How to determine the grouping of thermal resistors?
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In on-site installation, there are two-in-one thermistors with six wires: two red and four white. Let’s assume they are labeled as Red1, Red2, White1, White2, White3, and White4. How can we determine which three wires belong to one thermistor? PS: There’s another question: how effective are integrated thermocouples? Here, we usually use thermocouples connected to the isolation barrier for temperature transduction.
It can be tested using the resistance setting on a multimeter. The resistance of Pt100 at 0 degrees is 100 ohms; the red lead of the multimeter should be connected to terminal 1, while the black lead should be connected to the white wires. The two white wires with a resistance of over 100 ohms form one group with the red lead used for testing.
Test using the resistance function of a multimeter: connect the red lead of the multimeter to terminal Red 1, and connect the black lead to the white wire; determine the resistance value based on the temperature
How to use a two-in-one thermal resistor? Do I need to connect it to a meter?
First, use a multimeter to identify which two of the four white wires are shorted together, and then find the red wire corresponding to them that has a resistance value
What’s said upstairs is correct; a multimeter is the simplest method
Measured with a multimeter – the integrated thermoresistors perform well. Most of us here use integrated types, and we employ E+H temperature sensors
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