• New Version PH Simulation Sensor PH Meter Shield Adapter For Arduino UNO R3 Development Starter Learning Kit
  • New Version PH Simulation Sensor PH Meter Shield Adapter For Arduino UNO R3 Development Starter Learning Kit
  • New Version PH Simulation Sensor PH Meter Shield Adapter For Arduino UNO R3 Development Starter Learning Kit
  • New Version PH Simulation Sensor PH Meter Shield Adapter For Arduino UNO R3 Development Starter Learning Kit

New Version PH Simulation Sensor PH Meter Shield Adapter For Arduino UNO R3 Development Starter Learning Kit

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Also in for a low cost, convenient to useopen source pH meter and worry? We launched a specially designed for the Arduinos controller simulation PH meter, has the characteristics of attachmentis simple, convenient and practical. The onboard power light, BNC interface andPH2.0 interface. Use, will received pH sensor onboard BNC interface, theonboard PH2.0 interface connected to the Arduinos controller simulation, throughthe program control, you can very convenient measuring the pH of the solution.
   PH sensor electrode using glass electrode and reference electrode to ge the rmolded case not filling type composite electrode, PH meter measuring is used to measure the ion activity in aqueous solution, the PHvalue.
   The sensor with thick black boxes, enclosed black high quality rubber cushion,full protection components, not only beautiful and generous. Attached to thecore components - PH electrode manual for proper use convenient user'ssecondary development.
  • Module Power : 5.00V
  • Module Size : 43mmx32mm
  • Measuring Range :0-14PH
  • Measuring Temperature :0-60 deg
  • Accuracy: ± 0.1pH (25 )
  • Response Time : ≤ 1min
  • pH Sensor with BNC Connector
  • pH2.0 Interface ( 3 foot patch )
  • Gain Adjustment Potentiometer
  • Power Indicator LED
Shipping List
  • pH sensor (BNC connector ): 1 pcs (option)
  • pH sensor circuit board: 1 pcs (option)
  • cable: 1 pcs
  • Please use an external switching power supply, make as far as possible close to+ 5.00 V voltage, voltage more exact, the higher the accuracy.
  • Electrodes in each successive need to use the standard buffer solution beforeuse for correction, for a more correct result, the environment temperature at25 deg orso, to the best known PH value to be reliable, and its PH value very close tothe measured value of time. If you measure the samples for the acid, please usePH4.00 buffer solution to correction of electrode, if you measure the sample isalkaline, please use the PH9.18 buffer solution on the electrode. Segmentscalibration, just to get a better precision.
  • PH electrode per a pH measurement of different solution, you need to use cleanwater, it is recommended to use di water to clean.
Use step
  • (1) connect the according to the graphic way, namely: the pHelectrode is connected to the pH meter BNC interface circuit board, and then use cable to connect the pH meter circuit board to the Arduinos mastercontroller simulation of 0. For Arduinos master controller power supply, you cansee the pH meter circuit board of the blue light is brighter.
  • (2) for the Arduinos master controller burning sample code.
  • (3) the pH electrode inserted into the pH value of 7.00 of the standardsolution, or directly short BNC interface of two input, open the Arduinos IDEserial port monitor, you can see the print out of pH value, the error does notexceed 0.3. Record at this point the value of the printed and then comparedwith 7.00, the difference between Offset changes to the program in place. Toprint out the pH value of 6.88, for example, the difference of 0.12, is in thesample program # define Offset to 0.00 # define Offset of 0.12.
  • (4) insert the pH electrode in the pH value of 4.00 calibration fluid, wait aminute later, gain adjustment potentiometer, make as far as possible to printout the pH of the stable at about 4.00. Meanwhile, acid calibration has beencompleted, you can test the pH of the acidic solution.
  • Note: other measurement solution, must wash the electrodes.
  • (5) depend on the linear characteristic of pH electrode itself, through theabove calibration, can directly measure the pH of the alkaline solution, but ifyou want to get a better precision, recommends calibration. Alkaline period ofcalibration using standard solution pH value of 9.18, is also to adjust gainpotentiometer, stable at about 9.18. After calibration, right now you canmeasure the pH of the alkaline solution.
The sample code
Download the sample code, open the Arduinos IDE serial port monitor, you can seethe result.


# This sample codes is for testing the pH meter V1.0.
 # Editor : YouYou
 # Date   : 2013.10.21
 # Ver    : 0.1
 # Product: pH meter
 # SKU    : SEN0161
#define SensorPin 0            //pH meter Analog output to Arduinos Analog Input 0
#define Offset 0.00            //deviation compensate
unsigned long int avgValue;     //Store the average value of the sensor feedback
void setup()
  Serial.println("Ready");    //Test the serial monitor
void loop()
  int buf[10];                //buffer for read analog
  for(int i=0;i<10;i++)       //Get 10 sample value from the sensor for smooth the value
  for(int i=0;i<9;i++)        //sort the analog from small to large
    for(int j=i+1;j<10;j++)
        int temp=buf[i];
  for(int i=2;i<8;i++)                      //take the average value of 6 center sample
  float phValue=(float)avgValue*5.0/1024/6; //convert the analog into millivolt
  phValue=3.5*phValue+Offset;                      //convert the millivolt into pH value
  Serial.print("    pH:");  
  Serial.println(" ");
  digitalWrite(13, HIGH);       
  digitalWrite(13, LOW); 
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