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Topic: vernier conductivity probe (Read 1 time) previous topic - next topic


good day! how can I interface the vernier conductivity probe (manual here: http://www2.vernier.com/booklets/con-bta.pdf) to an arduino?

i mean, how can i interpret the voltage generated by the conductivity probe and convert it to conductivity?
specifically, how can I convert the VOLTAGE to CONDUCTIVITY with respect to the manual? I'm using the 0 - 200 uS range.

program draft:
int inputPin = 0;
float conductivity = 0;

void setup()

void loop()
  int samples = 20;
  int aRead = 0; 

  for (int i = 0; i < samples ; i++)
    aRead += analogRead(inputPin);
  float voltage = 5.0 * aRead/ (1023.0 * samples);
// how to convert VOLTAGE to CONDUCTIVITY with respect to the manual? I'm using the 0 - 200 uS range.

please help. THANK YOU!


The document you linked to does not contain the information about how the conductivity is expressed in the voltage. I would assume that it's range to range (0-5V = 0-200uS) but why don't you just try?


That document says nothing about the (proprietry) interface - some better documentation or reverse engineering is required.  Do you
have any of the devices it is normally connected to?
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]


Very bad interface to find parts in Americas. Maybe on in Europe especially in UK. There is a DIN-5 to BTA-A adapter you want to buy so you can use DIN-5 hardware, so much easier to get. Also get the BTA-A breadboard kit if you want.
Serial LCD keypad panel,phi_prompt user interface library,SDI-12 USB Adapter

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