BRD-MMP-TC-4 Support & Frequently Asked Questions

[1] How can I use 4, 8, 16 or more thermocouples with THERMOCOUPLE-4 peripheral board ?

[2] Can I use THERMOCOUPLE-4 Board as a standalone thermocouple amplifier ?

[3] What is the difference between THERMOCOUPLE-4 and THERMOCOUPLE-4A ?

[1] How can I use 4, 8, 16 or more thermocouples with THERMOCOUPLE-4 peripheral board ?

Each Thermocouple-4 peripheral board provides 4 inputs. It means you can connect 4 thermocouples
to the same peripheral thermocouple board.

2 Thermocouple-4 boards can be stacked. It means you can have a total of 8 thermocouples.
The thermocouple stack can be installed on top of DAQ-2543 board. The DAQ-2543 board can be installed on top of the microcontroller ( MINI-MAX/51, MINI-MAX/ARM, etc. ) board. This setup will provide 8 thermocouples for your application.

If you need 16 thermocouple inputs ( 4 thermocouple boards) we offer a different approach:

DAQ-128 ( 12-bit ADC, 8 analog inputs) peripheral board operates at I2C bus. Each board has a 3-bit address selector.
Thus you can replace a DAQ-2543 with a DAQ-128 in the previous setup. This will give support 8 thermocouple inputs.
To provide 8 extra inputs we can use the 2nd DAQ-128 board. 2 extra Thermocouple-4 boards will be installed on top of the 2nd DAQ-128 board. The 2nd setup can be connected to the 1st setup (Mini-MAX/ARM & DAQ-128 & 2 TC's) setup using a ribbon cable.

Theoretically you can build a setup with 64 thermocouple inputs. Peripheral parts lists of multiple thermocouple configurations:

4 or less thermocouples
5 to 8 thermocouples
More than 8 thermocouples
DAQ-2543 Board
DAQ-2543 Board
DAQ-128 Board
DAQ-128 Board
...
...

[2] Can I use THERMOCOUPLE-4 Board as a standalone thermocouple amplifier ?

Yes, this is possible. You can use THERMOCOUPLE-4 board in almost any application or system to amplify and condition the raw voltage output from thermocouples. THERMOCOUPLE-4 provides amplification, filtering and cold-junction compensation for E, J, K, R, S and T type thermocouples. Conditioned output voltages for 4 thermocouple channels are available on a 26-pin dual-row pin header.

Calculating Temperature from Output Voltage



[3] What is the difference between THERMOCOUPLE-4 and THERMOCOUPLE-4A ?

THERMOCOUPLE-4 and THERMOCOUPLE-4A are the same except THERMOCOUPLE-4A hascold junction compensation with less initial uncalibrated temperature error.Uncalibrated Cold junction compensation error is 0.5 degrees Celsius for THERMOCOUPLE-4Aand 2 degrees Celsius for THERMOCOUPLE-4.