Packaging Details
- Unit Type: lot (5 pieces/lot)
- Package Weight: 0.7kg (1.54lb.)
- Package Size: 25cm x 14cm x 7cm (9.84in x 5.51in x 2.76in)
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Thermocouple Description:
Thermocouples are very simple and durable temperature sensors. Thermocouple come with different pairings of materials allowing for a very wide range of applications. The different compositions are standardized into thermocouple types. The different types are given letter names which are standardized across the industry.
Thermocouples are manufactured in many different configurations for multitude of applications. Diameters, lengths, sheath material, lead lengths and sensor material are just a few of the variables that go into determining the style of thermocouple when manufactured. The main determining factors of what type thermocouple needs to be used in a application is temperature, environment, response time and accuracy. The junction of the thermocouple can be grounded, ungrounded or exposed.
Thermocouples are easy to use, Thermocouples are the most popular temperature sensors. They are cheap, interchangeable, have standard connectors and can measure a wide range of temperatures.
PT100 Sensor Technical information
As for the thermocouple, we split the word: Pt and 100. Pt is the chemical symbol for Platinum, 100 is the resistance in Ohm of the Pt100 at 0 °C. The resistance changes (fearly linear) with temperature are: 0.385 Ohm/°C for European and 0.392 Ohm/°C for American elements. So, by measuring the resistance we can calculate the temperature. Never use a European Pt100 with an American instrument unless you know that it is set for the right conversion factor (usually called \'alpha\'). In english a Pt100 is also called a RTD element, meaning Resistance Temperature Detector.
An RTD or Pt100 sensor is connected with two, three or four wires to the measuring device. we learned that we are in fact measuring resistance to determine the temperature. Now when measuring the resistance of the sensing element, we also measure the resistance of the leads and cables used. This gives an error! To compensate for this, the three wire type (bridge) is used, giving enough accuracy in most industrial applications. Even better accuracy is possible with a four wire Pt100 (laboratory applications). Our Pt100 panel mounted indicators have an offset compensation when using two wire sensors.
Thermocouple Photos:
Pt100 sensor
probe dia.3mm,
length 8mm,
Wire length 1300mm,
For Ultimaker 3d printer
If you want high accuracy, for example better then 0.5°C between 0 and 100°C, go for the Pt100.
What is the difference between 2, 3 and 4 wire Pt100 sensors?
An RTD or Pt100 sensor is connected with two, three or four wires to the measuring device. From What is a Pt100? we learned that we are in fact measuring resistance to determine the temperature. Now when measuring the resistance of the sensing element, we also measure the resistance of the leads and cables used. This gives an error! To compensate for this, the three wire type (bridge) is used, giving enough accuracy in most industrial applications. Even better accuracy is possible with a four wire Pt100 (laboratory applications). Our Pt100 panel mounted indicators have an offset compensation when using two wire sensors.
Thermocouple Packing:
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