Temp range: -58 to 2372°F (-50 to 1300°C)
  • Type: Thermo-couple Type K
  • Resolution: 0.1° between -50.0 to 200°C and 1° otherwise
  • Accuracy: ±1°C +.75 between 500 to 750°C, ±1°C + 2% between 750 to 1000 °C, ±3°C + 4% between 1000 t

3) Thermocouple,Wire,TYPE-K,24-GAUGE,Glass Braid Insulation,100-ft Spool

Thermocouple,Wire,TYPE-K,24-GAUGE,Glass Braid Insulation,100-ft Spool
  • 24-gauge wire
  • Make your own thermocouple probes or extension cables
  • High-temperature insulation for use up to 2600F (1427C)
  • Length (ft): 100
  • Type: K
  • Min temperature (° F): -100
  • Min temperature (° C): -73
  • Max temperature (° F): 900
  • Max temperature (° C): 482

Related Articles

The Thermocouple remains to be the most extensively used method in temperature measurement! It is made of two different metals welded together at one end. It generates electromotive force (emf) as a result of the difference in temperature between its cold and hot points of connection. In essence, that is the thermocouple theory behind it. It is also referred to as thermoelectric effect or Seebeck effect. It was first discovered by Thomas Johann Seebeck in 1821.

Thermistor a tiny device with enormous power!

A thermistor is a resistor, a class in its own.

Its main characteristic is that its resistance changes when subjected to varying degrees of temperature. It is typically made from ceramic or polymer. Whereas resistance temperature detectors (RTD) are constructed from pure metal membranes. Other noted differences between these two include large variations in resistance with respect to temperature changes in the case of the former. Small resistance increments with respect to temperature changes in the case of the latter.

Electronic temperature controllers are important for many reasons in adjusting, checking, limiting or regulating temperature. This is especially so when you're dealing with processes which are impacted by the rise or fall of temperature during operation. There are numerous electronic and digital temperature controllers available out there but they almost all follow the same principle of operation.

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