Can a thermocouple be connected to two display instruments in parallel at the same time?
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I would like to ask everyone if the thermocouple can be connected to two display instruments in parallel at the same time? If not, how to achieve it?
It shouldn't be possible. It can be done with a converter with 1 input and 2 outputs.
Use a signal isolator with one input and two outputs to convert it into two standard signal outputs.
The early display instruments were moving coil display instruments, because the thermocouple outputs a mV signal, and the internal resistance of the moving coil instrument is very large, which does not affect the measurement. Nowadays, the signal of the thermocouple generally enters the card. The input internal resistance of the card is very small, so the two channels cannot be connected in parallel. The only way is to use the signal isolator with one input and two outputs mentioned above to convert it into two standard signal outputs.
It is also possible to use a temperature transmitter with one input and two outputs, which can be converted into two standard signal outputs.
No, you can use a 2-core thermocouple or a 1-in/2-out signal splitter.
Choose dual thermocouples or signal distributor
No, you should use a 1-in and 2-out signal splitter to convert it into two standard signal outputs.
It cannot be measured directly from the thermocouple, but it can be measured from the temperature change (it has 2 outputs)
You can come up with a more exaggerated trick. After the thermocouple changes its output due to over-temperature, connect two display meters in series (the two internal resistances must be very small, otherwise the accuracy will be seriously affected)……