1. USB_DAQ (PGA309EVM) for Real Sensor Application Iven Xu May. 20 th, 2013 iven-xu@ti.com 1

2. Agenda 1. Digital Sensor Emulator (PGA309 onboard sensor emulator) –The outputs of onboard sensor emulator are controlled by sensor emulator file – like “nonlin2.csv” file (based on the characteristic of real sensor) 2. Sensor Emulator Board (External sensor emulator board) –The outputs of external sensor emulator board are controlled by a special spreadsheet – like “Generate_Sim_Values.xls”/SBOC065A (also based on the characteristic of real sensor) 3. Real sensor application –Need oven and … Reference: –Sensor-Emulator-EVM system Reference Guide (SBOA102A) –PGA309 Quick Start (SBOA103C) –PGA309-Programmable Sensor Signal Conditioner –PGA309EVM-USB User’s Guide (SBOA084A) –SBOC065A (http://www.ti.com/litv/zip/sboc065a)http://www.ti.com/litv/zip/sboc065a 2

3. 3 1)Digital Sensor Emulator 1.1) 4-wire Vout mode 1.2) 3-wire Vout mode 1.3) Iout mode (must be used with 4-wire)

4. 1.1) 4-wire Vout mode ( Use PGA309EVM ): PGA309 EVM Configuration 4 Vex (provide for bridge sensor) Temp Sensor output Sensor output This is for 4-wire voltage output mode hardware configuration; We need to create a “.csv” file – like nonlin2.csv. That file is based on the characteristic of real sensor - such as offset, mid/full scale, drift; and temperature sensor – Temp Sensor Vout vs. temp.

5. 1.1) 4-wire Vout mode ( Use PGA309EVM ): USB_DAQ Board Default Configuration 5

6. 1.1) 4-wire Vout mode: software configuration Windows 7 Attention Default GUI Interface 6

7. 1.1) 4-wire Vout mode: create model file 7

8. 1.1) 4-wire Vout mode: Enter Model Name/…. 8

9. 1.1) 4-wire Vout mode: How to create the new nonlin2.csv file Use PGA309 software to create the onboard sensor emulator file (.csv). For more detailed info, pls read the PGA309EVM-USB User’s Guide.pdf (SBOU084A) P47-P51. 9

10. 1.1) 4-wire Vout mode: How to create the new nonlin2.csv file Use PGA309 software to create the onboard sensor emulator file (.csv). For more detailed info, pls read the PGA309EVM-USB User’s Guide.pdf (SBOU084A) P47-P51. 10

11. 11 1.1) 4-wire Vout mode: How to create the new nonlin2.csv file Use PGA309 software to create the onboard sensor emulator file (.csv). For more detailed info, pls read the PGA309EVM-USB User’s Guide.pdf (SBOU084A) P47-P51.

12. 12 1.1) 4-wire Vout mode: How to create the new nonlin2.csv file Use PGA309 software to create the onboard sensor emulator file (.csv). For more detailed info, pls read the PGA309EVM-USB User’s Guide.pdf (SBOU084A) P47-P51.

13. 13 1.1) 4-wire Vout mode: How to create the new nonlin2.csv file Use PGA309 software to create the onboard sensor emulator file (.csv). For more detailed info, pls read the PGA309EVM-USB User’s Guide.pdf (SBOU084A) P47-P51.

14. 1.1) 4-wire Vout mode: How to create the Pre Cal file 14

15. 1.1) 4-wire Vout mode : How to create the Pre Cal file 15

16. 1.1) 4-wire Vout mode: How to create the Pre Cal file 16

17. 1.1) 4-wire Vout mode: How to create the Pre Cal file 17

18. 1.1) 4-wire Vout mode: How to create the Pre Cal file 18

19. 1.1) 4-wire Vout mode: Re-select the model file before the calibration 19

20. 1.1) 4-wire Vout mode: 20

21. 1.1) 4-wire Vout mode: calibration 21

22. 1.2) 3-wire voltage output mode: Only different is “JMP7,JMP8” in hardware configuration. 22

23. 1.3) Iout mode: 23 USB DAQ Configuration Make sure the “GND” of 24V power supply is float. Do not connect with GND of +-15V power supply.

24. 1.3) Iout mode ( Use PGA309EVM ): » PGA309 EVM Configuration * When we want to use current output mode of XTR117: * we should make sure the configuration of PGA309 is in 4-wire voltage output mode; * Because in 3-wire voltage output mode of PGA309, we should turn on/off the Vs of PGA309. But in 3-wire mode, the one-wire and Vout is connect in one junction, so we cannot use one-wire to control the Vs (turn on/off). * conclusion: we should use 4-wire voltage output for current output. 24 Vex (provide for bridge sensor) Temp Sensor output Sensor output

25. 1.3) Iout mode: 25 Use the csv file we created in the last step, So we can select that file for here.

26. 1.3) Iout mode: 26

27. 1.3) Iout mode: calibration 27

28. 28 2) External Sensor Emulator Board 2.1) 4-wire Vout mode 2.2) 3-wire Vout mode 2.3) Iout mode (must be used with 4-wire)

29. 2.1) 4-wire Vout mode: Hardware and pre-cal file are the same as 4-wire Vout mode in last step; In this situation, we never use csv file. So do not select sensor emulator file, but we adjust the outputs of external sensor emulator board. The outputs of sensor emulator board is based on the special spreadsheet: –http://www.ti.com/litv/zip/sboc065ahttp://www.ti.com/litv/zip/sboc065a –In this spreadsheet, we need to set the offset/span/drift/sensor range…. It will generate the different output. –Also you can reference Sensor Emulator Board User’s Guide (SBOA102A) We need to adjust the output of sensor emulator board following the below flow: 29

30. 2.1) 4-wire Vout mode: calibration 30

31. 2.1) 4-wire Vout mode: calibration Adjust the pressure and temperature following the prompt window. 31

32. 2.1) 4-wire Vout mode: calibration (continue) Adjust the pressure and temperature following the prompt window. 32

33. 2.2) 3-wire Vout mode: Hardware and pre-cal file are the same as 3-wire Vout mode in last step; In this situation, we never use csv file. So do not select sensor emulator file, but we adjust the outputs of external sensor emulator board. The outputs of sensor emulator board is based on the special spreadsheet: –http://www.ti.com/litv/zip/sboc065ahttp://www.ti.com/litv/zip/sboc065a –In this spreadsheet, we need to set the offset/span/drift/sensor range…. It will generate the different output. –Also you can reference Sensor Emulator Board User’s Guide (SBOA102A) We need to adjust the output of sensor emulator board following the below flow: it is the same as 4-wire Vout mod. 33

34. 2.3) Iout mode: Hardware and pre-cal file are the same as Iout mode in last step; In this situation, we never use csv file. So do not select sensor emulator file, but we adjust the outputs of external sensor emulator board. The outputs of sensor emulator board is based on the special spreadsheet: –http://www.ti.com/litv/zip/sboc065ahttp://www.ti.com/litv/zip/sboc065a –In this spreadsheet, we need to set the offset/span/drift/sensor range…. It will generate the different output. –Also you can reference Sensor Emulator Board User’s Guide (SBOA102A) We need to adjust the output of sensor emulator board following the below flow: it is the same as 4-wire Vout mod. 34

35. 35 3) Real Sensor Application 3.1) 4-wire Vout mode 3.2) 3-wire Vout mode 3.3) Iout mode (must be used with 4-wire)

36. 3.1) Take 4-wire for example Hardware and pre-cal file is the same as in Digital sensor emulator and External sensor emulator board. Never use the sensor emulator file. Put the real sensor in the oven, adjust the temperature and pressure following with the prompt window, like the below operation: It will need much more time to finish the calibartion. 36

37. 3.1) Take 4-wire for example 37

38. 3.1) Take 4-wire for example Adjust the pressure and temperature following the prompt window. 38

39. 3.1) Take 4-wire for example Adjust the pressure and temperature following the prompt window. 39

40. Thanks! 40