Understanding the Key Elements in a ph sensor Datasheet

A pH sensor datasheet is a critical document that provides detailed information about the specifications, performance, and operating conditions of a pH sensor. Understanding the key elements in a pH sensor datasheet is essential for users to ensure the sensor’s optimal performance and longevity.

A pH sensor, also known as a pH probe or electrode, is a device used to measure the acidity or alkalinity of a solution. It is widely used in various industries such as food and beverage, pharmaceutical, environmental monitoring, and water treatment plants. The pH sensor datasheet provides all the necessary information about the sensor, including its design, operation, and maintenance.

One of the first things to look for in a pH sensor datasheet is the sensor’s specifications. This section provides information about the sensor’s physical characteristics, such as its size, weight, and material composition. It also includes details about the sensor’s measurement range, accuracy, and resolution. The measurement range indicates the minimum and maximum pH levels that the sensor can accurately measure. The accuracy refers to how close the sensor’s measurements are to the actual pH level, while the resolution indicates the smallest change in pH level that the sensor can detect.

Another important section in the pH sensor datasheet is the operating conditions. This section provides information about the environmental conditions under which the sensor can operate effectively. It includes details about the sensor’s operating temperature and pressure ranges, as well as its resistance to various environmental factors such as humidity, dust, and chemical exposure. Understanding these operating conditions is crucial for users to ensure that the sensor is used in an environment that does not exceed its capabilities, which could potentially damage the sensor or affect its accuracy.

The pH sensor datasheet also provides information about the sensor’s performance. This includes details about the sensor’s response time, which is the time it takes for the sensor to respond to a change in pH level. It also includes information about the sensor’s stability, which refers to the sensor’s ability to maintain consistent and accurate measurements over time. Understanding the sensor’s performance can help users determine if the sensor is suitable for their specific application.

Measuring Method	N,N-Diethyl-1,4-phenylenediamine (DPD) spectrophotometry
Model	CLA-7122	CLA-7222	CLA-7123	CLA-7223
Inlet water channel	Single channel	Dual channel	Single channel	Dual channel
Measurement range	Total Chlorine : (0.0 ～ 2.0)mg/L ,calculated as Cl2 ;		Total Chlorine : (0.5 ～10.0)mg/L ,calculated as Cl2 ;
	pH：（0-14）；temperature：（0-100）℃
Accuracy	Free chlorine: ±10% or 0.05mg/L (whichever is greater), calculated as Cl2; Total chlorine: ±10% or 0.05mg/L (whichever is greater), calculated as Cl2		Free chlorine: ±10% or 0.25mg/L (whichever is greater), calculated as Cl2; Total chlorine: ±10% or 0.25mg/L (whichever is greater), calculated as Cl2
	pH:±0.1pH；Temp.:±0.5℃
Measurement cycle	Free Chlorine≤2.5min
Sampling interval	The interval (1～999) min can be set to any value
Maintenance cycle	Recommended once a month (see maintenance chapter)
Environmental	Ventilated and dry room without strong vibration; Suggested room temperature: (15 ～ 28)℃; relative humidity: ≤85% (no condensation).
requirements
Sample water flow	（200-400） mL/min
inlet water pressure	（0.1-0.3） bar
Inlet water temperature range	（0-40）℃
Power supply	AC (100-240)V； 50/60Hz
Consumption	120W
Power connection	3-core power cord with plug is connected to the mains socket with ground wire
Data output	RS232/RS485/（4～20）mA
Dimension size	H*W*D:（800*400*200）mm

Lastly, the pH sensor datasheet includes information about the sensor’s maintenance and calibration. This section provides guidelines on how to clean and calibrate the sensor to ensure its optimal performance and longevity. It also includes information about the sensor’s lifespan and recommended replacement intervals. Regular maintenance and calibration are crucial for the sensor’s accuracy and reliability, as neglecting these procedures can lead to inaccurate measurements and premature sensor failure.

In conclusion, a pH sensor datasheet is a comprehensive document that provides all the necessary information about the sensor. Understanding the key elements in a pH sensor datasheet, such as the sensor’s specifications, operating conditions, performance, and maintenance, is crucial for users to ensure the sensor’s optimal performance and longevity. Therefore, it is highly recommended for users to thoroughly read and understand the pH sensor datasheet before using the sensor.

How to Interpret Information from a pH Sensor Datasheet

A pH sensor datasheet is a crucial document that provides detailed information about the specifications, performance, and operating conditions of a pH sensor. Understanding how to interpret this information is essential for anyone who uses these sensors, whether in a laboratory, industrial, or environmental setting.

Controller type	ROC-7000 Single-stage/Double-stage Reverse osmosis control integrated system
	Cell constant		0.1cm-1		1.0 cm-1	10.0cm-1
Conductivity  measurement parameters	Raw water conductivity				（0～2000）	（0～20000）
	Primary conductivity		（0～200）		（0～2000）
	Secondary conductivity		（0～200）		（0～2000）
	Temperature compensation		Automatic compensation on the basis of 25 ℃ ,compensation range（0～50）℃
	Accuracy		Matched precision：1.5 level
Flow measurement range	Instantaneous flow		（0～999）m3/h
	Accumulative flow		（0～9999999）m3
pH	Measurement range		2-12
measurement parameters	Accuracy		±0.1pH
	Temperature compensation		Automatic compensation on the basis of 25 ℃ ,compensation range（0～50）℃
DI acquisition	Input signal		Low pressure switch of Tap water,high level of pure water tank, low level of pure water tank, low pressure switch before the pump, high pressure switch after the primary booster pump,high level of secondary pure water tank, low level of secondary pure water tank,high pressure switch after the secondary booster pump
	Signal Type		Passive switch contact
DO Control	Control output		Inlet valve, primary flush valve, primary drain valve, antiscalant pump, raw water pump, primary booster pump, secondary booster pump, secondary flush valve, secondary drain valve, pH adjustment metering pump.
	Electrical contact		Relay（ON/OFF）
	Load capacity		3A(AC 250V)~ 3A(DC 30V)
Display screen	Screen color:TFT；resolution:800×480
Working power	Working power			DC 24V±4V
	Power consumption			≤6.0W
Working environment	Temperature:(0～50)℃；Relative humidity:≤85%RH（non condensation）
Storage environment	Temperature:（-20～60）℃；Relative humidity:≤85%RH（non condensation）
Installation	Panel mounted	Hole（Length×Width，192mm×137mm）

A pH sensor, also known as a pH probe or electrode, is a device used to measure the acidity or alkalinity of a solution. The sensor works by generating a voltage proportional to the pH of the solution it is immersed in. This voltage is then converted into a pH reading by the sensor’s associated electronics.

The first piece of information you will find on a pH sensor datasheet is the sensor’s measurement range. This tells you the range of pH values that the sensor can accurately measure. Most pH sensors have a measurement range of 0 to 14, which covers the entire pH scale. However, some specialized sensors may have a narrower or wider range, depending on their intended application.

Next, you will find the sensor’s accuracy specification. This tells you how close the sensor’s readings are to the actual pH value. Accuracy is usually expressed as a plus or minus value, such as ±0.01 pH units. The smaller this value, the more accurate the sensor is. However, keep in mind that a sensor’s accuracy can be affected by factors such as temperature, pressure, and the presence of interfering substances in the solution.

The datasheet will also provide information about the sensor’s response time. This is the time it takes for the sensor to respond to a change in pH and provide a stable reading. Faster response times are generally better, especially in applications where the pH can change rapidly.

Another important piece of information on a pH sensor datasheet is the sensor’s temperature range. This is the range of temperatures at which the sensor can operate without suffering damage or significant loss of accuracy. If you plan to use the sensor in conditions outside this range, you will need to take steps to protect it or choose a different sensor that is better suited to those conditions.

The datasheet will also provide information about the sensor’s construction and materials. This includes the type of glass used in the sensor’s pH-sensitive electrode, the type of reference electrode used, and the materials used in the sensor’s body and cable. These details can affect the sensor’s durability, chemical resistance, and suitability for different applications.

Finally, the datasheet will provide information about the sensor’s maintenance requirements. This includes the recommended cleaning and calibration procedures, as well as any special storage conditions. Proper maintenance is crucial for ensuring the sensor’s accuracy and longevity.

In conclusion, a pH sensor datasheet provides a wealth of information that can help you choose the right sensor for your needs and use it effectively. By understanding how to interpret this information, you can ensure that your pH measurements are as accurate and reliable as possible.