Gravity: Analog Electrical Conductivity Sensor(K=10)

FAQ

• The sensor does not read or the reading is inaccurate. What could be the reason?

  1. Please check your sensor version and select the correct Wiki (the library file code of K=1 and K=10 version sensors are different);
  2. Please clear the epprom of the board and re-upload the Wiki sample code and calibrate;
  3. Please use a hot hair dryer to heat the adapter board and re-measure to exclude the influence of moisture on the sensor.
  4. If the above method still cannot be used normally, please contact our email address:[email protected]

• Can the Analog Electrical Conductivity Sensor K=10 Measure for a Long Time?

  The electrode matched with this sensor is a laboratory-grade electrode, please do not put it in the liquid for a long time to measure, otherwise the service life of the electrode will be shortened.

• During the first calibration, the calibration always fails, or the sensor always reads NAN the first time it is used. What could be the reason?

  When calibrating, the relevant parameters are stored in the specified position in EEPROM. If other data previously saved in the same position in EEPROM, there may be a conflict, resulting in an inability to calibrate properly. Use the following code to erase the contents in the specified position in EEPROM. Run it once, then upload the sample code again to restart the calibration. Different from DFR0300‘s program.

  ————————————————————————————————————————————————————————————————

  #include <EEPROM.h>

  #define KVALUEADDR 0x0F

  void setup(){

  for(byte i = 0;i< 8; i++ ){

  EEPROM.write(KVALUEADDR+i, 0xFF);

  }

  }

  void loop(){

  }
  ————————————————————————————————————————————————————————————————

• During the calibration, is it necessary to complete two points calibration? Can I complete only one-point calibration for the Analog Electrical Conductivity Sensor K=10?

  The two points calibration must be completed because the two points respectively correspond to standard buffer solution 1413us/cm and 12.88ms/cm. The two points calibration ensure the accuracy of the entire measurement range. Therefore, two points calibration must be completed.

• How to achieve automatic temperature compensation for the Analog Electrical Conductivity Sensor K=10?

  The temperature compensation algorithm has been integrated in theDFRobot_EC library.You only need to transfer the voltage and temperature tofloat readEC (float voltage, float temperature)at the same time, to obtain the electrical conductivity with temperature compensation.

Explore More Related Questions >