SPLatco Knowledge Base

Both the MMi202 controller and the SX10507 should be wired up to the DC power supply. Any DC power supply in the range of 12

Connect the two boards via the 2 pin Xwire cable.

The pH probe should be plugged into the BNC connector.

If you have a PT1000 RTD sensor, this can be attached to the terminal block terminals marked PT1000. Likewise, the thermistor if present can be connected to the “Thermistor” terminals. Note a temperature sensor (PT1000 or thermistor) is NOT required to run the demo program as the program allows the temperature to be manually entered on the fly to calibrate and temperature compensate the pH readings. If a thermistor is used, the program will have to be modified to suit its parameters.

The RS485 connection option is beyond the scope of this document.

Power the system up and connect the MMi202 to your PC. Down load the PHDEMO.spt file to the board and run it.