Analog TDS Sensor Water Conductivity Sensor Tester Liquid Detection Water Quality Monitoring

Analog TDS Sensor Water Conductivity Sensor Tester Liquid Detection Water Quality Monitoring

Name: Analog TDS Sensor Water Conductivity Sensor Tester Liquid Detection Water Quality Monitoring
Brand: Elecbee
SKU: EB0043793
Price: 26.99 USD
Availability: InStock
Rating: 139 / 29 (29 reviews)

$26.99

SKU: EB0043793

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Analog TDS Sensor Water Conductivity Sensor Tester Liquid Detection Water Quality Monitoring

EB0043793

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Description

Note:

TDS probes cannot be used in water above 55 °C.

The TDS probe should not be placed too close to the edge of the container, as it will affect the display.

The head and lead of the TDS probe are waterproof and can be immersed in water, but the connection interface and the signal adapter board are not waterproof. Please pay attention to use.

1 x TDS signal adapter board

1 x Waterproof TDS probe

1 x Analog sensor line

source code:

#define TdsSensorPin A1

#define kValue 1.8 //kValue = value of calibrator TDS / measurement to get TDS

#define VREF 5.0 // analog reference voltage(Volt) of the ADC

#define SCOUNT 30 // sum of sample point

Int analogBuffer[SCOUNT]; // store the analog value in the array, read from ADC

Int analogBufferTemp[SCOUNT];

Int analogBufferIndex = 0, copyIndex = 0;

Float averageVoltage = 0, tdsValue = 0, temperature = 25;

Void setup()

{

Serial.begin(115200);

pinMode(TdsSensorPin, INPUT);

}

Void loop()

{

Static unsigned long analogSampleTimepoint = millis();

If(millis()-analogSampleTimepoint > 40U) //every 40 milliseconds,read the analog value from the ADC

{

analogSampleTimepoint = millis();

analogBuffer[analogBufferIndex] = analogRead(TdsSensorPin); //read the analog value and store into the buffer

analogBufferIndex++;

If(analogBufferIndex == SCOUNT)

analogBufferIndex = 0;

}

Static unsigned long printTimepoint = millis();

If(millis()-printTimepoint > 800U)

{

printTimepoint = millis();

For(copyIndex=0;copyIndex;copyindex++)

analogBufferTemp[copyIndex]= analogBuffer[copyIndex];

averageVoltage = getMedianNum(analogBufferTemp,SCOUNT) * (float)VREF / 1024.0; // read the analog value more stable by the median filtering algorithm, and convert to voltage value

Float compensationCoefficient=1.0+0.02*(temperature-25.0); //temperature compensation formula: fFinalResult(25^C) = fFinalResult(current)/(1.0+0.02*(fTP-25.0));

Float compensationVolatge=averageVoltage/compensationCoefficient; //temperature compensation

tdsValue=(133.42*compensationVolatge*compensationVolatge*compensationVolatge - 255.86*compensationVolatge*compensationVolatge + 857.39*compensationVolatge)*0.5*kValue; //convert voltage value to tds value

//Serial.print("voltage:");

//Serial.print(averageVoltage,2);

//Serial.print("V ");

Serial.print("TDS Value:");

Serial.print(tdsValue,0);

Serial.println("ppm");

}

Int getMedianNum(int bArray[], int iFilterLen)

{

Int bTab[iFilterLen];

For (byte i = 0; i;>

bTab[i] = bArray[i];

Int i, j, bTemp;

For (j = 0; j < iFilterLen - 1; j++)

{

For (i = 0; i < iFilterLen - j - 1; i++)

{

If (bTab[i] > bTab[i + 1])

{

bTemp = bTab[i];

bTab[i] = bTab[i + 1];

bTab[i + 1] = bTemp;

}

If ((iFilterLen & 1) > 0)

bTemp = bTab[(iFilterLen - 1) / 2];

Else

bTemp = (bTab[iFilterLen / 2] + bTab[iFilterLen / 2 - 1]) / 2;

Return bTemp;

}

Analog-TDS-Sensor-Water-Conductivity-Sensor-Tester-Liquid-Detection-Water-Quality-Monitoring-1601493

Reviews (29)
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Q & A

: Where is the origin of Elecbee products? Are they certificated?

2023-03-03

Answer:

Elecbee has long-term cooperation agreements with the OEM factories in China. So that we are able to reduce the intermediate channel cost, and help you save money. Our products are all made strictly according to the relative global standard, to ensure the products have good compatibility and excellent quality.

2023-03-03

: What forms of payment do you accept?

2023-03-03

Answer:

Our main payment methods include Paypal, Credit Cards, Debit Cards, Bank Transfer, and more to discover. Please choose the payment methods in your favor.

2023-03-03

: When will you arrange shipment?

2023-03-03

Answer:

After confirming receipt of your payment. We will arrange the delivery as soon as possible and upload the courier number to the website for you to track.

2023-03-03

: How to exchange or return?

2023-03-03

Answer:

1. You can apply to return within 30 days after receipt of the goods. Please make sure the outside package is intact, and the product is in its original condition. We will arrange your refund according to the relevant provisions once the package is received.

2. Return process: You Apply for a Return - Approve the Return - Arrange a Return - Receive the Products and make Inspection - We arrange a Refund;

3. We will bear the freight charges for returns caused by us, for instance, the quality problem. As to returns caused by the buyer, the buyer should be responsible for the shipping fee.

2023-03-03